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Noise Dosimeters - Show All (21)Hide
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Solutions:

Noise Dosimeters

Microphones - Is it okay to swap microphones between dosimeters?

Yes, provided certain actions are taken each time this is done. Microphones are manufactured and tested to performance standards that are applicable to the microphone alone. Likewise the dosimeter electronics are manufactured and tested to performance standards that are applicable to the dosimeter electronics alone. The performance standards of each of these two components of the noise dosimeter are specified tightly enough that any microphone and dosimeter combination that passes their respective independent tests is assured to meet the overall performance standards applicable to the noise dosimeter inclusive of the microphone. However, variances in sensitivity from one microphone to another must be addressed each time a microphone is swapped from one dosimeter to another. It is considered best practice to perform a field calibration using an acoustical calibrator before each use of a noise dosimeter regardless of whether or not the microphone is swapped. The variances in sensitivity from one microphone to another are automatically resolved when you perform the field calibration.

Noise - How does background noise affect measurements?

Background noise can cause considerable error in measurement when the background noise level is close to the level of the noise source of interest. When it is not possible to eliminate or reduce the background noise, a correction factor may be applied to the overall measurement to find the level of the noise of interest. The user must first make a measurement of just the background noise, without the noise source of interest. Then make another measurement with the source of interest. If the difference between the overall measurement and just the background noise is greater than 7dB, then the error due to the background noise is less than 1dB.

Noise: If my shift length is not 8 hours, shouldn’t I change the Criterion Level on the dosimeter accordingly?

NO. As of this date dosimeter standards are written around 8 hour work days. Even if a work day is of another length, the dose Criterion level remains the same.

Noise: Is it okay to swap microphones between dosimeters?

Yes, provided certain actions are taken each time this is done. Microphones are manufactured and tested to performance standards that are applicable to the microphone alone. Likewise the dosimeter electronics are manufactured and tested to performance standards that are applicable to the dosimeter electronics alone. The performance standards of each of these two components of the noise dosimeter are specified tightly enough that any microphone and dosimeter combination that passes their respective independent tests is assured to meet the overall performance standards applicable to the noise dosimeter inclusive of the microphone. However, variances in sensitivity from one microphone to another must be addressed each time a microphone is swapped from one dosimeter to another. It is considered best practice to perform a field calibration using an acoustical calibrator before each use of a noise dosimeter regardless of whether or not the microphone is swapped. The variances in sensitivity from one microphone to another are automatically resolved when you perform the field calibration.

Noise: The Q-100, Q400, or Q-500 dosimeter displays DFx or DEFAULT x on the power up instead of the normal Inl or INITALIZING; Why?

Depending on the default number, x, this is an indication that peak calibration constants have been lost, the serial number has been lost, and/or the setup information has been lost. The most likely cause for this is that the lithium battery inside the meter is dead. That lithium battery backs-up the above information when the 9Volt battery is removed. To correct the default condition the lithium battery should be replaced. Then the lost information must be restored. The end user cannot replace the lithium battery this is done by our service technicians.

Noise: What is Criterion Level?

The criterion level is used in the Dose calculation; If the dosimeter is exposed to a decibel level equal to the criterion level for 8 hours the result will be 100% dose. The criterion level is typically set by a regulating agency such as OSHA and usually not applicable for community noise monitoring. Example: OSHA mandates the criterion level (maximum allowable accumulated noise exposure) to be 90dB for 8 hours. For an 8 hour sample, an average level (LAVG) of 90dB will result in 100% dose. For the OSHA HEARING CONSERVATION AMENDMENT, the \Action Level\ is 85dB for 8 hours. This would result in a 50% dose reading. Note that the criterion level has not changed. [If the criterion level is changed to 85dB then an 8 hour average of 85dB would result in 100% dose.]

Noise: What is Dose?

Related to the criterion level, a dose reading of 100% is the maximum allowable exposure to accumulated noise. For OSHA, 100% dose occurs for an average sound level of 90dB over an 8-hour period (or any equivalent exposure). By using a TWA reading rather than the average sound level, the time period is no longer explicitly needed. A TWA of 90dB is the equivalent of 100% dose. The dose will double (halve) every time the TWA increases (decreases) by the exchange rate. Example: OSHA uses an exchange rate of 5dB. Suppose the TWA is 100dB. The dose would double for each 5dB increase over the criterion level of 90dB. The resulting dose is therefore 400%. If the TWA was instead equal to 80dB then the dose would halve for each 5dB below the criterion level. The resulting does would be 25%. When Taking noise samples less then the full workday, dose is an easy number to work with because it is linear with respect to time. Example: If a 0.5 hour sample results in 9% dose and the workday is 7.5 hours long, then the dose for the full workday would be computed as (7.5 hours / 0.5 hours) *9%=135% dose. This is computed making the assumption that the sampled noise will continue at the same levels for the full 7.5 hour workday.

Noise: What is Exchange Rate or (Doubling Rate)?

Exchange rate refers to how the sound energy is averaged over time. Using the decibel scales, every time the sound energy doubles, the measured level increases by 3dB. This is the 3dB exchange rate that most of the world uses. For every increase of 3dB in the time-weighted average the measured DOSE would double. For OSHA and MSHA measurements, the Exchange Rate is 5. Some organizations such as OSHA in the U.S. have argued that the human ear self compensates for changing noise levels and they felt that the 3dB exchange rate should be changed to more closely match the response of the human ear. OSHA currently uses a 5dB exchange rate, which would mean that the reported DOSE would double with every 5dB increase in the time-weighted average. The exchange rate affects the integrated reading LAVG, DOSE, and TWA but does not affect the instantaneous sound level.

Noise: What is LAVG?

LAVG is simply the average sound level measured over the run time. This becomes a bit confusing when thresholds are used. Any sound below the threshold is not included in this average. Remember that sound is measured in logarithmic scale of decibels therefore the average cannot be computed by simply adding the levels and dividing by the number of samples. When averaging decibels, short durations of high levels can significantly contribute to the average level. Example: Assume the threshold is set to 80dB and the exchange rate is 5dB (the settings of OSHA’s Hearing Conservation Amendment). Consider taking a one-hour noise measurement in an office where the A-weighted sound level was typically between 50dB and 70dB. If the sound level never exceeded the 80dB threshold during the one hour period, then the LAVG would not indicate any reading at all. If 80dB was exceeded for only a few seconds due to a telephone ringing near the instrument, then only those seconds will contribute to the LAVG resulting in a level perhaps around 40dB (notably lower than the actual levels in the environment).

Noise: What is LEQ?

The true equivalent sound level measured over the run time. The term LEQ is functionally the same as LAVG except that it is only used when the exchange rate is set to 3dB and the threshold is set to none.

Noise: What is MAX LEVEL?

The MAX LEVEL is the highest sampled sound level during the instrument’s run time allowing for the RESPONSE (fast or slow) and WEIGHTING (A or C). It is the highest value that is included in Average or Dose calculations.

Noise: What is PEAK LEVEL?

PEAK LEVEL is the absolute highest pressure wave that is detected by the microphone. Unlike the MAX LEVEL, PEAK is detected independent of dosimeter settings for RESPONSE or WEIGHTING. The PEAK circuitry responds in 50 micro seconds usually with Linear Weighting (depends on dosimeter model). Test this by simply blowing across the microphone. You will notice that the peak reading may be 120dB or greater. When taking a long term noise sample (such as a typical 8 hour workday sample for OSHA compliance), the peak level is often very high. Because brushing the microphone over a shirt collar or accidentally bumping it can cause such a high reading, the user must be careful of placing too much emphasis on the reading

Noise: What is RESPONSE (FAST, SLOW)?

The response determines how quickly the unit responds to fluctuating noise. Fast is a time constant of 125 milliseconds. Slow is a time constant of 1 second. Example: Typically, noise is not constant. If you were to try to read the sound level without a response time, the readings would fluctuate so much that determining the actual level would be extremely difficult. Using a response of slow or fast simply smoothes the noise fluctuation and makes the sound level easier to work with. While the terms slow and fast have very specific meanings (time constraints), they work very much as you would expect. The fast response would result in a more fluctuating sound level reading then would the slow response. The OSHA regulations require slow response.

Noise: What is SEL?

The sound exposure level averages the sampled sound over a second period. Assuming the sampled run time to be greater than one second, SEL is the equivalent one second noise that would be equal in energy to the noise that was sampled. SEL is typically measured using a 3dB exchange rate without a threshold. (SEL is not used by OSHA). Example: Suppose you wanted to measure in a location next to railroad tracks which also happend to be in the takeoff path of an airport. A train passes by taking 10 minutes with an average sound level of 82dB. A jet passes overhead taking 45 seconds with an average sound level of 96dB. Which of these events results in more sound energy? You can answer the question by comparing their SEL readings, which compress each event into an equivalent on second occurrence. (SEL for the train = 109.7dB, SEL for the jet=112.5dB).

Noise: What is the difference between Lavg and TWA?

Lavg is the average sound level over the run time of your sample. If you ran the meter for 30 minutes, Lavg is the average sound level over that 30-minute period. TWA always assumes an 8-hour run time. So if you ran the meter for 30 minutes, TWA would assume 7 hours 30 minutes of silence and give the 8 hour average.

Noise: What is THRESHOLD (CUT OFF)?

The threshold affects the LAVG, TWA, and DOSE measurements. All sound below the Threshold is considered non-existing noise for the averaging and integrating functions. The threshold does not affect measurements in the sound level mode. OSHA uses two different thresholds. The original Occupational Noise Exposure Standard (1971) uses a 90dB threshold and called for engineering controls to reduce the noise levels if the eight-hour TWA was greater then 90dB. The Hearing Conservation Amendment (1983) uses an 80dB threshold and calls for a hearing conservation program to be put in place if the eight-hour TWA exceeds 85dB (50% dose). The Hearing Conservation Amendment is the more stringent of the two rulings and is what most US industrial users are concerned with. Example: With a 80dB threshold, suppose you placed a 79dB calibrator on the unit for a period of time. Because all of the noise is below the threshold, there would be no average (you can think of it as an average of 0dB). If the calibrator were 80dB instead, then the average would be 80dB. On histogram printouts, typically 1-minute (or other specified increment) averages are printed. Because real noise fluctuates, it is quite possible to have an average level below the threshold. This also applies for the overall LAVG.

Noise: What is TWA?

The time-weighted average always averages the sampled sound over an 8-hour period. TWA starts at zero and grows. The TWA is less than the LAVG if the run time is less than eight hours, and grows higher than LAVG after eight hours. TWA represents a constant sound level lasting eight hours that would result in the equivalent sound energy as the noise that was sampled. Example: Think of TWA as having a large 8-hour container that stores sound energy. If you run a dosimeter for 2-hours, your LAVG is the average level for those 2-hours, consider this a smaller 2 hour container filled with sound energy. For TWA, take the smaller 2-hour container and pour that energy into a larger 8-hour TWA container. The TWA level will be lower. Again, TWA is ALWAYS based on the 8-hour container. When measuring using OSHA’s guidelines, TWA is the proper number to report provided that the full work shift was measured. Example: If the work shift is 6.5 hours long, then measure for the entire 6.5 hours. TWA is the correct level to report to OSHA. It does not have to be modified.

Noise: What is UPPER LIMIT?

This is a feature available on many of the Quest dosimeters. The user can select a certain dB level. The dosimeter will then record the amount of time that the sound level was at or greater than the preset level. This time is then recorded as UL TIME.

Noise: What is WEIGHTING?

Weighting is the filtering of sound before averaging. A, B, C and LINEAR are the standard weighting networks available. These are frequency filters that cover the frequency range of human hearing (20 Hz to 20 KHz). A weighting is the most commonly used filter in both industrial noise applications (OSHA) and community noise regulations. A weighted measurements are often reported as dBA. The A weighted filter attempts to make the dosimeter respond the way the human ear hears. It attenuates the frequency below several hundred hertz as well as the high frequencies about six thousand hertz. B weighting is similar to A but with less attenuation. The B weighting is very seldom, if ever used. C weighting provides a fairly flat frequency response with only slight attenuation of the very high and low frequencies. C weighting is intended to represent how the ear perceives sound at high decibel levels and is often used as a flat response when LINEAR is not available. C weighted measurements are often reported as dBC. LINEAR is thought of as having a flat frequency response curve over the entire measurement frequency range. LINEAR is most commonly found on upper model sound level meters and is typically used when performing octave band filter analysis. LINEAR weighting is being replace by Z which is defined a flat from 20 Hz to 20 KHz.

Noise: Why does my Q-200 lock up?

The Q-200 does not have a lithium backup battery; therefore the instrument’s memory becomes unstable when the battery is removed. After battery replacement it is necessary to reset the unit before operation.

NoisePro - What are the factory default settings?

Dosimeter 1 Dosimeter 2 Dosimeter 3 OSHA Hearing Conservation Controls OSHA Engineering ACGIH Threshold 80dB 90dB 80dB Exchange Rate 5dB 5dB 3dB Criterion Level 90dB 90dB 85dB Freq. Weighting A A A Response Time Slow Slow Slow
Sound Level Meters

Sound: How do the four SoundPro DLX models vary from one another?

There are two Class 1 and two Class 2 models. Full octave filters are standard in all four models. Third octave filters are optionally available in Class 1 and Class 2. The overall bandwidth of the Class 1 models is broader than the Class 2 models, so the available number of full and 1/3 octave bands in the Class 1 models is greater than the Class 2 models. Specifics are explained in the SoundPro DLX Technical Specifications Data Sheet available from our web site. The Class 1 models also include four advanced features -- Voice Notes, Drawing Pad, Back-Erase and Sound Curve Capture.

Sound: Should the SLM be pointed directly at the sound source or held at an angle?

Quest SLM’s may be used with different types of microphones: free field or pressure. The type of microphone determines the angle at which the SLM should be held. If using a free-field microphone, then the meter’s microphone should be pointed directly at the sound source. If using a pressure type microphone, then the meter should be held at approximately 90 degrees to the sound source. This angle only really matters at higher frequency noises. Refer to the user’s instruction manual for information on the type of microphone used on the meter.

Sound: Type 1 or Type 2 - What is the difference?

This is an accuracy specification. There is an entire ANSI standard written around the difference between Type 1 and 2. The accuracy of the measurements varies depending on the frequency of the sound being measured. Basically Type 1 means approximately ± 1dB accuracy and Type 2 means approximately ± 2dB accuracy. But again, this varies depending upon the frequency of the sound.

Sound: What are Octave Band Filters and how do I use them?

When a measurement is made with a SLM without the OB filter, the SLM is measuring sound levels over a range of frequencies and combining them into one overall (broad-band) sound level. An OB filter is used to find the sound level just at one specific frequency. When used with an OB filter, the SLM should be set to Fast Response (for quicker settlings after changing frequency selection on the OB filter), and Linear Weighting. The Linear weighting setting will not attenuate, or lessen, the sound level at any frequency.

Sound: What is the Sound Curve Capture feature?

This is a standard feature in both Class 1 models. Think of this as a camera taking a snapshot of the measured values for a full spectrum of frequencies all at once. This could be all full octaves or all 1/3 octaves, depending on model. These snapshots can then be stored in memory of the SoundPro DLX and/or in QuestSuite Pro II. Over time you can effectively build a library of sound curves. These curves can be transferred back and forth into any SoundPro DLX or recalled from internal memory of the SoundPro DLX for comparison on one screen with current real-time measurements. Applications include building libraries of “good” sound curves and using them to rapidly and conveniently identify compliant and non-compliant product, activities or processes during future measurements. The same concept can be applied to identifying equipment requiring maintenance.
Heat Stress Monitors

Heat Stress: Globe - Should I use the 6-inch or 2-inch globe?

The Globe part of the WBGT measurement calls for a 6-inch (15 cm) diameter hollow copper sphere painted matte black on the outside, or the equivalent. The standard QT-34 and QT-36 sensor bar comes with a 2-inch globe for faster response time. The temperature of the 2-inch globe is correlated to match that of a 6-inch globe. An optional sensor bar with a 6-inch globe is available, if desired, but is not necessary.

Heat Stress: How is the Alarm jack on the side of the QT-15 used?

The alarm jack is connected to a relay. The normal condition of the relay (no for normally open or nc for normally closed) is set when the temperature alarm level is set. Then when the QT-15 goes into an alarm, the state of the relay will change. External devices connected to the QT-15 alarm jack are turned on or off when that relay changes conditions.

Heat Stress: How is the QT-34 or QT-36 Area Heat Stress Monitor calibrated?

The End user can check the calibration of the area heat stress monitor using the calibration module that is shipped with the monitors. The calibration module is a small connector that plugs into the port on the top of the monitor where the sensor bar is usually assembled. If the QT-34 or QT-36 is out of tolerance, then the monitor must be sent back to Quest for calibration. There is no adjustment for the end user to make.

Heat Stress: There are temperature levels on the QT-II Personal Heat Stress Monitor printout about 110 degrees Fahrenheit; how can this be?

The QT-II monitor should be calibrated to the individual in the environment where the wearer will be working. If that environment changes by more that 10 degrees Celsius (18 degrees Fahrenheit), then the unit must be recalibrated. If the QT-II is not recalibrated after that much of a temperature change, then the temperatures logged will appear very high.

Heat Stress: WBGT - What is it?

It stands for Wet Bulb Globe Temperature. It is a weighted averaged of the three sensors on an area heat stress monitor: the Wet Bulb, Globe, and Dry Bulb. The WBGT formula for indoor measurements is 0.7WB + 0.3G. The WBGT formula for outdoor measurements is 0.7WB + 0.2G + 0.1DB.

Heat Stress: Why is the temperature sensor of the QT-II placed in the ear for personal monitoring?

There are several other ways of tracking core body temperature that work (down the esophagus, orally, anally, or via skin contact) but you need to find one you can work with. Most people would rather put an earplug in their ear than swallow a sensor, or one of the other methods. The sensor we use is mounted inside a standard foam earplug, so the sensor only goes as far as the earplug. The earplug has a Noise Reduction Rating of 22. The ear sensor tracks the temperature of the tympanic membrane, which is near the blood flow to the hypothalamus. The hypothalamus regulates body temperature. At the time Quest was developing the QT-II personal monitor, the technology for taking temperatures using the ear sensor was becoming more acceptable in hospitals and is now available to consumers.

Heat Stress: Why would I need a QT-34/3 or QT-36/3 with three sensor bars?

When the temperature in the space surrounding a worker does not have a constant value, it is necessary to determine the WBGT index at three heights corresponding to the worker’s ankles, abdomen, and head. A weighted average is then calculated using those three WBGT measurements. This is based on ISO 7243:1989. Also, one unit may be used to monitor three sensor bars at different locations of a plant, shop, or any area up to 100 feet away.

QT-34/3 or QT36/3 - Why would I need three sensor bars?

When the temperature in the space surrounding a worker does not have a constant value, it is necessary to determine the WBGT index at three heights corresponding to the worker’s ankles, abdomen, and head. A weighted average is then calculated using those three WBGT measurements. This is based on ISO 7243:1989. Also, one unit may be used to monitor three sensor bars at different locations of a plant, shop, or any area up to 100 feet away.
Indoor Air Quality Monitors (IAQ)

IAQ: Do the temperature and humidity sensors on my indoor air quality monitor need to be calibrated?

There is no field calibration needed for the temperature and humidity sensor, however these sensors will undergo verification testing when your aq-5000/ 50001 is sent in for factory recertification.

IAQ: How do I set the date and time on my aq-5000/5001 ?

The date and time of the aq-5000/5001 are set automatically when the unit is programmed using the software package. Using the software, simply create a new or view an existing setup file, program the recorder and the date and time from the computers real time clock are sent to the aq-5000/5001. The aq-5000/5001 date and time will now match the computer from which it was programmed.

IAQ: How does the aq-5000 Pro Calculate Dewpoint?

Dewpoint = eighth_root( RH/100 ) * ( 9*Temp/10 + 112 ) - 112 + Tc/10 where: RH is the relative humidity in percent Temp is the temperature in degrees Celsius

IAQ: How long can the aq-5000/5001 or AQ5000/5001Pro run before memory is full?

# OF CHANNELS ON INTERVAL RUN TIME 1 1 Second 15 hr. 48 min. 2 1 Second 7 hr. 54 min. 3 1 Second 5 hr. 15 min. 4 1 Second 3 hr. 57 min. 5 1 Second 3 hr. 9 min. 1 1 Minute 39 days 13 hr. 2 1 Minute 19 days 18 hr. 3 1 Minute 13 days 4 hr. 4 1 Minute 9 days 19 hr. 5 1 Minute 7 days 21 hr. 1 5 Minute 197 days 21 hr. 2 5 Minute 98 days 22 hr. 3 5 Minute 65 days 19 hr. 4 5 Minute 49 days 9 hr. 5 5 Minute 39 days 13 hr. 1 10 Minute 395 days 19 hr. 2 10 Minute 197 days 21 hr. 3 10 Minute 131 days 14 hr. 4 10 Minute 98 days 18 hr. 5 10 Minute 79 days 3 hr. 1 15 Minute 593 days 18 hr. 2 15 Minute 296 days 21 hr. 3 15 Minute 197 days 9 hr. 4 15 Minute 148 days 3 hr. 5 15 Minute 118 days 18 hr.

IAQ: How long can the AQ-5000/5001 record?

The aq-5000/5001 has enough memory to store 57,344 data points. For example, with 3 channels (CO2, Temp and Humidity) recording data points every minute the unit can record for 13 days and 6 hours.

IAQ: I just finished calibrating the CO2 sensor on my aq-5000/5001 and the reading is very unstable, what could be wrong ?

In most instances unstable readings are a direct result of the user calibration. In some instances users have the incorrect gas attached to the unit when they press the enter button. In other instances they have set the CO2 span level to a number that does not match the CO2 span gas being used. In any instance the unstable reading should be corrected by simply performing another calibration being sure to do the CO2 zero first and then the CO2 span. Because of interaction between the zero and span it may be necessary to zero and span the unit and then zero and span the unit a second time. This will usually return the reading to a stable condition.

IAQ: What are the recommended calibration gases for the CO2 sensor ?

To zero the CO2 sensor you should use Nitrogen (N2). For the span of the CO2 sensor you need to consider what range you want to monitor. The aq-5000/5001 CO2 channel can be programmed for either 5000 or 20,000 ppm full scale. For the 5000 ppm full scale range we recommend using 1000 or 5000 ppm CO2. For the 20,000 ppm full scale range we recommend using 10,000 ppm CO2.

IAQ: What is STEL?

STEL is a 15 minute rolling average (that rolls each minute). This means that the average reading is calculated after the first 15 minutes of logging and then again after each subsequent minute of logging. At the completion of each subsequent minute, the new 15-minute average is compared with the old and the higher of the two is stored and displayed.

IAQ: What is TWA?

TWA is an average based on an 8 hour interval. The average is taken by summing all of the the samples taken and dividing by the number of samples in 8 hours (28800 for the aq-5000 Pro). The important thing here is that the average is calculated the same way regardless of whether you've run the instrument for 1 hour, 8 hours, 24 hours or any other amount of time (i.e. the number of samples used to divide by is the same).
Environmental Monitors (EVM)

EVM Gravimetric Sample: Can we run the unit without a cassette?

The monitor should not be run without a cassette. The monitor is installed with a pump protection filter cassette. As its name indicates, it protects the pump from particulate matter. This cassette or a new cassette (if performing a gravimetric sample) should always be installed. It should be noted that the pump protection filter cassette will periodically need to be cleaned or replaced.

EVM Gravimetric Sample: Does Quest offer cassettes?

Quest Technologies offers a 5-pack of 37mm gravimetric cassettes (for pump protection). Order Part Number 074-076-5. Quest Technologies also offers a 10-pack, order Part Number 074-090; However, Quest does not offer any other filters for special testing.

EVM Gravimetric Sample: How do you replace the filters (which are supplied in the kit)?

The cassettes are separated using a “larger”-sized screwdriver. The backing should always remain in the cassette (white, thin cardboard-like circular disc) and the filter is placed on top of the backing. An EVM-7 or EVM-3 is shipped with 10-pack of replaceable filters. (Filters can be ordered in 5-packs via Quest.)

EVM Gravimetric Sample: What is the backpressure capabilities? (inches/water column)

>= 15 inches of water @ 1.67 LPM

EVM Gravimetric Sample: What type of cassettes can be installed?

Both 25mm and 37mm cassettes can be used in the EVM monitor.

EVM PID: Can the lamp be cleaned in the field?

The lamp can be cleaned in the field with the PID cleaning kit. A PID cleaning kit is shipped with an EVM unit if ordered with a PID sensor option. A PID cleaning kit can also be ordered from Quest Technologies (Part Number 074-080). See Chapter 7 (Maintenance & Cleaning) of the EVM Series user manual for instructions on cleaning the PID lamp.

EVM PID: Do you have a correction factor chart (or a library of PID correction factors) for various VOCs?

Quest has included a correction factor chart with the various VOC’s in Appendix C of the EVM series user manual.

EVM PID: How do I know when to clean the PID sensor for VOC measurements?

A “PID sensor error” message will appear on the screen which indicates (1) clean the sensor, (2) the lamp needs replacing.

EVM PID: How do we calibrate the PID?

A PID calibration is a two point calibration consisting of a zero and a span calibration. The flow rate at 1 PLM is recommended for best performance results (i.e., accuracy and repeatability). To perform a zero calibration Pure Air or Nitrogen should be used. To perform a span calibration Isobutylene gas should be used if the specific VOC is unknown or a specific VOC gas can be used. To calibrate the PID sensor navigate to the CALIBRATION\PID screen and perform a zero and span cal by applying gas to the monitor using the supplied calibration cup. See Chapter 4 of the EVM Series User Manual for details on PID calibration.

EVM PID: How often is calibration recommended?

Quest Technologies recommends calibrating the PID sensor prior to running a log session to adjust for sensor drift and wear.

EVM PID: Is the lamp field replaceable?

The PID lamp can be replaced by the user in the field. A replacement lamp can be ordered from Quest Technologies (Part number 074-081). See Chapter 7 (Maintenance & Cleaning) of the EVM Series user Manual for instructions on replacing the PID lamp. NOTE: You need to recalibrate the PID sensor after the lamp is replaced (or cleaned).

EVM PID: What is the difference between Accuracy and Resolution?

(1) Actual accuracy, resolution, and repeatability are related to the full operating range from 0 to 2000ppm; (2) Resolution, also called the Display Resolution, will display 0.01 resolution when less than 20ppm. (This is due to Quest’s ability to program a low-noise sampling system that provides 18-bits of resolution with stable zeroing results. Thus, the display resolution appears as 0.01 compared to other brands which display 0.1.) Accuracy: +/- 5% (+/- 100ppm) Display Resolution – +/-2% repeatability (+/- 40ppm)

EVM PID: What lamps will be available? (9.8, 10.6, 11.7 eV)

The EVM PID sensor supports a 10.6eV lamp.

EVM PID: Will Quest Technologies consider PPB resolution in future for Microbials (mold) for IAQ?

We are currently evaluating PID sensors with resolutions in the PPB range. At this time the EVM PID sensor only supports a PPM resolution sensor. For the question regarding measuring MOLD, this is not detected with the PID sensor. Instead, at high enough concentration, it may appear in the particulate mass concentration (depending on particle sizes of 0.1 to 10 um).

EVM PID: Will we offer a moisture trap or hydrophobic filter attachment?

Each gas sensor installed in the EVM, including PID, has a hydrophobic filter contained in the sensor housing.

EVM Pump/Airflow: Can we adjust the flow rate?

The flow rate can be adjusted (see the "How do we calibrate the pump?" question above). It should be noted that in order for the impactors to work properly the flow rate MUST be adjusted to 1.67 LPM.

EVM Pump/Airflow: How can we verify the constant flow?

Using an accurate flow meter (or primary standard), calibrate before your run/logging and verify after to ensure a constant flow rate. NOTE: The primary standard calibrator tubing is inserted in the air flow outlet (located at the back of the monitor).

EVM Pump/Airflow: How do we calibrate the pump?

An accurate flow meter (such as a primary standard calibrator) and tubing is required to perform this calibration. The primary standard calibrator tubing is inserted in the air flow outlet (located at the back of the housing). Navigate to the CALIBRATION\FLOW RT screen. Press the CAL quick key and then the START quick key. Adjust the flow rate (using the up and down arrow keys) to 1.67 LPM and then confirm by pressing the SAVE quick key. It should be noted that in order for the impactors to work properly the flow rate must be adjusted to 1.67 LPM.

EVM Pump/Airflow: How is the flow rate controlled?

There is a differential pressure sensor on the PC board that is used to measure the pressure drop across the orifice above. The reason is to maintain the correct pressure drop across the orifice.

EVM Pump/Airflow: How often do we need to calibrate the pump?

Quest Technologies recommends an annual factory calibration. If the user has an accurate flow meter, such as a bubble-flow meter, the user may perform more periodic pump calibrations.

EVM Pump/Airflow: Will the pump always regulate?

The pump tries to maintain 1.67 lpm flow rate. When the flow rate is not maintained, the message “Pump unable to regulate” will appear on the screen’s display. Solution: (1) the gravimetric cassette may need to be replaced, (2) detach any external devices (such as a cyclone).

EVM Toxic Sensors: How many toxics can I measure simultaneously?

One toxic sensor (which is located in the left position of the housing); in addition to PID (middle position) and CO2 (right position).

EVM: Do I need to calibrate before I run real-time particulate measurements?

Yes, it is recommended to perform a zero calibration in each environment you will be measuring particulates. To perform a zero calibration, ensure that the zero filter/HEPA filter is attached, the impactor is well greased, and the turret is set to PM. Then, using the keypad navigate to Calibrate>PM screen and perform a zero calibration. (Please see Chapter 4 of the EVM Series User Manual for specific details.) NOTE: a zero calibration may be used when performing area-survey monitoring. However, if you are testing in accordance to NIOSH0600 or if you want to measure the actual mass concentration in a specific environment, you would run a gravimetric calibration to determine a correction factor referenced to the ARD.

EVM: For particulate measurements, how is the EVM-7 and EVM-3 calibrated in the factory?

Each instrument is factory calibrated to the ISO 12103-A2 Fine (Arizona Road Dust). A factory calibration is conducted with a “golden” instrument that is calibrated using a certifiable gravimetric sample. Quest Technologies recommends a yearly factory calibration.

EVM: How do I know when to clean the optical engine/photometer?

The following conditions may occur: (1) If calibrating the particulate (PM) sensor and it will not zero, this indicates the optical engine will need cleaning. (2) The instrument is exposed to oily or wet mists. (3) The readings are falling lower and lower indicating the mirror is dirty. (Please see Chapter 7 of the EVM series manual for details on cleaning and maintenance.)

EVM: How do I set the cut-points for particulate measurements?

Turn the turret until the appropriate setting is displayed on the instrument’s screen. (Settings include: PM2.5, PM4, PM10, and PM. NOTE: PM is unfiltered particulate collector and allows all sizes through the dust path for collection and measurement.)

EVM: How does the impactor work when there is a build-up of particulates (in a conical shaped pyramid)?

When the build-up of particulates form a shaped pyramid, it will not measure appropriately. This is the indicator to clean the impactor. The reason: As with any impactor-type filter, this filter relies on the larger particles being unable to “turn the corner”, striking the greased-plate and being filtered out of the stream. As the pyramid builds up more and more, particles will begin to gently slide on past the impactor plate. We provide a fourth inlet which can be connected to a cyclone if extreme environments and/or longer run-times are needed. NOTE: the impactors are designed to work correctly ONLY at 1.67 lpm.

EVM: How long will the battery last with the EVM series?

The battery is an internal lithium-ion rechargeable battery pack which will last at least 8 hours with continuous setup time, run time, and viewing your results time. (NOTE: the battery is not user accessible or user replaceable.) Battery life-time is estimated at 500 charge cycles or around 3 years of use before you will need to replace the battery pack.

EVM: How many correction factors can be stored on the monitor and in QSP-II?

The EVM supports 8 different particulate matter (PM) configurations/profiles with customized name settings and user correction factor settings. See Chapter 3 for instrument profile set-up or Chapter 6 for QSP-II set-up of the EVM Series user Manual for more details.

EVM: How often do you need to apply the grease to the impactors?

The impactors require periodic cleaning (and greasing) which is dependent on the density of air particulates floating in the intended environment. A relatively dusty environment (approximately under10mg/m3) should last an entire day. When dust pyramids form on impactor plates this signifies they require cleaning and greasing. Please refer to Impactor Care Section and the Optical Engine Maintenance and Cleaning Section in Chapter 7 of the EVM Series User Manual for cleaning details.

EVM: Is it possible to do an inhalable or respirable gravimetric sample?

Yes, it is possible to do inhalable and respirable gravimetric sampling. This can be accomplished through the "dial-in" impactors or with a cyclone in the open (4th) hole on the turret. This hole is used for zeroing the instrument as well as allowing the use of a cyclone in that inlet port.

EVM: Is there an alarm output?

The Digital-Out (or digital-output) can be configured for any installed sensor at user specified threshold.

EVM: What do the impactor cut-points represent?

Depending on the environment and the industrial processes (such as sanding, cutting, crushing, grinding, and transportation), the type and size of the particulates will impact the human body in different areas, affecting the nasal, throat, and/or lung area. The impactor cut-points represent the particle size you will be sampling. Inhalable dust is 100 microns and smaller. This dust is usually filtered through the hairs and membranes in your sinuses. 10 microns and smaller is thoracic, and dust in the 4 - 10 micron size can get caught in you windpipe and other regions. 4 microns and smaller is respirable and this is what causes concerns and the need for PM4.

EVM: What if I need to calibrate particulates in accordance to NIOSH0600?

A gravimetric calibration is performed. The steps below outline a gravimetric calibration. (Please see Chapter 4 of the EVM Series User Manual for specific details.) 1. Reset the gravimetric and volume accumulators. 2. Insert a new (sealed) gravimetric cassette. 3. Measure in the specific location for approximately four to eight hours. 4. Proceeding the measurement, the gravimetric accumulator on the EVM will display the amount of dust that has accumulated based on the active profile. (This value is used in conjunction with the weight of the measured dust in the cassette.) 5. To determine the weight of particulates in the gravimetric filter, remove the gravimetric cassette and weigh the contents. (Typically, sent to a lab for results.) Do not include the weight of the cassette. 6. To determine the correction factor, calculate the ratio between the particulate mass value and the weight from the gravimetric filter lab analysis.  For example, let’s say that you measured for 8 hours in a wood shop and the PM mass accumulator displays 10 mg. You then measured the dust in the gravimetric filter/cassette and determined the weight as 20 mg. To calculate the correction factor, divide 20 mg by 10 mg and your value is 2. The correction factor of “2” is multiplied by the existing active profile correction factor, and is entered as the new correction factor (Setup\PM\EDIT PROFILE).

EVM: What if I want to enter in the correction factor after running/logging particulate measurements?

You can adjust/change the correction factor in QuestSuite Professional II after the session has been downloaded. The Dust Correction Override feature is a type of scaling factor that will re-calculate the data instantly in the chart or graph you are viewing. (NOTE: the Dust Correction Override field is displayed in the General Data panel and is applied to the dust measurements in the logged data chart/table when dust is the selected parameter. To apply, select the dust override icon and add a new value.)

EVM: What is the long, black plastic bar over the sensors and how is it used?

The manifold is used to improve response time during the calibration process and use (running, logging, and viewing measurements).

EVM: What is the particulate path?

(1) Air travels through the impactor and the larger, heavier particulates will stick to the greased plates within the impactor. (2) While the pump maintains the flow rate, the smaller, lighter particulates will pass through the optical engine, (3) and will collect/trap in the gravimetric filter/cassettes. (4) The remaining clean/filtered air passes through the pump, (5) then to the pressure sensor (flow-control orifice hole), (6) and lastly to the Outlet on the back of the instrument.

EVM: What is the Path for Gas (Toxic, CO2 and PID)?

(1) The path begins with the air pulling through the air inlet cover. (2) The air continues through the gas sensor bar passing the Toxic, PID, and CO2 sensor chambers. (3) It is continuously ventilated by the fan. (NOTE: When the pump is off, the fan can be heard near the louvers on the back cover.)

EVM: When test collecting real-time particulate measurements for a period of time, how do I verify the calibration?

First, ensure you performed a zero calibration prior to your testing (with the supplied Zero/HEPA filter). Run your real-time particulate measurements. Then, perform a Calibration (PM) Verify via the Verify softkey/quick key. (Please see Chapter 4 of the EVM series user manual for specific details.)
Gas Detection Monitors

Gas Monitor: How often should the sensors be replaced?

The Toxic sensors should last about 2 years, except the ammonia NH3 sensor which lasts 300 ppm hours and the hydrogen cyanide HCN sensor which lasts 400 ppm hours. The combustible or LEL sensor can last many years. The sensors will need to be replaced when they no longer respond properly to calibration gas.

Gas Monitor: How often should the user calibrate the monitors?

The user should calibrate or do a functional test, which means apply a known concentration of calibration gas and be sure the sensors respond properly. YES, the user will have to purchase calibration gas. NO, they don’t have to purchase it from Quest Technologies.

Gas Monitor: I am unable to Zero my ML2000 from the main menu, It always comes back with the message Zero Failure. What can I do?

The Zero window from the main menu is limited depending on the particular sensor. If a sensor is relatively new or if it has not been zeroed for a long time, If may have drifted beyond the limits of the window. Menu to the instrument Calibration and do a fresh air zero. If an O2 sensor is installed, do a fresh air calibration. That should correct the problem.

Gas Monitor: I put a new sensor in the gas monitor and it won’t zero or calibrate and it’s in alarm or reading negative why?

All sensors except the LEL sensors must be in the unit with good batteries for a stabilization period before calibration and using the sensor. NH3, EtO, and NO may require up to 3 days to stabilize, 24 hours minimum. O2 and the other toxics will require 24 hours to completely stabilize. The unit needs to have a charged battery pack or good alkaline batteries for the sensors to stabilize. The unit does not need to be turned on; the sensors will draw a small amount of current even when the unit is in the OFF mode.

Gas Monitor: The ML-2000 or MC-2000 displays \Service Required\ on power up; why?

The ML-2000 and MC-2000 units allow the user to program a Service Required date for each individual sensor. That user programmable service date is saved on the small pc board mounted inside the sensor housing and travels with the sensor. It allows the user to set a date as a reminder to have the sensors replaced, have the units sent to the factory for calibration, or any other action the user wants. The user should press the I/O button to acknowledge the message and the unit will continue with the warm-up routine. To change the service date, menu to \Setup\ and then to \Service Dates\. Entering a date in the future will remove the message until that date occurs.

Gas Monitor: The NiCad or NiMH battery charger is indicating that the charge is complete, but the battery pack is only partially charged; why?

If there are interruptions to the power supply to the charger, or if the voltage to the charger drops below 90V even temporarily, the charger resets itself to a \Charge Complete\ mode. If this is happening you will need a regulating switching supply from Quest which will constantly output the necessary voltage even if the input voltage drops below 90V (part numbers 060-095 Line Cord and 054-721 Power Supply).

Gas Monitor: When I press the ZERO key on my SafeLog 100 the display shows 2Ero. What does that mean?

This display message means the instrument is ready to be Zeroed. Because of the display limitations, sometimes a little imagination is needed to understand the information displayed.
QuestSuite Software

QuestSuite™: Can I move QuestSuite to another computer?

Yes, if you are using version 3.74 or newer, use the 'Transfer Software License' feature under Setup, Authorize. If you have an older version contact your dealer or Quest Technologies directly for a new installation CD.

QuestSuite™: Can I overlay graphs?

No. At this time you cannot overlay or super-impose one graph on top of another. You can tile multiple graphs on the screen, though. To do this, open two different graphs as normal, and then go to \Window-Tile Vertically\.

QuestSuite™: Can I run QuestSuite Professional in a networked client/server configuration so I only have to maintain one copy of QSP?

QSP can be operated in a networked configuration where the application is installed only once on your server and is accessed from client machines only at runtime. This will require some additional steps beyond just the installation of QSP on your server. The attached file explains the creation and execution of batch files run on both the server and each client machine to enable this method of operation.

QuestSuite™: Can I use the authorization code again?

Never. Not even on the same computer - it will not work. Authorization codes are NOT pre-determined by Quest or your dealer - they are generated for each unique site code that is created based on unique characteristics of your computer. We do not know any codes ahead of time, they are created by a security program that Quest purchased from a firm that specializes in such products.

QuestSuite™: How do I add another application to QuestSuite?

To add an applet, please call your dealer. You will receive an upgrade CD with instructions.

QuestSuite™: How do I get updates?

The fastest way you can get the latest update is by visiting our website at: http://www.quest-technologies.com, or email us at quest.mail@mmm.com or contact us directly. At this time, updates from the website are not available to international distributors.

QuestSuite™: How do I get updates?

The fastest way you can get the latest update is by visiting our website at: www.quest-technologies.com. The QuestSuite update can be found on the website under the 'Support' section, otherwise email us at quest.mail@mmm.com, or contact us directly.

QuestSuite™: How do I know which serial communication port to use?

USUALLY people use com port #1. This is the best first try. If after setting up the port you get an error message, try com port #2. If your system has a com port #3 or #4, these should only be used as a last resort. The reason for this is somewhat technical, but for those interested here it is: Com port #1 and com port #3 share something called an interrupt. When data comes into the PC on a serial port, this interrupt is activated. It tells the computer to interrupt what it's doing and go and get the data located at either com port 1 or com port 3. So if you are already using com port 1 for a device other than QuestSuite, it may be occupying or conflicting with sharing the interrupt. Then when your instrument needs to use this interrupt to tell the computer that it has data to send, the interrupt service routine that gets data is busy with com port 1 and consequently misses the data coming in on com port 3. This same phenomenon occurs on com ports 2 and 4.

QuestSuite™: How do I paste a graph into a document?

To paste a graph or table or just about anything into a document first copy it to the clipboard. To do this, from the MAIN menu in QuestSuite, select 'Edit->Copy'. Then paste it into your target document. Open the document using the application you wish to use (spreadsheet, word processor, etc) and then from within that application do an 'Edit-Paste'. Or, usually holding the 'Shift\ key and pressing the 'Insert' key will have the same effect.

QuestSuite™: I am using Windows 98. The documentation with QuestSuite Professional (QSP) says it supports Windows 98, but I am getting errors that do not occur when I install QSP on later operating systems. Why?

QSP uses technology released by Microsoft after Windows 98 was initially released. Microsoft incorporated this later technology by issuing updates from their web site. Make sure that your version of Windows 98 is the very latest release. Existing Windows 98 users can download the latest version of the operating system from the Microsoft web site free of charge.

QuestSuite™: I exported a report in Excel format from QuestSuite Professional. Why am I unable to perform mathematical functions on some columns of data when I then open the exported file using Excel?

QuestSuite Professional uses a reporting tool called Crystal Reports. This reporting tool also handles the data exporting routine. An apparent bug in the Crystal Reports application is causing this problem. The bug will be corrected in QuestSuite Professional when a fix is released by Crystal Reports. In the meantime, it is recommended that users that want to work with QuestSuite Professional data in Excel export the data in the "Data Interchange Format (DIF)" instead. This is one of the many data export formats available from QuestSuite Professional. Files exported in the DIF format do not exhibit this problem. Excel will open DIF files directly and does not require any sort of import wizard.

QuestSuite™: I go to open a file, even a sample file, and I get a general protection fault. Sometimes this occurs whenever I click on different tabs in a dialog box. What is wrong here?

QuestSuite, like many other software programs, uses libraries of functions to perform some operations. These libraries are stored in separate files called 'DLL' files or 'VBX' files. When programs are started, they load these accompanying files. Many times these libraries are purchased products. For example, the graphing functions in QuestSuite use a graph from a product called 'Chart2fx'. They supply a library of functions that reside in a file called 'Chart2fx.Vbx', which we ship with QuestSuite. Problems may arise when a user has a different, separate program on their computer that also uses or shares the same file. The potential problem is that their version of the library file may not be the latest version. Since only one version of this file can be loaded into memory, if the older version is loaded when QuestSuite runs, then QuestSuite may (and usually does) crash. To fix this problem, you must be sure that only one version of these common library files exists on your system. The following files are: File Name Usually Resides Size Version Date Chart2fx.vbx C:\\Windows\\System 311,872 3.0.26.0 7/1/96 Widgets.dll C:\\Qsuite 203,216 03.02.0000 7/13/95 Widgevb.vbx C:\\Windows 97,696 03.02.0000 7/15/95 To verify this, in Win95 right-click on the 'Start' button. Select "Find". In Win2000 select "Search".This brings up a dialog box for searching for files. In the 'Named' box, type in one of the files above. In the 'Look In' box, type in 'C:\\'.Then click 'Find Now'. Windows will find the files with the matching name. Note, you should always find one in the C:\\QSUITE directory. If you find any others, be sure to verify both the size and the version of the file. To do this, right-click on the file and select 'Properties' .DO NOT RELY ON THE DATES!!! Generally, if the file shows the EXACT number of bytes, it is the correct one. But it is always a good idea to verify the version, also. If you have any files that are not the same size or version as above, rename them, then copy the good file(s) from the C:\\QSUITE directory to the location the file should be in. Then re-boot the computer. This should take care of any crash problems you may be experiencing with QuestSuite.

QuestSuite™: I have a graph that won't print correctly. It has dots, but does not have lines connecting the dots. How do I fix this?

This is actually a printer-driver error, not a QuestSuite error. It has to do with how the driver resolves circles. You can either download a new printer driver from the printer maker's website, or you can remove the dots from the graph by clicking on the chart properties icon, then selecting the 'Series' tab. From here, de-select or 'uncheck' the 'Point markers' check-box.

QuestSuite™: I have a graph that won't print correctly. It has dots, but does not have lines connecting the dots. How do I fix this?

This is actually a printer-driver error, not a QuestSuite error. It has to do with how the driver resolves circles. You can either download a new printer driver from the printer maker's website, or you can remove the dots from the graph by clicking on the chart properties icon, then selecting the 'Series' tab. From here, de-select or 'uncheck' the 'Point markers' check-box.

QuestSuite™: I have just downloaded my instrument and realize that the time was not set correctly in the instrument. Can I adjust that in the file?

Unfortunately no. The time stamp information is considered part of the data and can not be changed. For future files always verify that the date and time are correct before monitoring. This can be done in QuestSuite under \Remote\ and then \date and time\. Make sure to press the \GET\ button to show your instruments setting on the computer screen.

QuestSuite™: I moved my legend off the screen. How do I get it back?

Click on the 'Tools' icon on the graph toolbar and select 'Series Legend'. The Legend will re-appear.

QuestSuite™: I'm trying to install QSP on my Windows system, and the installation fails with a message telling me that I need to install some Windows components or updates.

QSP relies on recent Windows technology, which can pose a problem when installing on some of the older Windows versions (like Windows 98 or NT). The solution is fairly simple, though - open Internet Explorer, and click on the 'Tools -> Windows Update' menu item. Follow the instructions for updating your version of Windows, and make sure that all "Critical Updates" are downloaded and installed. If you haven't updated in a long time, it may take a while, but this step is crucial in making sure that QSP will install and run correctly on your computer.

QuestSuite™: I've installed QuestSuite but am unable to download data from my instrument. Where do I start?

First,check your cabling. Make sure the part number on the cable matches the part number listed in the manual as the 'Serial computer cable'. Second, click on setup and pull down to 'PC serial port'. Set serial port and baud rate. The usual baud rate would be 9600. Finally, make sure the instrument is also set for 'Serial' and the same baud rate.

QuestSuite™: My report contains an Event that does not contain data. It was caused by the accidental pressing of the Run Key. Can I delete this event from the file?

Unfortunately no, The event is part of the dosimeter record. QuestSuite does not modify any data that has been transferred from the dosimeter

QuestSuite™: The last time I used QuestSuite I saved data from my Sound Level Meter, I want to look at that file today and can not find it. Did I forget to save it?

Go to File and then Open. If the file was a Sound Level Meter file, it should end with the extension .snd for sound. If the \list files of type\ is set for something other than .snd your file will not show. Reset this setting and you should see your file.

QuestSuite™: When I select my com port in Setup->Serial Port, QuestSuite immediately returns 'Check Cables and Connections'. I think they are correct. What is wrong here?

When QuestSuite immediately returns with this response, without trying to send data, it means that the serial port could not be initialized. Check to be sure no other programs are running that may want to use a serial port. If you use a device such as a palm pilot, the software for these devices tend to hold on to the communication port. Find the ICON and disconnect from the port. If problem persists, try a different port.

QuestSuite™: Whenever I download from my instrument, the process seems to go fine, but then I get 'Error Reading From File'?

In this situation, the file probably did download into QuestSuite successfully. Immediately after the download, QuestSuite parses (reads thru) the data in an attempt to arrange the data into a usable, viewable format for the user. It is here that the error is encountered. To troubleshoot, first PRINT the data directly FROM THE METER (not QuestSuite) to verify that data in the unit itself is reasonable. Either print to a printer using the parallel cable, if you have one, or print to your computer using a program such as 'Terminal' in Win 3.1 or 'HyperTerminal' in Win95. Next, check to be sure that the data is acceptable - that there is no dB values greater than 150dB, etc. If all the printed data looks correct and you can get a date and time from the unit, setup settings, etc. but still can not successfully download, please call your dealer or Quest Technologies.

QuestSuite™: Whenever I start up QuestSuite, I just get 'Authorization Failed' without a chance to put in a code. What happened here?

1.You have Windows NT or Windows 2000. If this is the case, you will need to install the NT drivers. Start up the installation CD and select 'NT drivers'. To do this installation you must be logged in as an Administrator. During the installation you will be ask to select a location for the Crypkey server. Make sure this location matches the location of QuestSuite. 2. If you have an old version of QuestSuite (V2.5 or earlier) and Win95 Rev B, then you will need a new CD. Win95 B has a feature that supports 32 bit FAT tables, which was not available at the time of QuestSuite V2.5. 3. You are attempting to install QuestSuite on a network. If this is the case and you are outside of the U.S., please call your dealer, otherwise please call Quest Technologies.

QuestSuite™: Why do reports in QuestSuite Professional default to "Summary" instead of "Full" reports?

Large, real world data files will create a slight delay while the data is queried and reported when in the "Full" report mode. This will occur each time the "Reports" tab is selected. We felt that this delay would be annoying to most users as a default setting, so the reports come up in "Summary" mode instead. "Full" reports are easily obtained, only when needed, by clicking on the Report setup icon at the top of the "Reports" tab page.

QuestSuite™: Will Questsuite run on Windows 2000?

Yes, but note that Windows 2000 is an evolution of Windows NT so it will be necessary to install the NT drivers.

QuestSuite™: Will QuestSuite run on Windows Millennium?

Yes, but you must have version 4.21 or newer. If you have an older version, contact Quest for a free update.

QuestSuite™: Will QuestSuite work on a network?

Yes, but it requires a special Network version. Please call Quest or your dealer for further setup requirements.

QuestSuite™: Will the infrared communications port of the NoisePro Series dosimeters interfere with other equipment or be affected by other equipment?

Unless communications are initiated in the NoisePro's COMM mode, the infrared port is inactive. The COMM mode may not be activated while the instrument is in the RUN mode collecting data. The infrared communications between the Quest NoisePro Series dosimeters and Quest's QuestSuite Professional Software has an error correcting format pack, which only allows communication by and between the NoisePro dosimeter and QSP. In addition, the NoisePro dosimeter and QuestSuite Professional must be set to a specific request mode in order for this communication to occur.
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