3M QUESTempo 34 User manual

QUESTempo 34 and QUESTempo 36 User Manual
©3M 2013. All Rights Reserved
3M Personal Safety Division
3M™QUESTemp° ™Heat Stress Monitors
Market Leader
From the
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iTable of Contents
Table of Contents
Introduction........................................................................................................................ 1
QUESTempº Models .......................................................................................................... 1
Getting Started................................................................................................................... 2
Up and Running overview ................................................................................................. 2
Keypad Operation.............................................................................................................. 3
I/O Enter key…………………………………………………………………………………..3
Up Arrow key………………………………………………………………………………….3
Down Arrow key………………………………………………………………………………3
Run Stop key………………………………………………………………………………….3
Escaping/moving back one screen…………………………………………………………3
Turning On/Off and Basic Operation................................................................................. 4
Placement for Monitoring/Testing.................................................................................... 4
Sensors .............................................................................................................................. 5
Natural Wet Bulb Thermometer......................................................................................... 5
Check Wick and Fill Natural Wet Bulb 5
Globe Thermometer .......................................................................................................... 5
Dry Bulb Thermometer...................................................................................................... 5
Relative Humidity Sensor.................................................................................................. 5
Tri-sensor Calculation and Remote Cable....................................................................... 6
Tri-sensor Weighted Average............................................................................................ 6
Wet Bulb Globe Temperature............................................................................................ 7
Stay Times/Rest Times (QTº36 only)................................................................................ 7
Heat Index/Humidex.......................................................................................................... 8
Air Flow ............................................................................................................................. 8
Thermal Comfort (QUESTempº 36 model only) ................................................................ 8
Operating QUESTempº 34 & 36 ........................................................................................ 9
View................................................................................................................................... 9
Setup................................................................................................................................. 9
Print..................................................................................................................................10
Reset................................................................................................................................10
Contents

Run...................................................................................................................................11
Displayed Items ................................................................................................................11
Stay Time .........................................................................................................................13
Data Logging.....................................................................................................................13
Printing..............................................................................................................................14
Serial................................................................................................................................14
Parallel .............................................................................................................................14
Air Flow functionality.......................................................................................................16
Operating sequence.........................................................................................................17
Data Logging Air Flow......................................................................................................17
Batteries for Air Probe......................................................................................................17
Operational Check............................................................................................................17
Power options...................................................................................................................18
9-Volt Alkaline Battery Replacement................................................................................18
Approved 9-Volt Batteries.................................................................................................18
NiMH Battery Pack...........................................................................................................19
Appendix A: Specifications ............................................................................................20
Product markings and special conditions......................................................................22
Appendix B: Heat Exposure Tables...............................................................................23
ACGIH..............................................................................................................................23
ACGIH Clothing Corrections.............................................................................................24
ACGIH Clothing Corrections.............................................................................................24
United States Navy...........................................................................................................24
Electrical power research institute (EPRI)........................................................................26
Appendix C: Accessories ................................................................................................27
Air Probe Accessories......................................................................................................27
Appendix D: Detection Management Software DMS ....................................................28
DMS Quick overview........................................................................................................28
Downloading your sessions in DMS.................................................................................28
Viewing/Analyzing and Quick Reporting in DMS..............................................................30
Reporting and Printing......................................................................................................31

Customer service..............................................................................................................32
Contacting 3M Instrumentation.........................................................................................32
International customers....................................................................................................32
Calibration.........................................................................................................................32
Warranty............................................................................................................................32
List of Figures and Tables
Figure 1-1: QUESTempº 36 model....................................................................................................... 1
Figure 1-2: Keypad explained.............................................................................................................. 3
Figure 1-3: Main menu of the QUESTempº 34 & 36.............................................................................. 4
Figure 1-4: Filling wet bulb reservoir.................................................................................................... 5
Figure 1-5: Ports identified.................................................................................................................. 6
Figure 1-6: Viewing measured data ..................................................................................................... 9
Figure 1-7: Setup selected in main menu ............................................................................................. 9
Figure 1-8: Run mode indicator..........................................................................................................11
Figure 1-9: Wet and Dry screen..........................................................................................................11
Figure 1-10:Globe screen....................................................................................................................12
Figure 1-11:WBGTi & WBGTo screen...................................................................................................12
Figure 1-12: RH and H.I/HU screen......................................................................................................12
Figure 1-13: Air Flow screen................................................................................................................12
Figure 1-14: Stay times (ACGIH)..........................................................................................................12
Figure 1-15: Time & Date screen .........................................................................................................12
Figure 1-16: Battery & Memory screen.................................................................................................12
Figure 1-17: Navy Stay time screen......................................................................................................13
Figure 1-18: EPRI Stay time screen......................................................................................................13
Table 1-1: Example of a Memory table..............................................................................................13
Figure 1-19: Sample printout (page 1).................................................................................................14
Figure 1-20: Sample printout (page 2) ................................................................................................15
Figure 1-21: Air flow configuration......................................................................................................16
Figure 1-22: 9-volt battery..................................................................................................................18
Figure 1-23: NiMH rechargeable battery..............................................................................................19
Figure 1-24: Communicating to DMS...................................................................................................28
Figure 1-25: Downloading with the QT⁰34/36......................................................................................29
Figure 1-26: Data Finder page (Analyze/Quick Report options) .............................................................30
Figure 1-27: Data layout page (displays your data in charts and graphs)...............................................30
Figure 1-28: Reporting and printing ....................................................................................................31

1Introduction
Up and Running overview
Introduction
The QUESTempº 34/36 models are portable heat stress monitors that are designed to be
rugged, easy-to use instruments to quickly and accurately assess the potential for
individual heat stress based on environmental conditions.
QUESTempº Models
The QUESTempº 34 and QUESTempº 36 models measure and calculate the dry bulb
temperature, wet bulb temperature, globe temperature, WBGT indoor index, WBGT
outdoor index, relative humidity, and Heat Index or Humidex. These models support RS-
232 communications and works with the optional software analysis program, 3MTM
Detection Management Software (DMS).
With the QUESTempº 36, you have the capability to display stay times in order to
manage work/rest regimens. Guidance is based on the screening criteria for heat stress
as defined in the ACGIH TLV Handbook, U.S. Navy PHEL charts, and EPRI Action
Limits. (Please see Appendix B for detailed chart information.)
An additional feature with the QUESTempº 36 is an optional detachable air-probe for
measuring air velocity (wind speed) to determine appropriate levels of indoor thermal
comfort monitoring.
Figure 1-1: QUESTempº 36 model
QTº36 model with (optional)
air-probe attachment
Introduction

2Getting Started
Up and Running overview
Getting Started
Up and Running overview
2. Place the QUESTempº 34 & 36 in the work area in a safe location
approximately 3.5 feet off the ground.
3. Power On the QUESTempº34 & 36 and check the battery.
•If the battery voltage displayed during the power-on sequence is less than or
equal to 6.4 volts, replace or recharge the batteries.
5. In the main menu, View will be selected (an indicator arrow denotes the
selected menu). Press the I/O Enter key to select.
7. Use the Up/Down Arrow keys to set the display to the desired items.
Getting started
1. Make sure the wet bulb wick is clean. Fill reservoir with distilled water.
• See “check wick and fill natural wet bulb”, pg 5.
4. Be aware that the sensors require 10 minutes to stabilize to a new
environment.
6. Press the Run/Stop key to begin storing data.

Getting Started
Keypad Operation
3
Keypad Operation
The unit operates using a keypad with 4 keys. The I/O Enter key responds when
the key is released while all other keys respond when the key is pressed.
I/O Enter key
The unit turns on with a single key press. The unit turns off by holding the key
down while a countdown of 3-2-1 occurs in the lower right corner of the display.
This key is also used to select a mode (such as Setup or View) or enter setup
changes.
Pressing and releasing the key while viewing temperatures causes the display to
view the next available sensor bar (indicated in the upper right corner of the
display).
Up Arrow key
Changes items appearing in the display. Scrolls up.
Down Arrow key
Changes items appearing in the display. Scrolls down.
Run Stop key
From the menu or view modes, pressing this key starts or stops the run mode.
Pressing this key will exit the setup, print or reset modes.
Escaping/moving back one screen
If you are in the setup, print, reset, or calibration screens, you can press Run/Stop
key to escape or move back one screen.
 NOTE: the QUESTemp º 34 & 36 models have the same keypad. Figure 1-2 is an
example of the QUESTempº 36 model with the optional air-probe attachment.
Figure 1-2: Keypad explained
I/O Enter key
Run/Stop key
Up arrow key
Down arrow key

Placement for Monitoring/Testing
Turning On/Off and Basic Operation
4
Turning On/Off and Basic Operation
To quickly get you started with the QUESTempº 34 & 36 model, the following section
explains how to turn on the instrument, run, and stop your session.
1. Press the I/O Enter key to turn on. Following the model and revision information
displayed on the screen, the main menu will appear.
Figure 1-3: Main menu of the QUESTempº 34 & 36
2. Press the I/O Enter key (when view is selected) to access the measurement
screens.
•The Wet and Dry measurements screen will display. (See Figure 1-6, page 9 for
screen example.)
3. To view different measurements, press the Up or Down arrow key to toggle through
the views.
NOTE: There are 5-user selectable languages.If you see the fields such as
Wet, Dry, WBGTi, and WBGTo this indicates the measurements are displaying
in English.
•To display an alternative language, select Setup from the main menu. Press
the Down arrow repeatedly until “English” (or the appropriate language)
appears. Then repeatedly press the I/O enter key to toggle through the
languages. Once selected, all menus and measurement screens will change to
the selected language. To return to the main menu, press the Run/Stop key.
4. To return to the main menu, press and hold the I/O Enter key (3, 2, 1 countdown
will appear) and the main menu will display.
•To select an option on the main menu, press the up or down arrow until an
arrow appears directly in front of the appropriate menu selection and then press
I/O enter key.
5. To power off, press and hold the I/O enter key from the main menu.
Placement for Monitoring/Testing
The QUESTempº 34 & 36 model should be placed at a height of 3.5 feet (1.1m) for
standing individuals or 2 feet (.6m) for seated individuals. Tripod mounting is
recommended to get the unit away from anything that might block radiant heat or air flow.
A 1/4"x 20 threaded bushing on the bottom of the instrument allows mounting to a standard
photographic tripod. Do not stand close to the unit during sampling.
NOTE: Before measuring, allow 10 mins. for the sensors readings to stabilize.
Indicator arrow
Indicates the selected menu
option. Then press I/O enter to
select or press up/down arrows
VIEW PRINT
SETUP RESET

Sensors
Natural Wet Bulb Thermometer
5
Sensors
Natural Wet Bulb Thermometer
The natural wet bulb thermometer gives an indication of the effects of humidity on an individual.
Relative humidity and wind speed are taken into account by measuring the amount of
evaporative cooling taking place at a thermometer covered with a moistened wick.
Check Wick and Fill Natural Wet Bulb
The QUESTemp uses a cotton wick immersed into a reservoir containing distilled water.
Ordinary tap water should not be used, as the contaminants that are left behind after
evaporation will shorten the life of the wick and cause high readings. If the wick is
discolored it should be replaced. To replace the wick, slide the old wick off the top of the
sensor. Place a new wick over the sensor, making sure that the bottom of the wick is down
in the reservoir.
Figure 1-4: Filling wet bulb reservoir
Globe Thermometer
The globe thermometer (left position) gives an indication of the radiant heat exposure on an
individual due to either direct sunlight or hot objects in the environment. This is
accomplished by placing a temperature sensor inside a blackened copper sphere and
measuring the temperature rise. The WBGT index is based on the response of a 6 inch
diameter globe. The QUESTemp uses a 2 inch diameter globe for a faster response time.
The temperature of the 2 inch globe is correlated to match that of a 6 inch globe.
Dry Bulb Thermometer
The dry bulb thermometer (right position) measures the ambient air temperature. This
measurement is used in the outdoor WBGT calculation when a high solar radiant heat load
may be present. The series of white plates surrounding the sensor shield it from radiant
heat.
Relative Humidity Sensor
A relative humidity sensor is located in a compartment inside of the sensor bar housing.
Slots in the housing allow air to circulate around the sensor.
Wick
Reservoir cover
Reservoir
Filling wet bulb reservoir
1. Remove reservoir cover and fill with distilled or
de-ionized water.
2. Replace reservoir cover.
A. Globe thermometer
B. Natural wet bulb thermometer
C. Dry bulb thermometer
A
B
C
Sensors

Tri-sensor Calculation and Remote Cable
Tri-sensor Weighted Average
6
Tri-sensor Calculation and Remote Cable
The top sensor bar (sensor 1) may be removed from the instrument and used
through a remote cable. Shelter the instrument and remote the sensor bar if the
measured environment is expecting heavy rain or if temperatures are above 60°C.
The sensor 2 and sensor 3 jacks on the side of the instrument allow simultaneous
monitoring of up to three sensor arrays using connecting cables.
Cable lengths of up to two hundred feet (61 meters) may be used without a decrease
in accuracy provided the environment does not contain strong electromagnetic fields.
The data from these arrays may be viewed separately or combined into a weighted
average WBGT reading per ISO 7243. Change the displayed sensor bar by
pressing and releasing the enter key. The upper right corner of the display shows
the current sensor bar. 1 refers to the top sensor bar, 2 and 3 are labeled on the
side of the unit, W indicates the weighted average which only appears if a WBGT is
displayed and all three of the sensor bars are attached.
Tri-sensor Weighted Average
Per the recommendations outlined in ISO 7243: 1989, when the temperature in the
space surrounding a worker is not uniform, it is necessary to determine the WBGT
index at three heights corresponding to the worker's ankles, abdomen and head and
perform a weighted average on those values. It is computed using the formula:
WBGTw = (WBGT head + (2 x WBGT abdomen) + WBGT ankles)/4
The QUESTemp°36 always assigns the top sensor bar the double weighting. This
calculation is shown if aWBGT display has been selected and if 3 sensor sets are
connected.
Figure 1-5: Ports identified
Remote
Removable sensor bar
RS-232
Tri-sensor calc.
Sensor
Bars 2 &3