3M 44, 46 User Manual

3M Personal Safety Division

3M™ QUESTemp°™Heat Stress Monitors

Robust Construction

From the

From the

Market Leader

QUESTempo 44 and QUESTempo 46 User Manual

©3M 2013. All Rights Reserved.

i Contents

Contents

Contents

Introduction .......................................................................................................................................................... 1

QUESTempº Model s ............................................................................................................................................ 1

Getting Started ..................................................................................................................................................... 2

Up and Running overview ................................................................................................................................... 2

Keypad Operation ............................................................................................................................................... 2

I/O Enter key………………………………………………………………………………………………………...3
Up Arrow key………………………………………………………………………………………………………..3
Down Arrow key…………………………………………………………………………………………………….3
Run Stop key………………………………………………………………………………………………………..3

Escaping or moving back one screen…………………………………………………………………………… 3

Turning on/off and basic operation ..................................................................................................................... 4

Placing the QUESTempº 44/46 on the job site ................................................................................................... 4

Sensors................................................................................................................................................................. 5

About the sensor bar........................................................................................................................................... 5

Globe Thermometer ............................................................................................................................................ 5

Waterless Wetbulb Sensor and Relative Humidity Sensor ................................................................................. 5

Dry Bulb Thermometer........................................................................................................................................ 5

Remote, Sensors 2 and 3 .................................................................................................................................... 6

Tri-sensor weighted average .............................................................................................................................. 6

Measurements ..................................................................................................................................................... 7

Waterless Wetbulb .............................................................................................................................................. 7

Computing Waterless wetbulb and wind speed 7

WetBulb Globe Temperature .............................................................................................................................. 8

Stay Times/Rest Times (QTº46 only) ................................................................................................................. 8

Heat Index/Humidex ........................................................................................................................................... 8

Airflow ................................................................................................................................................................. 8

Thermal Comfort ................................................................................................................................................. 9

Operating QUESTempº 44/46 ........................................................................................................................... 10

View .................................................................................................................................................................. 10

Setup ................................................................................................................................................................. 10

Setup for Waterless Wetbulb measurement (airflow rate) ................................................................................ 11

Contents

ii

Print ................................................................................................................................................................... 12

Reset ................................................................................................................................................................. 12

Run ................................................................................................................................................................... 12

Displayed Items ................................................................................................................................................. 13

Stay Time .......................................................................................................................................................... 14

Data Logging ...................................................................................................................................................... 15

Electronic sensor check ................................................................................................................................... 16

Performing an electronic sensor check ............................................................................................................. 16

Sensor Alignment .............................................................................................................................................. 17

RH Sensor Alignment ....................................................................................................................................... 17

Printing ............................................................................................................................................................... 19

Serial ................................................................................................................................................................. 19

Parallel .............................................................................................................................................................. 20

Airflow functionality .......................................................................................................................................... 21

Operating sequence.......................................................................................................................................... 22

Data Logging Airflow ......................................................................................................................................... 22

Batteries for Air Probe....................................................................................................................................... 22

Operational Check ............................................................................................................................................. 22

Power options .................................................................................................................................................... 23

9-Volt Alkaline Battery Replacement ................................................................................................................ 23

Approved 9-Volt Batteries ................................................................................................................................. 23

NiMH Battery Pack............................................................................................................................................ 24

Appendix A: Specifications ............................................................................................................................. 25

Appendix B: Heat Exposure Tables ................................................................................................................ 27

ACGIH ............................................................................................................................................................... 27

ACGIH Clothing Corrections ............................................................................................................................. 28

United States Navy ........................................................................................................................................... 28

Flag Conditions for U.S. Navy/Marine Corp. Ashore ........................................................................................ 30

Electrical power research institute (EPRI) ........................................................................................................ 30

Appendix C: Accessories ................................................................................................................................. 31

Contents

iii

Air Probe Accessories....................................................................................................................................... 31

Appendix D: 3M
QUESTemp

Communication setup ....................................................................................................................................... 32

Downloading data with the QT⁰44/46 ............................................................................................................... 34

Viewing Data in DMS ........................................................................................................................................ 35

Selecting a session/study ................................................................................................................................. 35

Charts and Graphs in Panel layout view (PLV) page ....................................................................................... 35

Reports and Printing ......................................................................................................................................... 38

3M Service .......................................................................................................................................................... 39

Contacting 3M Technologies ............................................................................................................................ 39

Calibration……………………………………………………………………………………………………………….39

Warranty ............................................................................................................................................................. 39

TM

Detection Management Software DMS ........................................................................... 32

o

44/46 ............................................................................................................................................. 32

Contents

iv

List of Figures

Figure 1-1: QUESTempº 44/46 in a thermal environment ----------------------------------------------------------- 1
Figure 1-2: Keypad explained --------------------------------------------------------------------------------------------- 3
Figure 1-3: Main menu of the QTº44/46 ------------------------------------------------------------------------------- 4
Figure 1-4: About sensor bar and serial number --------------------------------------------------------------------- 5
Figure 1-5: Sensors identified -------------------------------------------------------------------------------------------- 5
Figure 1-6: Viewing measured data ------------------------------------------------------------------------------------ 10
Figure 1-7 Setting the airflow for Waterless Wetbulb sensor ------------------------------------------------------ 11
Figure 1-8 Run mode indicator ----------------------------------------------------------------------------------------- 12
Figure 1-9 Wet and Dry screen ------------------------------------------------------------------------------------------ 13
Figure 1-10: Globe screen ------------------------------------------------------------------------------------------------ 13
Figure 1-11: WBGTi & WBGTo screen ---------------------------------------------------------------------------------- 13
Figure 1-12: RH and H.I/HU screen ----------------------------------------------------------------------------------- 13
Figure 1-13: Air Flow screen on QTº46 -------------------------------------------------------------------------------- 13
Figure 1-14: Stay times (ACGIH) --------------------------------------------------------------------------------------- 14
Figure 1-15: Time & Date screen -------------------------------------------------------------------------------------- 14
Figure 1-16: Battery & Memory screen -------------------------------------------------------------------------------- 14
Figure 1-17: Navy Stay time screen ----------------------------------------------------------------------------------- 14
Figure 1-18: Flag Conditions for U.S. Navy/Marine Corp. Ashore ------------------------------------------------- 15
Figure 1-19: EPRI Stay time screen ------------------------------------------------------------------------------------ 15
Figure 1-20: Main menu with view selected (A) & measurement screen (B) ----------------------------------- 17
Figure 1-21: Alignment screen ------------------------------------------------------------------------------------------ 17
Figure 1-22: Sunshield & placement of finger cot prior to RH verification -------------------------------------- 17
Figure 1-23: RH alignment with Low % example -------------------------------------------------------------------- 18
Figure 1-24: RH alignment with High% screen ----------------------------------------------------------------------- 18
Figure 1-25: Sample printout (page 1) -------------------------------------------------------------------------------- 19
Figure 1-26: Sample printout (page 2) -------------------------------------------------------------------------------- 20
Figure 1-27: Airflow configuration ------------------------------------------------------------------------------------- 21
Figure 1-28: 9-volt batte ry ---------------------------------------------------------------------------------------------- 23
Figure 1-29: NiMH rechargeable battery ------------------------------------------------------------------------------ 24
Figure 1-30: Communicating with the QT⁰ 44/46 and DMS-------------------------------------------------------- 32
Figure 1-31: QT⁰44/46 downloading data ----------------------------------------------------------------------------- 33
Figure 1-32: Downloading QT⁰44/46 files ---------------------------------------------------------------------------- 34
Figure 1-33: Selecting a session ---------------------------------------------------------------------------------------- 35
Figure 1-34: QT⁰44/46 data in panel layout view ------------------------------------------------------------------- 36
Figure 1-35: Rearranging panels and saving layout ----------------------------------------------------------------- 37
Figure 1-36: Sample QT⁰46 report ------------------------------------------------------------------------------------- 38

List of Tables

Table 1-1: Example of a memory table ................................................................................................ 15

1 Introduction

Introduction

Up and Running overview

Introduction

The new heat stress instruments, the QUESTempº 44 and QUESTempº 46, offer
traditional heat stress monitoring without the aggravation of maintaining a wet bulb.
Through collaboration with Professor Dr. Thomas Bernard, from the College of Public
Health at the University of South Florida, mathematical models were implemented to
create a
temperature, globe temperature, relative humidity, and air flow. The Waterless Wet
Bulb is used to calculate the Wet Bulb Globe Temperature (WBGT) which is a widely­used method to monitor environmental conditions related to heat stress.

Waterless Wet Bulb calculation

through a combination of dry bulb

Figure 1-1: QUESTempº 44/46 in a thermal environment

QUESTempº Models

QUESTempº 44 and QUESTempº 46 both measure and calculate the dry bulb, wet bulb,
globe, WBGT indoors, WBGT outdoors, relative humidity, and Heat Index or Humidex.

With the QUESTempº 46, you have the capability to measure stay times in order to
manage work/rest regimens. Guidance is based on the screening criteria for heat stress
as defined in the ACHIH TLV Handbook, U.S. Navy PHEL charts, U.S. Navy/Marine Corp.
Ashore Flag system, and EPRI Action Limits.

An additional feature with the QUESTempº 46 is an optional detachable probe for
measuring air velocity to determine appropriate levels of indoor thermal comfort
monitoring.

2 Getting Started

1. Place the QUESTempº 44/46 in the work area in a safe location

2. Turn the unit On. If the battery voltage displayed during the power-on

3. Be aware that the sensors require 10 minutes to stabilize to a new

4. In the main menu, View will be selected (an indicator arrow denotes the

5. Press the Run/Stop key to begin datalogging. Use the arrow keys to set

Getting Started

Up and Running overview

Getting Started

Up and Running overview

Keypad Operation

approximately 3.5 feet off the ground.

sequence is less than or equal to 6.4 volts, replace or recharge the
batteries.

environment.

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.

selected menu). Press the I/O Enter key to select.

the display to the desired items.

3 Getting Started

I/O Enter key

Up arrow key

Keypad Operation

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 item s 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 or 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.

Run/Stop key

Down arrow key

Figure 1-2: Keypad explained

Getting Started

4

Indicator arrow

 VIEW PRINT

Turning on/off and basic operation

Turning on/off and basic operation

To quickly get you started with the QUESTempº 44/46, 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. Proceeding the model and revision
information displayed on the screen, the main menu will appear.

SETUP RESET

Figure 1-3: Main menu of the QTº44/46

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 10

for an 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 included in the QUESTempº
44/46. 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
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.

a. 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.

Placing the QUESTempº 44/46 on the job site

The QUESTempº 44/46 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 airflow. A 1/4"x 20
threaded bushing on t he b ottom of the ins t rume nt a llo ws mou nting to a stand ard
photographic tripod. Do not stand close to the unit during sampling.

Before datalogging, allow ten minutes for the sensors readings to stabilize.

Indicates the selected menu
option. Then press I/O enter to
select or press up/down arrows
to select another option

I/O enter key to toggle

Sensors

5

A. Globe thermometer

Sensors

B

Serial number and sensor bar number label

About the sensor bar

Sensors

About the sensor bar

The sensor bar, on the QTº 44/46, is calibrated to its specific i nstrument a nd is n ot
interchangeable with other QTº 44/46. The instrument has a sensor bar label which
includes the serial number of the instrument and a sensor bar number. (This is
indicated in the diagram below.)

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.

Waterless Wetbulb Sensor and Relative Humidity Sensor

The relative humidity sensor (middle position) is used to calculate the Waterless
Wetbulb from a combination of dry bulb temperature, humidity and wind speed
measurements. The Waterless Wetbulb is used to calculate an estimated WBGT
value. (Please see “Waterless Wetbulb” on page 7 for more details.)

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.

Figure 1-4: About sensor bar and serial number

B. Relative humidity sensor
C. Dry bulb thermometer

Figure 1-5: Sensors identified

Remote, Sensors 2 and 3

6

Remote

Sensors

Tri-sensor weighted average

Remote, Sensors 2 and 3

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 t o three se nso r arra ys using conne cti ng cab le s .

Cable lengths of up to two hundred feet (61 meters) may be used without a decrease
in accuracy provid ed the e nviro nme nt does not contain
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° 44/46 always assigns the top sensor bar the double weighting. This
calculation is shown if a WBGT display has been selected and if 3 sensor sets are
connected.

strong electromagnetic fields.

Measurements

7

Measurements

Waterless Wetbulb

Measurements

The QUESTemp° 44/46 data l ogg ing area heat stres s monitor directly senses three
parameters: dry bulb temperature (DB), glob e tempe rature (G), and rel ative hu midity
(RH).

It computes the wet bulb (WB), the Wet Bulb Globe Temperature (WBGT), stay times
for four possible indices, and the Heat Index (HI) or the Canadian Humidex. Using
inputs on the side of the instr u ment , two a dd itio nal se nsor ar ra ys can moni tor up to
three locations simultaneously.

On the QUESTempº 46 m odel, you ca n measure airflow, in meters per second, by
plugging an optio nal hot wi re a ne momete r se nsor i nt o a si de jack on t he unit .

Determine thermal comfort indices, Predicted Mean Vote (PMV) and Predicted Percent
Dissatisfied (PPD), using Detection Management Software (DMS).

Waterless Wetbulb

The Waterless Wetbulb is an estimat ed m eas urement using the % of Relative
Humidity, Dry Bulb Temperature, and Globe Bulb Temperature to determin e
the psychrometric wetbulb. The psychrometric wetbulb value is adjusted
based on airflow to provide t h e wa terless wetbulb estimate.

Computing Waterless wetbulb and wind speed

When computing the waterless wetbulb, you can increase accuracy by setting
the airflow to the current environments wind speed. The recommended
airflow setting for an indoor environment is 0 .3 m/s un less o therwise
determined with an air-probe measurement ( available only on the QTº46
model). The recommended setting for outdoor environment is 2.0 m/s.

NOTE: To convert wind sp e ed f ro m m il es /h ou r to m eters/sec use the
following formula:

• Miles/hour * .447 = meters/sec. (Example: If the av erage
wind speed is 5mph, then enter 5*.447 = 2.2 meters/sec.)

If you are using the QUESTempº46 with the Air Probe attached, you would
not set the airflow setting. (It will au tomatical ly calcula te wi th the curr ent
reading.)

Please see “Se tu p fo r Waterless Wetbulb measu rem en t” on page 11 for
details on setting the Airflow.

Measurements

8

WetBulb Globe Temperature

WetBulb Globe Temperature

The WBGT is a weighted average of the three temperature sensors using the following
formulas:

• WBGT (indoor) = 0.7WB + 0.3G (denoted as “WBGTi” on the display)

• WBGT (outdoor) = 0.7WB + 0.2G + 0 .1DB (denoted as “WBGTo” on the display)

The resulting WBGT values can then be compared to indices of work-rest regimens
(stay times) based upon work loads.

Stay Times/Rest Times (QTº46 only)

Stay times represent how long a worker should be able to safely work under heat
stress conditions. Select one of four indices for displaying and printing from the
unit: ACGIH Stay Times, NAVY PHEL’s, U.S. Navy/Marine Corp. Ashore Flag
Conditions, or EPRI Action Limits. Refer to Appendix B for more information on the
indices.

Heat Index/Humidex

The Heat Index is determined using the dry bulb temperature and relative humidity.
Based upon charts available from the U.S. National Weather Service, Heat Index
represents how an average person feels relative to climate conditions. For a given
temperature, the higher the h um idi ty, the hig he r the he at i nde x.

The Heat Index is defined over a temperature range of 70°F - 120°F (21°C - 49°C) and
a relative humidity range of 30% - 99%. Outside of this range, the instrument will
show dashes in the display for the Heat Index.

The Humidex, used primarily in Canada, works on the same concept as the Heat
Index. The values are slightly different. The Humidex is defined over a temperature
range of 70°F - 109°F (21°C - 43°C) and a relative humidity range of 20% - 99%.
Outside of this range, the instrument will show dashes in the display for the Humidex.

Airflow

The QUESTemp° 46 measures airflow if Quest’s Air Probe accessory is used. The
Air Probe uses an omni-directional anemometer sensor that measures air flow
between 0 and 20 meters per second in 0.1m/s increments. Please see “Airflow
Functionality”, page 21 for more details.

Measurements

9

Thermal Comfort

Thermal Comfort

Thermal comfort readings for indoor environments are a benefit of Detection
Management Software (DMS) and are not displayed or printed from the instrument
directly. Readings are derived from the dry bulb, relative humidity, mean radiant
temperature, airflow, and user entered parameters of clothing, metabolic rate and
external work.

Thermal comfort indices, Predicted Mean Vote (PMV) and Predicted Percent
Dissatisfied (PPD), help predict the thermal satisfaction level of a person with their
indoor environment . The PM V i s a rati ng sca le of +3 t o -3 where +3 is much to
warm, -3 is much too cool, and 0 is thermally neutral. The PPD reflects what percent
of people in a given location would be dissatisfied with their the rmal surroundings .

The formulas used by DMS to derive the PMV and PPD come from the international
standard ISO 7730 “Moderate thermal environments - Determi nati on of t he PMV and
PPD indices and sp ecifi ca tio n of t he co nditi ons for t herma l c omfort ”.

Operating QUESTempº 44/46

10

WET 65.5º F  1

View mode

data

Operating

View

Operating QUESTempº 44/46

Use the Up Arrow and Down Arrow keys to move the marker in the display in front
of the desired mode. Pressing the I/O Enter key will select the mode.

View

Displays the measured data but does not log it. If more than one set of sensors is
plugged into the unit, they can be displayed by pressing and releasing the I/O ENTER
key. The displayed sensor set is shown in the upper right corner.

DRY 74.0º F

Figure 1-6: Viewing measured data



NOTE: To return to the menu, hold down the I/O ENTER key while a 3, 2, 1
countdown is shown in the lower right corner of the display. Then the menu
screen will appear (see Figure 1-3, page 4 for an example).

Setup

Allows changing temperature units, language, time, date, logging rate, selecting
between Heat Index and Humidex, turning air flow on or off, and setting stay time
parameters.

 To Setup parameters do one of the following:

Indicates you are
viewing sensor one

1. From the main menu, select Setup by pressing the I/O Enter key.

2. Use the Arrow keys to select an item (listed below).

• Temperature: Celsius, Fahrenheit.

• Language: English, Spanish, French, Italian, German.

• Time: 24 hour clock only.

• Date: Day-month-year format.

• Log Rate: 1, 2, 5, 10, 15, 30, 60 minutes.

• Heat Index (United States), Humidex (Canada)

• Flow: On (QTº46 only), Off with fixed rate. (0.3 m/s is the recommended

value for indoor applicat i ons and 2.0 m/s for outdoor applications)

Operating QUESTempº 44/46

11

Flow Off

Airflow rate

position.

Setup for Waterless Wetbulb measurement (airflow rate)

• Index: none, ACGIH, Navy, Marine, EPRI and select eith er : WBGTi (indoor),

WBGTo (outdoor) for Index setting.

Index Setting Notes

• TLV and action limit only apply to the ACGIH Index. EPRI Navy, and Marine

will ignore this setting.

• Clothing Correction parameters are set from 0 - 9.9°C. This is a clothing
correction for the WBGT in degrees Celsius and is applied to the selected
WBGT when the work duration is calculated. (It will not affect the WBGT as
displayed by the unit.) This value should typically be set to 0.0 for the Navy.
(The field is noted as “Clo Corr”.)

3. Press the I/O Enter key to change a parameter. Time and date require using the
Up/Down Arrows and I/O Enter keys to modify each number.



NOTE: at any time, you can move back one level, by pressing the Run/Stop

key.

4. Exit Setup by pressing the Run/Stop key.

Setup for Waterless Wetbulb measurement (airflow rate)

For the Waterless Wetbulb sensor calculation, an airflow rate (or wind
speed) of 0.3 m/s is recommended and is the default setting of the
instrument.

NOTE: only QTº46 supports the optional air-probe accessory.

If an air probe is not selected, the average wind speed of the environment
should be configured. This value is then entered into the Flow screen
under the setup menu.

 Flow 00.3 m/s

Figure 1-7 Setting the airflow for Waterless Wetbulb sensor

 To Setup Airflow rate

1. In the setup menu, select Flow by pressing the Up/Down Arrow key to select.

2. Press I/O Enter key and press Up/Down Arrow key to change the values. The
I/O Enter key is pressed to toggle through the changeable fields and to return
to the first column.

The selected value will be underlined.
Press the Up/Down arrow key to change.
Press I/O Enter key to select a value

Operating QUESTempº 44/46

12

WBGTi 66.7º F  1

Run indicator

Print

Print

Allows printing to a parallel or serial printer or to a computer. The QuesTempº 44/46
will recognize the cable plugged in and configure itself for serial or parallel. If no cable
is plugged in, it will default to serial. Press I/O Enter key to begin printing. Press
Run/Stop key to return to the menu.

 NOTE: if you wish to stop the printing, press I/O enter key until you return to the
main menu. When the printer has stopped printing, remove the cable from the printer
to the instrument.

Reset

Resetting enables you to clear the logged data from memory. Press the I/O Enter
key to enter the Reset mode. Clear the memory by holding down the I/O Enter key

while the display counts down from three.

Run

The run mode begins a session in memory and logs the data.

1. Begin a session by pres si n g th e Run/Stop key from the view mode (or
measurement view) . An asterisk in the lower right corner indicates the run mode.

 To toggle through the views, press the up or down arrow.

Figure 1-8 Run mode indicator

2. End the session by pressing the Run/Stop key again. (The session will stop
recording when the asterisk is no longer displayed. )



NOTE: If the logging memory is full or if there are no sensors plugged into the unit,

attempting to enter the Run mode will result in an error message. If the memory
capacity is exceeded, the asterisk in the lower right corner of the display will turn
into an “F” and the memory remaining screen will show “0.0”.

WBGTo 68.6º F 

Displayed Items

13

WET 80.5º F

1

GLOBE 92.4.º F  1



WBGT

84.1 º F  1

WBGTo 107.5 º F 

RH 66.2 %  1
H.I. 84.3º F 

FLOW 0.3m/s  1

Displayed

Run

Displayed Items

For the QUESTemp° 44/46, the number in the upper right corner indicates which sensor
bar’s data is displayed.

The following measurements can be accessed on the display:

Items

• “1”indicates the sensor bar placed on (or attached to) the top of the

instrument. Sensors 2 and 3 are labeled on the side of the unit as “Sensor 2”,
and “Sensor 3”.

• “W” indicates the weighted average which only appears if a WBGT is

displayed and all three sensor bars are attached. An asterisk in the lower right
corner indicates that the unit is in the run mode and is logging data.

Screen 1: WET (Wet bulb)
DRY (Dry bulb)

Figure 1-9 Wet and Dry screen

Screen 2: GLOBE

Figure 1-10: Globe screen

Screen 3: WBGTi (Indoors)
WBGTo (Outdoors)

Figure 1-11: WBGTi & WBGTo screen

Screen 4: RH (Relative Humidity)
H.I. or HU
(Heat Index or Humidex)

Figure 1-12: RH and H.I/HU screen

Screen 5: Air Flow (QTº46 only)
(If turned ON via setup)

Figure 1-13: Air Flow screen on QTº46



DRY 92.2º F 

i

Displayed Items

14

L M H VH  1

60 45 30 15 

TIME 11:04:13  1

BAT 11:04:13  1

PHEL_5 3:10  1

Stay Time

Stay Time

Screen 6: Stay times (QTº46 only)

Figure 1-14: Stay times (ACGIH)

Screen 7: Time (24 hour format)
Date (day, month, year)

Screen 8: BAT (Battery voltage)
MEM (Logging memory
available in days)

 NOTE:

• The Heat Index or Humidex is outside of its allowable range

• The temperature is outside of its allowable range

• A temperature sensor has failed

• Stay times temperatures are outside of the their defined range

The screen(s) displaying stay time data appear different for each of the possible
indices.

If ACGIH is selected, the recommended working minutes per hour are shown for
each of the workload categories Light (L), Moderate (M), Heavy (H), and V e r y
Heavy (VH). (Please see Figure 1-13 above.)

If the Navy PHELS are selected, the recommended working hours are shown
based on a maximum of eight hours. Three screens are used to display the PHELs
two at time.



NOTE: “8:01” following one of the PHELs indicates greater than eight hours.

Figure 1-15: Time & Date screen

Figure 1-16: Battery & Memory screen

A series of dashes appear in the display if one of the following occur:

DATE 26-JUN-08 

MEM 10.4dy 

PHEL_6 2:10

Figure 1-17: Navy Stay time screen

Data Logging

15

Log Rate

1 min

2 min

5 min

10 min

15 min

30 min

60 min

1 sensor

11.2

22.5

56.2

112.4

168.6

337.3

674.5

2 sensors

5.6

11.2

28.1

56.2

84.3

168.6

337.3

3 sensors

3.7

7.5

18.7

37.5

56.2

112.4

224.8

L M H  1

Light, Medium, and Heavy
maximum hours displayed

HEAT CATERGORY  1

U.S. Navy/Marine Corp. Ashore

Stay Time

If Flag is selected, the Flag Conditions for U.S. Navy/Marines Corp. Ashore warning
system screen will appear. There are five flag systems, no flag, yellow, green, red, and
black, which provide heat exposure guidelines for acclimated ind ividuals. (For more
information, please refer to the “U.S. Navy/ Marine Corp. Ashore Flag System” on page

30.)

YELLOW FLAG 

flag condition screen

Figure 1-18: Flag Conditions for U.S. Navy/Marine Corp. Ashore

If EPRI is selected, the recommended working hours are shown based on a maximum
of four hours. Working hours for Li ght (L) , Moderate (M), and Heavy (H) workload
categories are displayed below.

 NOTE: “4:01” indicates greater than four hours.

4:01 3:00 1:30

Figure 1-19: EPRI Stay time screen

Data Logging

Data from each sensor is recorded at the interval set by the logging rate. Every time
Run/Stop is pressed, a session is either started or ended in memory. Each session
contains a header with time, date, and summary information.

Memory Table: Gives the number of logging DAYS.

Table 1-1: Data logging (or memory table) table example

Electronic sensor check

16

Electronic Sensor

Example of Verification module

Performing an electronic sensor check

check

Electronic sensor check

A verification module, Quest model 053-923, may be used to check the operation of the
QUESTemp’s wet bulb, dry bulb, and globe. The purpose is to verify that the electronic
components are wit hi n a sp ecifi c ra nge wit h kno wn val ues and a know n sour ce. T he
temperature tolerances should be within +/-0.5

•

NOTE: If the sensors are outside of the tolerances, this indicates the sensor alignment
should be serviced off-site for calibration.

Performing an electronic sensor check

1. Ensure the instrument is reading in Celsius prior to your electronic sensor check.

•

To change the temperature setting, select Setup from the mai n menu . Then ,

either Fahrenheit or Celsius will app ear on the screen. When selected, press I/O enter
key to switch between settings. For more information, please refer to Operating, page

10.

2. Remove the top sensor bar, place to the side, and plug in the verification module into the
center pins of the sensor housing.

3. Verify the measurement readings on the screen are within +/- 0.5°C tolerance to the
readings printed on the verification module label. Example below:

a. Wet Bulb (WB) – 11.1°C b. Dry Bulb (DB) - 45.3°C
c. Globe (G) – 69.2°C

•

NOTE: Relative humidity (RH) is not valid on this instrument.

4. Once completed, remove verification module and place sensor bar back on the instrument.
(Tighten down the t wo b olts .) Chang e the Cel sius rea ding ba ck to Fahr enhei t . (Refe r t o
step 1 a-b.)

o

C.

Sensor Alignment

17

“High” is selected when the arrow appears

(A)

(RH Sensor) Alignment menu

(B)

Note: WBGT is not used in sensor alignment

Sunshield:

Place unrolled finger cot,

RH Sensor Alignment

Sensor Alignment

For highly accurate measurement readings, you should align your QUESTempº 44/46 prior to
data logging. For the RH sensor, it is recommended to align with a High concentration level
using the 75% sensor salt, NaCl (sodium chloride), or a Low concentration level using the,
the 33% sensor salt, MgCl (magnesium chloride). (See

alignment salts.)

RH Sensor Alignment

1. To open, navigate to the main menu and select View by pressing I/O Enter key (see A). A
measurement screen will appear (see B).

2. Press and hold I/O Enter key and then press Down Arrow key from the View menu.
The Alignment screen will appear.

3. Press Up/Down Arrow key to select either High or Low. Then press I/O Enter key.

4. Remove (or slide) the Sunshield (white globe) from the RH sensor and place it to
the side. (See Figure 1-22.)

5. Place a latex finger cot (user supplied) over the humidity sensor in order for the
sensor to stabilize quicker about 15 minutes (or up to 60 minutes without).

finger cots can be found at various hardware stores or online such as ColePalmer.com.

Sensor alignment

ColePalmer.com

to order sensor

Figure 1-20: Main menu with view selected (A) & measurement screen (B)

in front of the text.

Figure 1-21: Alignment screen

Note: latex

Slide off of
RH sensor
to remove.

with a small hole cut in the
top, so it is completely
stretched over the humidity
sensor.

Figure 1-22: Sunshield & placement of finger cot prior to RH verification

Sensor Alignment

18

Example of high RH percentage prior to

Sensor alignment with High % RH level

Press Enter to save

Alignment salt (remove rubber
Once Alignment salt is placed, allow

levels to stabilize (about 15 mins).

Low RH Alignment screen

RH Sensor Alignment

6. Place the Salt container, with the salt alignment cap removed, over the RH sensor
(middle sensor). Allow level to stabilize for at least 15 minutes. (Refer to Figure 1-

23.)

• About sensor alignment: if readings are within +/- 0.5%, a change in sensor



alignment is not required. Skip to step 7 to return to main menu.

NOTE: For a High alignment, use the 75% sensor alignment salt (NaCL) and for a Low alignment,

use the 33% alignment salt (MgCl).

Adjust % to 33% (using up/down arrow
keys) and press Enter (after level has
stabilized) to store sensor alignment level.

7. In either the High/Low RH alignment screen, adjust the level to the percentage
displayed on the salt container by using the Up/Down Arrow keys. Press I/O Enter
key to save. (The instrument will state either “Successful” or “Failure” if it passed/did
not pass. For “Failure” repeat the steps above.)

the alignment.

8. To return to the main menu, press Run/Stop key.

9. Verify the RH sensor is +/- 0.5% of the specific percentage. If not repeat the steps
above.

10. Remove the alignment salt and finger cot. Replace the Sunshield over the RH sensor
when completed with the sensor alignment.

cap and place over RH sensor
with the sunshield removed)

Figure 1-23: RH ali gnment with Low % example

sensor alignment. Press up/down arrows
to adjust level after salt has stabilized.

Figure 1-24: RH alignment with High% screen

PrintingPrinting

19

Printing

Serial

Printing

The recorded data can be sent to a computer through the serial RS232 port or to a
parallel printer. Serial transmission requires Quest cable #54-715. Parallel
transmission requires Quest cable #56-875. With the cable plugged in, select
PRINT from the menu and press the I/O Enter key to enter the PRINT mode.
Begin printing by pressing the I/O Enter key. Press the key again to abort
printing.

Serial

TM

3M
storing, and graphing your data. Communications programs such as Window’s
Hyperterminal may also be used to capture the printout into a file. The baud rate
is fixed at 9600.

Detection Management Software (DMS) is recommended for downloading,

Figure 1-25: DMS Report example

20

SESSION: 1 Page 2

QUEST TECHNO LOGIES, a 3M company Page 1

Parallel

Parallel

Data can be sent directly to parallel printers that accept direct ASCII test input
without special drivers. Make sure the printer is powered on and is online,
ready to accept data, prior to printing.

HEAT STRESS REPORT
File Name ________ _________________ QUESTempº46 Rev 1.00

Serial # TK09090909

Employee _________________________
Facility _________________________ Session (3)

Start: 21-NOV-09 11:07:32
Department ____ ____________________ Sto p: 21-NOV-09 11:10:15

Job _________________________ Printed: 21-NOV-09 11:16:00
Comments/Notes______________________________________________
____________________________________________________________

Logging Interval: 1 minutes
Degrees Fahrenheit

MAXIMUM LEVELS, Sensor 1

WBGT 68.3 21-NOV-09 11:10:08
DRY BULB 82.7 21-NOV-09 11:09:56
GLOBE 91.4 21-NOV-09 11:10:12
REL HUMIDITY 14% 21-FEB-08 11:07:32
FLOW (m/s) 0.6 21-FEB-08 11:09:08

MAXIMUM LEVELS, Sensor 2

WBGT 80.5 21-FEB-08 11:10:11
DRY BULB 99.2 21-FEB-08 11:09:07
GLOBE 106.1 21-FEB-08 11:10:06
HEAT INDEX 0 00-XXX-00 00:00:00
REL HUMIDITY 15% 21-FEB-08 11:07:32

MAXIMUM LEVELS, Sensor 3

WBGT 68.6 21-FEB-08 11:09:56
DRY BULB 88.6 21-FEB-08 11:10:08
GLOBE 93.0 21-FEB-08 11:10:03
HEAT INDEX 0 00-XXX-00 00:00:00
REL HUMIDITY 11% 21-FEB-08 11:07:32

MAXIMUM LEVELS, Sensor(WEIGHTED AVERAGE)
WBGT 71.4 21-FEB-08 11:10:14

Figure 1-26: Report using parallel printer

Sensor: 1

Degrees Fahrenheit
Stay Times: ACGIH, Acclimated, WBGT, clo correction = 1.0 °C

TIME WBGT DRY GLOBE RH HI FLOW L M H VH
11:08 67.9 82.4 90.7 13 0 0.5 60 60 60 60
11:09 68.1 82.6 91.3 12 0 0.5 60 60 60 60

SESSION: 1 Page 3

Sensor: 2
Degrees Fahrenheit
Stay Times: ACGIH, Acclimated, WBGT, clo correction = 1.0 °C

TIME WBGT DRY GLOBE RH HI L M H VH
11:08 79.3 98.9 104.5 15 0 60 45 30 15
11:09 80.2 99.2 105.6 15 0 60 45 30 15

SESSION: 1 Page 4

Sensor: 3
Degrees Fahrenheit
Stay Times: ACGIH, Acclimated, WBGTi, clo correction = 1.0 °C

TIME WBGT DRY GLOBE RH HI L M H VH
11:08 68.1 88.0 92.7 11 0 60 60 60 60
11:09 68.4 88.3 92.9 11 0 60 60 60 60

SESSION: 2 Page 5

Sensor: WBGT(W-AVG) = .50*WBGT(1) + .25*WBGT(2) + .25*WBGT(3)
Degrees Fahrenheit

Stay Times: ACGIH, Acclimated, WBGT, clo correction = 1.0 C WBGT
WBGTo

TIME W-AVG W-AVG L M H VH

----- ----- ----- --- --- --- --­ 11:08 71.5 70.8 60 60 60 60
11:09 71.8 71.1 60 60 60 45

Airflow functionality

21

Airflow

Air Probe

Bracket

QT-46 sensor bar

3. Attach air probe to bracket
with thumb screen

1. Clip front of bracket
around lip of sensor bar.

2. Tighten bracket to sensor
bar with t humb screw.

Center bulb

Airflow functionality

(Available using 3M’s Air Probe on QUESTempº 46 model only)
Airflow is measured in meters per second over a range of 0 to 20m/s in 0.1m/s

increments. The sensor should be placed or held perpendicular in the air stream.
Unlike many anemometers, the omni-directional sensor does not require rotating to
find the maximum reading. Be careful not to block the airflow with your body
during measurements. The sensor’s measuring tip is fragile; be cautious if
measuring in ducts.

The Air Probe may be either hand held or mounted behind the QUESTemp° 46
using the mounting bracket hooked to the sensor bar beneath the center bu l b
sensor. (See Figure 1-22 below.)

A green lamp indicator in the Air Probe indicates that it is turned on and the
battery is good. If the green indicator turns off while the switch is in the On
position, replace or recharge the battery.

Functionality

Figure 1-27: Airflow configuration

Operational Check

22

Operational

Operating sequence

Operating sequence

1. Turn Flow On in the setup menu of the QUESTemp°46.

2. Plug the Air Probe into the port labeled Flow on the side of the QUESTemp°

3. Turn on the Air Probe ON and make sure the green lamp is lit.

Data Logging Airflow

To data log airflow in the QUESTemp° 46, the following two conditions must be
met.

1. First, turn Flow On in the setup menu.

2. Second, make sure that a temperature sensor bar is connected to the Sensor 1

Batteries f or Air Probe

The Air Probe uses a single NiMH Black&Decker VersaPak Gold battery. Typical
operating time of the battery is between 6 and 8 hours.

To change the battery, push in and twist, counterclockwise, the cap on the bottom
of the Air Probe. Pull out the battery. Insert a fully charged battery and replace
the cap.

To recharge the batteries, set the battery into the VersaPack charger. The
supplied charger accepts one or two batteries. A full charge takes 9 hours. An
indicator light shows that the battery is properly charging and it will remain on as
long as the battery is in the charger. Continuous charging is not a safety concern.

Operational Check

A verification module, 3M model 053-923, may be used to check the operation of the
QUESTemp. Remove the top sensor bar and plug the verification module into the top
of the unit. With the QUESTemp set to read in degrees Celsius, verify that the
displayed readings match those printed on the module within +/-0.5°C.

If the readings are not within the +/-0.5°C tolerance, then have the unit serviced and
calibrated.

Check

46.

• In the View or Run modes, airflow is displayed on the fifth screen.

location (top) of the QUE STemp°46. Flow prints out with the Sensor 1 data
therefore airflow data will only be reported if a sensor bar is plugged in.
Airflow is recorded during the run mode at the interval the QUESTemp° 46 is
setup for.

Power options

23

9-Volt Alkaline Battery Replacement

Power options

There are 3 options for powering the QUESTempº 46: a 9-volt alkaline battery, a NiMH
(Nickel Metal Hydride) rechargeable 6-cell battery pack, and an AC adapter. A door on
the back of the unit allows the user access to the 9-volt battery. The rechargeable
battery pack is located inside of the unit. If the rechargeable battery pack ever needs
to be replaced, it can be accessed by removing the screws from the bottom panel of
the unit.

The 2-position switch lo cated in the ba ttery compartme nt
must be set by the user if the power supply method is
changed. The up position is for the 9-volt battery. The
down position allows for either the AC adapter or the
rechargeable batteries. The AC adapter will trickle
charge the rechargeable batteries if they are in place or it
will simply allow for line power operation of the unit.

Figure 1-28: 9-volt battery

9-Volt Alkaline Battery Replacement

WARNING:

The 9-volt battery should be repla ced or the NiMH b attery p ack s hould be recharge d
when the voltage drops below 6.4 volts. The battery voltage is displayed when the
instrument is turned on. While turned o n, the battery v oltage c an be d ispl ayed at any
time by pressing the up or down arrow keys to move through the display until the
battery voltage screen appears. If, while operating , the ba ttery voltag e drops below

6.4 volts, the display will automatically switch to the display showing the battery
voltage along with a low battery mess age. After a low battery oc curs, the u nit will
continue to operate for approximately 8 hours. When the battery voltage falls to 6.2
volts or below, the unit will automatically turn off.

Replace only with an approved 9-volt alkaline battery.

Approved 9-Volt Batteries

Eveready: Energizer 522, EN22, 6LR61
Duracell: MN1604
Panasonic: 6LR61, 6AM6X
Rayovac: A1604
UltraLife: U9V

Replace batteries only in a non-hazardo us e nviro nme nt.

Power Options

24

NiMH Battery Pack

NiMH Battery Pack



WARNING:

The NiMH rechargeable battery pack is charged in the instrument using 3M’s AC
120V AC to 9V DC adapter (part #015-910) or 220V AC to 9V DC adapter (part
#015-680). A discharged battery pack requires an “overnight” charge of 16 hours
(for the 120V adapter). Leaving the AC adapter plugged in for extended lengths of
time or when operating the instrument will not harm the rechargeable batteries.

Recharge batteries only in a non-hazardous environme nt.

Figure 1-29: NiMH rechargeable battery

Appendix A

25

Appendix A

Appendix A: Specifications

Measurements

• Globe temperature, dry bulb temperature, wet bulb temperature, % relative

humidity, WBGTin, WBGTout, WBGT weighted average (if 3 sensor sets), and
Heat Index / Humidex.

• Temperatures given in Celsius or Fahrenheit.

• Index (QTº46 only): ACGIH TLV, U.S. Navy PHEL Charts, Flag Conditions for U.S.

Navy/Marine Corp. Ashore, and EPRI

Data Logging

Records and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30,
or 60 minutes. 128K bytes of data memory.

Languages

English, French, Spanish, Italian, German

Housing

Designed water resistant to a light rain or mist. If rain is frequent, best practice
would be to remote the sensor bar and keep the instrument sheltered.

Size

Height 9.2in (23.5cm); Width 7.2in (18.3mm); Depth 3.0in (7.5mm)
Dimensions include mounted sensor assembly

Weight

2.6 lbs. (1.2 kg) with mounted sensor assembly

Sensor Types

Temperature: 1000 ohm platinum RTD
Humidity: Integrated circuit with capacitive polymer sensor

Accuracy

• Dry Bulb and Globe Temperature: +/-0.5°C between 0°C and 120°C

• Waterless Wet Bulb Temperature: Expanded measurement uncertainty of 1.1ºC

(k=2) between 0ºC and 80ºC

• Relative humidity: +/- 5% between 20 to 95% (non-condensing)

Operating Temperature Range

Sensor Assembly: -5°C to +100°C
Electronics: -5°C to 60°C

Appendix A

26

Remote Sensor Bars

2 x 15pin D-sub jacks are located on the side of the unit for plugging in 1 or 2
additional sensor bars by using remote cables up to 200 feet (61m). The top sensor
bar can also be remote with a cable.

Power Options

9V alkaline, 7.2V NiMH rechargeable pack (charged in the unit), or AC adapter wall
power cube (AC adaptor will operate the unit or recharge the NiMH battery pack)

Battery Life

9V alkaline: 80 hours
Rechargeable Nickel Metal Hydride: 160 hours
(Adding additional sensor bars reduces battery life.)

Charge Time (NiMH Battery Pack)

16 hours (charge in the unit)

Air Probe Accessory

Range:

0 - 20 meters per second. 0.1m/s increments

Sensor:

Omni directional heated thermistor

Accuracy:

+/- (0.1 m/s + 4%) of meas urem e n t val u e

Battery Life:

6 - 8 hours for fully charged NiMH battery

Charge Time:

9 hours

Appendix B

27

Work and recovery

Light

Moderate

Heavy

Very Heavy

75% to 100%

31.0

28.0

26.0*

23.5*

50% to 75%

31.0

29.0

27.5

25.5*

25% to 50%

32.0

30.0

29.0

28.0

0% to 25%

32.5

31.5

30.5

30.0

Work and recovery

Light

Moderate

Heavy

Very Heavy

75% to 100%

28.0

25.0

22.5*

20.0*

50% to 75%

28.5

26.0

24.0

22.5*

25% to 50%

29.5

27.0

25.5

24.5

0% to 25%

30.0

29.0

28.0

27.0

Appendix B

ACGIH

Appendix B: Heat Exposure Tables

ACGIH

Screening Criteria for Heat Stress Exposure. WBGT values in °C.

the ACGIH’s guidelines, the temperature values represent a work and rest process
which is explained in the standards. Please refer to the ACGIH TLVs and BEIs for
specific details.

(TLV )

(Action Limit)

NOTE: according to

*Values not specified by ACGIH have been estimated for continuity.

Appendix B

28

Clothing type

Clothing correction (Addition to WBGT (ºC)

Work clothes (long sleeve shirt and pants)

0º

Cloth (woven material) coveralls

0º

Double-layer woven clothing

3º

SMS polypropylene coveralls

0.5º

Polyolefin coveralls

1º

Limited-use vapor-barrier coveralls

11º

WBGT(F)

I

II

III

IV

V

VI

80.0

>8:00

>8:00

>8:00

8:00

6:35

4:30

81.0

>8:00

>8:00

>8:00

8:00

6:35

4:30

82.0

>8:00

>8:00

8:00

7:05

5:25

3:40

83.0

>8:00

8:00

7:45

6:25

4:55

3:20

84.0

>8:00

8:00

7:05

5:55

4:30

3:05

85.0

8:00

7:45

6:30

5:20

4:05

2:50

86.0

8:00

7:05

5:55

4:55

3:45

2:35

87.0

7:25

6:30

5:25

4:30

3:25

2:20

88.0

6:45

5:55

4:55

4:05

3:10

2:10

89.0

6:10

5:25

4:30

3:45

2:50

2:00

90.0

5:40

5:00

4:10

3:25

2:40

1:50

91.0

5:15

4:35

3:50

3:10

2:25

1:40

ACGIH Clothing Corrections

ACGIH Clothing Corrections

The following clothing corrections are in degrees Celsius. When a clothing correction is
entered into the setu p portion of the QUESTemp° 46, the value is added to the WBGT
only for looking up the stay times. The WBGT value displayed by the unit does not
reflect corrections.

Cited from "American Conference of Governmental Industrial Hygienists - Threshold
Limit Values and Biological Exposure Indices for 2008"; Reprinted with permission from
ACGIH

United States Navy

Physiological Heat Exposure Limits (PHEL) Time Table
(Without the presence of fuel combustion gases/fuel vapors)

The recommended working hours are shown based on a maximum of eight hours.
Naval personnel will follow a category, I - VI, based upon their function.

PHEL Curves (Total Exposure Time in Hours: Minutes)

Appendix B

29

WBGT(F)

I

II

III

IV

V

VI

92.0

4:50

4:10

3:30

2:55

2:15

1:30

93.0

4:25

3:50

3:15

2:40

2:00

1:25

94.0

4:05

3:35

3:00

2:25

1:50

1:15

95.0

3:45

3:15

2:45

2:15

1:45

1:10

96.0

3:25

3:00

2:30

2:05

1:35

1:05

97.0

3:10

2:45

2:20

1:55

1:25

1:00

98.0

2:55

2:35

2:10

1:45

1:20

0:55

99.0

2:40

2:20

2:00

1:40

1:15

0:50

100.0

2:30

2:10

1:50

1:30

1:10

0:45

101.0

2:20

2:00

1:40

1:25

1:05

0:45

102.0

2:10

1:50

1:35

1:15

1:00

0:40

103.0

2:00

1:45

1:25

1:10

0:55

0:35

104.0

1:50

1:35

1:20

1:05

0:50

0:35

105.0

1:40

1:30

1:15

1:00

0:45

0:30

106.0

1:35

1:25

1:10

0:55

0:45

0:30

107.0

1:30

1:15

1:05

0:50

0:40

0:25

108.0

1:20

1:10

1:00

0:50

0:35

0:25

109.0

1:15

1:05

0:55

0:45

0:35

0:25

110.0

1:10

1:00

0:50

0:40

0:30

0:20

111.0

1:05

1:00

0:50

0:40

0:30

0:20

112.0

1:00

0:55

0:45

0:35

0:25

0:20

113.0

0:55

0:50

0:40

0:35

0:25

0:15

114.0

0:55

0:45

0:40

0:30

0:25

0:15

115.0

0:50

0:45

0:35

0:30

0:20

0:15

116.0

0:45

0:40

0:35

0:25

0:20

0:15

117.0

0:45

0:40

0:30

0:25

0:20

0:10

118.0

0:40

0:35

0:30

0:25

0:15

0:10

119.0

0:35

0:35

0:25

0:20

0:15

0:10

120.0

0:35

0:30

0:25

0:20

0:15

0:10

121.0

0:35

0:30

0:25

0:20

0:15

0:10

122.0

0:30

0:25

0:20

0:15

0:15

0:10

123.0

0:30

0:25

0:20

0:15

0:10

0:10

124.0

0:25

0:25

0:20

0:15

0:10

0:05

United States Navy

Appendix B

30

WBGT°C

Light

Moderate

Heavy

28

4:01

4:01

3:00

29

4:01

4:00

2:00

30

4:01

3:00

1:30

31

4:01

2:00

1:15

32

4:00

1:30

1:00

33

3:30

1:15

0:45

34

3:00

1:00

0:40

35

2:30

0:53

0:35

36

2:00

0:45

0:30

37

1:45

0:40

0:25

38

1:30

0:35

0:20

39

1:15

0:33

0:18

40

1:00

0:30

0:15

41

0:53

0:28

0

42

0:45

0:25 0 43

0:38

0:23

0

44

0:30

0:20 0 45

0:28

0:18 0 46

0:25

0:15 0 47

0:23 0 0

48

0:20 0 0

49

0:18 0 0

50

0:15 0 0

No Flag

Green

Yellow

Red

Black

<80.0

80.0-

84.9

85.0-

87.9

88.0-

89.9

>90

<26.7

26.7-

29.4-

31.1-

Flag Conditions for U.S. Navy/Marine Corp. Ashore

Flag Conditions for U.S. Navy/Marine Corp. Ashore

The following chart details the heat stress monitoring Flag Conditions for U.S.
Navy/Marine Corp. Ashore in Degrees Fahrenheit and Celsius.

Flag Degrees F

Flag Degrees C

* Rest means minimal physical activity (sitting or standing) and should be
accomplished in the shade if possible.

Electrical power research institute (EPRI)

The recommended working hours are shown based on a maximum of four hours. A
time of 4:01 indicates greater than 4 hours

29.4

.

31.1

32.2

>32.2

Appendix C: Accessories

31

Appendix C

Air Probe Accessories

Appendix C: Accessories

Sensor array with 2 inch globe 57-902
6 Foot shielded remote sensor cable 53-924
25 Foot shielded remote sensor cable 53-925
100 Foot shielded remote sensor cable 53-926
200 Foot shielded remote sensor cable 53-927
Serial computer cable 54-715
Parallel printer cable 56-875
120VAC to 9VDC adapter 15-910
220VAC to 9VDC adapter 15-680
Verification module 53-923
Tripod 59-045
Replacement wicks 56-679
Water bottle 2 oz. 56-068
User’s manual 56-663

Air Probe Accessories

NiMH battery 53-039
Dual 120 volt charger 53-037
Dual 220 volt charger 53-038

32 Appendix D: Quest Service

Appendix D

QT⁰ 44/46 data port
Connected to serial port

Contacting Quest Technologies

Appendix D: 3MTM Detection Management Software DMS

The focus of this section is to briefly introduce the following DMS topics: downloading data, setting up parameters, and viewing
data in charts , graphs, and reports. All data may be store d and saved in the software for record rete ntion and/or for historical
analysis. (For further details on D M S, please refer to the online Help and select Contents.)

The QT ⁰ 44/46 instrum ents are used for measuring occupational heat stress. The followi ng sections explain communicating with
the QUESTem p and DMS, saving and sending configurations, downloading, viewing data, setup, firmware updates, and printing
reports.

QUESTempo 44/46

The QT⁰ 44/46 instruments are used for measuring occupational heat stress. The following sections explain communicating with
the QUESTem p and DMS, saving and sending configurations, downloading, viewing data, setup, firmware updates, and printing
reports.

Communication setup

The communication setup is an imp ortant starting point with your instrument and DMS. Once communic ating, you have the option
to download data, configure instrument parameters and use quick setup features for time and date settings. The following
explains the QT⁰ 44/46 communication setup steps.

1. Using a 3M cable, part number 054-715, plug the cable into the computer and plug the opposite end into the side jack of the
QT⁰ 44/46 data port.

2. From the start pag e of DMS, select the or buttons and the instr ument communication panel
will appear.

3. Select Heat Stress and then select th e Model Type by clicking on QT⁰44 or QT⁰46. (See 1 and 2). (You are now rea dy
to setup or download your instrument.)

• Conn ect e d and pow er ed on

Figure 1-30: Communicating with the QT⁰ 44/46 and DMS

Appendix B

33

1

2

Warranty

4. Once selected, se e the following secti ons for downloading or setup parameters to l earn more about working with the QT⁰
44/46.

 NOTE: the first time you communicate with the QTemp and DMS the Found N ew Hardware wizard wi ll appear. Please

• See the subsequent QT⁰44/QT⁰46 instrument setup sections to s etup or download your instrument.

Figure 1-31: QT⁰44/46 downloading data

install and follow the screen prompts.

Appendix B

34

2 3 41 3

4

Warranty

Downloading data with the QT⁰44/46

The Instrument Download feature is used to download yo ur files from the QT⁰44/46 into the software for review and analysis of
the data. Once the files are downloa ded and if “Go to Data Finder after Download” is checked, DMS will open into the Data
Finder wind ow. (Note: The Data Fi nder window stores all of the downloaded data by instrument, session and study. The
information is stored in a bar chart style with measurements/parameters displayed on the top navigati onal bar. To download,
please follo w steps below:

1. To download the QT⁰ 44/46 data, ensure your instrument is communicating pro perly. (See communication setup for details.)

2. From the Start page, select the button.

3. Select the Heat Stres s Family and select the appropriate QT⁰ 44/46 model from the Instrument window (see 1 and 2).

4. O ptional: click on the “Go to Data Finder after download” checkbox if you wish to view your session/study infor mation after
the downloa d (see 3).

5. Press the Download button (see 4).

Figure 1-32: Downloading QT⁰44/46 files

Appendix B

35

Double-click to

3

Warranty

Viewing Data in DMS

The following section outlines viewing your data with the QT⁰ 44/46 models.

Selecting a session/study

To view downl oaded data from the welcome page, click on the button and the data finder sc reen will appear.
(Or select t he Data Finder tab if already opened.)

1. Select a session by either double-clicking on data or click on the session/st udy and select the button. (Note:

select/view
QT⁰44/46 data in
charts and graphs

Charts and Graphs in Panel layout view (PLV) page

The measurements and parameters will be displayed in charts and graphs which may be customized for analysis and/or
reporting purposes.

• Note: a button provides a quick link to viewing the panel layout vi ew data in a report format .

1. In the PLV page, it is divided into Work Items (see A), Add panel (see B), Arrange Panels (see C) and Data Panels
(see D).

• Work items (A) – select eith er the session or study (in order to view appropr iate measurement/ parameter data).

• Add panel (B) – double-click on a chart/table type and it will appear as a panel on your screen.

• Arrange pa n els (C) – displays the order of t he charts/tables which appear in the panel layout. Also, when a chart/table is

selected in t he arrange panels palette, the associated data panel is selected. The resize handles are applied and the
panel is brought into view. (This is very useful when several panels are display ed.) To delete a panel, right-click on a
chart/tabl e and press delete from your keyboard.

• Data panels (D) – used to view your m easurement and/or parameters from your study. Note: use the menu b ar icons
and/or configure icon to customize parameters.

the example below illustrates a session selected with a run time of 3 minutes.) (See 1).

• Family: Heat Stress: QT⁰44/46 data is stored in t his family. (See 2).

• Session/Study: The EVM data is organized by the table headings, such as the session/study name (See 3).

• Start Time: To quickly locate your study by most recent start time, cli ck on the Start Time heading and it will sort

ascending/descending (See 4).

• Parameters & measurements: The table headings and columns are customizable by a quick click, drag, an d drop
to a new colum n location (similar to MS Excel.)

Figure 1-33: Selecting a session

Appendix B

36

A

B

C D D

D

Configure button

E

Warranty

• Toolbar and Configure button (E) – the toolbar and configure button are used to customize or select different
measurement parameters.

& Toolbar

Figure 1-34: QT⁰44/46 data in panel layout view

Appendix B

37

Remember setting

Warranty

2. To change the graph/table data parameters, click on the button. Each graph/table may have diff erent
configurabl e parameters dependi ng on the parameters a pplicable to the specific panel.

3. To view the data as a report, click the button. (Note: the panels will print in t he order in which they are

displayed in t he panel layout page.)

4. The quick tips below explain how to customize t he panels and/or graphs/tables:

• To stretch the graph/tables, cli ck on one the corner’s edge of a chart or table a nd drag the mouse. (Note: selection

handles will appear. See A.) The gra ph/table will expand or shrink when resizing.

• To move the graph, click, drag and drop to the appropriate panel position.

• To change ranges, when clicking on either the x-axis or y-axis, click and drag the mouse until the appropriate range

is selected. (Note: it will span the numbers up or down depending on how you drag the mouse.)

• To save a layout, Right-click outside the tables/gra phs area as displayed below. Click Remember Setting.

Figure 1-35: Rear ranging panels and saving layout

Appendix B

38

Report exam ple

Quickly switch back to the panel

Reports are

Customize the report by

inserting on-site testing images

Customize the

button.

Print

Warranty

Reports and Printing

with logged data
chart from the
QT⁰46

displayed in t he
order in which they
are displayed from
the panel layout.

To quickly create reports, open yo ur data (in the data finder page) and click t he quick report button. A
standard template of charts and gr aphs (or panels) will appear in the report.

• Viewing reports: if you are in the data layout page and you have rearranged the char ts/tables, the report will print in

the sequenc e in which they appear on the screen.

• Printing reports: while in the report view page you have two options outlined below:

• Click on t he icon from the title bar.

• Click on t he icon f rom the session report title bar.

report by ins erting
on-site testing
images via the

layout view (charts & tables)

Figure 1-36: Sample QT⁰46 report

Appendix B

39

Warranty

3M Service

Contacting 3M

Should your 3M equipment need to be returned for repair or for recalibration, please contact the
service department at the following number or access the online form via the website. For technical
issues, please contact Technical Support.

Service Department and Technical Support: 1 [phone].
Fax: [phone]. Office hours are 8:00 a.m. to 5:00 p.m. United States Central.

• E-mail: [e-mail]

• Internet: www.3M.com/detection

Calibration

The QUESTempo 44/46 heat stress monitor and 3M field calibrator devices should be examined
regularly by the factory. An annual calibration is recommended. (Please see Service Department
above.)

Warranty

3M warrants our instruments to be free from defects in materials and workmanship for one year under
normal conditions of use and service. For United States customers, we will replace or repair (our
option) defective instruments at no charge, excluding batteries, abuse, misuse, alterations, physical
damage, or instruments previously repaired by other than 3M. Microphones, sensors, printers, and
chart recorders may have shorter or longer warranty periods. This warranty states our total obligation
in place of any other warranties expresses or implied. Our warranty does not include any liability or
obligation directly resulting from any defective instrument or product or any associated damages,
injuries, or property loss, including loss of use or measurement data.

For warranty outside the United States, a minimum of one year warranty applies, subject to the same
limitation and exceptions as above with service provided or arranged through the authorized 3M
distributor or our 3M European Service Laboratory. Foreign purchases should contact the local 3M
authorized sales distributors for details.

About Us

3M Detection Solutions is a world class manufacturer of rugged, reliable instrumentation and software
systems that help monitor and evaluate occupational and environmental health and safety hazards, including
noise dosimetry, sound level monitoring, heat stress, indoor air quality and select toxic/combustible gases.
The 3M Detection brand of instrumentation is used by safety and industrial hygiene professionals to help
comply with applicable occupational standards and regulations.

About 3M Personal Safety

3M offers a comprehensive, diverse portfolio of Personal Safety solutions providing respiratory
protection, hearing protection, fall protection, reflective materials for high visibility, protective clothing,
protective eyewear, head and face protection, welding helmets, and other adjacent products and
solutions such as tactical safety equipment, detection, monitoring equipment, active communications
equipment and compliance management. In 2012, 3M celebrated 40 years of safety leadership –
recognizing the company’s respiratory and hearing protection solutions introduced in 1972. Visit
www.3M.com/PPESafety or http://m.3m.com/PPESafety for details.

Personal Safety Division

3M Detection Solutions
1060 Corporate Center Drive
Oconomowoc, WI 53066
ISO 9001 Registered Company
ISO 17025 Accredited Calibration Lab
Customer Service: 262-567-9157
Toll Free: 800-245-0779

www.3m.com/detection

3M is a trademark of 3M Company
used under license in Canada.
Please recycle. Printed in USA.
© 2013 3M
All rights reserved.
053-664, Rev.F 8/13