3M QUESTempo II User manual

3M Personal Safety Division
3MTM QUESTEMPoII Personal Heat Stress Monitor
QUESTempoII User Manual
Market Leader
©3M 2013. All Rights Reserved
Personal monitor
From the

TABLE OF CONTENTS
Introduction --------------------------------------------------------------------------------- 1
Functions------------------------------------------------------------------------------------- 2
Ambient Compensation---------------------------------------------------------------- 2
Keypad Functions----------------------------------------------------------------------- 2
Defaults------------------------------------------------------------------------------------ 6
Data Logging----------------------------------------------------------------------------- 6
Printing---------------------------------------------------------------------------------------- 6
Computer Downloading using DOS ------------------------------------------------- 8
Computer Downloading Using Windows™ --------------------------------------- 9
Printout summary ----------------------------------------------------------------------- 11
Low Battery----------------------------------------------------------------------------- 11
Audible Alarm -------------------------------------------------------------------------- 12
Calibration --------------------------------------------------------------------------------- 12
Calibration Method-------------------------------------------------------------------- 13
Ear Sensor Use --------------------------------------------------------------------------- 14
Ear Sensor Insertion ----------------------------------------------------------------- 14
Ear Sensor Removal ----------------------------------------------------------------- 15
E.A.R.® Plug Care-------------------------------------------------------------------- 16
Operating----------------------------------------------------------------------------------- 16
Indicators and Action ------------------------------------------------------------------ 16
Specifications----------------------------------------------------------------------------- 17
Accessories ------------------------------------------------------------------------------- 18
Part Numbers -------------------------------------------------------------------------- 18
Warranty & Contact --------------------------------------------------------------------- 18
Customer service ------------------------------------------------------------------------ 18
Contacting 3M Detection Solutions ----------------------------------------------- 18
International customers-------------------------------------------------------------- 18
Warranty -------------------------------------------------------------------------------- 19

1Introduction
QUESTempº II
Introduction
The QUESTEMPII is an easy to use personal heat stress indicator which
monitors the human body's temperature via the ear canal. Any offset
between the ear and body temperatures is adjusted for by calibrating
directly to the individual's oral temperature.
The QUESTEMPII personal monitor is intended to be a part of a well
managed heat stress program. It is an alerting device which warns the
user that their body temperature has risen above the "safe" level and that action should soon
be taken to allow the body to cool. The QUESTEMPII monitor acts as an aid and does not
replace the individuals own feelings and judgment.
The hypothalamus, located at the base of the brain, is the body's temperature controller. The
ear canal borders the hypothalamus and will track its temperature changes once the canal is
isolated from the outside environment. A small sensor is placed in the ear canal, via an
E.A.R.® earplug, which will monitor the change in the body's temperature and set off an
audible alarm when the level reaches a preset limit. The recommended limit is 38C
according to the WORLD HEALTH ORGANIZATION and has been accepted by the ACGIH,
NIOSH, and the International Organization for Standardization. These organizations also
recognize that closely monitored, acclimatized individuals may have a higher tolerance limit of
up to 39C. As the temperature rises above the limit, the risk of heat related problems
occurring increases. The QUESTEMPII has the capability of setting the initial alarm level
between 38C and 39C and it will automatically produce a secondary alarm if the temperature
exceeds 0.5C above the initial alarm level.
Many people who work in hot and humid areas, particularly those enclosed in protective suits,
are in danger of overheating and becoming heat stressed. Heat stress can occur when the
body's cooling system can not keep up with the heat induced by the activity or environment of
the worker. Some symptoms of overheating are dizziness, exhaustion, heat cramps,
dehydration, heat collapse, or, in extreme cases, heat stroke or death. Workers in steel mills,
asbestos cleaning, power plants and heavy machine operators are examples of people who
may often find themselves in environments posing a risk for heat related illnesses.
Introduction

2Functions
QUESTempº II
The QUESTEMPII consists of a belt or pocket worn electronic assembly with a thin flexible
cable leading up to a small earmold which contains the sensor and a small speaker for an
audible alert. The sensing device protrudes from the earmold and a disposable E.A.R.® foam
earplug slides over the sensor providing a comfortable vehicle for inserting and maintaining
the sensor. The speaker and earmold remain just outside of the ear to completely avoid any
possible damage or injury to the ear canal.
Functions
Ambient Compensation
Unique to the QUESTEMPII, a second sensor, located in the earmold, will sense and
compensate for any non-drastic changes (less than +/-10C) in the thermal environment.
This is necessary because changes in the thermal environment will have an effect on
the outer tissues of the body including the ear canal. By compensating for these
changes, error induced by the environment is notably reduced.
The earmold temperature is data logged and included in the printout as an indicator of
the changing thermal environment.
If the thermal environment changes drastically (greater than +/- 10C), then the
QUESTEMPII should be recalibrated in that environment.
Keypad Functions
A desired function is activated by simply depressing and releasing the
corresponding key. For the functions CAL, PRINT, CLOCK, PRINT
RATE, and ALARM LEVEL, when the key is pressed once the current
value or setting will appear in the display. Pressing the same key a
second time (consecutively) will allow that setting to be changed.
Functions

3Functions
QUESTempº II
If the unit is turned on and in run, the calibration may be stored
when the CAL button is pressed. If “0---“ appears, then press CAL a
second time to allow the oral temperature from the digital thermometer
to be entered manually. Press the ARROW key continuously to adjust
to the specific temperature. Then press the ENTER key to store the
calibration data.
If an oral thermometer is plugged into to the CAL jack (using the
CALProbe1 which is no longer available), then the oral temperature will
be displayed and updated. Pressing CAL a second time will display
the value of 'ORAL minus EAR' if the thermometer is in place. Press
ENTER to store the calibration data.
See the section on CALIBRATION for more details.
The default baud rate will appear in the display. If the ENTER key is
pressed then serial ASCII RS232-formatted data will be sent from the
output jack and 'prn' will appear in the display. If the PRINT/DATA key
is pressed a second time, the displayed baud rate will blink indicating
that a new rate may be selected with the ARROW and ENTER keys.
The baud rate options are 300, 600, 1200, 2400, 4800, and 9600 baud.
After pressing ENTER the data will be sent out and 'prn' will appear in
the display.
To halt printing, simply press the PRINT/DATA key again.
The ear temperature will be displayed and the unit will begin to log the
ear (aural) temperature at 10 second intervals along with temperature
of the second sensor located within the blue earmold. If there is a
thermometer plugged into the CAL jack and its temperature is in the
range between 30C and 42C, then its value will also be logged. All
data will be time averaged from 2 second samples. While the
instrument is in the RUN mode, a small arrow will be displayed in the
upper left corner of the display. Turn the unit OFF to exit the RUN
mode.
In the RUN mode, the audible alarm will be activated if the EAR
CAL
PRINT/
DATA
RUN

4Functions
QUESTempº II
temperature exceeds the alarm level.
Turning the unit OFF or printing will abort the
RUN mode.
If any of CLOCK, PRINT RATE, PRINT, or CAL keys
are pressed while in the RUN mode, the display will
show that function's setting but the unit will continue to data log and
check the temperature. To return the aural temperature to the display,
press the RUN key again.
Shows the current time. Pressing CLOCK a second time will cause the
right-most digit of the time to flash and allows the clock time to be
changed. Cycle through each digit using the ARROW and ENTER
keys (in the same fashion as most digital watches) to change the time.
Time is displayed in 24-hour format and is maintained in the unit even
when it is turned off. In addition, a lithium battery backup will maintain
the time even when the 9-volt battery is removed.
Displays the rate at which sampled temperature data will be printed.
Pressing PRINT RATE a second time will cause the number in the
display to flash and a new rate can be selected using the ARROW and
ENTER keys. Selectable rates are: 10sec, 30sec, 1min, 5min, and
10min. Note that this only affects the quantity of data printed, not the
amount of data actually stored in the unit.
Displays the current alarm level setting. If ALARM LEVEL and
ARROW are pressed simultaneously, the displayed level will flash and
can be altered between 38C and 39C using the ARROW and ENTER
keys. The alarm level may be changed only if the memory is clear,
prior to logging data. Once run time has accumulated, the unit must be
reset to change the alarm level setting.
In the RUN mode, the audible alarm will be activated if the EAR
temperature exceeds the set alarm level. In addition, a secondary
CLOCK
PRINT
RATE
ALARM
LEVEL

5Functions
QUESTempº II
alarm will sound if the temperature exceeds 0.5C
above the initial chosen alarm level.
Toggles between Celsius and Fahrenheit while in the
RUN mode. Calibration and alarm levels operate in
Celsius only.
Shows the battery voltage strength in the display while sounding the
audible alarm. The actual battery voltage is displayed until the level
falls below 7.5 volts. Below 7.5V "Lo" appears in the display indicating
that the battery should be replaced with a new 9V alkaline.
The unit will operate for at least 8 hours from the time that "Lo" first
appears. Once the battery voltage falls below 7.2 volts the alarm will
sound continuously and data logging will cease. If this occurs, turn the
unit OFF and replace the battery with a new 9V alkaline.
ARROW key used to change a parameter for the following
functions: PRINT (baud rate), CLOCK, PRINT RATE, ALARM, and
CAL when manually entering the calibration data.
Enters a change in parameters when one of the following functions
is selected and flashing: PRINT, CLOCK, PRINT RATE, ALARM,
or CAL.
When held down for 3 seconds, it will clear all logged and
calibration data. All other unit settings remain unaltered.
Toggles between ON and OFF. OFF will have a 3 second count
down and is used to exit the RUN mode. Note that turning the unit
OFF will NOT reset or erase any of the logged data.
When the QUESTEMPII is turned ON, the internal programming
version number is displayed until a key is depressed.
C/F
BAT/
TEST
ENTER
RESET
ON/OFF

6Printing
QUESTempº II
Defaults
The factory settings for the QUESTEMPII are as follows:
The default settings for the CLOCK, PRINT baud rate, PRINT RATE, and ALARM
LEVEL can be changed by the user. When the unit is powered OFF, the settings at that
time will be stored as the new default values. Temperature, however, will always default
to Celsius and the CALibration level will be reset to 0C whenever the unit is RESET (at
power OFF, the last value of CALibration is stored).
Data Logging
In the RUN mode, every ten seconds the QUESTEMPII will store the ear and earmold
temperature data as well as oral temperature data if the thermometer is plugged in to the
CAL jack. The numbers stored represent the average value for the previous 10
seconds. The data can be transmitted to a computer or printer (see the section
PRINTING).
The logged information can be cleared from memory by pressing the RESET key for a
count down of 3 seconds. Turning the unit OFF will not effect the memory. If the unit is
put in the RUN mode multiple times without RESET, data will be stored following the
information already in memory.
12.5 hours of data can be logged. Once the memory is full, the unit can no longer store
data but it will continue to operate.
Printing
Logged information can be sent to a computer or serial printer using an RS232 serial protocol.
The amount of data printed is determined by the instrument’s PRINT RATE key.
CLOCK = U.S. Central Time
PRINT baud rate = 1200 Baud
PRINT RATE = 10 Seconds
ALARM LEVEL = 38.0ºC
CALibration LEVEL = 0C
Temperature units = Celsius
Printing

7Printing
QUESTempº II
Note: if the unit is in the RUN mode when printing is initiated, the RUN mode will
be canceled and data logging will cease.
COMPUTER CABLES: Connect the meter to a computer using cable #58-867 for a 25
pin serial port. [The standard for a computer's serial port is a 25 pin or a 9 pin male
(pins) connector. Do not connect to the computer's printer output port which is a 25 pin
female (holes) connector. If you have cable #58-867 but your computer's serial port has
only 9 pins, then you may use a 25 to 9 pin converter available at most computer or
electronic stores. No other cables should be used.]
PRINTER CABLES: Connect the meter directly to a serial printer using cable #58-847.
[A serial printer's input is typically a 25 pin female (holes) connector. Do not use cable
#58-847 in conjunction with a computer's printer cable because that connects into the
printer's parallel input port. Many printers are parallel only and can not accept data from
the QUESTemp  II. For printers that have both serial and parallel inputs, refer to the
printer's manual for configuring the serial port.]
Note: Cables #58-867 and #58-847 are internally wired the same. The only
difference between them is the gender. A straight through 25 pin gender converter
available at most computer or electronic stores can allow you to use one cable for
either a computer or printer.
To initiate printing, use the following sequence:
1. With the unit ON, plug the printer cable into the OUTPUT port of the QUESTempII.
2. Be sure the desired PRINT RATE is selected (see the key function PRINT RATE).
3. Press the PRINT/DATA key. If the default baud rate (speed of data transmission)
in the display is not the desired baud rate, press the PRINT/DATA key a second
time and use the ARROW key to select a new rate.[If you are downloading to a
computer, be sure that it is ready to accept data prior to moving to step #4.]
4. Press ENTER and the data will be sent. "Prn" will appear in the display until all of
the data has been sent.
5. To halt printing, simply press the PRINT/DATA key while "Prn" is still in the display.

8Computer Downloading using DOS
QUESTempº II
Computer Downloading using DOS
The MODE and COPY commands can be used directly from the DOS prompt to
download the information. Type the following commands at the DOS prompt.
At this point, the user should have the QuestempII print. Nothing will happen on the
screen until all of the information has been sent. When the instrument is done sending
the information, the PC will respond with "1 FILE COPIED". There now exists a file
called filename in the current directory in the computer.
The user can print this out by typing: PRINT filename <enter>
MODE COMx:baud,N,8,2,P <enter>
After typing the MODE command, the computer should respond with
the “RESIDENT PORTION OF MODE LOADED”. If the computer
responds with an error message, then there is a good chance that the
COM port selected is not valid.
COPY COMx: filename <enter>
After typing the COPY command, the cursor will move to the next line
on the screen and blink. If you receive an error message, retry the
COPY command.
xrefers to which com port is being used. Typically this is COM1 or COM2.
baud refers to the baud rate and must match the QuestempII's settings.
filename refers to any DOS filename the user makes up.
Downloading

9Computer Downloading Using Windows™
QUESTempº II
Computer Downloading Using Windows™
There is a variety of commercially available software that accepts data from the
QuestempII. These software packages are usually termed "communications software".
Microsoft®WindowsTM has a communications program under the ACCESSORIES icon
called TERMINAL. Instructions on how to use TERMINAL are located in the Windows'TM
manuals.
Using any of these communications programs, the user must select the com (serial) port
and the baud rate. The Quest cable must be plugged into the selected com port and the
baud rate on the unit must match the rate selected in the software. The PC programs
also need the following information in their setup:
For TERMINAL, the settings are found by first selecting SETTINGS, then
COMMUNICATIONS.
data bits = 8 stop bits = 2
parity = none handshaking (flow control) = hardware

10 Computer Downloading Using Windows™
QUESTempº II
Figure 1: Sample Printout
QUESTEMPº II Personal Temperature Monitor
Serial Number: JU1030001 Software Version Number: 1.1
Name: Date:
-------------------------------------------------------------------------------------------------------------------------
---
Location:
-------------------------------------------------------------------------------------------------------------------------
---
-------------------------------------------------------------------------------------------------------------------------
---
1Start Time: 11:34 2End Time: 13:32 3Total Run Time: 01:58
4Alarm Level Setting: 38.0 ºC
5Print Rate: 1 Min.
6High Temperature: 38.1 ºC At Time: 13:32
7Low Temperature: 36.1 ºC At Time: 11:34
8CAL in degree C @ Time
--------------- -------
0.4 11:41:20
SAMPLED DATA
Time 9Ear Temp. 10Mold Temp. 11Oral Temp.
Hr:Min ºC ºF ºC ºF ºC ºF 12Alarm
--------- ----- ------ ----- ------ ------ ------ ----------
11:34 36.1 97.0 32.7 90.9
11:35 36.1 97.0 32.7 90.9
11:36 36.2 97.2 32.8 91.1
11:37 36.3 97.4 32.9 91.3
11:38 36.3 97.4 33.0 91.5
11:39 36.4 97.5 33.1 91.7 36.7 98.1
11:40 36.4 97.5 33.1 91.7 36.9 98.5
11:41 36.4 97.5 32.9 91.3 36.9 98.5
11:42 36.9 98.4 33.0 91.5
11:43 36.9 98.4 33.0 91.5
13:29 37.9 100.2 27.6 81.7
13:30 37.9 100.2 27.4 81.3
13:31 38.0 100.4 27.3 81.1 *
13:32 38.0 100.627.480.9 **

11 Printout summary
QUESTempº II
Printout summary
1. Start time refers to the clock time when the RUN mode was initiated.
2. End time refers to the clock time when the last RUN was halted by either turning the
unit OFF or PRINTING.
3. Total run time is the difference between the start and end times. If there were
multiple runs an asterisk will appear after the total run time indicating that there is a
break in the run time data.
4. The current alarm level setting is printed.
5. The current sample rate indicates the amount of time between each set of data
printed.
6. The highest ear temperature logged is printed along with its time of occurrence.
7. The lowest ear temperature logged is printed along with its time of occurrence.
8. The calibration value is that of 'ORAL minus EAR' at the time the calibration
sequence was completed. If the unit is calibrated more than once, each additional
value and time will be printed.
9. Ear temperature data (including the calibration offset if the unit was calibrated) is
printed in both Celsius and Fahrenheit.
10. Earmold temperature data is printed in both Celsius and Fahrenheit. This refers to
the second sensor located in the blue earmold and is an 'indicator' of what was
occurring in the environment. The values are not exact ambient temperatures
because they may be affected by the close proximity to the head.
11. If the oral thermometer probe is in the CAL jack and its temperature is in the range
of 32C to 42C then the data will be recorded. Typically, this would provide
calibration information of the oral temperature.
12. Asterisks appear in the alarm column next to the data if alarm had gone off during
that particular time period. Multiple asterisks appear for each tenth of a degree
Celsius above the set alarm level. (For example: when the alarm is set to 38.0C, 1
asterisk indicates 38.0C, 2 asterisks indicates 38.1C, etc.)
Low Battery
The battery condition should be checked each time before using the QUESTEMPII.
Pressing the BAT/TEST key will display the actual battery voltage. When the level falls
below 7.5-volts, "Lo" appears in the display indicating that the battery should be
replaced. The unit will continue to function until the battery falls below 7.2-volts.
Print Summary

12 Calibration
QUESTempº II
At that time, the alarm will sound continuously and the unit will no longer read or store
data. If this occurs, turn the unit OFF and replace the battery before its next use.
Under normal use, the QUESTEMPII will function for an addition 8 hours from the time
when the battery voltage first hits its "Lo" condition at 7.5-volts.
An on-board 3-volt lithium battery will retain the memory of the QUESTEMPII even
when the 9-volt battery is removed. This will not, however, power the unit for operation.
Replace dead batteries with 9-volt ALKALINE, type NEDA 1604A or equivalent.
Audible Alarm
The speaker located in the ear assembly will sound under three conditions.
1. When the 10-second-average temperature in the ear canal exceeds the set alarm
level, the speaker will give two pulses every second.
2. When the 10-second-average temperature in the ear canal exceeds 0.5C above
the set alarm level, the speaker will give four pulses every second.
3. When the battery voltage falls below 7.2-volts, the speaker will sound continuously
warning that the unit has stopped reading temperature data and the battery should
be immediately replaced.
Calibration
The purpose of calibration is to compensate for the difference between an individual's
ear and body temperatures. [NOTE: When taking a temperature, the person should be
rested and should not have had anything to eat or drink in the past 15 minutes. The
probe should be kept under the tongue with the mouth closed.] Although typical oral to
ear temperature differentials can be found over a several degree range, each individual's
differential will remain stable provided that the ambient temperature does not change
drastically from the time of calibration.
At the time of calibration, an offset is added to the ear temperature to equate it to the oral
temperature. This offset will remain in effect until modified by the next calibration or until
the unit is reset. The time and amount of offset will be listed on the printout.
Calibration

13 Calibration
QUESTempº II
The calibration procedure should be followed before each use. After the initial
calibration, if the worker's environment changes by more than 10C, then the
QUESTEMPII should be recalibrated in the new environment. Calibration can be done
at any time and will not disturb the data logging in the RUN mode.
Calibration Method
Use this calibration procedure to calibrate the QUESTEMPII by manually entering the
core temperature.
1. Insert the ear sensor and allow 6 - 10 minutes for it to stabilize to the correct
temperature.
2. Turn the unit ON; RESET it to clear old data if desired; and press RUN to record
calibration data.
3. Press CAL once and 'o---' will display. Then go to step 4.
Note: If using a CalProbe1 (no longer available), place under the tongue and
plug it into the CAL jack on the unit. Allow 3-5 minutes to stabilize. Pressing
the CAL once will display and update the oral temperature. Pressing CAL a
second time will blink and update the value of “oral minus ear” in the display.
Press ENTER when the value is stable to complete calibration process.
4. Press CAL a second time and it will blink '36.0' representing the core temperature.
Adjust this value between 36.0 and 39.0°C by pressing the ARROW key until it
displays the core temperature. Then press ENTER to complete the calibration
sequence. 'CAL' will momentarily appear in the display to indicate that the entered
CORE temperature minus the EAR temperature value was obtained and will now be
added as an offset to the EAR temperature.

14 Ear Sensor Use
QUESTempº II
Ear Sensor Use
Ear Sensor Insertion
1) Roll the disposable yellow E.A.R.® foam ear plug, containing a black protruding tube,
back and forth with the fingers until it forms a small crease-free cylinder. See Figures 2
and 3.
Figure 2 Figure 3
2) Using only light pressure to keep the E.A.R.® plug rolled tight, gently slide it over the
sensor of the earmold assembly. The black tube should slide into the earmold leaving
only the yellow foam plug visible. The sensor should fill the black tube of the E.A.R.®
plug with the tip lying flush with, or just inside of, the outer end of the tube.
3) With the E.A.R.® plug still rolled tight, hold on to the blue earmold and quickly insert
the rolled up plug into the ear canal and hold it in place until it expands. The yellow
portion of the earplug should be completely contained within the ear canal without any
danger of hurting the inner ear. Fitting is easier if the outer ear is pulled outward and
upwards during insertion as shown in Figure 3. Once the plug has expanded, pushing or
twisting will not improve its fit therefore, if the initial fit is inadequate, remove the plug
and repeat the process.
Ear Sensor
Use

15 Ear Sensor Use
QUESTempº II
Figure 4
4) Maneuver the ear hanger over the ear. The ear hanger will help to hold the assembly
in place throughout the day.
(This procedure may feel awkward at first but it will become very easy with continued
usages.)
A properly fit E.A.R.® plug will be comfortable and should hold snug and secure in the
ear canal. It also provides good noise attenuation for those who would typically use
hearing protection.
Ear Sensor Removal
To remove the ear assembly after use, simply grab the blue earmold, slide the ear
hanger off of the ear, and pull the assembly out from the ear. If the E.A.R.® plug
separates from the assembly and remains in the ear canal, then simply grab the black
tube and pull it out.
The E.A.R.® earplug can easily be removed from the earmold assembly by gently
holding the tip of the plug and sliding it off. Do not squeeze the middle of the plug to
remove or the sensor may be damaged.
Use care when removing or handling the ear sensor assembly. Do not remove by pulling
on the cable and always be careful when handling the temperature sensor because it
can be damaged if mishandled.

16 Operating
QUESTempº II
E.A.R.® Plug Care
The E.A.R.® foam earplugs can be washed with soap and water and reused or they can
simply be thrown away and replaced. (Remove the E.A.R.® plug from the blue ear mold
prior to washing.)
If the black tube separates from the yellow foam or if the plug does not slide
properly over the temperature sensor, discard the plug and try another.
Operating
1. Insert the ear sensor assembly as described in Section IV and allow 5 minutes for
the temperature to stabilize. [It may be beneficial to run the sensor cable under
clothing or fasten it to keep it from being snagged.]
2. Turn the QUESTEMPII ON. RESET to clear old data if desired. Put the unit in the
RUN mode.
3. Check the battery strength by pressing the BATTERY/TEST key. Replace the
ALKALINE battery if 'Lo' appears in the display.
4. Calibrate the unit following the guidelines in CALIBRATION section, page 12.
5. If your situation requires it, attach the front cover.
6. Clip the QUESTEMPII housing to your belt or pocket and wear it throughout the
work day or as needed.
7. After use, remove the earplug, print out the data if desired, and turn the unit OFF.
Indicators and Action
ALARM - If the alarm activates, indicating that the body temperature has exceeded the
set alarm level, take appropriate measures to allow the body to cool itself and properly
regulate its temperature. Lowering the work load, moving into a cooler environment, and
drinking cool liquids are all methods to help cool the body and avoid heat related injuries.
LOW BATTery - If this indicator comes on, replace the 9-volt ALKALINE battery as soon
as possible.
To preserve battery life, be sure to turn the unit OFF when not in use.
Operating

17 Specifications
QUESTempº II
Specifications
ACCURACY
The QUESTEMPII temperature sensor has an electronic accuracy of better than +/-
0.1C over the temperature range of 32C to 40C. (Body temperature range.)
BATTERY LIFE
Using one 9-volt ALKALINE (type NEDA 1604A) battery, the QUESTEMPII, under
normal usage, should last approximately 60 hours. It will also continue to operate for a
minimum of 8 hours after the LOW BATTery indicator first comes on.
A 3 -volt lithium battery is used as backup power for the real-time clock and the memory.
WORKING TEMPERATURE RANGE
Both the oral probe and aural sensor are meant to operate at body temperature in the
range of 32C to 40C. The unit itself has an operating temperature range of 0C to
70C.
STORAGE
If the unit is to be stored for prolonged periods, the battery should be removed.
OPERATING HUMIDITY
Operate between 0% - 95% humidity (non-condensing).
SIZE
2.5 x 5.1 x 1.0 inches (64 x 130 x 25mm)
WEIGHT
Housing: 10 ounces (283 grams)
Ear Sensor Assembly: 0.15 ounces (4.2 grams)
CONSTRUCTION
The electronics are housed in a rugged cast aluminum case. The ear mold is
constructed from an FDA approved GEON.
Specifications

18 Accessories
QUESTempº II
Accessories
Part Numbers
53-287
Digital oral thermometer
58-453
Replacement earloops (package of 10)
53-288
Sheaths for digital thermometer (package of 100)
58-867
QUESTEMPII serial computer cable (RS232)
58-847
QUESTEMPII serial printer cable
56-904
Carrying case - holds 6 units
56-905
Carrying case - holds 10 units
Warranty & Contact
Customer service
Contacting 3M Detection Solutions
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: 3Mdete[email protected]
Internet: www.3M.com/detection
International customers
Contact your local, factory-authorized distributor from whom the product was
purchased. You can obtain the name and contact information of your local factory-
authorized distributor from 3M by using the e-mail, telephone, or fax information given
under “Contacting 3M Detection Solutions” above.
Service and
Warranty