ThermoWorks ThermaGuard – 101 Fridge and Freezer Thermometers Instruction Manual
- June 5, 2024
- ThermoWorks
Table of Contents
ThermaGuard
Fridge/Freezer
Thermometers
Operating Instructions
INSTRUMENT OPERATION – The instrument continuously displays and measures
temperature. ThermaGuard incorporates fixed internal/external sealed
thermistors for slow-moving, high accuracy applications.
The normal display for the instrument is to show the probe temperature and the
MIN/MAX readings for the selected probe.
FAULTY PROBE – If the probe has developed an ‘Open Circuit’ fault the
instrument will display ‘Err’.
SENSORS – The LCD displays one sensor at a time. When in the normal
display, press MODE to alternate between sensors. Sensor 1 is the upper probe
(or internal Sensor) and Sensor 2 is the lower probe, as noted on the rear
label. If the measured temperature exceeds the instrument’s temperature range
’Err’ will be displayed.
°C/°F – When in normal display press and hold the SET button for 5 seconds to
change between °C and° F.
MIN/MAX – The MIN/MAX temperatures are displayed in the lower sections of
the LCD. Press and hold MODE for 3 seconds to reset the readings for the
selected probe, ‘art’ will be displayed. The MIN/ MAX readings are not
retained when the batteries are replaced.
SETTING ALARMS – Press ALARM to display the Lo/Hi alarm levels, hold SET
for 3 seconds to enter alarm set-up. ‘SET’ will be displayed with ‘Lo’
flashing. Use the Up/Down arrows to adjust the alarm, then press SET to save.
Repeat the steps to set up the ‘Hi’ alarm. Press SET to save and exit alarm
set-up. To set the alarm levels for the other sensor, change the displayed
sensor and repeat the alarm set-up procedure.
ALARMS – Press ALARM and the Lo/Hi alarm levels will be displayed instead
of MIN/MAX. Press ALARM again to return, alternatively, it will return back to
normal display after 10 seconds.
If an alarm is triggered, the alarm and the alarm symbol will flash, as well
as an audible alarm, unless muted.
Press any button to silence the alarm; the LCD will continue to flash until it
comes out of the alarm.
ALARM VOLUME – When in normal display press and hold ALARM for 5 seconds
to mute/un-mute the alarm volume. The alarm symbol and ON/OFF will be
displayed.
CAL CHECK – To check the accuracy of the thermometer’s electronics, while
in normal display press and hold the ALARM & SET buttons for 3 seconds, the
unit will display 32°F.
BATTERY REPLACEMENT – The instrument displays a battery symbol which will
warn you of half and low battery, at which point the batteries should be
changed.
You will require a flat-headed screwdriver. Place the instrument display down
on a solid surface, unscrew and remove the battery cover on the rear of the
instrument. Remove batteries, disposing of them appropriately. Fit 2x AA
batteries, noting the polarities marked on the plastic. Replace the battery
cover and tighten the screw, do not use excessive force. The instrument will
then start automatically.
WARNING – IPA and other solvents may cause damage to the case and screen of
this instrument.
GUARANTEE – This instrument carries a two-year warranty against defects in
either components or workmanship. During this period, products that prove to
be defective will, at the discretion of ThermoWorks, be either repaired or
replaced without charge. This warranty does not apply to probes, where a six-
month period is offered. Full details of liability are available within
ThermoWorks’ Terms & Conditions of Sale at
www.thermoworks.com/ product-warranty.
MODEL
ThermaGuard – 101
ThermaGuard – 102
ThermaGuard Vaccine Kit| ORDER CODE
226-511
226-512
891-912
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SPECIFICATIONS
Internal Range
Probe Range
Accuracy
Display Update
Probe
Resolution
Units
Water Resistance
Battery
Operating Range
Display
Dimensions
Weight
Certificate| –4 to 122°F (–20 to 50°C)
–40 to 122°F (–40 to 50°C)
±0.7°F (±0.4°C)
1 second
Thermistor
0.1°
°C/°F switchable
IP54
2 x 1.5 volt AA, 25,000 hours continuous use,
3 years typical
–4 to 122°F (–20 to 50°C)
1.85 H x 1.85 W inches (47 H x 47 W mm)
3.77 H x 2.85 W x 1.14 D inches
(96 H x 72.5 W x 29 D mm)
5.8oz. (165g)
Includes calibration certificate
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ACCESSORIES/RELATED ITEMS
ThermoWorks, Inc.
Utah, U.S.A.
Ph: 801-756-7705 Fax:
801-756-8948
www.thermoworks.com
Made in the UK