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NOTE: A slight variation in temperature is often seen from one thermometer reading to another,
even when the vaccine storage unit thermostat is set at a particular temperature. This is
normal. If the thermometer reading does not fluctuate at all over several readings,
temporarily remove the thermometer from the storage unit and place it outside the unit at
room temperature. Check whether the temperature reading rises. If no change in the
temperature reading occurs, the thermometer is faulty and needs to be replaced.
Function Controls:
• MODE/RESET Key: Press ONCE to reset Max/Min temperature record. When the unit is
sounding an alarm, press ONCE to turn off the beeping sound.
• HIGH/LOW Key: Press ONCE to display high alarm setting. Press TWICE to display low alarm
setting. Press THREE TIMES to display current temperature reading.
• ºF/ºC Key: Press this button to alternate the temperature display scale between Fahrenheit (ºF)
and Celsius (ºC).
Battery Installation:
Remove battery compartment cover located on the rear of the unit and remove insulation strip from
battery compartment. Following the polarity (+/-) diagram in the battery compartment, install the
battery. Replace the battery cover. The unit will beep and all segments of the LCD will be activated.
Programming the Alarms:
The thermometer displays the internal temperature of the unit being monitored, as well as the
maximum and minimum temperatures reached. The maximum and minimum readings reflect the
highest and lowest temperatures since the battery was inserted or since the MODE/RESET key was
last pressed. If the temperature rises above or falls below the set temperature range, the alarm will
sound. By default, the high alarm temperature setting is 8°C (46.4°F) and the low alarm temperature
setting is 2°C (35.6°F). To reset these limits, follow these instructions:
NOTE: Set high and low alarm temperature limits above and below the refrigerator/ freezer
operating temperature to prevent false alarms.
• High Alarm Temperature Setting: Press the HIGH/LOW key ONCE, then press MODE/RESET
to enter the High Alarm temperature setting mode. Use the Up and Down arrows to adjust the
temperature accordingly. Press MODE/RESET once again to confirm the setting.
• Low Alarm Temperature Setting: Press the HIGH/LOW key TWICE, then press MODE/RESET
to enter the Low Alarm temperature setting mode. Use the Up and Down arrows to adjust the
temperature accordingly. Press MODE/RESET ONCE to confirm the setting.
• By default, the low and high alarms should be audible. To turn alarms on/off:
• Audible High Alarm Setting: To make sure the high alarm is audible, press HIGH/LOW key
ONCE (to activate HI-SET on the screen). Then press the ALERT ON/OFF key ONCE to
activate the HIGH-ALARM beeping sound. Press again to deactivate.
• Audible Low Alarm Setting: To make sure that the low temperature alarm is audible, press the
HIGH/LOW key TWICE to activate LOW-SET on the screen. Then press the ALERT ON/OFF
key ONCE to activate the LO-ALARM beeping sound. Press again to deactivate.
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