Helmer Scientific i.Series
®
Ultra-Low Freezer
Service and Maintenance Manual
360173-A/C
22
Power Failure Alarm Test
During a power failure, the power failure alarm activates and the back-up battery provides power to the monitoring system.
Note
Do not switch the back-up battery switch
Off
during the power failure test.
Test the power failure alarm
1. Touch,
i.C³ APPS
,
Settings
,
Alarm Settings
.
2. Touch the minus (-) or plus (+) on the Power Failure spin box to change the value to 0 minutes.
3. Switch AC ON/OFF switch
OFF
. The power failure alarm will activate immediately.
4. Switch AC ON/OFF switch
ON
. The power failure alarm will clear and audible alarm will cease.
5. Touch the minus (-) or plus (+) on the Power Failure spin box to return to the original setting.
Door Open Alarm Test
Test the Door Open (Time) alarm
1. Touch,
i.C³ APPS
,
Settings
,
Alarm Settings
.
2. Touch the minus (-) or plus (+) on the Door Open (Time) spin box to change the value to 0 minutes.
3. Open freezer door. The door open alarm will activate immediately.
4. Close freezer door. The door open alarm will clear and audible alarm will cease.
5. Touch the minus (-) or plus (+) on the Door Open (Time) spin box to return to the original setting.
High Ambient Temperature Alarm Test
Note
Emergency Mode alarm may occur during this test. Turn back-up battery switch and main power switch OFF. After 10 seconds
turn back-up battery switch and main power switch ON to clear Emergency Mode alarm.
Test the High Ambient Temperature Alarm
1. Touch,
i.C³ APPS
,
Settings
,
Alarm Settings
2. Scroll down and record the Ambient Probe High Temp setpoint.
3.
Remove the condenser filter grill.
4. Using a heat gun or similar auxiliary heat source (use low setting if available),
apply short bursts of heat to the ambient temperature probe.
5. Observe the temperature on the i.C
3
display at which the high ambient
temperature alarm activates.
6. The alarm should activate within 2.0 °C of the high alarm setpoint. If the value
is more than 2.0 °C different, contact Helmer Technical Service for
further instruction.
7.
Remove the heat gun and reinstall the condenser filter grill.
