Helmer Scientific i.Series
®
and Horizon Series
™
Freezer - Undercounter
Service and Maintenance Manual
360417/A
27
4.1
Alarm Tests
Test alarms to ensure they are working correctly. The freezer has alarms for chamber temperature, compressor temperature, power
failure, probe failure, and door open (time).
Automatic Chamber Temperature Alarm Test
>
Temperature Alarm Test screen
When performing an automatic temperature alarm test, the Peltier device heats or cools the primary monitor probe until the
high or low alarm setpoint is reached. An event is added to the Event Log to indicate a temperature alarm was activated.
The Alarm Test icon is displayed on the Temperature Graph to indicate the temperature alarm was test-induced.
Test the Low Alarm:
1. Identify the current setting for the low alarm setpoint.
2. Touch
i.C³ APPS
,
Temperature Alarm Test
.
3. Touch
Low Alarm Test
.
4. “Peltier Test Probe Cooling” message appears.
5. When the displayed temperature reaches the alarm setpoint, an
alarm is activated.
6. When completed, “Test Complete” appears.
7. Touch
i.C³ APPS
,
Information Logs
,
Event Log
. Touch the event
to view event details.
8. Observe the temperature at the time of the low temperature alarm
event. Compare this to the alarm setpoint.
Test the High Alarm:
1. Identify the current setting for the high alarm setpoint.
2. Touch
i.C³ APPS
,
Temperature Alarm Test
.
3. Touch
High Alarm Test
.
4. “Peltier Test Probe Warming” message appears.
5. When the displayed temperature reaches the alarm setpoint, the
temperature reading turns red.
6. When completed, “Test Complete” appears.
7. Touch
i.C³ APPS
,
Information Logs
,
Event Log
. Touch the event
to view event details.
8. Observe the temperature at the time of the high temperature alarm
event. Compare this to the alarm setpoint.
Cancel the Test:
1. Touch
Cancel Test
icon to end the alarm test.
“Test Stopped”
is displayed in the Test Status section of the display.
Note
When cancelling an automatic test, the message indicating the test is in progress clears immediately. If a setpoint was
reached before the test was cancelled, the alarm activates and clears as described previously.
Notes
• Test can be aborted by touching
Cancel Test
.
• Test is only applicable to the primary monitor probe.
•
Test takes less than five minutes.
• If the temperature alarm test does not complete successfully,
restart the i.C³ monitoring system.
i.Series
