Helmer Scientific i.Series
®
and Horizon Series
™
Refrigerator - Pass-Thru
Service and Maintenance Manual
360429/A
25
Manual Chamber Alarm Test
NOTICE
• Perform the low alarm test before the high alarm test to control the temperature more closely and complete testing
more quickly.
• Before testing alarms, protect items in the unit from extended exposure to adverse temperature.
• Temperature probes are fragile; handle with care.
Test the Low Alarm:
1. Identify setting for low alarm setpoint.
2. Remove primary monitor probe from bottle or ballast.
3.
Immerse probe in a glass filled with water that is approximately 4 °C.
4. Slowly add crushed ice to lower temperature.
5. When temperature reaches low alarm setting, an alarm will activate.
Test the High Alarm:
1. Identify setting for high alarm setpoint.
2.
Immerse probe in a glass filled with water that is approximately 4 °C.
3. Slowly add warm water to raise temperature.
4. When temperature reaches high alarm setting, an alarm will activate.
5. Remove probe from warm water.
6. Place primary monitor probe in probe bottle, immersing at least 2” (50 mm), or place in ballast and secure with
thumbscrew taking care not to overtighten.
Power Failure Alarm Test
Note
During a power failure, the power failure alarm sounds and the battery provides power to the monitoring system and
optional i.Lock interlock.
Test Power Failure Alarm
1. Change Power Failure delay setting to 0 minutes by touching
Home
,
Settings
.
2. Enter Settings password (default password is “1234”).
3. Touch
Alarm Settings
, then touch (
+)
or (
–
) on Power Failure spin box to change value to 0.
4. Switch AC power switch OFF. Power Failure alarm will activate immediately.
5. Switch AC power switch ON. Power Failure alarm will clear and audible alarm will cease.
6. Change Power Failure time delay to original setting.
Door Open Alarm Test
1. Change Door Open (Time) delay setting to 0 minutes by touching
Home
,
Settings
,
2. Enter Settings password (default password is “1234”).
3. Touch
Alarm Settings
, then touch (
+)
or (
–)
on Door Open (Time) spin box to change value to 0.
4. Open door. Alarm will activate immediately.
5. Close door. Alarm will clear, and audible alarm will cease.
6. Change Door Open (Time) setting to original setting.
i.Series
