Helmer Scientific i.Series
®
Ultra-Low Freezer
Service and Maintenance Manual
360173-A/C
14
Device Control Settings
Device control settings are programmed at the factory. Setpoints can be viewed and changed through the i.C³ monitoring and control
system. To view the temperature setpoint, touch
i.C³ APPS
,
Settings
,
Device Control Settings
.
Device Control Settings screen
Table 3. Setpoints
Setting
Initial Factory Value
Temperature Setpoint
-80.0 °C
Delay on Start-Up
1 minute
Temperature Setpoint
The setpoint is the temperature at which the unit operates.
Notes
•
If the Settings screen is password protected enter appropriate password. If viewing for the first time, enter the factory
default password of “1234”.
• Change the setpoint if your organization requires a chamber temperature other than -80.0 °C.
• Temperature Setpoint can be adjusted through the main Settings screen and Device Control Settings.
Change Temperature Setpoint
1. Touch
i.C³ APPS
,
Settings
.
2. Enter the Settings password.
3. Touch minus (
–)
or plus (
+)
on the
Temperature Setpoint
spin box.
Delay on Start-Up
Compressor start-up is delayed to allow the i.C
3
monitoring and control system to start first.
User Configurable Alarm Settings
The following alarm settings may be changed by the operator. The setpoint for temperature alarms may be changed (where applicable), as
well as the time delay between when the alarm condition commences and when the visual and audible alarms are initiated.
Table 4. User Configurable Alarms
Setting
Description
Default Setpoint
Default Time Delay
High Temperature
High temperature at which alarm condition occurs
-70.0 °C
0 minutes
Low Temperature
Low temperature at which alarm condition occurs
-90.0 °C
0 minutes
Power Failure
Time after power failure occurs until alarm sounds
n/a
1 minute
Probe Failure
Time after probe failure occurs until alarm sounds
n/a
0 minutes
Door Open (Time)
Time door remains open until alarm sounds
n/a
1 minute
High Ambient
High temperature at which alarm condition occurs
30.0 °C
15 minutes
Low Ambient
Low temperature at which alarm condition occurs
15.0 °C
15 minutes
