Watlow MINICHEF 2000 - Manual (Page 40)

Tr o u b l e s h o o t i n g C h a r t
H a r d w a r e & S o f t w a r e S e t u p G u i d e Wa t l o w M I N I C H E F 2 0 0 0 ■ 3 9
• Determine if High or Low Deviation
Alarms are required for channel 1.
If neither are required, access the
[AL``1] parameter and set the
value to disable the deviation
alarms, choosing [`nonE] or
[`Proc]. Refer to programming
guide.
• If Deviation Alarms for channel 1
are required, confirm that the
[ALdL1] parameter is set to the
proper value for the application.
• The Offset parameter can affect the
alarm point. Confirm that the
[OFSt1] parameter is set properly.
• System may require service.
Deviation Alarm indicating a low
temperature condition for channel
1.
• Channel 1 sensor measures a low
temperature that exceeds the
allowable deviation below the pro-
grammed setpoint.
[`LO`1] appears on the
display.
System seems to be under-
heating.
• Determine if High or Low Deviation
Alarms are required for channel 2.
If neither are required, access the
[AL``2] parameter and set the
value to disable the deviation
alarms, choosing [`nonE] or
[`Proc]. Refer to programming
guide.
• If Deviation Alarms for channel 2
are required, confirm that the
[ALdH2] parameter is set to the
proper value for the application.
• The Offset parameter can affect the
alarm point. Confirm that the
[OFSt2] parameter is set properly.
• System may require service.
Deviation Alarm indicating a high
temperature condition for channel
2.
• Channel 2 sensor measures a high
temperature that exceeds the
allowable deviation above the pro-
grammed setpoint.
[`Hi`2] appears on the
display.
System seems to be over-
heating.
• Determine if High or Low Deviation
Alarms are required for channel 1.
If neither are required, access the
[AL``1] parameter and set the
value to disable the deviation
alarms, choosing [`nonE] or
[`Proc]. Refer to programming
guide.
• If Deviation Alarms for channel 1
are required, confirm that the
[ALdH1] parameter is set to the
proper value for the application.
• The Offset parameter can affect the
alarm point. Confirm that the
[OFSt1] parameter is set properly.
• System may require service.
Deviation Alarm indicating a high
temperature condition for channel
1.
• Channel 1 sensor measures a high
temperature that exceeds the
allowable deviation above the pro-
grammed setpoint.
[`Hi`1] appears on the
display.
System seems to be over-
heating.
Possible Solutions Possible Causes Symptom/Indication