Despatch RAD1-42-2E with Protocol Plus - Manual (Page 50)

42
Error Messages and Alarms
The Alarm Status Hi-limit LED is flashing. This indicates a problem with the
thermocouple, or the Hi-limit setpoint has been exceeded. Once the problem has
corrected, press the Reset pushbutton.
The Alarm Status Soak LED is flashing. This indicates that the oven temperature has
not entered or dropped out of the soak band and the soak timer has stopped.
The top LED Display reads OPEN and the lower LCD display reads CONTROL SENS
ERR. This indicates that the Control thermocouple is disconnected or broken. Repair
or replace the thermocouple.
The lower LCD display reads HI-LIM SENS ERR. This indicates that the Hi-limit
thermocouple is disconnected or broken. Repair or replace the thermocouple.
The lower LCD display reads HIGH LIMIT ALARM. This indicates that the Hi-limit
temperature setpoint has been exceeded. Determine if the setting is set too close to the
setpoint, the SSR is defective, or the calibration is incorrect.
Note: The lower LCD display intermittently reads HL Temp. This is not an error
message, but the Hi-limit thermocouple temperature reading.