Despatch Protocol Controller - Manual (Page 10)

4
Status Indicator LEDs
Protocol has seven indicator LEDs that provide the following relevant information to the
user.
Table 3 Protocol Indicator LEDs
LED Function
Power on Lights when the power on pushbutton is pressed.
Heater relay Lights when a mode is ready for operation and the heater on key is pressed.
Soak Deviation Lights when the process temperature is not held within the user-specified soak
deviation limits. The light turns off when the temperature is within the soak
deviation limit.
Over Temp Lights when the process temperature exceeds the high limit value. The over
temperature light remains lit until the Reset is pressed.
Control T/C Error Lights when Lights when Protocol receives a control thermocouple error. the
Reset key clears the error upon corrective action.
Hi-Limit T/C
Error Lights when Protocol receives a hi-limit thermocouple error. The Reset key
clears the error upon corrective action.
The Despatch Protocol temperature controller has been designed for ease of use while
maintaining elaborate and versatile control capabilities.