1-360008/G
23
Cannot change controller
values
- Controller is locked out
- Refer to "Setting the Lockout
Function"
Audible alarm not
sounding
- Faulty connections
- Verify proper line connections
- Faulty controller
- Verify that High Alarm Indicator
light is operating
- Verify voltage from the alarm
outputs on the controller to circuit
board
- Replace controller as needed
- Faulty circuit board
- Verify voltage from the alarm
outputs on the controller to circuit
board
- Verify DC voltage to the alarm
- Replace circuit board as needed
- Faulty alarm
- Replace alarm as needed
Alarm not activating at
high alarm setting
- Incorrect alarm function
value
- Verify that the desired high alarm
temperature value is correctly
inputted into the controller Refer to
“Setting the High Alarm”
- Calibrate controller
- Refer to "Calibration of Temperature
Controller"
- Temperature & Alarm
settings are too close to each
other.
- Adjust the settings so that there is a
minimum 0.5 to 1.0
ºC
range
between the Temperature & alarm
setting.
Alarm sounding after
thawing of plasma
- Adjust controller ramping
speed
- Increase the "dE" controller program
value by “0.20” increments until the
temperature over-shooting stops.
Displays “Er 1”
- Reversed sensor connections - Change the sensor leads on terminals
1 & 2.
Displays “Er 2” or “Er 3”
- Sensor type mismatch
- Verify the “In” value reads “rt.d”
