Watlow SD Series User Manual page 78

Pid controller/pid profiling controller
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Indication
Input Error
[Er; I n]
Ambient Temperature
[Er; A b]
Error
Checksum Error
[Er; C S]
Wat lo w Se rie s S D
Wat lo w Se rie s S D
Troubleshooting
Error Messages
Probable Cause
The sensor may be improperly wired.
Sensor wiring may be reversed, shorted or
open.
The input may be set to the wrong sensor or
the controller may not be calibrated.
Calibration may have been corrupted.
Ambient temperature may be too hot or too
cold.
Calibration may be corrupted.
Settings may have changed unexpectedly.
Check sensor connections.
Check sensor connections and sensor wiring.
Change Sensor Type
match the sensor hardware.
Restore factory calibration.
Verify that the temperature surrounding the
controller is -18 to 65°C (0 to 149°F).
Restore factory calibration.
Press the Infinity Key
Verify settings. If error message persists,
contact the factory.
76
76
Corrective Action
(Setup Page) to
[`Sen]
to clear the error.
ˆ
Chapter 12 F e a tur e s
Chapter 1 Ov e r v i ew

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