Tuttnauer 2540 EHS, Руководство техника

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94
Corrections
1
3
.1
Unplug and replug in the connector making sure good contact is made
13.2
Fix the connections
13.3
If the resistance does not correlate with the temperature, replace the temperature sensor.
13.4
If the display does not match the selections on the PT100 simulator then calibrate the temp. If unsuccessful then replace the ANL-T2
14.1
Unplug and replug in the connector making sure good contact is made
14.2
Fix the connections
14.3
If the resistance does not correlate with the temperature, replace the temperature sensor.
Possible cause check-up and tests
13.1
Check that the connector of the sensor is properly plugged into JP2 on the ANL- T2 board.
13.2
Check that the wires and connector are in good condition.
13.3
Disconnect the PT100 from the connector and check its resistance. At 32ºF the resistance across the two wires of the sensor should read 100
Ω
. The resistance
at higher temperature can be calculated by adding 0.2 ohms for each degree F.
13.4
Plug the PT100 simulator into the JP2 connector and try the various temperature selections.
14.1
Check that the connector of the sensor is properly plugged into JP2 on the ANL- T2 board.
14.2
Check that the wires and connector are in good condition.
14.3
Disconnect the PT100 from the connector and check its resistance. At 32ºF the resistance across the two wires of the sensor should read 100 ohms. The resistance at higher temperature can be calculated by adding 0.2 ohms for each degree F.
10. TROUBLESHOOTING
(cont.)
10.4
In Process Malfunction
(cont.)
Symptom
13.
The displayed temperature permanently indicates a temperature higher than 284ºF or T1CUT is displayed.
14.
The displayed temperature permanently indicates a temperature less than 54
º
F,
although chamber temperature is high.