MODEL TCL

SECTION 11

 

TROUBLESHOOTING

SECTION 11.

TROUBLESHOOTING

11.1 OVERVIEW

The analyzer continuously monitors itself and the sensor(s) for problems. When the analyzer identifies a problem, the word warning or fault appears intermittently in the lower line of the main display. When the fault or warning message appears, press the DIAG (diagnostic) key for more information. See Section 11.2.

A warning means the instrument or sensor is usable, but steps should be taken as soon as possible to correct the condition causing the warning.

A fault means the measurement is seriously in error and is not to be trusted. A fault condition might also mean that the analyzer has failed. Fault conditions must be corrected immediately. When a fault occurs the analog output goes to 22.00 mA or to the value programmed in Section 7.3.2.

The analyzer also displays warning messages if a calibration is seriously in error. For more information see Section 11.3.

11.2 USING THE DIAGNOSTIC FEATURE

Diagnostic

Faults

Warnings

Sensor 1

Sensor 2

Faults

S1 RTD Open

S2 RTD Open

1.To read diagnostic messages, press DIAG. The screen at left appears. To display fault messages, select Fault. To display Warning messages select warning. To read measurement information about the sensor(s) including raw sensor signal and calibration data, choose the desired sen- sor and press ENTER.

2.If you choose Fault or Warning, a screen like the one shown at left appears. S1 means sensor 1. S2 means sensor 2. For additional trou- bleshooting information, select the desired message and press ENTER. For more information, see Section 11.3.

3. To return to the main display, press MENU then EXIT

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Emerson TCL instruction manual Section Troubleshooting, Overview, Using the Diagnostic Feature, Faults, S1 RTD Open

TCL specifications

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