Omega Engineering CN 79000 manual

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Note: If both Set Point 1 and Set Point 2 are set for temperature inputs, they must both be set for the same scale. While it is possible to set one input as degrees F and the other degrees C, as there is only one descriptor, one of the displays is likely to be mis-read. If one Set Point is set for process input, you may select to display either the temperature descriptor or neither (nonE).

dPt1 Decimal Point Positioning: Select 0, 0.0, 0.00, or 0.000. On temperature type inputs this will only effect the Process Value, SP1, and InC1. For Current and Voltage Inputs all Menu Items related to the Input will be affected.

0No decimal Point is selected. This is available for all Input Types.

0.0One decimal place is available for Type J, K, E, T, L, RTD’s, Current and Voltage Inputs.

0.00Two decimal places is only available for Current and Voltage Inputs.

0.000 Three decimal places is only available for Current and Voltage inputs.

Int1 Input Fault Timer: Select OFF, 0.1 to 540.0 minutes. When- ever an Input is out of range (UFL or OFL displayed), shorted, or open the timer will start. When the time has elapsed, the instrument will disable the output(s) and display bAd InP. If OFF is selected, the Input Fault Timer will not be recog-

nized (time = infinite).

SEn1 Sensor Rate of Change: Select OFF, 1 to 4000 °F, °C, or counts per 1 second period. This value is usually set to be slightly greater than the fastest process response expected during a 1 second period, but measured for at least 2 seconds. If the process is faster than this setting, the SEn1 bAd error message will appear. The outputs will then be turned off. This function can be used to detect a runaway condition, or speed up detection of an open thermocouple. Use the INDEX & ENTER keys to reset.

SCL1 Scale Low: Select 100 to 9999 counts below SCH1. The total span between SCL1 and SCH1 must be within 11998 counts. Maximum setting range is -1999to 9999 counts. Minimum span is 100 counts. For Current and Voltage inputs, this will set the low range end. Viewable only for Thermocouple and RTD ranges.

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Contents User’s Guide Servicing North America Omega Engineering Contents Model Identification Panel CollarGasket Page Wiring for Optional Inputs and Outputs Wiring for Z1 Input Page Security Level Selection Password TablePage Programming SET Points for Alarm Functions Operation of Self Tune Function Set Point 2 TrackingOperation and Programming of Options Program Setup and OperationFactory Default Procedure Secondary Menu Menu Selections Primary MenuEnd of Secondary Menu when Edit is set to Page Lrn1 Select YES or no Page Page Page Page Page Page Secure Menu End of Secure Menu when Edit is set toPage Page Page Page Page Page Page Page Page Specifications Depth Behind Mounting Surface 111.6 mm Diagnostic Error Messages Page Page FR# Page Shop online at omega.com