Operation | 3000ZA | |
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CELL FAIL/ ZERO HIGH
Before replacing the cell:
a.Check your span gas to make sure it is within specifications.
b.Check for leaks
If there are no leaks and the span gas is within specification, replace the cell as described in chapter 5, Maintenance.
4.4.2 Span Cal
The Span button on the front panel is used to span calibrate the analyzer. Span calibration can be performed using the automatic mode, where an internal algorithm compares consecutive readings from the sensor to determine when the output matches the span gas concentration. Span calibration can also be performed in manual mode, where the operator determines when the span concentration reading is acceptable and manually exits the function.
4.4.2.1AUTO MODE SPANNING
Press Span to enter the span function. The screen that appears allows you to select whether the span calibration is to be performed automatically or manually. Use the __ arrow keys to toggle between AUTO and MAN span settling. Stop when AUTO appears, blinking, on the display.
Span: Settling: AUTO
<ENT> For Next
Press Enter to move to the next screen.
Calib. Holding time
Cal hold: 5 min
This menu allows the operator to set the time the analyzer should be held in the AUTO span mode, after the readings of the analyzer settle. Five minutes is the default, but it could be adjusted anywhere from 1 to 60 minutes by using the __ keys.
Press Enter to move to the next screen.
Span Val: 000008.00 <ENT>Span <UP>Mod #
Teledyne Analytical Instruments | 42 |