Page 201 - Gas Detection Systems Training Manual

“Calibration Function” panel. When you are satisfied with the level for establishing the zero reference point (Refer to the SEC 3000 Sensor Documentation), press the “Zero Now” button in the “Calibration Function” panel. The Status panel will display the progress information. Press the “Main Screen” button to return to normal operation.
If any error occurs during the calibration process, the error message and condition will be displayed in the Status panel. Refer to the SEC 3000 Sensor documentation for further details on how to correct the problem.
6.1.3 Span Calibration Procedure
As described previously in section 6.1.2, it is advised to press the “Do Not Remove Screen” to prevent screen timeout while watching the Gas level reported from the sensor above the “Calibration Function” panel. See the SEC 3000 Sensor documentation for detailed information regarding the Span Calibration process. The SEC 3500 OI merely facilitates the process through the SEC 3100 Digital Gas Transmitter.
In general though, once the sensor has been properly “Zero Calibrated”, and the proper Calibration Value has been stored in the sensor (see section 6.1.1 previously) representing the Calibration Gas you are about to use in this Span Calibration operation, then it is time to apply the calibration gas to the sensor.
While monitoring the Gas Level reported by the sensor above the “Calibration Function” panel, press the “Span Now” button as soon as the necessary value is achieved. The automated Span Calibration now takes control and the progress information is updated in the Status panel. Once the calibration process is complete, the automated procedure awaits full purging of the Calibration Gas from the sensor, indicated in the Status panel and the current Gas level displayed above the “Calibration Function” panel. When the Calibration Gas is purged and the process completes successfully, you may press the “Main Screen” button to return to normal operation.
If any error occurs during the calibration process, the error message and condition will be displayed in the Status panel. Refer to the SEC 3000 Sensor documentation for further details on how to correct the problem.
Sensor Electronics Corporation 5500 Lincoln Drive Minneapolis, Minnesota 55436 September 29th, 2006
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SEC 3500 OI Supervisor Operator’s Manual Version 2.1.0095