MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 13 05/03/30
77
Thomson Technology
NOTE:
To accurately calibrate the MEC 20’s
temperature sensor, an external
temporary engine mounted temperature
gauge is required. The external
temperature gauge should be connected
as close as possible to the temperature
sender for the MEC 20.
The calibration procedure is to be done only at a single point, which is the normal
operating temperature of the engine.
Connect a temporary engine mounted temperature gauge of suitable accuracy
and start the engine. Once the engine reaches normal operating temperature,
enter the programming mode and scroll to the “Engine Temperature Offset”
calibration point.
Use the INCREMENT or DECREMENT push-buttons to adjust the correction
factor number while observing the displayed temperature on the MEC 20. Adjust
the correction factor number to obtain the identical temperature reading as
measured with the external temperature gauge.
With the correct temperature displayed, press the “enter” push-button to accept
the correction factor number. Record the correction factor number on the MEC 20
programming sheet for future reference if required.
10.6.10. PRESSURE CALIBRATION PROCEDURE
Before the equipment is put into final operating service, the engine pressure
analog circuit must be field calibrated to meet the performance accuracy as
specified, to ensure correct operation. The engine pressure analog circuit must
be calibrated with the engine pressure sender supplied with the controller and
mounted on the engine.
Summary of Contents for MEC 20
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