Calibrating the dispenser pressure transducers is done by setting the
Pressure probe calibration points. The following procedure is how to set
these points.
NOTE: The pressure transducers are calibrated at the factory and usually do
not require recalibration.
To set pressure probe calibration points
- Degas the dispenser and close all outlet isolation valves
- Turn on the gas to the dispenser.
- Remove the nozzle from its holster or press the start button, allowing
gas to pass through the dispenser.
- Slowly open the outlet isolation valve and watch as the pressure gauge
begins to rise. Shut the valve when the reading is approximately 10 bar.
- Hang up the nozzle or press the stop button.
- Set the Ua1l (low pressure probe 1 calibration point)to 10. If there
are 2 pressure transducers per side set Ua2l (low pressure probe 2
calibration point) as well
- Remove the nozzle from its holster again or press the start button.
- Increase the gauge pressure to approximately 200 bar.
- Hang up the nozzle or press the stop button.
- Set the Ua1h (high pressure probe 1 calibration point)to 200. If there
are 2 pressure transducers per side set Ua2h (high pressure probe
2 calibration point) as well
- Check current calibrated pressure is the same as the Pressure gauge
Calibrating the Ambient Temperature Sensor involves:
- Comparing the dispensers stated temperature to the actual
temperature.
- Adjusting the ambient temperature reading if it is found to be
incorrect.
To test the sensor accuracy:
Using a calibrated temperature meter, determine the temperature of the
body of the dispenser Ambient temperature sensor.
Access the current dispenser ambient temperature reading.
To adjust the dispenser reading:
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