Hach 3654 Portable H2/N2 Analyzer manual Calibrations, Barometric Pressure Sensor Calibration

3654 Portable H2/N2 Analyzer - Calibrations 35 of 66

4Calibrations

4.1 Barometric Pressure Sensor Calibration

You must have access to an accurate barometer to calibrate the instrument's internal barometric pressure sensor. This is done using the PC WIN3654 program.

Choose Troubleshooting, Pressure Calibration and a message will warn that the current calibration will be lost.

Choose OK to continue.

The calibration procedure then displays a Pressure Calibration dialog box (as illustrated in Fig 4-1). The Measured Pressure value shows the current instrument pressure reading.

Fig 4-1:Pressure Calibration Screens 2 & 3

Enter the current atmospheric pressure, in mbars, in the Calibration Pressure entry box. Choose Calibrate to direct the instrument to read and display the Measured Pressure using this calibration value.

Choose Quit when you are satisfied with the pressure calibration to return to normal operation.

Operator Manual ORBISPHERE