Honeywell Sensepoint XCD RFD - Page 29

Sensepoint XCD RFD Technical Manual SPXCDHMRFENU Issue 1
29
(SPAN CALIBRATION)
11.The display shows the current calibration span gas concentration while ashing the
‘ ’ icon. Use ‘

’ to change the calibration span gas concentration, and ‘

’ when
required span calibration level is set.
12.The display will show the current gas reading, and the ‘ ’ icon ashes.
13.Connect the regulator to the span gas cylinder.
14.Apply the span gas to the sensor using the Sensepoint XCD Gassing Cap (see
section 4.7 for description). The live gas reading is displayed. When the reading is
stable, use ‘

’ to conrm span calibration.
15.If the sensor has been replaced the following display may be shown.
16.Use ‘

’ to select ‘YES’ if the sensor has been replaced or ‘No’ if it has not been
replaced.
17.If the span calibration is successful the instrument will briey display ‘SPAn PASS’ (if
fails ‘SPAN FAIL’ displayed and returns to conguration mode).
Note: the calibration due warning counter is reset after a successful calibration. See
section 12.3 for further details of setting a calibration due warning.
18.The display alternates between “Purg gAS” and the gas reading to indicate that the
unit is expecting the span gas to be removed from the sensor.