Calibration Handbook
143Sensepoint XCD-RTD
Zero Pot
Span Pot
Non-Oxygen Oxygen
Zero Pot
Span Pot
Twin Posts
Sensepoint Toxic Sensor Zero and Span potentiometer
NOTE:
potentiometer.
8. When the zero gas reading is stable use ‘✓’ to confirm zero calibration.
9. If using zero-air, turn it off. Zeroing is complete and saved.
10. The display shows ‘SPAn’ with ‘YES’ flashing.
11. If span calibration is required use ‘✓’ proceed to the next step. If span calibration is not required, use ‘TS
to select ‘No’ and ‘✓’ to return to configuration mode.
Span Calibration
12. The display shows the current calibration span gas concentration while flashing the ‘ ’icon. Use ‘TS’ to
change the calibration span gas concentration, and ‘✓’ when required span calibration level is set.
13. The display will show the current gas reading, and the ‘ ’ icon flashes.
NOTE:
calibration.
14. Connect the regulator to the span gas cylinder. Apply gas at a flow rate of 1 litre per minute for the
recommended application time.
15. Apply the span gas to the sensor using the Sensepoint Gassing Cap. The live gas reading is displayed.
Observe the Span reading on the XCD RTD display. If it shows a stable reading of span gas “250” there
is no need to carry out any further adjustment. If not, it is necessary to adjust the sensor set up follow
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