Honeywell Sensepoint XCD RTD, Technical Manual

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Sensepoint XCD RTD Technical Manual SPXCDHMRTEN Issue 1
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Note: Please refer to Section 3. (page 28) of Sensepoint Technical Manual MAN0514
for the detail procedure on how to adjust the Zero and Span potentiometer.
8. When the zero gas reading is stable use ‘

’ to confirm zero calibration.
9. If successful the display shows ‘ZEro PASS’ (if not successful, the display shows ‘ZEro
FAIL’ and returns to configuration mode).
10. If using zero-air, turn it off. Zeroing is complete and saved.
11. The display shows ‘SPAn’ with ‘YES’ flashing.
12. If span calibration is required use ‘

’ proceed to the next step. If span calibration
is not required, use ‘

’ to select ‘No’ and ‘

’ to return to configuration mode.
(SPAN CALIBRATION)
13. The display shows the current calibration span gas concentration while flashing the
‘ ’ icon. Use ‘  ’ to change the calibration span gas concentration, and ‘

’ when
required span calibration level is set.
14. The display will show the current gas reading, and the ‘ ’ icon flashes.
15. Connect the regulator to the span gas cylinder. Apply gas at a flow rate of 1liter per
minute for the recommended application time. (See Table 6).
Note: This example assumes a 250ppm span gas for a 0-500ppm CO range for the
whole procedure of the calibration.
16. 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. If the reading is around
span gas concentration, there is no need to carry out any Hardware adjustment. Skip
the next step.
17. Adjust the span potentiometer through the Gassing Cap access Holes (See
Diagram 15) to obtain a span gas concentration indication.