Honeywell Sensepoint XCD RFD Technical Handbook page 30

Sensepoint XCD RFD Technical Manual
(ZERO CALIBRATION)
When calibrating the Sensepoint XCD Flammable IR or CO
the zero calibration is always followed by a span calibration. The zero calibration must never
1. If the ambient air is NOT considered reliable to use to set the ZERO, then remove
the weather protection and fit the Gassing Cap accessory (see Section 4.3) onto the
sensor and apply a clean source of zero gas or compressed air.
2. To access the calibration menu, hold the end of the magnet over the switch located
at the top center of the detector display (
3. The display will indicate the first configuration mode menu 'SEt CAL'.
4. Put the magnet over the '
5. The display will show the current gas reading, and the ' ' icon flashes.
6. When the zero gas reading is stable use '
7. If successful the display shows 'ZEro PASS' (if not successful, the display shows 'ZEro
FAIL' and returns to configuration mode).
8. If using zero-air, turn it off. Zeroing is complete and saved.
9. The display shows 'SPAn' with 'YES' flashing.
10.If span calibration is required use '
not required, use '
When calibrating the Flammable IR or CO
WARNING
be done alone.
' switch again and move to enter the Calibration menu.

' proceed to the next step. If span calibration is

' to select 'No' and '

WARNING
IR sensors, it is essential that the span calibration
2
is done after a zero calibration.
IR sensors, it is essential that
2
) for at least 3 seconds and then remove.

' to confirm zero calibration.

' to return to configuration mode.

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SPXCDHMRFEN Issue 4_08-2016