XP Series Personal Gas Detector
14
Important Note for Cl
2
Users:
Honeywell Analytics recommends dedicating a regulator for use with Cl
2
gas to avoid lower calibra-
tion readings due to cross-interference with other gases.
Prior to performing the span calibration with Cl
2
detectors it is recommended that the user purge the
regulator for 5 minutes (300 seconds) with Cl
2
gas to ensure the regulator is properly conditioned.
This should be done any time a significant amount of time has passed since the regulator was last used
(i.e. days).
Carry out the zero calibration procedure as described in Section 12. A span calibration can only be
performed if the zero calibration is successful. At the end of the zero calibration procedure, the On/Off
button must be pressed continuously for 5 seconds while the Test Pass icon ( ) is flashing. If the Menu
Lock feature has been activated then the unit prompts the user to enter the password. If the correct
password is entered then the span gas concentration will be displayed and can be changed with the
Up and Down buttons (refer to Section 22 for the table of span gas concentration ranges for the limits).
Press the On/Off button to select the span gas concentration. Connect the gas cylinder and test adaptor
and apply the gas at 300 ml/min. The detector will count down the appropriate calibration time for the
gas type. When the count down is below 100, the detector will display a ‘C’ (for calibration) in addition
to the count down value. This sequence is shown below:
1. Password
2. SPAN gas . Start Count down
(only in Menu lock
concentration
mode, otherwise skip)
4. End Count down 5. SPAN calibration OK 5-1. SPAN calibration fail
If the span calibration is successful the detector will give 2 beeps, 2 flashes and will display the Test
Pass icon ( ). If the span calibration fails, the detector gives a long beep, long flash, displays the Test
Fail icon ( ), and the calibration remains as it was before the span calibration was attempted. If the
span calibration fails, verify the calibration gas expiration date and concentration, then rerun the span
calibration procedure.
