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18. Accuracy Statement
To achieve optimal accuracy, the detector should be periodically supplied with a known concentration test
gas, and if the readings are outside of 15% of the applied gas concentration, a span calibration should
be performed, under conditions of standard temperature (15°C to 25°C), humidity and pressure.
Poisons should not affect the accuracy of the XP but certain compounds can block the gas access port
of the sensor, such as silicone oils, giving a lower than expected reading.
19. Replacing the Battery or Sensor
The XP battery and sensor can be replaced (see Section 20, Warnings). The following items are
needed:
•
Replacement battery Energizer
Neotronics P/N: 0140-0003)
•
Replacement sensor filter (Lumidor P/N: MiniMAX-XP-07 or Neotronics P/N: 2566-0249)
•
Crosshead (Phillips) screwdriver
•
Replacement sensor: (See Section 23)
Use only the sensor specifically designed for the XP. Otherwise the detector will not detect the target
gas. Full disassembly is not necessary if only the battery needs replacement.
Carry out the following procedure in a safe area:
1.
Turn the detector off.
2.
See illustration on page 24 on how to replace the battery or sensor.
3.
After replacement, switch on the XP and perform a self-test, to ensure that the display and electronics
are operating correctly, and perform a zero calibration. (If the detector does not turn on after battery
replacement, check the polarity is correct, as indicated.)
4.
After replacing the sensor, calibrate the XP.
Note:
Dispose of battery according to local or national regulations.
XP Series Personal Gas Detector
CR2 or Sanyo CR2 only (Lumidor P/N: MiniMAX-XP-BATT or
®
2
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