Honeywell BW MaxXT II User Manual page 9

The combustible sensor is factory calibrated to 50% LEL methane. If monitoring a
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different combustible gas in the % LEL range, calibrate the sensor using the appropriate
gas.
Warning: High off-scale LEL readings may indicate an explosive concentration.
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Only the combustible gas detection portion of this instrument has been assessed for
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performance by CSA International.
For use only in potentially explosive atmospheres where oxygen concentrations do not
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exceed 20.9% (v/v).
Any rapid up-scaling reading followed by a declining or erratic reading may indicate a
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gas concentration beyond upper scale limit, which may be hazardous.
Calibrate only in a safe area that is free of hazardous gas.
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Use only Honeywell approved batteries for the MaxXT II detector. Refer to Replacement
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Parts and Accessories.
Charge the detector before first-time use. Honeywell recommends the detector be
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charged after every workday.
Charge the BW MaxXT II using the recommended charging adapter only. Do not use any
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other charging adapter. Failure to adhere to this precaution can lead to fire and/or
explosion. Read and adhere to all instructions in the charger guide. Failure to do so can
result in fire, electrical shock, personal injury, and/or property damage.
Extended exposure of the BW MaxXT II to certain concentrations of combustible gases
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and air may stress a detector element, which can seriously affect its performance. If an
alarm occurs due to high concentration of combustible gases, recalibration should be
performed, or if needed, the sensor replaced.
Do not test the combustible sensor's response with a butane cigarette lighter; doing so
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will damage the sensor.
Do not expose the detector to electrical shock or severe continuous mechanical shock.
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Do not immerse the detector in liquids.
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The pump (XT-RPUMP-K1) is certified for use with the BW MaxXT IIdetector only.
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Do not attempt to disassemble, adjust, or service the detector unless instructions for that
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procedure are provided in the technical reference guide and/or that part is listed as a
replacement part. Use only Honeywell BW™ MaxXT II Replacement Parts and Accessories.
The detector warranty will be voided if customer, personnel, or third parties damage the
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detector during repair attempts. Non-Honeywell BW™ MaxXT II repair/service attempts
void this warranty.
Warning: DO NOT to use any tool (i.e., metal needle nose pliers) to manipulate the battery
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wires, insulation, or connector. There is a potential to short-circuit the battery wires that
could result in battery damage and injury to the user.
Warning: The lithium battery (MX-BAT01) may present a risk of fire or chemical burn
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hazard if misused. Do not disassemble, heat above 212°F (100°C), or incinerate. Do not
use any other lithium batteries with theBW MaxXT II detector. Use of any other cell can
cause fire and/or explosion. To order and replace the MX-BAT01 battery, refer to
BW MaxXT II 8 User Manual