Honeywell GasAlert Max XT II User Manual page 15

• Warning: Substitution of components may impair Intrinsic Safety.
• Caution: For safety reasons, this equipment must be operated and serviced by qualified personnel only. Read and
understand the technical reference guide completely before operating or servicing.
• Do not use the detector if it is damaged. Inspect the detector before using. Look for cracks and/or missing parts.
• If the detector is damaged or parts are missing, contact
• Use only sensor(s) that are specifically designed for the GasAlertMaxXT II model. Refer to
Accessories.
• Calibrate the detector before first-time use and then on a regular schedule, depending on use and sensor exposure to
poisons and contaminants. Sensors must be calibrated regularly and at least once every 180 days (6 months).
• BW recommends to bump test the sensors, before each day's use, to confirm their ability to respond to gas by
exposing the detector to a gas concentration that exceeds the alarm setpoints. Manually verify that the audible and
visual alarms are activated. Calibrate if the readings are not within the specified limits.
• Protect the combustible sensor from exposure to lead compounds, silicones, and chlorinated hydrocarbons.
Although certain organic vapors (such as leaded gasoline and halogenated hydrocarbons) may temporarily inhibit
sensor performance, in most cases, the sensor will recover after calibration.
• BW recommends the combustible sensor be checked with a known concentration of calibration gas after any known
exposure to catalyst contaminants/poisons (sulfur compounds, silicon vapors, halogenated compounds, etc).
• The combustible sensor is factory calibrated to 50% LEL methane. If monitoring a 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.
• Only the combustible gas detection portion of this instrument has been assessed for performance by CSA
International.
• For use only in potentially explosive atmospheres where oxygen concentrations do not exceed 20.9% (v/v).
• Any rapid up-scaling reading followed by a declining or erratic reading may indicate a gas concentration beyond
upper scale limit, which may be hazardous.
• Calibrate only in a safe area that is free of hazardous gas.
aCautions
BW Technologies by Honeywell
GasAlertMaxXT II
Safety Information - Read First
immediately.
Replacement Parts and
3