User Manual

ImpactXtreme Operator’s Manual 8 March 2013
Important Safety Information: Read First
The ImpactXtreme gas detector (‘the detector’) is a personal safety device that is designed to
warn of hazardous gas levels above user-defined set points. It is your responsibility to respond
properly to the alarms.
Use the detector only as specified in the ImpactXtreme Operator Manual and ImpactXtreme
Technical Reference Guide, otherwise protection provided by the detector may be impaired.
Read and understand the following warnings and cautions before using the detector.

Warning: Substitution of components may impair Intrinsic Safety

Before using the detector, refer to Sensor Poisons and Contaminants.

Protect the combustible sensor from exposure to lead compounds, silicones, and chlorinated
hydrocarbons. Although organic vapors (such as leaded gasoline and halogenated
hydrocarbons) may temporarily inhibit sensor performance, in most cases the sensor will
recover after calibration.

Caution: For safety reasons, this equipment must be operated and serviced by qualified
personnel only. Read and understand the technical reference manual completely before
operating or servicing.

For detectors using the rechargeable battery, charge the detector before first-time use. BW
Technologies by Honeywell recommends the detector be charged after every workday.

Calibrate the detector before first-time use and then on a regular schedule, depending on
use and sensor exposure to poisons and contaminants. BW Technologies by Honeywell
recommends to calibrate sensors regularly and at least once every 180 days (6 months).

Calibrate only in a normal atmosphere (20.9% O
2
) that is free of hazardous gas.

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.

Only the combustible gas detection portion of this detector has been assessed for
performance by CSA International.

BW Technologies by Honeywell recommends to check the combustible sensor with a known
concentration of calibration gas after any exposure to contaminants/poisons such as sulfur
compounds, silicon vapors, halogenated compounds, etc.

BW Technologies by Honeywell 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, visual, and vibrator
alarms are activated. Calibrate if the readings are not within the specified limits.

Caution: High off-scale LEL readings may indicate an explosive concentration.

Any rapid upscaling reading followed by a declining or erratic reading may indicate a gas
concentration beyond upper scale limit, which can be hazardous.

Caution: Catalytic bead combustible sensor readings are not reliable in atmospheres with
less than 12% (v/v) O
2
.

Caution: IR combustible sensor is not capable of detecting H
2
.

For use only in potentially explosive atmospheres where oxygen concentrations do not
exceed 20.9% (v/v).

Extended exposure of the detector to certain concentrations of combustible gases and air
may stress a detector component that can seriously affect its performance. If an alarm
occurs due to high concentration of combustible gases, calibrate the detector. If necessary,
replace the sensor.

Warning: The lithium battery (IX-BAT-R1) may present a risk of fire or chemical burn hazard
if misused. Do not disassemble, heat above 100
°
C (212
°
F), or incinerate.