BW Technologies GasAlertMax XT II Instruction Manual

1, 2, 3, and 4-Gas Detector

Operator’s Manual

BW Technologies LP (BW) warrants the product to be free from defects in material and workmanship under normal use and service for a period of

Limited Warranty and Limitation Liability

two years, beginning on the date of shipment to the buyer. This warranty extends only to the sale of new and unused products to the original buyer.
BW’s warranty obligation is limited, at BW’s option, to refund of the purchase price, repair or replacement of a defective product that is returned to
a BW authorized service center within the warranty period. In no event shall BW’s liability hereunder exceed the purchase price actually paid by the
buyer for the Product.
This warranty does not include:

a) fuses, disposable batteries or the routine replacement of parts due to the normal wear and tear of the product arising from use;
b) any product which in BW’s opinion, has been misused, altered, neglected or damaged, by accident or abnormal conditions of operation,

handling or use;

c) any damage or defects attributable to repair of the product by any person other than an authorized dealer, or the installation of unapproved

parts on the product; or

The obligations set forth in this warranty are conditional on:

a) proper storage, installation, calibration, use, maintenance and compliance with the product manual instructions and any other applicable

recommendations of BW;

b) the buyer promptly notifying BW of any defect and, if required, promptly making the product available for correction. No goods shall be

returned to BW until receipt by the buyer of shipping instructions from BW; and

c) the right of BW to require that the buyer provide proof of purchase such as the original invoice, bill of sale or packing slip to establish that the

product is within the warranty period.

THE BUYER AGREES THAT THIS WARRANTY IS THE BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. BW SHALL NOT BE LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL, OR BASED ON CONTRACT, TORT OR RELIANCE OR ANY OTHER THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential
damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this warranty is held invalid or
unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.

Contacting BW Technologies by Honeywell

USA: 1-888-749-8878 Canada: 1-800-663-4164
Europe: [phone] Other countries: [phone]

Email us at: [e-mail]
Visit BW Technologies by Honeywell’s website at: www.gasmonitors.com

GasAlertMax XT II

Introduction

The operator’s manual provides basic information to operate

the GasAlertMax XT II gas detector. For complete operating

instructions, refer to the GasAlertMax XT II Technical Reference

Guide provided on the CD-ROM. The GasAlertMax XT II gas

detector (“the detector”) is designed to warn of hazardous gas

levels above user-defined alarm setpoints.

The detector is a personal safety device. It is your responsibility

to respond properly to the alarm.

Note

The detector is shipped with English as the default
displayed language. Additional languages provided
are French, German, Spanish, and Portuguese. The
screens for the additional languages are displayed on
the detector and in the corresponding operator’s
manual.

Zeroing the Sensors

To zero the sensors, refer to steps #1-3 in Calibration on
page 7.

Safety Information - Read First

Use the detector only as specified in this operator’s manual and

the technical reference guide, otherwise the protection provided

by the detector may be impaired.

Read the following Cautions before using the detector.

a

Cautions

• 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.

• Charge the detector before first-time use. BW 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. The sensors must be
calibrated regularly and at least once every 180 days
(6 months).

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GasAlertMax XT II

Operator’s Manual

• Calibrate only in a safe area that is free of hazardous gas in
an atmosphere of 20.9 % oxygen.

• 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
instrument has been assessed for performance by CSA
International.

• 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 that the combustible sensor be checked
with a known concentration of calibration gas after any
exposure to contaminants/poisons such as sulfur
compounds, silicon vapors, halogenated compounds, etc.

• 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.

• Caution: High off-scale LEL readings may indicate an
explosive concentration.

• Any rapid up scaling reading followed by a declining or
erratic reading may indicate a gas concentration beyond
upper scale limit, which can be hazardous.

2

• For use only in potentially explosive atmospheres where

oxygen concentrations do not exceed 20.9% (v/v).

• Extended exposure of the GasAlertMax XT II to certain
concentrations of combustible gases and air may stress the
detector element that can seriously affect its performance. If
an alarm occurs due to a high concentration of combustible
gases, recalibration should be performed, or if needed, the
sensor replaced.

• The BW pump (XT-RPUMP-K1) is certified for use with the
GasAlertMax XT II only.

• Warning: The lithium battery (MX-BAT01) may present a risk
of fire or chemical burn hazard if misused. Do not
disassemble, heat above 212°F (100°C), or incinerate.

• Warning: Do not use any other lithium batteries with the
GasAlertMax XT II detector. Use of any other cell can cause
fire and/or explosion. To order and replace the MX-BAT01
lithium battery, contact BW Technologies by Honeywell.

• Warning: Lithium polymer cells exposed to heat at 266°F
(130°C) for 10 minutes can cause fire and/or explosion.

• Dispose of used lithium cells immediately. Do not
disassemble and do not dispose of in fire. Do not mix with
the solid waste stream. Spent batteries must be disposed
of by a qualified recycler or hazardous materials handler.

• Keep lithium cells away from children.

• Calibrations and bump tests can be performed using a

0.5 l/min. regulator or a demand flow regulator. If the demand
flow regulator is used, it must meet the following maximum
inlet pressure specifications:

• Disposable cylinders 0-3000 psig/70 bar

• Refillable cylinders 0-3000 psig/70 bar

Parts of the GasAlertMax XT II

Parts of the GasAlertMax XT II

GasAlertMax XT II

Item Description

1

2

3

4

5

6

7

8

9

10

Visual alarm indicators (LEDs)

Pump quick connector

Pump filter and moisture filter

Pushbutton

Alligator clip

Charging connector and IR interface

Diffusion cover locking screw (1)

Diffusion cover

Audible alarm

Liquid crystal display (LCD)

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GasAlertMax XT II

Operator’s Manual

Display Elements

4

Item Description

1

2

3

4

5

6

7

8

9

Alarm condition

Automatically zero sensor

Numeric values

Battery life indicator

Pump indicator

Heartbeat indicator

Gas type identifiers

Gas cylinder

Automatically span sensor

Pushbutton

Pushbutton Description

• To activate the detector, press C.

• To deactivate the detector, press and hold C until the OFF countdown is complete.

• To view the date/time, TWA, STEL, and maximum (MAX) readings, press C twice rapidly. To clear
the TWA, STEL, and MAX readings, press C when the LCD displays CLEAR ALL.

• To initiate calibration, press and hold C while the detector performs the OFF countdown. Continue
holding C while the LCD briefly deactivates and then reactivates to begin the CAL countdown.

C

Release C when the CAL countdown is complete.

• To activate the backlight, press C and release.

• To acknowledge latched and pump alarms, press C.

• To acknowledge a low alarm and disable the audible alarm, press C. The Low Alarm Acknowl-
edge option must be enabled in Fleet Manager II.

• To acknowledge any of the Due Today alarms (calibration, bump test, block test) and disable the
audible alarm, press C.

GasAlertMax XT II

Pushbutton

5