BW Technologies GasAlertMax User Manual

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GasAlertMax

H2S, CO, O2, Combustibles

Page 2

Limited Warranty & Limitation of Liability

BW Technologies Ltd. (BW) warrants this product to be free from defects in material and workmanship under normal use and service for a period of 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 CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY 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.

BW Technologies Ltd. BW Technologies Inc. BW Europe Ltd. 2840 – 2nd Ave. SE 3279 West Pioneer Parkway 101 Heyford Park Calgary, AB Arlington, TX Upper Heyford, Oxfordshire Canada T2A 7X9 USA 76013 United Kingdom OX25 5HA

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Table of Contents

Title Page

Introduction............................................................................................................................................1

Contacting BW Technologies................................................................................................................2

Safety Information - Read First.............................................................................................................2

Getting Started......................................................................................................................................6

Activating the Detector........................................................................................................................10

Self-Test......................................................................................................................................10

Battery Test .................................................................................................................................13

Pump Test...................................................................................................................................13

Self-Test Pass.............................................................................................................................14

Self-Test Fail ...............................................................................................................................14

Deactivating the Detector....................................................................................................................14

Confidence Beep.................................................................................................................................15

User Options Menu.............................................................................................................................15

Finish Option ...............................................................................................................................16

Date and Time Option .................................................................................................................16

Sensor Enable/Disable Option....................................................................................................17

Pass Code Protection Option......................................................................................................18

Latching Alarm Option.................................................................................................................19

Automatic Oxygen Calibration Option.........................................................................................20

Calibration Span Concentration Option.......................................................................................21

Pump Test Option........................................................................................................................22

STEL Period Option ....................................................................................................................22

German Language Option...........................................................................................................23

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GasAlertMax

User Manual

Title Page

Sampling Hose....................................................................................................................................23

Datalog................................................................................................................................................23

Alarms .................................................................................................................................................24

Gas Exposures Computed ..........................................................................................................27

Viewing Gas Exposures...............................................................................................................28

Gas Alarm Setpoints....................................................................................................................29

Resetting Gas Alarm Setpoints ...................................................................................................29

Stopping a Gas Alarm..................................................................................................................30

Sensor Alarm...............................................................................................................................30

Pump Alarms ...............................................................................................................................30

Low Battery Alarm........................................................................................................................31

Automatic Shutdown Alarm.........................................................................................................31

Calibration and Setting Alarm Setpoints .............................................................................................32

Guidelines....................................................................................................................................32

Diagnostics Protection.................................................................................................................34

Applying Gas to the Sensors.......................................................................................................34

Calibration Procedure..................................................................................................................35

Pump Calibration.................................................................................................................................40

Pump Calibration Pass................................................................................................................41

Pump Calibration Fail..................................................................................................................41

MultiMediaCard (MMC).......................................................................................................................42

Installing the MMC Card Reader.................................................................................................42

Installing a New MMC..................................................................................................................42

Importing the Data File ................................................................................................................43

Determining Application Compatibility.........................................................................................44

Maintenance........................................................................................................................................48

Replacing the Battery ..................................................................................................................48

Replacing a Sensor, Pump, or Pump Filter.................................................................................50

Troubleshooting...................................................................................................................................52

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Title Page

Replacement Parts and Accessories..................................................................................................55

Specifications......................................................................................................................................57

General Specifications for Datalogger Units...............................................................................59

GasAlertMax with Black Box Datalogger ....................................................................................60

GasAlertMax with User Downloadable Datalogger.....................................................................60

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GasAlertMax

User Manual

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List of Tables

Table Title Page

GasAlertMax Gas Detector ..................................................................................viii

1. Gases Monitored....................................................................................................1

2. International Symbols.............................................................................................5

3. GasAlertMax Detector............................................................................................7

4. Display Elements....................................................................................................8

5. Pushbuttons............................................................................................................9

6. Alarms ..................................................................................................................24

7. Computed Gas Exposures...................................................................................27

8. Gas Alarm Setpoints ............................................................................................29

9. Factory Set Alarm Setpoints.................................................................................29

10. Applying Gas to the Sensors................................................................................34

11. Datalogger Status Codes.....................................................................................45

12. CSV File Example................................................................................................46

13. Replacing the Battery...........................................................................................49

14. Replacing a Sensor, Pump, or Pump Filter..........................................................51

15. Troubleshooting Tips............................................................................................52

16. Replacement Parts and Accessories...................................................................55

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GasAlertMax

User Manual

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List of Figures

Figure Title Page

1. GasAlertMax Detector............................................................................................7

2. Display Elements....................................................................................................8

3. Applying Gas to the Sensors................................................................................34

4. Replacing the Battery...........................................................................................49

5. Replacing a Sensor, Pump, or Pump Filter..........................................................51

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GasAlertMax

User Manual

CAUTION: FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND SERVICED BY QUALIFIED PERSONNEL ONLY. READ AND UNDERSTAND INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR SERVICING.

GasAlertMax Gas Detector

Order Number Description

GAMAX3-4 GasAlertMax (4 Gas) Detector (H2S, CO, O2, %LEL) GAMAX3-4-DL1 GasAlertMax (4 Gas) c/w Black Box Datalogger

GAMAX3-4-DL2 GasAlertMax (4 Gas) c/w User Downloadable Datalogger GAMAX3-3H GasAlertMax (3 Gas) Detector (H2S, O2, %LEL) GAMAX3-3H-DL1 GasAlertMax (3 Gas) c/w Black Box Datalogger GAMAX3-3H-DL2 GasAlertMax (3 Gas) c/w User Downloadable Datalogger GAMAX3-2 GasAlertMax (2 Gas) Detector (O2, %LEL) GAMAX3-2-DL1 GasAlertMax (2 Gas) c/w Black Box Datalogger GAMAX3-2-DL2 GasAlertMax (2 Gas) c/w User Downloadable Datalogger

GasAlertMax Multi-Gas Detector

The detector comes complete with a motorized sampling pump.

GasAlertMax with Black Box Datalogger

Provides full-time continuous datalogging while the detector is operating. Wraparound memory ensures the most recent data is always saved. Data cannot be accessed by the user. Data is retrievable by an authorized BW factory service center in the event of an incident or occurrence.

GasAlertMax with User Downloadable Datalogger

Provides full-time continuous datalogging while the instrument is operating. Data is saved on a convenient MultiMediaCard and can be removed and downloaded by the user. Data is imported into standard office software (Microsoft

Excel, Access, etc.).

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GasAlertMax

Introduction

a Warning

To ensure your personal safety, read “Safety Information” before you use the detector.

The GasAlertMax gas detector (“the detector”) warns of hazardous gas at levels above factory set alarm setpoints. This product is a gas detector.

The detector is a personal safety device. It is your responsibility to respond properly to the alarm.

Table 1 lists the gases monitored.

Table 1. Gases Monitored

Gas Monitored Unit of Measurement

Hydrogen sulfide (H2S) parts per million (ppm) Carbon monoxide (CO) parts per million (ppm) Oxygen (O2) percent by volume (%) Combustible gases (LEL) percent of lower explosive

limit (% LEL)

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GasAlertMax

User Manual

Contacting BW Technologies

To contact BW Technologies, call: USA: 1-888-749-8878

Canada: 1-800-663-4164 Europe: +44 (0) 1869 233004 Middle East: +971-4-8871766 China: +852-2974-1783 Australia: +61-7-3818-8244 Anywhere in the world: +1-403-248-9226

Address correspondence to:

BW Technologies Ltd. 2840 – 2 Avenue S.E. Calgary, AB T2A 7X9 CANADA

Or visit us on the World Wide Web:

ISO 9001

www.gasmonitors.com

Safety Information - Read First

Use the detector only as specified in this manual, otherwise the protection provided by the detector may be impaired.

International symbols used on the detector and in this manual are explained in Table 2.

Read the Warnings and Cautions on the following pages before using the detector.

ec Note

This instrument contains a rechargeable battery. Do not mix with the solid waste stream. Spent batteries should be disposed of by a qualified recycler or hazardous materials handler.

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GasAlertMax Safety Information - Read First

a Caution

To avoid possible personal injury:

⇒ Warning: Substitution of components may impair Intrinsic Safety. ⇒ Do not use the detector if it is damaged. Before you use the detector, inspect the case. Look for cracks or

missing plastic.

⇒ If the detector is damaged or something is missing, contact ⇒ For use only in potentially explosive atmospheres where oxygen concentrations do not exceed 20.9% (v/v).

⇒ Make sure the back is closed and fastened, and the battery is locked in place before you operate the detector. ⇒ Use only a sensor specifically designed for your GasAlertMax model. (See the section,

and Accessories.)

⇒ Periodically test the sensor’s response to gas by exposing the detector to a targeted gas concentration that

exceeds the High Alarm setpoint. Manually verify that the audible and visual alarms are activated.

⇒ Prior to each day’s usage sensitivity must be tested on a known concentration of the target combustible gas

(methane, etc.) equivalent to 25-50% of full-scale concentration (accuracy must be within 0 to +20% of actual). Accuracy may be corrected by recalibrating the instrument.

⇒ It is recommended the detector be calibrated before first-time use, and then at least once every 180 days. ⇒ Do not turn off the detector during a work shift. Turning off the detector resets the TWA (time-weighted

average), STEL (short-term exposure limit), and maximum gas exposure values to 0. (See the section,

Alarms.)

⇒ It is recommended that the accuracy of the GasAlertMax be checked with known concentration calibration

gas before each day’s use and immediately after any known exposure to contaminants (e.g., after an H alarm if such a sensor is fitted).

BW Technologies immediately.

Replacement Parts

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GasAlertMax

User Manual

a Cautions (con’t)

⇒ 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 high alarm setpoints. Manually verify that the audible and visual alarms are activated. Calibrate if the readings are not within the specified limits.

⇒ Make sure the pump filter is not blocked. ⇒ The LEL sensor is factory calibrated to methane. If monitoring a different combustible gas, calibrate the

sensor using the appropriate gas.

⇒ High off-scale % LEL readings may indicate an explosive concentration. ⇒ Protect the LEL 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.

⇒ 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.

⇒ Use only Black & Decker VersaPak™ battery. Ensure it is properly charged and installed in the detector case.

(See the section, Replacement Parts and Accessories.)

⇒ Only charge batteries using VersaPak™ charger. Do not use any other charger. Failure to observe this

precaution could lead to fire or explosion.

⇒ Do not change or charge batteries in a hazardous location. Doing so will impair the Intrinsic Safety of the

unit, and may lead to fire or explosion.

⇒ Read and observe all instructions and precautions in the literature provided with the charger. Failure to do so

may result in fire, electric shock, or other forms of personal injury or property damage.

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GasAlertMax Safety Information - Read First

a Cautions (con’t)

To avoid possible damage to the detector: ⇒ Extended exposure of the GasAlertMax to certain concentrations of combustible gases 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.

⇒ Exposure to some substances (e.g. silicones, phosphates, lead or sulfur containing compounds) can cause LEL

sensor sensitivity loss.

⇒ Do not test the combustible sensors response with a butane cigarette lighter. ⇒ Do not expose the detector to electrical shock and/or severe continuous mechanical shock. ⇒ Do not attempt to disassemble, adjust, or service the detector unless instructions for that procedure are

contained in the manual and/or that part is listed as a replacement part. Use only BW Technologies replacement parts.

⇒ Do not immerse the detector in liquids. ⇒ The detector warranty will be voided if customer personnel or third parties damage the detector during repair

attempts. Non-BW Technologies repair/service attempts void this warranty.

Table 2. International Symbols

Symbol Meaning

BAM

ATEX

AUS

Approved to both U.S. and Canadian Standards by the Canadian Standards Association European Explosives Protection

Conforms to European Union Directives BAM performance verification to European Performance Standards Conforms to European ATEX Directives

Certified to Australian Standards

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GasAlertMax

User Manual

Getting Started

The items listed below are included with your detector. If the detector is damaged or something is missing, contact the place of purchase immediately.

• One Black & Decker VersaPak™ battery;

• VersaPak™ battery VAC charger;

• H

S/CO sensor (dual sensor);

sensor;

• O

• LEL sensor;

• Calibration hose;

• Sampling hose;

• Carrying holster.

To order replacement parts, see the

Accessories section.

Replacement Parts and

The detector comes with the sensors installed. The

Maintenance section describes how to install the battery.

To become familiar with the features and functions of the detector, study the following figures and tables:

• Figure 1 and Table 3 describe the detector’s components.

• Figure 2 and Table 4 describe the detector’s display elements.

• Table 5 describes the detector’s pushbuttons.

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GasAlertMax Getting Started

Table 3. GasAlertMax Detector

Item Function

A Audible alarm B Visual alarm C Display D Pushbuttons E Accessory output jack F Pump and pump filter G Sensors H Battery I Datalogger (optional)

J Sampling hose

Figure 1. GasAlertMax Detector

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GasAlertMax

User Manual

Figure 2. Display Elements

Note

The display backlight automatically activates for 10 seconds whenever there is insufficient light to view the display and during alarm conditions. Any pushbutton reactivates the backlight.

Table 4. Display Elements

Item Function

A Set value B Increment or decrement value C Gas cylinder D Battery E Automatically span the sensor F Gas identifier bars G Alarm setpoint or alarm H Automatically zero the sensor I Pump J Alarm condition K Real time calendar (date, month, year) L Optional datalogger card indicator M Optional datalogger FAIL indicator N Other symbols (future use)

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GasAlertMax Getting Started

Table 5. Pushbuttons

Pushbutton Description

• To turn on the detector, press F.

CAL

TWA MAX

• To turn off the detector, press F and hold for 5 seconds.

• To initiate the confidence beep, press F while pressing C at startup.

• To decrement the displayed value, press H.

• To initiate calibration and setting alarm setpoints, press H and C simultaneously.

• To enter the user options menu, press H and G simultaneously.

• To increment the displayed value, press G.

• To view the TWA, STEL, and maximum gas exposures, press G and C simultaneously.

• To manually reset the maximum (peak) hold reading, press C and hold for 5 seconds.

• To initiate the sampling pump recalibration (when a pump alarm activates), press C and hold for

3 seconds.

• To acknowledge latched alarms, press C.

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GasAlertMax

User Manual

Activating the Detector

Note

The detector must be activated before entering a potentially explosive area.

To activate the detector, press F in a normal atmosphere (20.9% Oxygen).

Self-Test

Once the detector is activated, it performs the following checks. (Manually check that all actions occur.)

1. If the battery is low, I LOW flashes and the display reads OFF. Replace the battery and restart the detector.

2. The display shows all the elements.

3. The audible alarm beeps, the visual alarm flashes, and the backlight briefly turns on.

Note

Steps #4 and #5 are for datalogger models only.

4. The detector tests the data card.

Note

The MultiMediaCard icon ( continuously on black box datalogger detectors and when a card is present in user downloadable datalogger detectors.

Datalogger operation is automatic and requires no settings.

S) is displayed

Black Box Datalogger

The FAIL, ALARM, and card icons blink if the card malfunctions or is removed.

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GasAlertMax Activating the Detector

User Downloadable Datalogger

The detector tests the data card. The display advises if the card is present and ready for use.

If the card is missing or malfunctioning, the detector beeps and flashes quickly. The display advises CArd Error and th detector continues the self-test before proceeding to normal operation.

Note

The detector does not require the data card to be present or functioning in order to operate.

Removing the card will cause a CArd Out message and a brief alarm. Inserting the card will cause a CArd In message and a beep for confirmation.

You can add or change the data card on user downloadable units at any time. The detector supports card insertion and removal while the instrument is active.

5. The display shows the time and date.

6. The display then shows the TWA, STEL, low, and high alarm setpoints.

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GasAlertMax

User Manual

7. The calibration status is shown. The number of days remaining before a calibration is due is displayed.

If the calibration is overdue, a warning will sound and the LCD shows the number of days it is overdue. Press C to acknowledge the warning. BW recommends that you calibrate the detector.

8. The display reads tESt as the detector tests the sensors.

The pump draws air over the sensors. If the sensor test fails, the audible alarm emits a slow modulating tone and the visual alarm flashes slowly. The display advises which sensor(s) has failed.

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GasAlertMax Activating the Detector

9. The detector then runs a pump test check (if enabled in the user options).

10. The Oxygen sensor is then automatically calibrated (if enabled in the user options).

Battery Test

The battery is tested on activation and continuously thereafter. If the battery is low, I LOW flashes.

Note

If the confidence beep is on, the audible alarm beeps if the battery has sufficient power and stops if the battery power is low. (See the section,

Confidence Beep.)

Pump Test

The pump is tested continuously after activation. If the pump test fails, the display will show the following:

Note

If the pump alarm continues for more than 5 seconds and the display shows InlEt bLockEd, refer to the

Pump Calibration section.

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GasAlertMax

User Manual

Self-Test Pass

If the detector passes the self-test, the detector begins normal operation. The display shows the ambient gas readings.

The detector starts recording the maximum gas exposure and calculating the STEL (short-term exposure level) and TWA (time-weighted average) exposures.

Self-Test Fail

If the detector fails the self-test, see the Troubleshooting section.

Deactivating the Detector

To turn off the detector, press F and hold for 5 seconds. The audible alarm beeps four times, the visual alarm flashes

four times, and then the display shows the following:

The display turns off and the detector stops normal operation.

Note

If F

is held down for less than 5 seconds, the

detector will not shut down.

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GasAlertMax Confidence Beep

Confidence Beep

The confidence beep tells you the detector is on and the battery has sufficient power to respond to a hazardous level of gas and emit an alarm. Instead of beeping when the battery’s power is low, the audible alarm beeps to advise you the battery has sufficient power. The confidence beep stops when the battery power is low.

You can only activate the confidence beep at startup. To turn on the confidence beep:

1. If the detector is on, deactivate the detector.

2. Press F while pressing C at startup.

After the self-test completes, the detector continuously beeps once every 5 seconds.

To turn off the confidence beep, repeat steps 1 and 2 above.

User Options Menu

The following are the available user options:

1. Finish options and exit the user options menu.

2. Adjust real-time clock and calendar. (User downloadable datalogger model only)

3. Enable or disable operation of one or more sensors.

4. Enable or disable pass code protection.

5. Set latching alarm function.

6. Enable or disable the automatic Oxygen calibration at startup.

7. Set the calibration gas span concentration values.

8. Enable or disable the startup pump test.

9. Set the STEL calculation period.

10. Set the LCD to display in German.

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GasAlertMax

User Manual

To access the user options menu press H and G simultaneously until the display reads the following:

If the user options menu is pass code protected, the following screen will appear. You must enter the correct pass code before you can enter the user options menu.

Press H or G to scroll through the options.

Finish Option

To exit the options menu and return to normal operation at any time, press

C when the display shows FiniSh OPtionS.

Date and Time Option

Note

Time and date adjustments only apply to user downloadable datalogger detectors.

To set the real-time clock calendar, press C when the display shows AdJuSt Clock.

The display reads in the following order:

Day of the week (Monday = 1), Hours (h), Minutes,

(D)

Date

(M)

Month

Year Use H and G to adjust the time and date to your local setting. Press C to confirm each setting.

(Y)

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GasAlertMax User Options Menu

Sensor Enable/Disable Option

a Warning

Disabling an installed sensor configures the detector to a one, two, or three gas unit. No protection is now provided for the gas targeted by that sensor(s).

Disabling a sensor should be performed with extreme caution. In the event a sensor fails, sensor disable can be used to turn off the sensor fail alarm. The sensor should be replaced and enabled as soon as possible.

If a sensor is disabled, the detector still functions normally with the remaining enabled sensors. The sensor can be enabled again at any time.

To enable or disable a sensor, press C when the display reads

toggLE H2S (CO, LEL, or O

For this example the H toggled.

) SEn.

S sensor is

Note

Whenever you enter the sensor enable/disable option, it toggles the option on or off (depending on its current status).

The display advises whether the sensor is now on or off.

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GasAlertMax

User Manual

Pass Code Protection Option

Pass code protection prevents unauthorized personnel from having access to the user option menu, calibration function, and alarm setpoints adjust function.

Entering the Pass Code

If pass code protection is enabled, press H or G to scroll to the correct pass code when the following screen appears:

Note

The factory pass code is provided separately.

Then press C to accept the displayed pass code. The correct three-digit factory pass code must be entered in

8 seconds or the display advises that the code is not correct/error and returns to normal operation.

No code entered or incorrect code entered and confirmed.

• Beeps and flashes

• Returns to normal operation

Code entered, but not confirmed.

• Display shows both LCDs

• Beeps and flashes

• Returns to normal operation

The detector is shipped with the pass code protection off.

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GasAlertMax User Options Menu

Enable/Disable Pass Code Protect

To enter the pass code protection option, press C when the display reads PASS Lock.

Note

Whenever you enter the pass code protection option, it toggles the option on or off (depending on its current status).

The display advises whether pass code protect is on or off.

Latching Alarm Option

If an alarm is set to latch, the audible and visual alarms persist in the event of an alarm condit acknowledged by pressing C.

The detector is shipped w disabled.

ith the latching alarm function

ion until the alarm is

To enter the latching alarm function, press C when the display reads LAtchin ALArmS.

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GasAlertMax

User Manual

Note

Whenever you enter the latching alarm option, it toggles the option on or off (depending on its current status).

The display advises whether the latching alarm function is now on or off.

Automatic Oxygen Calibration Option

This option allows you to enable or disable the automatic Oxygen calibration. Enabling this option allows the detector to calibrate the Oxygen sensor during startup.

The detector is shipped with this function enabled. To enter the automatic Oxygen

calibration option, press C when the display reads toggLE O2 CAL.

The display then advises whether the option is on or off.

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GasAlertMax User Options Menu

Calibration Span Concentration Option

With this option you can input new gas concentrations before calibrating your detector.

To enter the calibration gas span concentration values option, press C when the display reads SEt CAL SPAnS.

You can change the span values for H2S, CO, and LEL. Once you change a value, you must press C to confirm your selection.

Note

If you do not press any pushbuttons within 8 seconds of viewing this display, the detector automatically saves the displayed concentration of the calibration gas.

If you change the calibration gas concentration but pause for 8 seconds before pressing C, the detector rejects the new value. The display shows the original value and then continues setting the other gas concentrations.

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GasAlertMax

User Manual

Pump Test Option

The pump test option allows you to enable or disable the pump test at startup. Enabling this option allows the detector to try and detect a blocked inlet during startup.

To enter this option, press C when the display reads toggLE PumP tSt.

The display then advises whether this option is now on or off.

STEL Period Option

By default, the short-term exposure limit (STEL) is based on a 15-minute period. This option allows you to change the period between 5-15 minutes.

To enter this option, press C when the display reads StEL PEriod.

To change the STEL period, press H and G. Then press C to save the new value.

Note

If you do not press any pushbuttons within 8 seconds of entering this option, the detector automatically saves the displayed value.

If you change the STEL period but pause for 8 seconds before pressing the new value. The display shows Err, the detector retains the original value, and the detector returns to the user options menu.

, the detector rejects

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GasAlertMax Sampling Hose

German Language Option

The detector’s display can be viewed in either English or German. This option allows you to toggle the display between the two languages. The detector is shipped with English as its default.

To change the LCD to display in German, press C when the display reads AnZElgE dEutSCH.

To switch the LCD display from German to English, press C when the display reads SEt tO EngLISH.

Sampling Hose

The sampling hose can be used to draw a gas sample from a remote area. (For instructions on how to connect the sampling hose, refer to Figure 1. GasAlertMax Detector.)

For the sample to reach the detector, allow approximately 3 seconds per 1 ft./0.3 m of hose.

Datalog

The GasAlertMax Datalogger version allows the detector to record various information so a report can be compiled. Datalog information is recorded onto the MMC (refer to the

MultiMediaCard (MMC) section) at the standard sampling

rate of 5 seconds. The following information is recorded in a datalog:

• The date and time;

• The current gas readings;

• TWA readings for H

• The unit status; and

• The serial number.

S and CO;

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GasAlertMax

User Manual

Alarms

Table 6 describes the detector alarms and shows how the display looks for each alarm.

Table 7 describes the computed gas exposures.

Alarms Display Alarms Display

Low Alarm:

• Slow modulating tone and flash

• ALARM and target gas bar flash

High Alarm:

• Fast modulating tone and flash

• ALARM and target gas bar flash

During an alarm condition, the detector activates the backlight and the display shows the current ambient gas reading.

If more than one type or level of alarm exists at the same time, a multi-gas alarm will result. For any single sensor, a high alarm will override a low alarm.

Table 6. Alarms

TWA Alarm:

• Fast modulating tone and flash

• ALARM and target gas bar flash

STEL Alarm:

• Fast modulating tone and flash

• ALARM and target gas bar flash

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Table 6. Alarms (cont.)

Alarms Display Alarms Display

Over Range Alarm: (Over Level Exposure)

• Fast modulating tone and flash

• ALARM and target gas bar flash

Sensor Alarm:

• Slow modulating tone and flash

• ALARM and gas bar(s) flash

Multi-Gas Alarm:

• Alternating low and high alarm tone and flash

• ALARM and target gas bars flash

Pump Alarm:

• Slow modulating tone and flash

• ALARM and gas bars flash If LCD reads InlEt bLockEd, clear the

filter. If alarm persists, see Pump Calibration.

pump

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Alarms Display Alarms Display

Table 6. Alarms (cont.)

Low Battery Alarm:

(Confidence beep disabled)

• 1 beep and 1 flash every 5 seconds

• I LOW flashes

Automatic Shutdown Alarm:

• 8 beeps and flashes

• I LOW displays

periodically

Confidence Beep:

• 1 beep every 5 seconds

Normal Shutdown:

• 4 beeps and flashes

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Gas Exposures Computed

a Warning

To avoid possible personal injury, do not turn off the detector during a work shift. The detector automatically resets the TWA, STEL, and maximum gas exposures at startup. If you restart the detector during a work shift, these values will not reflect the entire work shift.

Table 7. Computed Gas Exposures

Gas Exposure Description

TWA (CO and H only)

STEL (CO and H only)

Maximum* (Peak)

• Time-weighted average based

on an 8-hour workday.

• Accumulated value.

• Short-term exposure level base

on a 5-15 minute period (user selectable).

• Accumulated value.

• Highest gas level encountered

during the period the detector is turned on.

* Maximum gas exposure for Oxygen describes the furthest level reached from 20.9% vol.

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Viewing Gas Exposures

Press G and C simultaneously and the display first shows the TWA gas exposure.

The display then shows the STEL gas exposure.

And lastly it shows the maximum gas exposure.

Press and hold C for 5 seconds to reset the maximum exposures.

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GasAlertMax Alarms

Gas Alarm Setpoints

The detector's gas alarm setpoints trigger the gas alarms described in the table below.

Table 8. Gas Alarm Setpoints

Alarm Condition

Low alarm CO, H2S, and LEL: Ambient

gas level above low alarm setpoint. (For O

High alarm CO, H2S, and LEL: Ambient

gas level above high alarm setpoint. (For O

TWA alarm (CO and H

Accumulated value above the TWA alarm setpoint.

only) STEL alarm

(CO and H

Accumulated value above the STEL alarm setpoint.

only) Multi-gas alarm Two or more gas alarm

conditions.

see below.)

, see below.)

Oxygen Alarm Setpoints

User selectable for low and high alarms in the 0-30.0%** range. Set both below, both above, or one above and one below 20.9% as desired.

Alarm setpoints > 20.9% (v/v) for increasing Oxygen concentrations.

Alarm setpoints < 20.9% (v/v) for decreasing Oxygen concentrations.

** See Specifications

Resetting Gas Alarm Setpoints

Note

Standard factory alarm setpoints may vary by region.

Table 9. Factory Set Alarm Setpoints

Gas Low High TWA STEL

CO 35 ppm 200 ppm 35 ppm 50 ppm H2S 10 ppm 15 ppm 10 ppm 15 ppm O

Combustible Gases

19.5% 22% N/A N/A 10% LEL 20% LEL N/A N/A

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To change the factory-set alarm setpoints, refer to the

Calibration and Setting Alarm Setpoints section.

Note

You can disable an alarm by setting the alarm setpoint to 0 (display: - -).

Stopping a Gas Alarm

The low, high, and STEL alarm stops when the ambient gas level returns to the acceptable range.

The detector computes the TWA value based on an 8-hour workday. Only deactivating the detector can stop the TWA alarm.

Acknowledge Latched Alarm

If the latched alarm function is turned on, the audible and visual alarms continue to sound and flash until the low, high, or STEL alarm condition is acknowledged. Press C to deactivate the audible and visual alarms when the current ambient gas reading falls below the low alarm level. The alarms cannot be deactivated if an alarm condition is still present. A TWA alarm condition will not reset.

Note

A STEL alarm may take up to 15 minutes of clean air readings before the latched alarm can be deactivated.

Sensor Alarm

The detector tests for a missing or defective sensor during the activation self-test. See the

Troubleshooting section.

Pump Alarms

The internal pump draws air over the sensors. If the pump stops working or the pump filter becomes clogged, the detector activates the pump alarm.

Pump Alarm

Turn off the detector immediately and clear the pump inlet, hose, and filter.

Blocked Pump Alarm

If the pump alarm continues and the LCD advises the inlet is blocked, see the

Pump Calibration section.

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Pump Failure Alarm

This alarm activates if the startup pump test has failed or the pump is missing/broken.

Note

The pump may alarm when attaching a calibration hose or replacing the filter.

Low Battery Alarm

The detector tests the battery on activation and continuously thereafter. If the battery voltage is low, the detector activates the low battery alarm.

The low battery alarm continues until you replace the battery or the battery power is almost depleted. If the battery voltage drops too low, the detector executes an automatic shutdown.

Note

If the confidence beep is on, the audible alarm does not beep during a low battery alarm. (See the

Confidence Beep section.)

Automatic Shutdown Alarm

If the battery voltage is in immediate danger of dropping below the minimum operating voltage, the audible alarm beeps 8 times and the visual alarm flashes 8 times. After 3 seconds, the display blanks out and the detector stops normal operation. The display shows I LOW periodically until the battery power is depleted.

For directions on how to replace the battery, see the section

Replacing the Battery.

Note

Typically, the low battery alarm continues for 30 minutes before an automatic shutdown.

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Calibration and Setting Alarm Setpoints

Guidelines

When calibrating the detector, adhere to the following guidelines.

• Recommended gas mixture: CO: 35 to 255 ppm balance N H

S: 10 to 100 ppm balance N2

LEL: 10 to 100% LEL or 0.5 to 5% vol. Methane balance air O

: Clean air, 20.9%

• CG-Q58-4 calibration gas (four-gas mix) is available from BW Technologies. (See the section

Parts and Accessories.)

Replacement

• Calibration accuracy is never better than the calibration gas accuracy. BW Technologies recommends a premium-grade calibration gas. Gases with NIST (National Institute of Standards and Technology) traceable accuracy will improve the validity of the calibration. Do not use a gas cylinder beyond its expiration date.

• Calibrate a new sensor before use. Install the sensor, activate the detector, and allow the sensor to stabilize before starting calibration (used: 60 seconds; new: 5 minutes).

• Calibrate the detector at least once every 180 days, depending on use and sensor exposure to poisons and contaminants.

• Calibrate the detector if the ambient gas display varies at startup.

• It is best to calibrate the sensor before changing alarm setpoints.

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GasAlertMax Calibration and Setting Alarm Setpoints

• Calibrate only in a clean atmosphere, which is free of background gas.

• To disable an alarm, set its alarm setpoint to 0.

• The LEL sensor is factory calibrated to Methane. If

monitoring a different combustible gas, calibrate the sensor using the appropriate gas.

• The Oxygen sensor can be automatically calibrated on activation if this feature is enabled. Activate detector in a normal (20.9% O

• If you require a certified calibration, contact

) atmosphere.

Technologies.

• High CO concentrations above the top of the measuring range are not indicated as OL (transgression of the measuring range). If the end of the measuring range is exceeded, the function of the apparatus has to be checked with test gas.

• CO measuring values from –3 ppm (v/v) up to +3 ppm (v/v) and H

S measuring values from –1 ppm (v/v) up to

+1 ppm (v/v) are indicated during measuring operation as 0 ppm (v/v).

• The cross sensitivities described in the sensor datasheet are to be considered. Due to sensor cross sensitivities, H

S concentrations within the measuring

range can cause a CO indication.

• H

S concentrations within the measuring range can

cause an adverse effect on the catalytic LEL sensor. After an H

S alarm, it is necessary to check the

measuring function of the LEL sensor.

Note

The detector must be calibrated if a negative measuring value is indicated during operation.

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Diagnostics Protection

The detector tests the ambient air (auto zero) and the test gas applied (auto span) to ensure it meets expected values.

If a significant level of background target gas is present during an auto zero, the sensor(s) affected will read Err and exit the auto zero function while retaining the previous set value(s).

In an auto span, if any target gas is not present or does not meet expected values, the display advises you and exits the calibration mode while retaining the previous set value(s).

Applying Gas to the Sensors

The calibration hose, which is shipped with the detector, simplifies the sensor testing and calibration. Table 10 and Figure 3 show how to use it when applying gas to the sensors.

Table 10. Applying Gas to the Sensors

Item Description

A Detector back B Calibration hose C Regulator and gas cylinder

Figure 3. Applying Gas to the Sensors

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Calibration Procedure

To calibrate the detector and set its alarm setpoints, perform the following procedure.

Note

To quit at any point after the auto zero, press F. The detector retains any saved values and the audible alarm beeps four times before the detector returns to normal operation.

Start Calibration

1. Press C and H simultaneously. The display shows the following.

The audible alarm beeps once.

Auto Zero and Oxygen Sensor Calibration

2. The display flashes N while the detector automatically zeroes the H and calibrates the Oxygen sensor.

The audible alarm then beeps twice.

Auto Zero Sensor Fail

S, CO, and LEL sensors

Note

Do not apply the calibration gas until the display shows a flashing gas cylinder; otherwise, the auto zero step will fa il.

If a sensor fails, the display shows Err (error) and skips the span for the failed sensor(s). Press F to exit. Then restart calibration in an atmosphere that is clear of the targeted gases. If the auto zero fails a second time, restart the detector to test the sensors.

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Pass Code Protect Activated

After a successful auto zero, the detector asks for the pass code if the detector is pass code protected. The pass code needs to be entered before proceeding to auto span and alarm setpoints.

3. The display will advise that calibration is locked.

It then requests the pass code. (Refer to the

Entering the Pass Code section.)

Note

If the correct code is entered, the detector automatically proceeds to set span.

If the pass code is not entered within 8 seconds or the wrong pass code is entered, the detector displays Not CorrEct.

The detector then beeps four times and automatically returns to normal operation.

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Auto Span

The display shows K prompting you to apply the calibration gas to the sensor or you can skip the span (sensitivity adjustment).

Use a calibration gas meeting the recommended gas mixture as listed in the guidelines.

4. Apply gas to the sensor at a flow rate of 250 to 500 ml/min. OR Press C to skip the span.

When the detector senses approximately one-half of the expected gas concentration (30 seconds), the audible alarm beeps once. The detector then begins spanning the sensor (2 minutes). (These times are valid if a GasAlertMax calibration gas is used.)

Note

The detector will not span a sensor if:

• You do not apply gas to the sensor.

• The sensor fails to detect at least one-half of

the expected gas concentration in the first 30 seconds.

• The gas concentration drops below one-half of the expected gas level during the 2-minute span.

If you apply gas to a sensor and the detector fails to span the sensor, press and repeat the calibration process using a new gas cylinder. If the sensor fails the span a second time, replace the sensor. (See the section,

Sensor, Pump, or Pump Filter.)

to exit the calibration

Replacing a

The audible alarm beeps three times at the end of the span.

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Setting the Alarm Setpoints

Note

TWA, STEL, low, and high alarm setpoints are set for each sensor in the following order: H LEL, and O

TWA and STEL do not apply to LEL and O

S, CO,

The display first shows the TWA alarm setpoint for H

The set up/down arrow icon lights, prompting you to input a new TWA alarm setpoint.

5. To change the TWA alarm setpoint, press H or G until the display shows the new value.

6. Press C to save the displayed value.

7. Repeat steps #5 and #6 for the remaining alarm setpoints and the remaining sensors.

Note

If you do not press any pushbuttons within 10 seconds of entering this display, the detector automatically retains the existing alarm setpoint.

If you change the displayed value but pause for 10 seconds before pressing C, the detector rejects the new value. The display shows Err (error) and the audible alarm beeps six times.

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Setting the Calibration Due Date

After all the alarm setpoints have been set, the display shows the number of days remaining before the next calibration is due. (The default setting is 180 days.)

Note

If you do not calibrate all of the sensors, the detector will read notE: SPAn ALL SEnSorS to rESEt CAL duE dAtE instead of the above.

The display flashes prompting you to change the calibration due date between 1 and 365 days.

8. If you want to change the next calibration due date, press H and G until the display shows the new value.

9. Press C to save the new value.

After the calibration due date is set, the audible alarm beeps four times and the detector returns to normal operation.

Note

If you do not press any pushbuttons within 10 seconds of entering this display, the detector automatically retains the existing value.

Verification

After calibration has been completed and the unit is in normal operating mode, test the detector using a gas cylinder other than the one used in the calibration. The gas concentration should not exceed the sensor's detection range. Confirm that the display shows the expected concentration.

The catalytic LEL sensor must be checked if a fitted H sensor gives an alarm (potential poison gas).

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Pump Calibration

The pump needs recalibration if the pump alarm continues for more than 5 seconds and the display advises that the inlet is blocked.

Note

The pump can only be calibrated if the above display is shown.

1. Press and hold C for 3 seconds until the audible alarm beeps.

2. Wait for the auto zero function to complete. The display advises pump calibration.

3. Then the audible alarm beeps twice, the pump icon stays lit, the auto span icon flashes, and the display shows the following:

4. To complete the calibration, block the pump inlet (within 8 seconds).

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GasAlertMax Pump Calibration

Pump Calibration Pass

If the pump calibration/pump test passes, the audible alarm beeps three times, the display shows rECAL SuccESS, and the detector returns to normal operation.

Pump Calibration Fail

If the pump calibration/pump test fails, the audible alarm beeps six times and the display reads PumP FAiLurE.

If the pump calibration fails, try to calibrate it again. If the calibration continues to fail, replace the pump. (Refer to

Replacing a Sensor, Pump, or Pump Filter.)

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MultiMediaCard (MMC)

A standard 32 MB MMC flash memory card is supplied with the GasAlertMax Datalogger. When purchasing additional MultiMediaCards, BW Technologies recommends Sandisk® MMC flash memory cards that contain between 8 MB and 64 MB storage capacity.

MultiMediaCard(s) compatible with the MMC specification will always have the exact word “MultiMediaCard” or “MMC” written on the disk. Cards that do not contain these exact words are not a MultiMediaCard.

The MMC is not the same as the following:

• MultiMedia card;

• Multi media card;

• SmartMedia.

Hitachi and Infineon manufacture compatible MMCs. MMCs are available through retailers in North America and Europe. They are also available through mail order and Internet vendors.

Installing the MMC Card Reader

To retrieve recorded data, a MultiMediaCard reader has to be configured and installed on your computer. The adapter provides the physical connection between the MultiMediaCard and your computer. Follow the manufacturer’s instructions.

Ensure your card reader is compatible with your computer. Several card readers that support Windows are available from BW Technologies.

Types of MultiMediaCard Readers

MultiMediaCard readers are available in the following:

• Floppy disk adapter;

• Parallel port external drive adapter (USB);

• Universal serial bus (USB); or

• PCMCIA (PC card) adapter.

Installing a New MMC

The new MMC is automatically formatted when it is installed in the detector. When installing a new or blank MMC into the GasAlertMax, the LCD displays CArd IS bLAnk and then the datalogger proceeds to auto format the card.

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Recovering Data Files

If the MultiMediaCard is reformatted or erased accidentally by your computer application, the recorded data file can still be recovered.

First, ensure the card is installed properly in the card reader. If the recorded data file is not visible, ensure that:

1. The card reader is visible in the My Computer window.

2. If not, verify that the card reader is installed correctly and that the connections are secure.

3. In the Removable Disk drive window, ensure All Files is selected in the file types field.

Place the MMC back into the GasAlertMax. The detector will reformat part of the card and the file should now be available.

If the data file (LOGFILE0.CSV), is still not visible, try formatting the MMC in Windows and then follow the procedure below.

1. Remove the MMC from the card reader.

2. Insert the MMC back into the GasAlertMax and allow the datalogger to reformat part of the MMC.

3. Remove the MMC from the datalogger and insert it back into the card reader.

4. Double-click on the My Computer icon.

5. Select the drive letter that corresponds to the card reader.

6. The recorded data file (LOGFILE0.CSV) should now be visible.

Importing the Data File

The data is stored in a file called LOGFILE0.CSV. There are two ways to display and organize this MMC data file:

1. By importing the file using the Excel Datalog Manager (E.D.M.) plug-in. Refer to the E.D.M. Help manual once E.D.M. is loaded onto the computer;

2. By importing the data file into a compatible desktop application.

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Direct Import to a Compatible Program

Note

Information in this section only applies to users who are not using the E.D.M. plug-in.

To view the data, insert the MMC into a card reader and open the LOGFILE0.CSV file with a spreadsheet, database, word processor, or text editor application. Some examples of these applications are as follows:

• Microsoft® Excel;

• Quattro Pro;

• Lotus 1-2-3;

• Microsoft® Access; and

• Microsoft® Word.

Note

Word processor and text editor performance may be poor since the datalogger file is at least 32 MB in size.

The data for user-accessible models is in comma-separatedvalue (CSV) format. The data is shown in the following order:

• Date, day, time;

• H

S, CO, LEL, O2;

• H

S TWA, CO TWA;

• Status codes, serial number. The recorded data includes an eight single-character unit

status codes. The eight characters represent codes for the H2S, CO, LEL, and O2 sensors, sample pump, datalogger, unit battery status, and unit alarm status. A summary of most of the available codes can be seen in Table 11.

Determining Application Compatibility

To determine if the application selected is compatible:

1. Insert the MMC into the card reader.

2. Open the desired application.

3. Use the application’s File>Open menu option to locate and open the data file.

If the recorded data file is compatible with the application, it will open. If not, the application will report an error in opening the file.

Note

Some applications have an internal file size limit and may not load the entire file. Check the application’s specifications prior to use.

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Table 11. Datalogger Status Codes

Codes Explanation

General Codes

— Normal operation

G Backlight is on

Sensor Codes

L Low alarm

H High alarm

T TWA alarm

s STEL alarm U Dual alarm (Low and TWA alarms) V Dual alarm (High and TWA alarms)

u Dual alarm (Low and STEL alarms)

v Dual alarm (High and STEL alarms) w Dual alarm (TWA and STEL alarms) O Sensor is over-ranged C Calibrating

F Sensor failure

1 Alarm setpoint 1 (Low alarm)

2 Alarm setpoint 2 (High alarm)

3 Alarm setpoint 3 (TWA alarm)

4 Alarm setpoint 4 (STEL alarm)

Codes Explanation

D Calibration due date (in days) E Last calibration (in days)

Z Auto-zeroing

Pump Codes

P Pump alarm

F Pump failure

Battery Status Codes

— Battery OK

B Low battery alarm K Confidence beep is active

larm Status Codes

L Low alarm

H High alarm

T TWA alarm M Multi-gas alarm C Calibration Q Manual shutdown

P Pump alarm

S Automatic shutdown

F Self-test fail R Real-time clock failure

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When datalogger information is imported into most spreadsheet software, it will appear similar to the example below (line numbers are included here for clarity).

Table 12. CSV File Example

Line

1 3/5/04 #1 19:17:14 10 35 -- -- -- -- 33------ 0521871 2 3/5/04 #1 19:17:19 15 50 -- -- -- -- 44------ 0521871 3 3/5/04 #1 19:17:36 10 35 10 19.5 -- -- 1111---- 0521871 4 3/5/04 #1 19:17:53 15 200 20 23.5 -- -- 2222---- 0521871 5 3/5/04 #1 19:17:58 -- 172 -- 8 -- -- -D-E---D 0521871 6 3/5/04 #1 19:18:03 0 0 0 20.9 0 0 -------- 0521871 7 3/5/04 #1 19:18:09 0 0 5 20.9 0 0 -------- 0521871 8 3/5/04 #1 19:18:13 12 21 7 20.9 0 0 L------L 0521871 9 3/5/04 #1 19:18:19 16 30 9 20.9 0 0 H------H 0521871

10 3/5/04 #1 19:18:23 20 37 10 20.9 0 0 HLL----M 0521871 11 3/5/04 #1 19:18:28 -- --- -- --.- - - ----P--P 0521871 12 3/5/04 #1 19:18:33 0 0 0 20.9 0 0 ------B- 0521871 13 3/5/04 #1 19:18:38 0 0 0 20.9 0 0 ------BS 0521871

Date

(dd-mm-yy)

Day

(Mon=1)

Time

(hh:mm:ss)

H2S

(ppm)

LEL

(%LEL)

(%)

H2S TWA

(ppm)

CO TWA

(ppm)

Unit

status

Serial

number

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This example shows the following information: Line 1 shows the TWA alarm setpoints (code 3) for H

S and

CO. Line 2 shows the STEL alarm setpoints (code 4) for H

S and

CO. Line 3 shows the low alarm setpoints (code 1) for all the

sensors. Line 4 shows the high alarm setpoints (code 2) for all the

sensors. Alarm points are only recorded when the unit is turned on, indicating the unit has just been activated.

Line 5 shows the number of days remaining before calibration is due and the days since the last calibration.

Lines 6 and 7 show normal operation – no gas readings or alarms.

Line 8 shows an H

S low alarm. CO and LEL gases are

present below alarm levels. The unit is in low alarm. Line 9 shows the H

S sensor in high alarm. The unit is in

high alarm. Line 10 shows the H

S sensor in high alarm and the CO and

LEL sensor in low alarm. The unit is in multi-gas alarm. Line 11 shows the unit in pump alarm. The sampling pump

has been blocked and gas readings are not available. Line 12 shows the unit emitting a low battery alarm. There

are no gas alarms. Line 13 shows the unit automatically shutting down because

of a low battery. The battery is low and the unit is sounding an automatic shutdown alarm.

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Maintenance

To keep the detector in good operating condition, perform the following basic maintenance as required:

• Calibrate, test, and inspect the detector at regular intervals.

• Keep an operations log of all maintenance, calibrations, tests, and alarm events.

• Clean the exterior with a soft damp cloth. Do not use solvents, soaps, or polishes.

• Do not immerse the detector in liquids.

Replacing the Battery

a Warning

To avoid personal injury:

• Replace the battery as soon as the detector emits a low battery alarm.

• Use only a Black & Decker VersaPak™ battery, properly installed in the detector case.

• Only charge batteries using a VersaPak™ charger (such as the D4-VP130 or V-CHRG1). Do not use any other charger. Failure to observe this precaution could lead to fire or explosion.

• Do not change or charge batteries in a hazardous location. Doing so will impair the intrinsic safety of the unit and may lead to fire or explosion.

• Before you use the detector for the first time, fully charge the battery by following the instructions provided with the charger.

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The following table and figure illustrate how to replace the battery. If the detector is on, shut down the detector before replacing the battery. Push the release button; the battery pulls out and snaps back in.

Table 13. Replacing the Battery

Item Description

A Detector front B Release button C Battery

Note

To preserve the battery life, turn the detector off when you are not using it.

Figure 4. Replacing the Battery

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Replacing a Sensor, Pump, or Pump Filter

aWarning

To avoid personal injury, use only sensors specifically designed for the detector. See the section,

Each sensor has a high degree of resistance to common vapors and gases. A sensor will most likely clear itself if you remove the detector to a clean environment and wait 10 to 30 minutes. Do not expose a sensor to the vapors of inorganic solvents (e.g., paint fumes) or organic solvents. The

Troubleshooting section describes problems caused by

a sensor in need of calibration or replacement. The internal pump draws air over the sensors. If the pump

stops working or the pump filter becomes clogged, the detector activates the pump alarm. Turn off the detector immediately.

Replacement Parts and Accessories.

Pump Filter

Check if the pump filter is clogged by viewing the pump filter through the window on the back of the detector. Clean the filter using a soft, clean brush and clean, warm water. Let the filter dry before replacing it.

If the pump alarm activates a second time, insert a new pump filter. If the alarm activates with the new filter in place, contact

BW Technologies.

Replacing/Adding a Sensor

A GAMAX3-2 (2-gas: O2, LEL) or GAMAX3-3H (3-gas O2, LEL, H gas unit. Install the desired H sensor (this must be done outside the potentially explosive atmosphere). Refer to the section.

S) detector can be upgraded in the field to a 3 or 4-

S or Twin Tox (CO/H2S)

Sensor Enable/Disable Option

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The following table and figure illustrate how to replace a sensor, pump, or pump filter. If the detector is on, shut down the detector. Use a Phillips head screwdriver to loosen and tighten any screws.

Do not use excessive force when removing or inserting the sensor, or the sensor can be damaged. Gently rocking the sensor back and forth can help free a tightly held sensor. Insert the new sensor in the corresponding labeled compartment.

Table 14. Replacing a Sensor, Pump, or Pump Filter

Item Description

A Detector back screws B Sensor and pump cover C Pump filter window D Pump filter and o-ring E Pump F Sensors

Figure 5. Replacing a Sensor, Pump, or Pump Filter

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Troubleshooting

The detector’s electronics are protected from variations in humidity and corrosive atmospheres. If you encounter a problem, try the solutions listed in the following table.

Table 15. Troubleshooting Tips

Problem Possible Cause Solution

The detector does not turn on. → No battery

→ Depleted battery → Damaged or defective detector

The detector enters alarm immediately when it is turned on.

→ Sensor needs to stabilize

→ Low battery alarm → Sensor alarm → Pump alarm

If you still are unable to correct the problem, contact

Technologies.

→ Install battery → Replace battery

→

Contact BW

→ Used sensor: wait 60 seconds

New sensor: wait 5 minutes

→ Replace battery → Replace sensor → If the sampling hose is attached,

determine if it is obstructed. If it is not, clean or replace the pump filter. If this does not work, see the section or

contact BW.

Pump Alarm

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Table 15. Troubleshooting Tips (cont.)

Problem Possible Cause Solution

The activation self-test fails during one of the checks.

The detector does not display normal ambient gas reading after the activation self-test.

The detector does not respond to the pushbuttons.

The detector does not accurately measure gas.

→ General fault → Contact BW

→ Sensor not stabilized

→ Detector requires calibration → Target gas is present

→ Battery is depleted → Detector is performing operations

that do not require user input

→ Detector requires calibration → Detector is colder/hotter than

ambient gas

→ Sensor screen is blocked

→ Used sensor: wait 60 seconds

New sensor: wait 5 minutes

→ Calibrate detector → Detector is operating properly. Use

caution in suspect areas.

→ Replace battery → Pushbutton operation restored

automatically when the operation ends

→ Calibrate detector → Allow detector to acquire ambient

temperature before use

→ Clean sensor screen

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GasAlertMax

User Manual

Table 15. Troubleshooting Tips (cont.)

Problem Possible Cause Solution

The detector does not enter alarm. → Alarm setpoint(s) are set

incorrectly

→ Alarm setpoint(s) set to zero → Detector is in calibration mode

The detector intermittently enters alarm without apparent reason.

→ Ambient gas levels are near alarm

setpoint or the sensor is exposed to a puff of the target gas

→ Alarms set incorrectly → Missing or faulty sensor

The detector automatically shuts off. → Automatic shutdown feature

activated due to weak battery

Unit will not auto zero or calibrate. O

sensor reading is erratic.

sensor replacement may not

→ O

be compatible

→ Reset alarm setpoints

→ Reset alarm setpoints → Complete the calibration procedure → Detector is operating normally. Use

caution in suspect areas. Check maximum gas exposure reading.

→ Reset alarm setpoints → Replace sensor → Replace battery

→ Change O2 sensor

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GasAlertMax Replacement Parts and Accessories

Replacement Parts and Accessories

a Warning

To avoid personal injury or damage to the detector, use only the specified replacement parts.

To order parts or accessories, contact

Table 16. Replacement Parts and Accessories

Model No. Description Qty

D4-VP130 D4-VP130-(UK) D4-VP130-(EU) D4-VP130-(AU) V-CHRG1 VP-160-EU

VP-160-UK

GA-VP110 VersaPak™ battery,

D4-VP100 VersaPak™ battery,

GA-HMAX Holster 1

110 VAC battery charger 230 VAC charger U.K. 230 VAC charger Europe 230 VAC charger Australia 12 volt vehicle charger 4-port VersaPak 230 VAC

charger Europe 4-port VersaPak 230 VAX

charger U.K.

Rechargeable: NiMH

Rechargeable: NiCd

BW Technologies.

Model No. Description Qty

GA-BMAX-#

(# = 2-7)

GA-WS-2

GA-PFMAX Pump filter 5 M2325 GA-RPMAX MMC32

MMC64

DOOR1-K10 GAMAX3-DL2 single use card

D4-RHM04 Replacement H2S/CO (Twin

SR-X10 Replacement O2 (2 year)

SR-W04 Replacement LEL sensor 1 PS-RH04S Replacement H2S sensor 1 D4-HSP-10 Sampling hose (10 ft./3 m) 1

Concussion-proof boot carrying case

Wrist strap, nylon for concussion-proof boot

Pump gasket Replacement pump 32 MB MultiMediaCard (MMC)

(>4 months of data)

64 MB MultiMediaCard (MMC)

(>8 months of data)

lock doors

Tox) sensor

sensor

1 1 1

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GasAlertMax

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Model No. Description Qty

M1806 Replacement tygon tube for

sampling hose

M0931K Quick connector spares for

sampling hose

GA-CPROB1

Collapsible sample probe with handle

GA-TPROB6

Telescopic sample probe (6.5 ft./2 m)

GAMAX-CK

Confined space kit without detector

D4-PROB#

(# = 1, 3, 6)

CR-MMC-USB1

Search probe with handle and quick connect

MMC USB reader with software 1 CG-Q34-4 Quad gas cylinder (34 l) 1 CK-Q34-4 Quad calibration kit (34 l) 1 CG-Q58-4 Quad gas cylinder (58 l) 1 CK-Q58-4 Quad calibration kit (58 l) 1 CG-BUMP1 “Bump” alarm test gas aerosol 1 REG-0.5 Regulator (0.5 l/min) 1

/ft.

/0.3m

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GasAlertMax Specifications

measuring principle: Capillary controlled concentration

Specifications

Instrument dimensions: 40 x 75 x 150 mm (1.6 x 3.0 x 5.9 in.)

Weight: 396 g (15.4 oz) Operating temperature: -20°C to +50°C (-4°F to +122°F)

sensor

Pump flow rate: 250 ml/min (minimum) Detection techniques:

S and CO: TWA, STEL, low, and high alarms

and LEL: Low and high alarms

Storage temperature: -25°C to +55°C (-13°F to +131°F)

Alarm conditions: TWA alarm, STEL alarm, low alarm, high

alarm, multi-gas alarm, sensor alarm, pump alarm, low

Operating humidity: 5% to 95% relative humidity

battery alarm, confidence beep, automatic shutdown alarm.

(non-condensing) Operating pressure:

95 to 110 kPa (LEL) 80 to 120 kPa (O 90 to 110 kPa (CO, H

)

Alarm setpoints: May vary by region and are user settable Detection range:

CO: 0 - 500 ppm (1 ppm increments)

S: 0 - 100 ppm (1 ppm increments)

: 0 - 30% (0.1% increments)

Audible alarm: 95 dB at 1 ft (0.3 m) variable pulsed beeper Visual alarm: Red light-emitting diode (LED) Display: Alphanumeric liquid crystal display (LCD) Backlight: Automatically activates whenever there is

insufficient light to view the display and during alarm conditions.

Self-test: Initiated at activation

LEL: 0 - 100% LEL (1% LEL increments) Sensor type:

S/CO: Twin plug-in electrochemical cell

: Plug-in electrochemical cell

LEL: Plug-in catalytic bead

Calibration: Automatic zero and automatic span Oxygen sensor: on activation (if enabled in the user options menu)

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GasAlertMax

User Manual

User enable/disable options: Confidence beep, latching alarm, pass code protect, automatic O startup (supplied by manufacturer with these options disabled); set calibration due date; set STEL calculation period, set span concentration values, adjust clock calendar, language selection, and sensor disable.

Approved batteries: Black & Decker VersaPak™ NiCd (VP-100) rechargeable battery Black & Decker VersaPak™ NiMH (VP-110) rechargeable battery

Area NiCd (VP-100) NiMH (VP-110) North America T4 (131.6°C) T4 (134.6°C) Europe T4 T3 (184°C) Australia T3 T2 (213°C)

Battery charger: Black & Decker VersaPak™ VP130 charger

Battery operating time: NiCd: 8 hours NiMH: 10 hours

calibration at startup, automatic pump test at

First-time charge: NiCd: 6 hours for two batteries NiMH: 12 hours for two batteries

Normal charge: NiCd: 3-4 hours for two batteries NiMH: 12 hours for two batteries

Approvals: Approved by CSA to both U.S. and Canadian Standards

Approved: Class I, Division 1, Group A, B, C, and D; Class I, Zone 0, Group IIC

ATEX: CE 0539 g II 2G LCIE 02 ATEX 6103 X EEx ia d IIC 184°C

AUS: Ex ia s IIB Ambient 40°C ** Oxygen alarm setpoints for user selectable low and high

alarms are in the 0-25.5% range.

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GasAlertMax Specifications

Performance data according to EN 45544 Part 1 and 2:

Target Gas CO H

Time of response 19 s 25 s Time of recovery 22 s 15 s Alarm response time ≤5 s ≤4 s Zero variation 4 ppm (v/v) 0 ppm (v/v) Overall uncertainty 7% 10% Lower limit of the measuring range 2 ppm (v/v) 0 ppm (v/v) Drift under zero gas (3 month) 0 ppm (v/v) 0 ppm (v/v) Drift under standard test (3 month) 2 ppm (v/v) 2 ppm (v/v) Maximum calibration period 3 month 3 month

General Specifications for Datalogger Units

Media type: MMC (MultiMediaCard) Size: 32 MB (standard); 32 and 64 MB cards available Storage:

500,000 lines of data (32 MB)

4.5 months (based on a normal work week) Memory type: Wrap-around memory ensures most recent

data is always saved

Sample rate: One reading every 5 seconds (standard) Data recorded: All sensor readings, all alarm conditions,

calibrations, event flags, battery status, sensor status, confidence activation, sampling pump status, and product status along with the time and date for each reading and unit serial number.

MMC card test: Automatically on activation

Not part of BAM certification

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GasAlertMax

User Manual

GasAlertMax with Black Box Datalogger

Operation: Requires no user intervention Continuous: Full time continuous datalogging while the

detector is operating Access: Data cannot be accessed or manipulated by the

user

Data retrieval: Authorized factory representative if required Advise indicators: Icon advises datalogger operating status Card alarm: MMC failed or missing

GasAlertMax with User Downloadable Datalogger

Operation: Requires no user intervention (automatic) Indicators: Icon advises datalogger is operating normally,

MMC missing/malfunction advise and card in/out advise.

Compatible with: Desktop PC computer or laptop Operating system: Windows 95 or higher

Download via: USB, parallel port, floppy disk, or PC card

adapter. Software required: Spreadsheet or database compatible

with comma-separated-value (CSV) text files (e.g., Excel, Access, Quattro, etc.)

Card alarm: MMC fail or missing

Support:

BW E.D.M. (Excel Datalog Manager): E.D.M. is an Excel software add-in that enhances the abilities of Microsoft Excel when handling GasAlertMax User Downloadable Datalogger data files. Refer to the EDM help file for more information.

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