Black & Decker MULTI-GAS DETECTORS Manuel de l'opérateur télécharger pdf (Page 32)

Page 9

WRIST STRAP

1. Thread the split ring onto the silver

lanyard anchor located on the

bottom back of the unit. Attach the

strap to the split ring. The strap has

a break away safety feature.

BW DEFENDER KEYPAD

GENERAL:

All operating features and functions are

activated by the rubber keypad. The

keypad operation is designed to prevent

accidental activation of any function.

The BW DEFENDER will advise you

each time a function is accessed, and

when automatic functions, are taking

place. Press the keys down firmly. Each

button has multiple functions, which are

discussed in the appropriate sections of

this manual.

TROUBLESHOOTING

This section lists some common errors and their solutions. If you are unable to solve

the problem, please contact BW Technologies for assistance.

Problem Possible Cause Solution

Unit will not turn ON. No battery.

Battery is dead.

Unit is damaged or defective.

Install battery.

Replace and/or recharge battery.

Contact BW.

Display doesn't show

CO or H

2

S

measurements.

This is a 2-gas version

BW DEFENDER, which does not

measure toxic gases.

Contact BW for kit to upgrade to

the, 4-gas version (D4-2002).

Unit does not display

TWA measurements.

This is a 2-gas version

BW DEFENDER, which does not

measure toxic gases.

Contact BW for kit to upgrade to

the 4-gas version.

Unit does not enter

alarm.

Alarm points are set incorrectly.

Alarm setpoint(s) may be set to

zero (off).

Unit is in calibration mode.

Reset alarm setpoints to correct

values.

Reset alarm setpoints to correct

values.

Recalibrate unit immediately.

Unit enters alarm

immediately when

turned on.

Sensors are not yet stable.

Battery warning alarm -

battery is weak.

Sampling pump is plugged.

Sensor is missing from unit;

or defective sensor.

Wait for 60 seconds.

Replace/recharge battery.

Remove obstruction.

Replace sensor.

Unit does not respond

to keypad.

Battery is dead.

Unit is performing operations that

require no user input.

Replace and/or recharge battery.

Keypad operation will be

automatically restored at the

appropriate time.

Unit does not

accurately measure

gas.

Unit requires recalibration.

Unit is colder/hotter than gas

being measured.

Sensor screens are clogged and

dirty.

Sensor(s) require(s) replacement.

Sensor is missing from unit.

Recalibrate unit.

Allow unit to acquire ambient

temperature before use.

Clean sensors.

Replace sensor(s).

Replace sensor.

Unit does not display

maximum level of

oxygen detected.

Peak detection for oxygen:

displays the lowest value, not the

highest value detected.

Unit is operating normally.

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