WatchGas PDM Bedienungsanleitung

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PDM Single Gas Detector

User Manual

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PDM Single Gas Detector User Manual

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Contents

Contents 2

Description 3

Warning 3

Caution 3

1 Product Overview 4

2 Activation 5

2.1 Check Activation Date 5

2.2 Serial Number 5

2.3 Getting 24 months of use 5

2.4 Activation 5

3 Mode 6

3.1 Detection Mode 6

3.2 Display Mode 6

3.3 Alarms / Battery / Test Failure display 7

3.4 Alarm Set Points 8

3.5 Default Calibration Concentrations 8

4 Event Log 8

5 Calibration 9

5.1. Fresh Air Calibration 9

5.2. Standard Gas Calibration 10

5.3. Return to the Detecting Mode 10

6 Self Test & Bump Test 11

6.1. Self Test 11

6.2. Bump Test 11

7 Specications 12

8 Certicates 13

9 Limited Warranty 14

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User Manual Single Gas Detector PDM

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Description

The PDM is a portable multigas monitor designed to warn the user about the presence of dangerous

concentrations of oxygen, combustible, or toxic gases in the atmosphere. It is simple to operate. The

PDM alerts the workers to danger through acoustic alarm, ashing LEDs, and vibration when the

concentration exceeds the safety gas levels. The PDM shows the gas concentration in real time and

identies the maximum and minimum concentration. The settings values can be modied through the

optional WatchGas IR-Link.

Warning

• Any unauthorized attempt to repair or modify the product and any cause of damage beyond the

intended use voids any warranty and liability.

• Activate the product only if sensor, display, and beeper port are clear from contaminants, dirt, dust

and debris. Remove any debris on the surfaces of the sensor, LED or beeper port before use.

• Test the performance of the gas sensor regularly.

• Test the products functioning of LEDs, alarm and vibration on a regular basis.

• Use the product under the conditions instructed, including the temperature, humidity and

pressure range. Use in other conditions may cause malfunction or failure.

• The sensor inside the device may indicate the gas concentration dierently according to the

environment such as temperature, pressure and humidity. Calibrate the detector under the same

or similar conditions in which it will be used.

• Extreme changes in temperature may cause drastic changes of the gas concentration. (e.g. using

the detector where there is a huge gap between the inside and outside temperature). Wait for the

concentration to become stable before use.

• Severe pressure or impact may cause drastic changes of the gas concentration. Therefore, use the

device when the concentration is stable. Severe pressure or impact may cause malfunction in the

sensor or the device.

• The alarms are set according to international standards and must be changed by an authorized

expert.

• Do not attempt to replace the battery and sensor. The PDM is a disposable product.

• IR communication should be done in a safe area where there is no risk of explosion or re.

• Incorrectly changing settings in the available software with IR-link may pose a risk, which can

result in trauma or death.

Caution

• Only use the device after reading and understanding this manual!

• This product is not a measurement instrument, but a gas detector.

• Cease use and consult the manufacturer if the calibration or self-test fail continuously.

• Perform a fresh air calibration in clean air without gases at least every 30 days.

• Do not activate the product past the activation date.

• Clean the exterior of the device with soft cloth and do not clean it with chemical detergent.

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PDM Single Gas Detector User Manual

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1. Product Overview

DETECTOR COMPONENTS

1. Gas sensor

2. Gas type sticker

3. LCD display

4. Key

5. Beeper port

6. Alarm LEDs

7. IR port

DISPLAY SYMBOLS

Alarm

Low Alarm

High Alarm

Firmware Version

Stabilization Fail

Fresh Air Calibration

Standard Gas Calibration

Remaining Months

Remaining Days

Remaining Hours

Max Concentration Value

Min Concentration Value

Unit of Measurement

Lifetime less than 30 days or

low battery

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User Manual Single Gas Detector PDM

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2. Activation

2.1 CHECK ACTIVATION DATE

The activation date is printed on the box. Do not activate past the activation date.

2.2 SERIAL NUMBER

The serial number gives the following information:

WG stands for WatchGas. I = 2018, J = 2019, K = 2020 etc.

2.3 GETTING 24 MONTHS OF USE

The battery and the sensor of the PDM are not replaceable. Make sure the battery doesn´t get drained

before the 24 months are over. To reach 24 months of use:

• Only push the key when needed

• Do not allow the PDM to be in alarm situations for more than 2 minutes a day.

• Connect to IR-Link only when necessary.

2.3 ACTIVATION

Press and hold down the key ( ) for three seconds, after the three second countdown the

monitor will turn on. Gas type and rmware version (eg. v2.2) will be displayed. During a 10 seconds

countdown, the device will stabilize itself. After stabilization is complete, will appear on the display

screen and the device will move to the detection mode.

Caution

Although the PDM is calibrated before it leaves the factory, a proper calibration is advisable

before using it at the work site. The user should check whether the device is properly

detecting hazardous concentrations and make sure that the detecting section of the device

is not blocked with materials impairing the detection.

2020 (Year) 01 (Month) 01 (Day) 001 (Batch number)

WG-K0101001

In the event that stabilization of the device fails, will appear on the

display and gas measurement mode will not be entered. In this case,

perform calibration or contact authorized reseller for repair/return

information.

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PDM Single Gas Detector User Manual

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3. Mode

3.1 MEASUREMENT MODE

When activated, in the detection mode, gas concentration or remaining

battery life appears on the screen. Oxygen concentration is displayed in

percent by volume (%VOL) and toxic concentration is displayed in parts per

million (ppm).

3.2 DISPLAY MODE

In the Detection Mode, by pressing pushbutton for one second, the following icons will appear in

order:

(only for oxygen) -> -> CLR -> Remaining Life time( , , ) ->Low alarm set point ->High

alarm set point -> Firmware version -> Calibration Concentration

At the last step, if you press the key or do not push any button for a second, the PDM will return to

Detection Mode.

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User Manual Single Gas Detector PDM

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3.3. ALARMS / BATTERY / TEST FAILURE DISPLAY

When a gas concentration exceeds alarm set points, or will be displayed and the device will

vibrate, ash its LEDs, and beep. To stop alarms, evacuate immediately to a clean air location.

When bump test or calibration failed, will be displayed and the PDM will beep intermittently.

Alarm Alarm standard LCD Display Alarm and Vibration

Low alarm Gas concentration

exceeds low alarm

threshold

+ concentration

High alarm Gas concentration

exceeds high alarm

threshold

+ concentration

Remaining Life Less than 30 days

End of life Past 24 months Lifetime is over. Replace PDM.

Test Failure Failure of sensor test,

calibration or self-test

Battery Low

Bump Test Due Bump test period Press the button to turn o the alarm

Calibration Due Calibration period Press the button to turn o the alarm

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PDM Single Gas Detector User Manual

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Caution

The alarm limits are set based on international standards. Only change these levels to make

them conform to local rules and regulations.

3.4. ALARM SET POINTS

Gas O2CO H2S H2SO2Cl2NH3NO2

Low alarm 19% 25 ppm 5 ppm 100 ppm 1 ppm 1,5 ppm 20 ppm 5 ppm

High Alarm 23% 25 ppm 5 ppm 100 ppm 1 ppm 1,5 ppm 20 ppm 5 ppm

3.5. DEFAULT CALIBRATION CONCENTRATIONS

GaS O2CO H2S H2SO2Cl2NH3NO2

Concentration 0,0% Vol.

(99,9% N2)100 ppm 50 ppm 500 ppm 10 ppm 10 ppm 100 ppm 10 ppm

4. Event Log

Last 30 events are stored on the PDM. Once 30 events are stored, the oldest log events get

overwritten. Stored log events can be transferred via WatchGas-IR Link.

Each alarm event is recorded as follows:

Types of alarms

Alarm concentration in ppm or %

Peak concentration

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User Manual Single Gas Detector PDM

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5. Calibration

5.1. FRESH AIR CALIBRATION

Press and hold the key for 5 seconds to enter the calibration mode ( ), icon and ‘CAL’ mark will

appear on the LCD.

Press the key for three seconds to initiate calibration. When calibration begins, a countdown (starting

at 10) will appear on the screen.

Caution

Initial calibration is performed on all devices prior to shipment. Once received, calibration

should be regularly depending on frequency of use.

Once completed, will appear on the LCD.

If calibration fails, will appear on the LCD.

Check that the air is clean and that no contaminants are

blocking the sensor opening and try again. If fresh air

calibration fails repeatedly, contact WatchGas.

Caution

Calibration should be performed in a fresh-air environment that is free for any contaminants

and other gases. Preferably, do not perform calibration in a conned space.

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PDM Single Gas Detector User Manual

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5.2. STANDARD GAS CALIBRATION

Attach the calibration adapter to the PDM and to a gas cylinder with a concentration matching the

calibration concentration. Check 3.1. Display Mode to check the calibration concentration.

Press and hold the key for 5 seconds to enter calibration mode ( ), icon and ‘CAL’ mark will appear

on the LCD. Press the key again for a second, to switch to standard gas calibration, appears.

Start the ow of the gas cylinder by opening the valve.

Press the key for three seconds to initiate calibration. When calibration begins, a countdown will

appear on the screen. The duration of the countdown depends upon the sensor type.

5.3. RETURN TO THE MEASUREMENT MODE

In the standard calibration mode , press the key for a second to toggle fresh air calibration, standard

calibration, and ESC. In the ESC mode, press the key for 3 seconds, the PDM will get out of the

calibration mode and return to detection mode.

Once completed, will appear on the LCD. After a few

seconds, the PDM will return to detection mode.

If calibration fails, will appear on the LCD.

Check that the gas cylinder is not empty and that is has not

expired. Also make sure that no contaminants are blocking the

sensor opening and try again. If standard gas calibration fails

repeatedly, contact WatchGas.

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