Sensit PMD2 Bedienungsanleitung

851 Transport Drive • Valparaiso, IN 46383 (USA)

Phone: 219.465.2700 • www.gasleaksensors.com

INSTRUCTION MANUAL

READ AND UNDERSTAND INSTRUCTIONS BEFORE USE.

For use with combustible gases and optionally available oxygen and toxic gases.

SENSIT®PMD2

PORTABLE METHANE DETECTOR

FOR YOUR SAFETY

⚠NOTICE: This safety symbol is used to indicate a potentially

hazardous situation which, if not avoided, may result

in minor or moderate injury.

⚠ WARNING: To reduce the risk of ignition of a flammable

atmosphere, batteries must only be changed and

charged in an area known to be nonflammable.

⚠ WARNING: Do not mix batteries of different age or type.

⚠ WARNING: Not for use in atmospheres of oxygen greater than

21%.

⚠ WARNING: Only zero the instrument in a gas free environment.

⚠ WARNING: To maintain intrinsic safety, service must be

performed by factory authorized technicians with

approved replacement parts only. No substitution of

components is permitted.

⚠ WARNING: All accessories are to be used in an area known

to be non-flammable.

⚠ WARNING: To prevent ignition of flammable or combustible

atmospheres, disconnect power before servicing.

CONTENTS

FOR YOUR SAFETY�� 3

QUICK START GUIDE�� 6

PRODUCT FEATURES: HARDWARE�� 7

RECHARGEABLE BATTERY AND CHARGING STATION.............................. 7

PUMP AND SAMPLING SYSTEM ............................................................. 7

LED BARS............................................................................................. 8

PRODUCT FEATURES: SOFTWARE�� 9

WORK DISPLAY OPTIONS ..................................................................... 9

LEL DEFINITION.................................................................................... 10

ALARMS .............................................................................................. 10

OPERATION AND USE�� 11

POWER-ON AND STARTUP SEQUENCE.................................................. 11

BUMP TESTING AND CALIBRATION ....................................................... 11

THE WORK DISPLAY.............................................................................. 12

FILTER INTEGRITY AND FLOW BLOCK CHECK ......................................... 12

READY FOR USE ................................................................................... 12

POWER OFF & BATTERY CHARGING...................................................... 13

QUICK MENU TEST MODES �� 14

TICK .................................................................................................... 15

BAR HOLE TEST .................................................................................... 16

STANDBY MODE .................................................................................. 17

PEAK MODE ........................................................................................ 18

USER MENU �� 19

SET DATE ............................................................................................. 20

SET TIME.............................................................................................. 21

TIME ZONE.......................................................................................... 22

BUMP TEST........................................................................................... 23

CALIBRATION....................................................................................... 24

CAL LOG ............................................................................................. 25

SESSION LOG ...................................................................................... 26

BAR HOLE LOG .................................................................................... 27

CALIBRATION NEXT DUE....................................................................... 28

BAR HOLE PURGE THRESHOLD .............................................................. 29

NOTES �� 30

EQUIPMENT (WEEE) DIRECTIVE �� 31

WARRANTY �� 32

QUICK START GUIDE

1. Remove the instrument and rechargeable battery pack from the carrying case. If the battery

pack is not installed, install the battery into the instrument by sliding it in place, and install

the screws.

2. Press and hold the Abutton until the instrument powers on. The LED bars will illuminate

and the SENSIT logo will be shown on the display.

3. In clean air, allow the instrument to go through the startup sequence, warmup, and Autozero.

This typically takes 45 seconds or less but can take up to 5 minutes.

4. Anautomaticowblocktestmaybepromptedduringstartup.Ifso,placeyourngerover

the inlet at the end of the inlet and wait until the test passes. This should happen within 5

seconds.Ifowblockcannotbeachievedmakesurethelterisinstalledtightontheinlet

capandreplacetheO-ringonthelter,contactSENSIT Technologies for assistance.

 Iftheautomaticowblocktestisnotpromptedduringstartup,performthistestafterthe

Autozero is complete and the work display is shown.

FLOW BLOCKED

will be displayed.

NOTE: If any FAIL messages occur during the Autozero, ensure that the instrument is in clear

air, and attempt the zero again by pressing and holding the Cbutton until

AUTOZERO

is shown on the display. Contact SENSIT Technologies if the instrument cannot pass the

Autozero.

4. The work display will be shown with the gas reading. Once this is shown with no fail

messages,andaowblockcheckhasbeensuccessful,youarereadytousetheinstrument.

5. Following federal, state, municipal, and/or company procedures, conduct the leak

investigation, survey, or other procedures as needed. See the Operation and Use and

Quick Menu Test Modes sections in the instruction manual for detailed information.

6. If the source of an odor or known leak needs to be pinpointed, use the

TICK

feature. To

enable, press and release the Bbutton to enter the

QUICK

. Press and release the

Bbutton again to enable

TICK

An audible ticking sound will be heard. Move the end of the probe or tubing towards the

area suspected of leakage. As you get closer to the source, the tick rate will increase. Press

and release the Bbutton or roll back the thumb wheel to decrease the tick. Press and

release the Abutton to deactivate.

7. To zero out very small levels of gas, press and hold the Cbutton until

AUTOZERO

shown on the display. This should only be done to set the instrument zero to your working

environment,(e.g.tozerooutasmalllevelofCOonastreetwithheavyvehicletrafc).The

instrument will not allow a zero if unsafe levels of gas are present and will show a fail message.

Note: If the PMD2 is set to show absolute readings instead of relative, performing an

Autozero will not zero the instrument to 0ppm.

8. When your investigation is complete, press and hold the Abutton until the instrument

displays

POWER OFF SHUTDOWN.

PRODUCT FEATURES: HARDWARE

RECHARGEABLE BATTERY AND CHARGING STATION

The SENSIT PMD2 comes standard with a rechargeable battery pack. This battery pack is

installed in the body of the instrument and secured with a door and two screws. The battery

pack can be charged while still installed in the instrument, or when removed, with the included

charger. The charger has status LEDs on it to indicate the charging status of the battery.

PUMP AND SAMPLING SYSTEM

All SENSIT PMD2 instruments are equipped with a powerful and efficient pump operates at

1.0 L/min,1.5 L/min, or 2.0 L/min, depending on what is specified at the time of order.

A 0.45 micron hydrophobic dirt and water filter installed in the inlet assembly protects the

internals of the instrument from foreign material. There is an additional internal filter that also helps

to protect the internals from larger damaging debris. If water or dirt does enter the instrument

causing the flow to be restricted, a flow blocked message will be displayed.

⚠ WARNING: Operating the SENSIT PMD2 with a damaged or altered filter can

cause damage to the instrument and void the warranty.

LED BARS

The LED bars on the SENSIT PMD2 display different colors and patterns to alert the operator

of various conditions. See the chart below for information on each�

COLOR INDICATION

Solid Green “Ready” indication. No current alarm condition or failure.

Blinking Green Low battery indication. The work display will also give an indication on screen to alert

the operator.

Blinking Red 1. Any alarm conditions.

2. Sensor failure/fault.

Solid Blue Busy, not in gas detection mode (e.g., viewing logs, SMARTLINK,

SMART-CAL 360 Communication)

PRODUCT FEATURES: SOFTWARE

WORK DISPLAY OPTIONS

COMBUSTIBLE GAS SCALE AND RESOLUTION

The combustible gas reading will be automatically displayed in one of three options on the

SENSIT PMD2: PPM, %LEL, or %VOL. By default, the reading starts in the PPM scale (from

0.0ppm) and will automatically switch to %LEL above 5000ppm (configurable) and then to %VOL

above100%LEL (equal to 5.0%VOL by default, see the section on LEL Definition).

If the PPM option is enabled, the PMD2 will instead start at 0.0PPM or an absolute value,

and automatically scale to either %LEL (if enabled) or %VOL at the specified upper limit. By

default, this is 2,000PPM. Other options are 5,000PPM, 10,000PPM, or 50,000PPM. If set to

50,000PPM, the PMD2 will not scale to %LEL even if it is enabled, because at the highest LEL

Definition, 50,000PPM is equal to 100%LEL.

In addition, the display resolution for the PPM and %LEL scales are customizable. The default

display resolutions and options for each scale, while on the work display, are listed below.

DEFAULT RESOLUTION

PPM 0.1PPM 0.1PPM, 1PPM or 10PPM

%LEL 0.1%LEL 0.1% - 2.0%LEL

[0.1% increments]

%VOL <5.0%VOL: 0.01%VOL

≥5.0%VOL:0.1%VOL Not adjustable

LEL DEFINITION

By default, the SENSIT PMD2 defines the lower explosive limit (LEL) as 5.0%VOL methane. This

is factory adjustable between 4.0% and 5.0% for methane in 0.1% increments, based on

company or industry requirements. This will affect how the instrument displays the %LEL scale. For

example, if the LEL definition is 4.0%VOL, 2.5%VOL methane will display as 62.5%LEL. See the

chart below for examples for natural gas�

ALARMS

The SENSIT PMD2 has audible and visual alarms to warn the operator when hazardous

conditions are being sensed. The alarm setpoints specific to the work display and are outlined

below. The LED bars on the PMD2 changes color based on alarm conditions. See the following

sections for information on each.

WORK DISPLAY ALARMS

WORK DISPLAY

ALARM SETPOINTS

DEFAULT

LEL 50.0%LEL

EX - PPM 10PPM

UEL SETPOINTS DEFAULT

NAT 17.0%VOL

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