Wohler M 603 Manuel utilisateur

The Measure of Technology

Operating Manual

Pressure Meter

Part 1

Order No. 24811– 2023-01-18

Wöhler M 603

General information

Contents

1General information..............................4

1.1 Initial start-up................................................. 4

1.2 Information about this operating manual ....... 4

1.3 Notes............................................................. 4

1.4 Intended use ................................................. 4

1.5 Components.................................................. 5

1.6 Transportation............................................... 5

1.7 Disposal ........................................................ 5

1.8 Manufacturer................................................. 6

2Important information ..........................6

3Specification..........................................7

3.1 Measured values........................................... 7

3.2 Calculated values.......................................... 9

3.3 Logger function ........................................... 10

3.4 Technical data............................................. 11

4Layout and functions .........................12

4.1 Basic device ................................................ 12

4.2 Connector panel.......................................... 12

4.3 Protective covers......................................... 14

4.4 Sensors and connection components ......... 14

4.5 Touch display .............................................. 17

5Prior to use ..........................................19

5.1 Charging the battery.................................... 19

5.2 Leak tightness test ...................................... 20

6Starting the unit ..................................20

7Connecting the Wöhler M 603 to one or

more Wöhler SC 660 units..................21

7.1 Connection via the settings menu ............... 22

7.2 Connection during live measurement.......... 23

7.3 Connection prior to pressure testing with water

.................................................................... 24

8Measurements on gas pipes..............25

8.1 Stress test on gas pipes .............................. 26

General information

8.2 Leak tightness test on gas pipes..................30

8.3 Usability measurement on gas pipes...........34

8.3.1 Usability testing, volume flow measurement 35

8.3.2 Usability testing, pressure drop method.......44

8.4 Pipe volume measurement ..........................51

8.4.1 Pipe volume measurement, automatic........51

8.4.2 Pipe volume measurement, manual ............ 52

8.5 Regulator test ..............................................56

8.6 Regulator test ..............................................56

9Measurements on water pipes .......... 60

9.1 Leak tightness tests performed with air on

drinking water pipes.....................................60

9.1.1 Preparations for the measurement ..............61

9.2 Stress tests performed with air on drinking

water pipes .................................................. 65

9.3 Pressure testing with water on water pipes . 71

9.4 Leak tightness testing of wastewater pipes in

accordance with DIN EN 1610..................... 75

9.4.1 Sensors and connection components..........75

9.4.2 Operating principle.......................................75

9.4.3 Sealing the pipe section............................... 76

9.4.4 Presets ........................................................82

9.4.5 Measurement............................................... 84

10 Live measurement ..............................89

11 Pipe location ....................................... 92

11.1.1 Preparations ................................................93

11.1.2 Pipe location ................................................ 95

General information

1 General information

1.1 Initial start-up

Fig.

1: Connector panel on the bottom of

the unit

•If the unit cannot be switched on, activate the

battery before using it for the first time by

pushing the lock switch to the right with a

pointed object.

1.2 Information about this

operating manual

This operating manual enables you to work safely

with the Wöhler M 603. Keep this manual in a safe

place so you can refer to it when needed.

The Wöhler M 603 Pressure Meter is intended to

be used solely by trained professionals and must

only be used for its intended purpose.

Liability is excluded for any damages caused by

failure to comply with this manual.

1.3 Notes

WARNING!

Failure to follow this warning can result in injury or

death.

ATTENTION!

Failure to follow this information can result in per-

manent damage to the unit.

NOTE!

Important information

1.4 Intended use

This meter can be used to measure differential

pressure, absolute pressure, flow speed, tempera-

ture, and humidity. It is designed for the following

purposes in particular:

Stress testing and leak testing in accordance with

the German Gas Installations Directive (TRGI

2018 - G 600)

Measurement of leakage rate in accordance with

General information

the German Gas Installations Directive (TRGI

2018 - G 600)

Measurement of flow pressure, installation pres-

sure, standing pressure, jet pressure

1.5 Components

Product

Items supplied

Wöhler M 603

Pressure meter

Control report

Measuring hose (1.7 m) with

quick-release connector

USB A / USB C cable

USB power supply unit

1.6 Transportation

ATTENTION!

The unit can be damaged if it is not transported

correctly.

To prevent damage to the unit, always transport it

in the carrying case provided. The pressure con-

nectors must be protected using the protective

cap.

The case is included with the product and can

also be bought separately.

1.7 Disposal

Electronic equipment does not belong in normal

domestic waste and must be disposed of in ac-

cordance with the applicable regulations.

Defective batteries removed from the unit can be

returned to our company or to public battery dis-

posal and recycling points, or to places where

new batteries are sold.

Important information

1.8 Manufacturer

Wöhler Technik GmbH

Wöhler-Platz 1

D-33181 Bad Wünnenberg

Tel.: +49 2953 73-100

Fax: +49 2953 73-250

E-mail: info@woehler-international.com

2 Important information

WARNING!

Due to the compressibility of gases, for technical safety reasons the relevant accident

prevention regulations (Germany: “Arbeiten an Gasanlagen” / Work on Gas Systems

and Equipment) and the set of rules “Technische Regeln für Gasinstallationen DVGW-

TRGI” (Technical Rules for Gas Installations issued by the German Association for Gas

and Water) must be complied with during all pressure tests with air or inert gas.

Specification

3 Specification

3.1 Measured values

Differential pressure measurement

(temperature-compensated piezo

bridge)

Description

Reading

Measuring range

± 3,000 hPa

Permissible overload

± 3,200 hPa

Accuracy

< 3% of the measured

value; in the range < ±

2 hPa better than ±

0.06 hPa

Resolution

0.01 Pa in the range

from

–210 hPa to

+210 hPa,

otherwise 0.1 hPa

Leakage amount (usability meas-

urement)

Description

Reading

Measuring range

0.0 l/h to 10.0 l/h, test-

ed up to 8 l/h

Accuracy

± 0.2 l/h

in the range from 0 to

4 l/h, otherwise 5% of

the measured value

Resolution

0.1 l/h

Internal temperature measurement

Description

Reading

Measuring range

-20°C to 60°C

Accuracy

< ± 1°C

Resolution

0.1°C

Specification

External temperature measure-

ment

(optional, e.g. with a temperature

clamp probe or surface tempera-

ture sensor)

Description

Reading

Measuring range

2 channels, -20.0°C to

+800.0°C

Accuracy

< ± 1°C in the range from

-20°C to 67°C,

otherwise 1.5% of the

measured value,

in acc. with EN 50379-1

Resolution

0.1°C

Humidity measurement

Description

Reading

Measuring range

0% to 100% RH (relative

humidity), non-condensing

Accuracy

± 5% RH

Resolution

0.1% RH

Response time

Up to 180 min.

Absolute pressure

Description

Reading

Measuring range

300 hPa to 1100 hPa

Accuracy

± 2 hPa

Resolution

0.1 hPa

Specification

3.2 Calculated values

Calculated

parameter

Calculation

Pressure units

Conversion to hPa, Pa,

mmH2O, PSI, inwc, bar, mbar

in accordance with the gen-

erally accepted conversion

guidelines.

Temperature

units

Conversion from °C to °F in

accordance with the general-

ly accepted conversion

guidelines.

Pipe volumes

Automatic from 0.0 to 1000.0

Calculated

parameter

Calculation

Leakage rate

Fully-automatic (class V): 0.0

l/h to 10.0 l/h

Gas leakage amount based

on the measured pressure

difference under simultane-

ous supply of a defined vol-

ume to maintain constant

pressure

in accordance with DVGW-

TRGI worksheet G 600 in l/h.

Specification

3.3 Logger function

Description

Reading

Scope

9999 measurements,

each with measured

values for pressure and

humidity, as well as

three measured val-

ues for temperature

(with external sensors

connected) with freely

selectable scanning

intervals ranging from

1 second to 24 h can

be saved in the inter-

nal memory.

USB data transmis-

sion

Online data, perma-

nent, already during

registration

Bluetooth data trans-

mission

Selectable scanning

intervals

Intervals can be freely

chosen in the range

from 1 second to 24 h

IMPORTANT!

For recordings that take a long time we recom-

mend connecting the unit to the mains.

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