testo 324 - Leakage rates measuring instrument

Instruction manual2

1 Contents

1

Contents

1

Contents ..................................................................................32

Safety and the environment ..................................................... 6
2.1. About this document ............................................................ 6
2.2. Ensure safety ......................................................................... 7
2.3. Protecting the environment .................................................. 93

Specifications ......................................................................... 10
3.1. Use....................................................................................... 10
3.2. Physical principles ............................................................... 11
3.2.1.
3.2.2.

Physical influence of temperature on the pressure to be measured.......................... 11
The standardised measurement result of the testo 324 relating to temperature
influences .................................................................................................................. 11

3.3. Technical data ..................................................................... 123.3.1.
3.3.2.
3.3.3.
3.3.4.
3.3.5.

4

Examinations ............................................................................................................. 12
Bluetooth® module (option) ....................................................................................... 12
Declaration of conformity .......................................................................................... 12
Measuring ranges and accuracies .............................................................................. 12
Other instrument data ............................................................................................... 13

Product description ................................................................ 15
4.1. Measuring instrument ........................................................ 15
4.1.1.
4.1.2.
4.1.3.
4.1.4.
4.1.5.

Overview ................................................................................................................... 15
Keypad ....................................................................................................................... 16
Display ....................................................................................................................... 17
Instrument connections............................................................................................. 18
Interfaces................................................................................................................... 18

4.2. testo 324 in the case system with feeding unit .................. 195First steps .............................................................................. 20
5.1. Commissioning .................................................................... 20
5.2. Getting to know the product .............................................. 20
5.2.1.

5.2.2.
5.2.3.

Mains unit, rechargeable batteries ............................................................................ 20
5.2.1.1. Charging the battery .................................................................................. 20
5.2.1.2. Rechargeable battery care ......................................................................... 21
5.2.1.3. Mains operation......................................................................................... 21
Connecting hoses/probes .......................................................................................... 21
Switching on .............................................................................................................. 21

3

1 Contents
5.2.4.
5.2.5.
5.2.6.
5.2.7.
5.2.8.

Calling up the function ............................................................................................... 22
Entering values .......................................................................................................... 22
Printing/saving data ................................................................................................... 23
Confirming an error message ..................................................................................... 24
Switching off .............................................................................................................. 24

5.3. Address/location ................................................................. 24
5.4. Measurement records ........................................................ 27
5.5. Instrument diagnosis........................................................... 27
6

Using the product .................................................................. 29
6.1. Performing settings ............................................................. 29
6.1.1.
6.1.2.

6.1.3.

Assigning the right function key ................................................................................. 29
Instrument settings .................................................................................................... 29
6.1.2.1. Units........................................................................................................... 29
6.1.2.2. Date/Time .................................................................................................. 30
6.1.2.3. Energy management .................................................................................. 30
6.1.2.4. Display brightness ...................................................................................... 30
6.1.2.5. Printer ........................................................................................................ 30
6.1.2.6. Bluetooth® .................................................................................................. 31
6.1.2.7. Automatic measuring rate.......................................................................... 31
6.1.2.8. Inspector .................................................................................................... 32
6.1.2.9. Language .................................................................................................... 32
6.1.2.10. Country version .......................................................................................... 33
6.1.2.11. Password protection .................................................................................. 33
Gas type ..................................................................................................................... 34

6.2. Measuring ........................................................................... 35
6.2.1.
6.2.2.
6.2.3.
6.2.4.

6.2.5.

6.2.6.

6.2.7.

4

Preparing for measurement ....................................................................................... 35
Options menu ............................................................................................................ 36
Pipe volume ............................................................................................................... 36
Gas pipe (TRGI 2018) ................................................................................................. 37
6.2.4.1. Pretest ....................................................................................................... 39
6.2.4.2. Main test .................................................................................................... 40
6.2.4.3. Leakage test (leakage measurement) ......................................................... 42
6.2.4.4. Combined pretest/main test ...................................................................... 44
6.2.4.5. Caravan Check............................................................................................ 46
Liquid gas (DVGW TRF 2012) ...................................................................................... 47
6.2.5.1. Pressure test .............................................................................................. 48
6.2.5.2. Main test .................................................................................................... 49
6.2.5.3. Repeated testing (PS>0.5 bar / PS<=0.5 bar) .............................................. 51
6.2.5.4. Carrying out repeated testing PS <0.5 bar .................................................. 52
Drinking water (ZVSHK sheet as per DIN EN 806-4) .................................................... 53
6.2.6.1. Testing with air – main test ........................................................................ 54
6.2.6.2. Testing with air – pretest ........................................................................... 56
6.2.6.3. Test with water .......................................................................................... 58
Waste water (DIN EN 1610) with air .......................................................................... 60

1 Contents
6.2.8.

6.2.9.

Programs ................................................................................................................... 61
6.2.8.1. Spot measurement .................................................................................... 61
6.2.8.2. Programs 2-5 ............................................................................................. 62
Controller test ........................................................................................................... 66
6.2.9.1. Static pressure ........................................................................................... 67
6.2.9.2. Flow pressure ............................................................................................ 68
6.2.9.3. SAV_triggering pressure............................................................................. 68
6.2.9.4. SRV triggering pressure .............................................................................. 69

6.3. Transferring data ................................................................. 70
6.3.1.
6.3.2.
6.3.3.

Record printer ........................................................................................................... 70
PC/pocket PC ............................................................................................................. 70
Data transfer to IrDA record printer .......................................................................... 71

7

Maintaining the product......................................................... 72
7.1. Cleaning the measuring instrument.................................... 72
7.2. Regular calibration .............................................................. 72
7.3. Replacing the gas bladder .............................................. 72

8

Tips and assistance ................................................................. 73
8.1. Questions and answers ....................................................... 73
8.2. Accessories and spare parts ................................................ 73
8.3. Updating the instrument software ..................................... 745

2 Safety and the environment

2

Safety and the environment

2.1.

About this document
This document describes the product testo 324 with the instrument
setting Country version | Germany.
Use> Please read this documentation through carefully andfamiliarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it whennecessary.
> Hand this documentation on to any subsequent users of the
product.
Warnings
Always pay attention to information that is marked by the following
warnings with warning pictograms. Implement the specified
precautionary measures.
Representation

6

Explanation

WARNING

Indicates potential serious injuries

CAUTION

indicates potential minor injuries

NOTICE

indicates circumstances that may lead todamage to the products2 Safety and the environment
Symbols and writing standards
Representation

Explanation
Note: Basic or further information.

1. ...
2. ...

Action: more steps, the sequence must be followed.

> ...

Action: a step or an optional step.

-

Result of an action.

...

Symbols and writing standards
Display

Explanation
Warning advice, risk level according to thesignal word:
Warning! Serious physical injury may occur.
Caution! Minor physical injury or damage to theequipment may occur.
> Take the specified precautionary measures.
Note: Basic or further information.

2.2.

1. …
2. …

Handling: several steps, the sequence must be
followed.

> …

Handling: one step or optional step.

-

Result of an action.

…

Menu

Elements of the instrument, the instrument
display or the program interface.

[OK]

Control keys of the instrument or buttons of the
program interface.

…|…

Functions/paths within a menu.

“…”

Example entries

Ensure safety> Only operate the product properly, for its intended purpose andwithin the parameters specified in the technical data. Do not
use any force.
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or feed lines.

7

2 Safety and the environment> Do not perform contact measurements on non-insulated, live
parts.
> Do not store the product together with solvents. Do not use any
desiccants.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow theprescribed steps exactly. Use only original spare parts
from Testo.
>

Any further or additional work must only be carried out by
authorised personnel. Testo will otherwise refuse to accept
responsibility for the proper functioning of the measuring
instrument after repair and for the validity of certifications.

> Only use the device in closed, dry rooms and protect it from rain
and moisture.
> Temperatures given on probes/sensors relate only to themeasuring range of the sensors. Do not expose handles andfeed lines to any temperatures in excess of 70 °C unless they
are expressly permitted for higher temperatures.
> The gas feeding unit should only be emptied in an open
environment.
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or feed lines.
> Dangers may also arise from the systems being measured or
the measuring environment: Note the safety regulations valid inyour area when performing the measurements.
> The mains unit must always be accessible while the instrument
is charging so that the connection to the mains can be
disconnected quickly in an emergency.
For products with Bluetooth® (optional)
Changes or modifications that have been made without the explicit
consent of the responsible approval authority, may cause theretraction of the type approval.
Data transfer may be disturbed by equipment that uses the same
ISM-band, e.g. WLAN, microwave ovens, ZigBee.
The use of radio communication links is not permitted, among
others, in aeroplanes and hospitals. For this reason the following
points must be ensured before entering:> Switch off the device:> Isolate the device from any external power sources (mains
cable, external rechargeable batteries, ...).

8

2 Safety and the environment

2.3.

Protecting the environment> Dispose of faulty rechargeable batteries/spent batteries inaccordance with the valid legal specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.

9

3 Specifications

3

Specifications

3.1.

Use
testo 324
The testo 324 is a leakage measuring instrument for the
professional performance of the following measuring tasks:• Pretest and main test on gas pipes• Determining the usability of gas pipes• Measuring low pressure against atmospheric pressure• Pressure test on waste water pipes• Pressure tests on liquid gas pipes• Controller test•

Temperatur e m eas urem ent

WARNING
Escaping gas can produce an explosive mixture of gases!
Potential risk of explosion!
> The testo 324 leakage measuring instrument may only be usedby authorised personnel who have been trained in themaintenance and inspection of gas systems.
> Observe local accident prevention and test regulations.
Testo guarantees the functionality of its products whenused in accordance with their intended purpose. Thisguarantee does not apply to features of Testo products incombination with unauthorised third-party products.
Competitor products are not authorised by Testo.
As is common practice, Testo generally excludes support,
warranty or guarantee claims relating to functionality thathas not been guaranteed by Testo as part of the productoffered. Claims shall also be excluded in the event of
improper use or handling of the products, e.g. in
combination with unauthorised third-party products.
Further warranty terms: see website
www.testo.com/warranty.
Feeding unit
When used in conjunction with the testo 324 leakage measuring
instrument, the feeding unit (gas bladder) enables leakage
measurement to be carried out independently of the gas supply.

10

3 Specifications

3.2.

Physical principles

3.2.1.

Physical influence of temperature on the pressure to
be measured

Temperature fluctuations and positional changes have an effect on
the measuring accuracy of pressure measurements. The following
should therefore be observed:✓ The entire measurement system must be adapted to theambient temperature and to the temperature of the line system
to be tested.
✓ The temperature of the measurement system and the line
system must remain stable during measurement.

Example of temperature influence:with a test pressure of 100 hPa and an air pressure of 1000 hPa,
the ambient temperature changes from +22 °C to +23 °C. The air in
the test system expands and the test pressure increases by
3.73 hPa. The temperature influence on the pressure change isunaffected by the test volume.

3.2.2.

The standardised measurement result of the testo
324 relating to temperature influences

The testo 324 leak rate measuring instrument certified to
DVGW G 5952 enables measuring values to be reproduced.
Comparable results based on the standardised reference operatingpressure of 23 mbar are always achieved. The volume measured
during the test is based on a reference temperature of 20 °C andthe current air pressure.
A change in the ambient temperature therefore has no influence on
the measuring values!
The ambient temperature and the relevant test gas or medium foreach test section must nevertheless show a constant temperature
within the range of 15 °C to 25 °C with a maximum deviation of ±2 °C. Only then can a measurement be carried out. During thestability time at the start of each measurement, this check is carriedout automatically and a warning is issued if the temperature andtherefore the pressure fluctuates too greatly.

11

3 Specifications

3.3.
3.3.1.

3.3.2.

3.3.3.

Technical data
Examinations

Tested in accordance with DVGW1 G5952 by DVGW Karlsruhe.
As declared in the Certificate of Conformity, this product complies
with Directive 2014/30/EU.

Bluetooth® module (option)

The use of the wireless module is subject to the regulations andstipulations of the respective country of use, and the module may
only be used in countries for which a country certification has been
granted. The user and every owner has the obligation to adhere tothese regulations and prerequisites for use, and acknowledges thatthe re-sale, export, import etc. in particular in countries without
wireless permits, is his responsibility.

Declaration of conformity
Testo SE & Co. KGaA hereby declares that the testo 324 and(0632 3240) comply with Directive 2014/53/EU.
The full text of the EU Declaration of Conformity can be found on
the following website: https://www.testo.com/eu-conformity.

3.3.4.

Measuring ranges and accuracies
Measurement Measuring
type
range

Accuracy

Resolution

Flow (Leakage 0 to 10 l/h
measurement)±0.2 l/h or ±5% ofmeas. val.

0.1 l/hPressure±0.5 hPa or ±3% ofmeas. val.

0.1 mbar

0…10 bar:± 0.6 % of fullscale>10…25 bar:
± 0.6 % of fullscale

10 hPa0…1000 hPa

Pressure
0…25 barmeasurementwith a highpressure probe(optional)

German Technical and Scientific Association for Gas and Water
121

3 Specifications

3.3.5.

Measurement Measuring
type
range

Accuracy

Resolution

Temperature
measurement
TC type K(only instrument)2-40…600 °C± 0,5°C
0,1°C(0,0...100,0 °C)± 0,5% of meas. val.
(rest of range)

Instrument
overload

Max. 1200 hPa

Pipe volume
calculation

Max. 1200 l.3+/-0,2l or 5% ofmeas. val. (1-200l)

Other instrument data
Flue gas analyser
FeatureValuesStorage/transportati Temperature: -20 to 50°C
on conditions
Operatingconditions

5 to 40°C

Power supply

Rechargeable battery: Li-ion rechargeable
battery 11.0 V / 2400 mAh
Mains unit:
Input 115-230 V - 50/60 Hz
Output 6.3 VDC

Power consumption Mains unit: 12.6 W,
rechargeable battery: 5 W
Protection class

IP0X

Weight1070 g (incl. battery)Dimensions

270 x 90 x 75 mm

Additional probe
sockets

2 Hirschmann sockets for connecting
pressure probes and temperature probes

The accuracy of a connected temperature probe must also be taken
into account.
3
per 200 l: Test time 12 min
13
2

3 Specifications
FeatureValuesGas connections

2 pressure connections DN 5Interference
immunity andinterference
emission

According to DIN EN 61326-1

Memory500,000 measuring values

Integrated pressurepump

For test pressure build-up up to 300
mbar
and for filling the feeding unit

Display

Graphic colour display, 240 x 320 pixels

Data transfer to PC

USB or Bluetooth (option)

Battery charge time Approx. 5-6 hRech. batt. life

> 5 h (pump on, 20°C ambient temperature)

Supported
testo printer0554 0549, 0554 0547, 0554 0544 or
0554 0553, 0554 0620 (with Bluetooth
option)Bluetooth® (option)

Range < 10 m

Field of application

Indoor use only

Maximum operating 2000 m
altitude

14

Level ofcontamination

PD2

Operating humidity

0 to 90 %RH, non-condensing

4 Product description

4

Product description

4.1.

Measuring instrument

4.1.1.

Overview

15

4 Product description
1
2
3

Switch on/off
Attachment eye for carrying strap
Interfaces (USB, infrared) and reset button

CAUTION
Risk of injury from infrared beam!
> Do not direct infrared beam at human eyes!
45
6

4.1.2.

Display
KeypadInstrument connections

KeypadButtonFunctions[Switch measuring instrument on/off][OK]
Function key (grey, 3x), relevant function is shown on
Example the display

16

[▲]

Scroll up, increase value[▼]

Scroll down, reduce value[esc]

Back, cancel function[

Open main menu][i]Help texts, e.g. for individual measurements[

Transmit data to the record printer.

]4 Product description

4.1.3.

Display1

Status bar (dark grey background):•Warning symbol(only if there is an instrument error,
display of error in instrument diagnosis menu), otherwise:
Instrument designation.

•••

SymbolDisplay of date and time.
Indication of Bluetooth® status, power supply and remaining
rechargeable battery capacity:
Symbol FeatureBlue symbol = Bluetooth® on,
Grey symbol = Bluetooth®offBattery operation
Display of remaining rechargeable battery
capacity by colour and fill level of the battery icon
(green = 5 - 100%, red = < 5%)
Mains operation
Display of remaining rechargeable battery
capacity: see above

2
3
4

Info field of register tabs: Display of selected address/location,
selected measurement type.
Selection field for functions (selected menu item appears
against a white background, unavailable functions are identified
by grey font) or display of measuring values.
Function display for function keys.

17

4 Product description

4.1.4.

Instrument connections

1
2
3
4

4.1.5.

Interfaces

1
2
3
4

18

Mains unit socket
Probe sockets for connecting the temperature probe or the highpressure probes
Pressure connection 1.2 bar for connecting a pressure hose
Pressure connection for connecting a feeding unit or a pressure
hose

USB interface (under cover)Reset button (under cover)
Infrared interface (IrDA)
Bluetooth interface (option)

4 Product description

4.2.

testo 324 in the case system with feeding unit
Overview

1
2
3
4
5
6
7
8

Transport casetesto 324
Feeding unit (gas bladder)
Storage compartment for instruction manual
Hand pump
Holder for gas leak detection instrument testo 316-2 or
testo 316-EX
Holder for IRDA or Bluetooth printer (option)
Connection for an external hand pump or a compressor

19

5 First steps

9

Connection block with shut-off valve for pump, instrument andhose connection
10 Storage compartments for accessories

5First steps

5.1.

Commissioning
testo 324
The testo 324 has a permanently installed rechargeable battery.
> Charge the rechargeable battery fully before using themeasuring instrument.
> Remove the protective film from the display.
Feeding unit
Flushing is required when starting up the unit for the first time, after
replacing the gas bladder and when changing the medium.
> Fill and empty the feeding unit once, see Options menu

5.2.

Getting to know the product5.2.1.

Mains unit, rechargeable batteries
In case of an extended interruption in the power supply tothe testo 324 (e.g. rechargeable battery pack empty), thedate/time settings will be lost.

5.2.1.1.

20

Charging the battery

The rechargeable battery can only be charged at an ambient
temperature of 5 to +35 °C. If the rechargeable battery pack hasdischarged completely, the charging time at room temperature isapprox. 5 - 6 h (charging with mains adapter).

5 First steps
Charging via a mains unit
✓ The testo 324 is off.
1. Connect the mains unit instrument plug to the mains unit
socket.
2. Connect the mains plug of the mains unit to a mains socket.
- The charging process starts. The charge status is shown on thedisplay.
- Once the rechargeable battery has been charged, theinstrument switches over automatically to trickle charge.

5.2.1.2.

Rechargeable battery care

5.2.1.3.

Mains operation> Do not fully exhaust rechargeable batteries.
> For extended periods of disuse, you should discharge andrecharge the batteries every 3 - 4 months. Trickle charging
should not exceed 2 days.

In case of danger, the instrument must be disconnectedfrom the power supply by simply pulling out the mains
cable.
> Always position the instrument so that the power supply plugcan be easily reached.
1. Connect the mains unit instrument plug to the mains unit
socket.
2. Connect the mains plug of the mains unit to a mains socket.
- The power supply is provided by the mains unit.
- If the testo 324 is switched off, the rechargeable battery
charging process starts automatically. Switching on the testo
324 stops the battery charging and the instrument is thenpowered via the mains unit.

5.2.2.

Connecting hoses/probes> Connect the required hoses/probes at the corresponding
connections.

5.2.3.

Switching on> Press [].

When the instrument is switched on, the valves of the
testo 324 are activated. Four short acoustic signals are
output.

21

5 First steps
If fewer than 4 acoustic signals are sounded, the testo 324
must be switched on and off several times before use until
4 signals are sounded.
The testo 324 then starts up as usual.
-

5.2.4.

Calling up the function
1.
2.
-

5.2.5.

The start screen is displayed (duration: approx 15 s).
If the voltage supply was interrupted for an extended period:
The Date/Time menu is opened.
The pressure sensors are zeroed.
If there is an instrument error, the Error diagnosis menu isdisplayed.
The Measurement options menu is displayed.

Select function: [▲], [▼].
A box appears around the selected function.
Confirm selection: [OK].
The selected function is opened.

Entering values

Some functions require values (numbers, units, characters) to beentered. Depending on the selected function, the values areentered either via a list field or an input editor.
List field

1. Select the value to be changed (numerical value, unit): [▲],[▼], [◄], [►] (depending on the selected function).
2. Press [Edit] .
3. Set value: [▲], [▼], [◄], [►] (depending on the selectedfunction).

22

5 First steps
4. Confirm the entry: [OK].
5. Repeat steps 1 and 4 as required.
6. Save the entry: [Finished].
Input editor

1. Select the value (characters) to be changed: [▲], [▼], [◄],[►].
2. Adopt the value: [OK].
Options:> Toggle between upper/lower case:>>select Ι← ABC→&$/ →Ι : [▲], [▼] → [ABC→&$/].
Position the cursor in the text:

select Ι← ABC→&$/ →Ι : [▲], [▼] → [Ι←] or [→Ι].
Delete character before or after the cursor:

select Del Finished ←: [▲], [▼] → [←] or [Del].
3. Repeat steps 1 and 2 as required.
4. Save the entry: select Del Finished[Finished].

5.2.6.

← : [▲], [▼] →Printing/saving data
Data is printed out via the key [ ].
To be able to transfer data to a record printer via infrared orBluetooth interface, the printer used must be enabled, see Printer,page 30
Data is saved via the Options menu. The Options menu isaccessed via the left function key and is available in many different
menus.

23

5 First steps
Once a measurement has been carried out, the measurement
result can be saved via the right function key Save. Assignment of
the right function key with the function Save or Print, see
Assigning the right function key.

With other functions, saving is carried out automatically via thefunction key Finished, e.g. when creating Address/Location orentering Date/Time.

5.2.7.

5.2.8.

Confirming an error message

If an error occurs, an error message is shown on the display.
> Confirm error message: [OK].
Errors that have occurred but have not yet been rectified are
indicated by a warning symbol ( ) in the header.
Error messages not yet resolved can be displayed in the menu
Error diagnosis, see Instrument diagnosis.

Switching off
Unsaved measuring values are lost if the testo 324 isswitched off.
> Press [ ].
- The measuring instrument switches off.

5.3.

24

Address/location

All measuring values can be saved under the currently active
location. Measuring values that have not been saved are lost whenthe measuring instrument is switched off!
Addresses and locations can be created, edited, copied andenabled. Addresses and locations (incl. records) can be deleted.

5 First steps
Call up function:> [] → Address/Location → [OK] .

There are various options for opening folders.
1. Edit search setting (Search / Filter / Show all): [Edit]
2. Select search setting: [▲], [▼] → [OK].
Possible settings:• Show all: all addresses/locations are displayed• Search: A search text only brings up addresses/locations
that contain characteristics of the search text.
• Filter: Individual letters or numbers can be selected. All data
beginning with the relevant letter/number is displayed.
The initial letter is the determining factor for the filter
function, and this can only be selected individually. The
search function can also be used to find a series of several
letters within the folder name!
3. Carry out search according to search setting: [Search]Show all
1. Select address: [▲], [▼].
2. Show details: [Details].
3. Enable location: select location → [OK].
- The location is enabled.
> Open measurements menu: press [OK] again.
Search
1. Edit search criterion: [►] → [Edit].
2. Select search criteria: [▲], [▼] → [OK].
Possible options:• Contact person• Folder name
• Town/city• Postcode• Street- The selected criterion is displayed.
3. Call up entry field for search text: [►] or [▼]> Enter search text → [Finished]25

5 First steps
Filter
1. Edit search criteria: [Edit].
2. Select search criteria: [▲], [▼] → [OK].
Possible options:• Contact person• Folder name
• Town/city• Postcode• Street- The selected criterion is displayed.
3. Enable tab: [▼]4. Select the required tab: [▲], [▼] and sometimes [◄], [►] →[Filter].
- The search result for the relevant letter or number is displayed.
Creating a new location:
A measuring location is always created under an address.
1. Select the address under which the location should be created.
2. [Options] → New location → [OK].
3. Enter values or make settings.
4. Finalise the entry: [Finished].
Other location options:> [Options] → Edit location: make changes to an existing
location.
> [Options] → Copy location: make a copy of an existing
location in the same folder.
> [Options] → Delete location: delete an existing location.
Creating new addresses:
1. [Options] → New address → [OK].
2. Enter values or make settings.
3. Finalise the entry: [Finished].
Additional address options:• Edit address: make changes to an existing folder.
• Copy address: make a copy of an existing address.
• Delete address: delete an existing address, including thelocations created there.
• Delete all addresses: delete all existing addresses, including
the locations created there.

26

5 First steps

5.4.

Measurement records
Call up function:> [ ] → Measurement records → [OK].
There are various options for opening records, see
Address/location, page 24.
Displaying a record:
1. Select the required record from the detailed view.
2. [Data].
Options:> [Options] → Show Graphic: display saved record data asgraphic.
> [Options] → Delete Record: delete the selected record.
> [Options] → Number of lines: change the number ofmeasuring values per display page.
> [Options] → Delete all records: delete all saved records for alocation.

5.5.

Instrument diagnosis

Important operating values and instrument data are displayed. A
main test can be carried out. Instrument errors that have not yet
been rectified can be displayed.
Call up function:> [] → Instrument diagnosis → [OK].

Error diagnosis> Error diagnosis → [OK].
- Unresolved errors, warnings and notes are displayed.
> View next/previous error: [▲], [▼].
Instrument information> Device Information → [OK].
- Information is displayed.
Tightness test
1. Main test → Tightness test → [OK]2. Short both gas connections through the connection hose.
3. Start the check: [OK].
- Zeroing of pressure sensor

27

5 First steps-

Pressure is built up and measurement is carried out
The result of the measurement is indicated by a traffic light.

Gas feeding unit test
1. Gas feeding unit test → [OK].
2. Connect the measuring instrument to the gas feeding unit.
3. Start the test: [OK].
- If the gas feeding unit is full, it is emptied.
4. Gas feeding unit is filled.
• Settling period expires (15 min)• Measuring time expires (5 min)- The measurement result is indicated by a traffic light.
5. Gas feeding unit is emptied.
6. Exit testing: [Back]28

6 Using the product

6

Using the product

6.1.

Performing settings

6.1.1.

Assigning the right function key

The right function key can have a function from the Options menu
assigned to it. The menu Options is accessed via the left function
key and is available in many different menus. This assignment isonly valid for the currently opened menu / the opened function.

✓ A menu / function is opened in which the Options menu isdisplayed on the left function key.

1. Press [Options] .
2. Select option: [▲], [▼].
Depending on the menu / function from which the Options menu
was opened, the following functions are available.
3. Assign the selected function to the right function key: Press[Config. Key].

6.1.2.

Instrument settings
It is assumed that the contents of the chapter First steps(see First steps) are known.
Calling up a function:> [6.1.2.1.

] → Device Settings.

Units

The units used for parameters in configuration menus can be set.
Call up function:> [] → Instrument settings → [OK] → Units → [OK].

Adjustable units
Parameter

Unit

PressurehPa, mbar, psi, inW,
inHg

Volumem3, l, ft3Ext. Pressurebar, psi, kPa

Leakrate

l/h, fl.oz, ml/min

29

6 Using the product1. Select the line: [▲], [▼] → [Edit].
2. Select the unit to be changed: [▲], [▼] → [OK].
3. Confirm the entry: [Finished].

6.1.2.2.

Date/TimeDate, time mode and time can be set.
Calling up the function:> [] → Instrument settings → [OK] → Date/Time → [OK].

Set date/time:
1. Select parameter: [◄], [▲], [▼] → [Edit].
2. Set parameter: [▲], [▼] and sometimes [◄], [►] → [OK].
3. Save settings: [Finished].

6.1.2.3.

Energy management

Automatic instrument shutdown (Auto-Off) and switching off of thedisplay light in battery operation can be set.
Calling up the function:> [ ] → Instrument Settings → [OK] → Energy Management→ [OK]

Making settings:
1. Select function or parameter: [▲], [▼] → [Edit].
2. Set parameter: [▲], [▼] and partly [◄], [►] → [OK].
3. Save changes: [Finished].

6.1.2.4.

Display brightness

The intensity of the display illumination can be set.
Calling up the function:> [ ] → Instrument Settings → [OK] → Display Brightness →[OK]
Performing settings> Set parameter: [◄], [►] → [OK].

6.1.2.5.

Printer

The headers (lines 1-3) and the footer for the printout can be set.
The printer that is used can be enabled.
Call up function:> [30] → Instrument settings → [OK] → Printer → [OK].

6 Using the product
Enabling the printer:
The 0554 0553 and 0554 0620 printers can only be
selected if the Bluetooth® interface is enabled, seeBluetooth®, page 31.
When using the testo IrDA record printer 0554 0547, thetesto IrDA fast printer 0554 0549 must be selected.
Graphics can be printed out using the following Testo
printers:
0554 0547 IrDA report printer0554 0549 IrDA report printer0554 0553 Bluetooth® printer0554 0620 Bluetooth® printer1. Select printer → [OK].
2. Select the printer: [▲], [▼] → [OK].
- The printer is enabled and the Printer menu is opened.
Setting the print text:
1. Print text → [OK].
2. Select function: [▲], [▼] → [Edit].
3. Enter values → [OK].
4. End input: [Finished].
5. Save the entry: [Finished].

6.1.2.6.

Bluetooth®

This menu is only available if the instrument is equipped with
Bluetooth. The Bluetooth module can be switched on / off.The relay
can now be tested.
Calling up the function:> [] → Instrument Settings → [OK] → Bluetooth → [Edit].

Making settings:> Set parameter → [OK].

6.1.2.7.

Automatic measuring rate

The automatic measuring rate can be switched on or off.
If the automatic measuring rate is on, the following measuring rateis saved for the individual measurement programs (except
Programs menu):31

6 Using the productMesszeit

Measuring rate

< 15 min1s> 15 min

1 min

If the automatic measuring rate is switched off, a measuring rate of
1 second is used, irrespective of the measuring time.
Call up a function:> [ ] → Instrument settings → [OK] → Autom. meas. rate →[OK].
Making settings:
1. [Edit]
2. Set parameter: [▲], [▼] → [OK].

6.1.2.8.

Inspector

In this menu, an inspector can be selected and/or a new one canbe created.
Calling up the function:> [] → Instrument settings → [OK] → Inspector → [OK].

Making settings:
1. Edit/create inspector: [▼] → [Edit] → [Finished].
2. Set parameter: [▲], [▼] and sometimes [◄], [►] → [OK].
3. Save changes: [Finished].
4. [Finished].
Selecting an inspector> Select inspector: [▲], [▼] → [Enable] → [Finished].

6.1.2.9.

Language

The menu language can be set. The number of available
languages depends on the activated country version the function:> [] → Instrument Settings → [OK] → Language → [OK]Activating the language:> Select the language → [OK].

32

6 Using the product6.1.2.10.

Country version

The country version with national defaults (measurement types,
standard values) can be set. The selection of the country version
influences the menu languages that can be enabled.
Call up function:> [ ] → Instrument settings → [OK] → Country version →[OK].
This setting can be password protected. A password isspecified in the menu Password Protection, see
Password protection.
Possibly:> Enter password: [Enter] → Enter password → [Finished] →[OK].
Setting the country version:
1. Select the country version: [▲], [▼] → [OK].
2. Confirm confirmation request: Yes → [OK]- The system is restarted.

6.1.2.11.

Password protection

The password protection is only valid for functions identified by thefollowing symbol:
or.
Password protection can be enabled/disabled, the password canbe changed.
To disable password protection, change the password to 0000
(factory setting).
Call up function:> [ ] → Instrument settings → [OK] → password protection→ [OK].
Possibly:> Enter the current password:[Enter] → Enter password → [Finished] → [OK].
Changing the password:
1. [Edit].
2. Enter a new password → [Finished].
3. [Edit].
4. Enter the new password again to confirm → [Finished].
5. Save changes: [Finished].

33

6 Using the product6.1.3.

Gas type

The gas type can be selected. The gas-specific coefficients andthreshold values can be set.
In order to maintain the measuring accuracy of the
instrument, the correct gas must be selected or configured.
Correct representation of measuring results is only
assured if the threshold values for the ideal range of thecorresponding measurement task have been set correctly.
Preset threshold values are typical values for the selected
gas type.
Gas

Standard
designation

Gas
composition

Measuring
range

Natural gas(G20)

Complies with
G20

Methane 100%

0 to 10 l/h

Natural gas(G25)

Complies with
G25

Methane 86%
Nitrogen 14%

0 to 10 l/h

Propane G31

G31 burner
test gas

Propane 100%

0 to 5 l/h

Propen G32

G32 burner
test gas

Propen 100%

0 to 5.7 l/h

G21

G21 burner
test gas
EN 437,
DIN 3362

Methane 87%
Propane 13%

0 to 10 l/h

G30

G30 burner
test gas

n-butane 50%
Iso-butane 50%

0 to 3.2 l/hAir-

Nitrogen 78%
Oxygen 21%

0 to 10 l/h

CO2

--

CO2 100%

0 to 9 l/hCall up function:> [] → Gas type → [OK].

Enabling gas type:> Select the gas type → [OK].
- The gas type is enabled and the main menu is opened.

34

6 Using the productSetting coefficients:
1. Select gas type → [Coeff.].
2. Select the coefficients: [Edit].
Possibly:> Enter password: [Enter] → Enter password → [Finished] →[OK].
3. Set values → [OK].
4. Save changes: [Finished].

6.2.

Measuring

6.2.1.

Preparing for measurement
The feeding unit (gas bladder) must be tested for leaks atregular intervals, see Instrument diagnosis, gas feeding
unit test.
CautionAvoid damage to the instrument due to high pressure!
> For tests with a test pressure of > 1 bar or using a liquid test
medium e.g. water, a high pressure probe (art. no. 0638 1748)
must be used.
The First steps chapter (see First steps, page 20) musthave been read.
General information on the tightness tests on gas andwater pipes according to DVGW
• Before starting work on pipes carrying gas, the relevant
shut-off device must be closed and secured against
opening by unauthorised persons (e.g. when the key or
the hand wheel is removed). Where gas escapes or
could escape, it is necessary to ensure that the gas isdisposed of safely through ventilation or routing it
outdoors via a hose. The shut-off device should only be
opened again when all openings of the pipes throughwhich gas could escape have been tightly sealed. The
above does not apply when dealing with externalmaintenance measures on pipes.
• If a leak is detected in accessible pipes carrying gas
using a gas detector in accordance with DVGW advice
G465-4 or with foaming agents in accordance with DIN
EN 14291, the point must be sealed by means ofsuitable measures. Illumination with flames is not35

6 Using the product••permitted. Temporary sealing is only permissible in the
short term to avoid immediate risks.
Pipes with operating pressures up to 100 mbar are
subject to a pretest and a main test, as well as aserviceability test (for system in operation). The tests
should be carried out before the pipe is plastered overor covered and its connections are coated or encased.
The tests can also be carried out in step-by-step.
All tests must be documented.

To protect the testo 324, it is necessary to ensure that thegases flowing into the pipes are free of oil, dust andmoisture.
Setting the location and gas type
Before carrying out measurements, the location and gas type must
be correctly selected, see Address/location, page 24and see Gas
type, page 34.

6.2.2.

Options menu

In the Measurement Type menu, for the various measurement
types, under [Options], the following selection is available:> [Options] → Address/Location: The Address/Location folder
is opened.
> [Options] → Gas type: The Gas type folder is opened.
> [Options] → Main test: A main test can be carried out.
> [Options] → Please empty gas feeding unit: If a gas feeding
unit is available, this is emptied automatically.
This option is only available in conjunction with a feedingunit.
> [Options] → Release air: Air is released from the pipe into theenvironment.
> [Options] → Release gas: Gas is released from the pipe into
the gas feeding unit.
This option is only available in conjunction with a feeding
unit.
There are other options depending on the measurement type used.

6.2.3.

36

Pipe volume

Based on the pipe volume calculation, unknown pipe volumes canbe determined and allocated to the relevant measuring location.
Particularly for the tightness test, where the stability time and6 Using the productmeasurement time depends on the pipe volume, the advantage iseven more accurate and more reliable measurement.
Calling up the function:> [] → Measurements → [OK] → Pipe volume → [OK].

Setting parameters
Parameter

Selection

Explanation

Gas feeding unit

Yes/NoEnable/disable gas feeding
unit

Test gasAir, CO2,
G30, G21,
propane,natural gas,

Select test gas

1. Select parameter → [Edit].
2. Select or enter values: [▲], [▼] and sometimes [◄], [►] →[OK].
Carrying out the measurement:
3. Start measurement: [ ].
> When Gas feeding unit Yes is selected: carry out steps inaccordance with the information on the display and confirm with[OK].
- Zeroing starts (5 s)- Volume calculation is carried out (bar shows progress of thecalculation)- Volume is displayed.
4. Adopt measurement result: [Apply].

6.2.4.

Gas pipe (TRGI 2018)
WARNING
Risk of explosion due to hazardous gas/air mixtures> Do not feed air into pipes carrying gas.
> Observe the information for the instrument if there is a risk that
air is being routed into pipes carrying gas.

37

6 Using the product
CAUTION
Avoid damage to the instrument due to high pressure!
> The test pressure of 1.2 bar must not be exceeded.
There are 5 different test types to choose from:38

Test type

Explanation

PretestThe pretest (using air) is used for the load
test (stability test) of newly laid gas pipes.
The test is performed on the pipe without
gas meter and fittings.

Main test

The main test (using air or inert gas, e. g.
CO2 or N2) is used for the tightness test
(acceptance test) on newly laid or
renovated pipes. The test is performed at
the pipe, including the fittings, without gas
installations and corresponding control
and safety equipment.

Leakage test

This measurement is carried out to test
the serviceability of an existing gas pipe
system and is used to check the actual
condition of the pipes. The pipe system
may be in operation or disused. After
handover of a gas system, the operator is
responsible for proper operation, which is
why it is recommended that theserviceability test is carried out every 12
years.

Combinedpretest/main test

This measurement is carried out for newly
laid pipe systems with operatingpressures of 100 hPa to 0.1 MPa.
The test includes pipe systems including
fittings, but without gas pressure
controllers, gas appliances, gas meters
and relevant regulating and safety
devices.

6 Using the product6.2.4.1.

Test type

Explanation

aCaravan check

Tightness test on gas pipes inaccordance with the EN 1949 standard
and DVGW G 607. Since1 April 2006, a
valid G 607 test is a requirement for the
HU (general inspection) with the TÜV(German Technical Inspection Agency).
Caravan and motorhome owners are
obliged to have their liquid gas systems
checked every 2 years.

PretestThis test is used as a load test for newly laid gas pipes and is
carried out before the main test. The test is performed on the pipe
without a gas meter and fittings. The pipe is subjected to manytimes the subsequent operating pressure, so the material is
exposed to a significantly greater load than is expected during
normal operation.
Calling up the function:> [ ] → Measurements → [OK] → Gas pipe (TRGI 2018→
Pretest → [OK].
Setting parameters
Parameter

Explanation

Stability time

Set stability time

Measurement period

Adopt or set measurement period
According to DVGW TRGI 2018,the measurement period is 10
min.

Test pressure (target) Adopt or set test pressure
According to DVGW TRGI 2018,
the test pressure (target) is
0.1 MPa.
Pressure

Set pressure

1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].

39

6 Using the product
Carrying out a pretest
1. Build up test pressure (target) manually with the test pump or acompressor at the connection provided.
2. Close the shut-off valve.
The valve must always be closed during measurements.
Only open to apply pressure. Close it again
3. Start measurement: [ ].
- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Pretest is ended.
4. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
5. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.4.2.

Main test

The main test (using air or inert gas such as CO2 or N2) is atightness test for pipes including fittings, but without gas appliances
and the relevant regulating and safety devices. The main test is
carried out after a successfully completed pretest on newly laid gas
pipes or after renovation of existing gas pipes and is used for theacceptance of these pipes. It shows up even the smallest leaks in
gas pipes.
Calling up the function:>

40[ ] → Measurements → [OK] → Gas pipe (TRGI 2018→
Main test → [OK].

6 Using the productSetting parameters
According to DVGW TRGI 2018, the stability time andmeasurement period depend on the pipe volume.
• Pipe volume < 100 l: Adjustment time 10 min,measurement period 10 min.
• Pipe volume > 100 l - < 200 l: Adjustment time 30 min,measurement period 20 min.
• Pipe volume > 200 l: Adjustment time 60 min,measurement period 30 min.
Parameter

Explanation

VolumeSet volume
The pipe volume can also bemeasured directly, see [Options]→ Volume

Stability time

Set stability time

Measurement period

Set measurement period

Test pressure (target) Set test pressure
According to DVGW TRGI 2018,
the test pressure (target) is
150 hPa.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a main test
1. Start measurement: [ ].
- Zeroing starts (5 s)- Test pressure (target) is built up automatically by the instrument
Option> End stability time early: [Next]> End measurement period early: [Next]- Main test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].

41

6 Using the productOptions> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Volume: The pipe volume is determined directly(the option is no longer available after the measurement).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.4.3.

Leakage test (leakage measurement)This measurement is carried out to test the serviceability of an
existing gas pipe system (in contrast to the pretest and main test)
and is used to check the actual condition of the pipes. The pipe
system may be in operation or disused
For the serviceability test, the testo 324 can be operated together
with the feeding unit. The feeding unit supplies the test medium(gas or air).
The advantages of a measurement with the feeding unit:• Pressure fluctuations that may occur in gas pipes and affect themeasurement are compensated (test independent of the gas
supply).
• No need to dismantle the gas meter/the instrument can be used
at any point on the system.
• Safe measurements thanks to the feed-in of gas, as there is norisk caused by air in a pipe carrying gas.
Test pressure:• Operating pressure <30 hPa = reference pressure (23 hPa)
• Operating pressure >30 hPa = operating pressure
According to DVGW TRGI 2018, the stability time andmeasurement period depend on the pipe volume.
• Pipe volume < 100 l: Adjustment time 10 min,measurement period 5 min.
• Pipe volume < 200 l: Adjustment time 30 min,measurement period 10 min.
• Pipe volume < 300 l: Adjustment time 60 min,measurement period 15 min.
• Pipe volume < 400 l: Adjustment time 120 min,measurement period 20 min.

42

6 Using the product•

Pipe volume < 500 l: Adjustment time 240 min,measurement period 25 min.

Calling up the function:
1. [ ] → Measurements → [OK] → Gas pipe (TRGI 2018→
Leakage test → [OK].
2. Select Feeding with gas (feeding unit required), Feeding withair, as gas meter replacement: [▲], [▼] → [OK].
Setting parameters
Parameter

Explanation

VolumeSet volume
The pipe volume can also bemeasured directly, see [Options]→ Volume

Stability time

Set stability time

Measurement period

Set measurement period

Pipe typeSet pipe type

1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a leakage test (leakage measurement)
1. Start measurement: [ ].
> When Feeding with gas, Feeding with air is selected: carryout steps in accordance with the information on the display andconfirm with [OK].
- Zeroing starts (5 s)- Regulation
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Leakage test (leakage measurement) is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].
- The measurement result is displayed

43

6 Using the product4. Evaluate measurement result:
Leakage test result

Select result

Visual check

Select result

System checked

Enter system details

Gas meter numberEnter gas meter number

Gas meter level

Enter gas meter level

Inspector

Enter name of inspector

5. Edit values: [Edit].
6. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
7. Save entries: [Save].
Option> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Settings: The type of test (reference
pressure/operating pressure) can be set and the reference
pressure of 23 mbar is displayed.
> [Options] → Volume: the pipe volume is determined directly(the option is no longer available after the measurement).
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.4.4.

Combined pretest/main test

The combined pretest/main test is carried out on newly laid pipe
systems with operating pressures of 100 mbar to 1 bar.
The test includes pipe systems including fittings, but without gas
pressure controllers, gas appliances, gas meters and relevant
regulating and safety devices.
A high pressure probe is required for this test.
Calling up the function:> [ ] → Measurement → [OK] → Gas pipe (TRGI 2018→
Combined Pre-/ Maintest → [OK].

446 Using the productSetting parameters
Parameter

Explanation

VolumeSet volume
The pipe volume can also bemeasured directly, see [Options]→ Volume

Stability time

Set stability time

Measurement period

Set measurement period

Test pressure (target) Set test pressure
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a combined pretest/main test
1. Start measurement: [ ].
- Zeroing starts (5 s)- Build up test pressure (target) manually with the test pump or acompressor at the connection provided.
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Combined pretest/main test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

45

6 Using the product6.2.4.5.

Caravan Check

The caravan check is a tightness test in accordance with DVGW
G 607 and relates to vehicles with a permanently installed gas
system. The whole gas installation is checked.
Call up function:> [ ] → Measurements → [OK] → Gas pipe (TRGI 2018→
Caravan Check → [OK].
Set parameters
Parameters

Explanation

Stability time

Set stability time

Measurement period(nominal)

Set measurement period (nominal)

Diff. pressure Δpmax Set maximum permissible differential
pressure
Pressure build-up

Automatic
Pressure is built up automatically via theintegrated pressure pump (up to max.
200 mbar, up to max. line volume 5 l)

Test pressure (nom.) Set test pressure
Vehicle numberEnter vehicle number

Inspector

Enter inspector's name

1. Edit values: [Edit].
2. Enter values: [▲], [▼] and sometimes [◄], [►] → [OK].
Carry out caravan check
1. Start measurement: [ ].
- Zeroing starts (5 s).
- Test pressure (nom.) is built up automatically.

If the test pressure (nom.) is not reached after 2
min. 30 sec., the pressure build-up is terminatedand an information is displayed.
Reasons for aborting the pressure build-up can be
too much leakage in the gas line.
Option46

6 Using the product>>End stability time early: [Next].
End measurement period early: [Next].

If the test pressure drops by more than 10 % within
the stabilization or measuring time, themeasurement is interrupted and an information isdisplayed.
2.
3.

Measurement is cancelled.
Caravan check ends.
Evaluate measurement result: [▲], [▼] → [OK].
Measurement result is displayed.
Save measurement result: [Save].

Options> [Options] → Show Graphic: An excerpt of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are shown inan analogue display.
> [Options] → Overall graphic curve: The measuring values
across the overall measuring time are displayed in a line graph.

6.2.5.

Liquid gas (DVGW TRF 2012)CAUTION
Avoid damage to the instrument due to high pressure!
> The test pressure of 1.2 bar must not be exceeded.

Liquid gas pipes must be subjected to a pressure
test and a main test before corrosion protection isapplied, before plastering or any other covering
work and before a liquid gas vessel is commissioned(filled). It must be certified that the pipelines havebeen properly constructed.
There are 3 different test types to choose from:• Pressure test
During the pressure test, the liquid gas pipes are tested at ahigher pressure than the normal operating pressure. Thismeans that the material is exposed to a greater load. The

47

6 Using the product

•

•

•

6.2.5.1.

pressure test detects weaknesses and shows up any material
defects.
Installed pressure controllers and gas meters must be
dismantled before the pressure test. The pressure test is
carried out before commissioning.
Pressure testing of liquid gas pipelines must be carried out with
air or nitrogen, taking equipment accessories into account.
However, it can also be carried out using water as the test
medium. According to the TRF (Germany), the pressure during
the pressure test must be 1.1 times the permissible pressure(determined by the SSV triggering pressure), but at least 1 bar.
A pressure drop is not permissible after expiry of the stability
time and measurement period.
Main test
The main test (using air or inert gas, e.g. CO2 or N2) is carriedout immediately before commissioning. It is used as a tightness
test (acceptance test) on newly laid or renovated pipes. The
test includes all pipelines up to the closed instrument
connectors of the gas appliances.
Immediately prior to commissioning and following the pressure
test, all pipelines, going as far as the adjustment elements of
the instrument, must be tested for tightness using air at an
overpressure of 100 mbar (TRF, Germany).
Repeated testing PS >0.5 bar
Pipelines with PS >0.5 bar must be subjected to a pressure test
every 10 years. Pipelines with DN > 25 must be subjected to amain test under operating conditions every 2 years.
Repeated testing PS <=0.5 bar
Pipelines with PS <=0.5 bar must be subjected to a main test
every 10 years.

Pressure test
Calling up the function:> [ ] → Measurements → [OK] → Liquid gas (TRF) →Pressure test → [OK].
Setting parameters
Parameter

Explanation

Stability time

Set stability timeTRF 2012 stipulates a stability
time of 10 min.

48

6 Using the productParameter

Explanation

Measurement period

Set measurement period
TRF 2012 stipulates ameasurement period of 10 min.

Test pressure (target) Set test pressure

TRF 2012 stipulates a test
pressure of 1000 mbar.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a pressure test
1. Build up test pressure (target) manually with the test pump or acompressor at the connection provided.
2. Start measurement: [ ].
- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Pressure test is ended.
3. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
4. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.5.2.

Main test

Immediately prior to commissioning and following the pressure test,
all pipelines, going as far as the closed instrument connectors of49

6 Using the productthe gas appliances, must be tested for tightness using air at an
overpressure of 150 mbar (TRF 2012). The pipelines are deemedleak-proof if, following temperature equalisation, the test pressure
does not drop throughout the subsequent 10 minute duration of the
test.
Calling up the function:> [ ] → Measurements → [OK] → Liquid gas (TRF) → Maintest → [OK].
Setting parameters
Parameter

Explanation

Stability time

Set stability time

Measurement period

Set measurement period
TRF 2012 stipulates ameasurement period of 10 min.

Test pressure (target) Set test pressure
According to TRF 2012, the test
pressure is 150 mbar.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a main test
1. Start measurement: [ ].
- The test pressure (target) is built up automatically by the
instrument.
- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Pressure test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].

50

6 Using the productOptions> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼])
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.5.3.

Repeated testing (PS>0.5 bar / PS<=0.5 bar)

The aim of this testing is to establish, at the time of testing, whether
the pipe is in proper working condition for the intended applicationand can satisfy the requirements until the next test.
Calling up the function:> [ ] → Measurements → [OK] → Liquid gas (TRF) →Repeated testing PS>0.5 bar or Repeated testing PS<=0.5
bar → [OK].

Setting parameters
Parameter

Explanation

Stability time

Set stability time

Measurement period

Set measurement period
TRF 2012 stipulates ameasurement period of 10 min.

Test pressure (target) Set test pressure
According to TRF 2012, the test
pressure is 150 mbar.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out repeated testing PS>0.5 bar
1. Build up test pressure (target) manually with the test pump or acompressor at the connection provided.
2. Start measurement: [- Zeroing starts (5 s)
Option].

51

6 Using the product> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Pressure test is ended.
3. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
4 Save the measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.5.4.

Carrying out repeated testing PS <0.5 bar

The aim of this testing is to establish, at the time of testing, whether
the pipe is in proper working condition for the intended applicationand can satisfy the requirements until the next test.
Call up a function:> [ ] → Measurement options → [OK] → Liquid gas (TRF) →Repeated testing PS < 0.5 bar.
Setting parameters
Parameter

Explanation

Stability time

Set stability time

Measurement period

Set measurement period
DVGW TRF 2012 andÖVGW G2/2 specify ameasurement period of 10 min.

Test pressure (target) Set test pressure
DVGW TRF 2012 andÖVGW G2/2 specify a test
pressure of 150 mbar.

52

6 Using the product1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out repeated testing (PS <0.5 bar)
1. Start measurement: [ ].
- The test pressure (target) is built up automatically by the
instrument.
- Zeroing starts (5 s).
Option> End stability time early: [Next].
> End measurement period early: [Next].
- Measurement is cancelled.
- Pressure test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed.
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Factory setting: the values are reset to thedefault settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.6.

Drinking water (ZVSHK sheet as per DIN EN 806-4)

The drinking water pipes are tested for tightness before
commissioning using air/inert gas or water. For reasons of hygiene,
it is best if the pipes remain dry until shortly before commissioning
and do not undergo a main test using water. It is also
recommended that a pressure test be carried out with air as apreventive measure against corrosion in metallic materials.
There are 2 different test types to choose from:• Testing with air
The main test should be carried out with air if:- Following the main test, there is prolonged downtime toeliminate the possibility of bacterial growth- Following the main test, the pipe system cannot remaincompletely filled (e.g. frost period)53

6 Using the product-•6.2.6.1.

The corrosion resistance of a material of a partially-filledpipe is compromised- In buildings with more stringent hygienic requirements (e.g.
hospitals), it may be necessary to use inert gases toeliminate the risk of condensation of humidity in the pipeline.
Testing with water
The main test should only be carried out with water if testing istaking place shortly before the commissioning of a drinking
water system. According to the ZVSHK sheet as per DIN EN
806-4, there are three different test methods. These depend on
various material properties.
The main test with water can only be carried out if:- From the main test up until the drinking water installation iscommissioned, the water is changed regularly (after 7 daysat the latest).
- It is guaranteed that the house or construction site water
connections are approved for connection and operation.
- The pipe system is filled hygienically.
- The system remains fully filled from the main test up untilcommissioning (no partial filling!).

Testing with air – main test
Calling up the function:> [ ] → Measurements → [OK] → Drinking water → Test
with air → Main test → [OK].
Setting parameters
Parameter

Explanation

VolumeSet volume
The pipe volume can also bemeasured directly, see [Options]→ Volume

Stability time54

Set stability time

6 Using the productParameter

Explanation

Measurement period

Set measurement period

According to DIN EN 806-4,
the test time is at least
120 min after an appropriate
stability time and a pipe
volume < 100 l. For eachfurther 100 l, themeasurement period
increases by 20 min.
Test pressure (target) Set test pressure

According to DIN EN 806-4,
the test pressure is 150 mbar.

55

6 Using the product
Carrying out a main test
1. Start measurement: [ ].
- Zeroing starts (5 s)- The test pressure (target) is built up automatically by the
instrument.
Option> End stability time early: [Next]> End measurement period early: [Next]- Main test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Volume: The pipe volume is determined directly(this option is no longer available after the measurement).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.
> [Options] → Settings: The type of test (reference
pressure/operating pressure) can be set and the reference
pressure of 23 mbar is displayed.

6.2.6.2.

Testing with air – pretest

The pretest is carried out to ensure that the test pressure for thepipe system is not exceeded. The pretest is carried out with amaximum test pressure of 3 bar. Once the test pressure is applied,
the test time is 10 min.
CutionAvoid damage to the instrument due to high pressure!
> For tests with a test pressure of > 1 bar, a high pressure probe(art. no. 0638 1748) must be used.

56

6 Using the productCalling up the function:> [ ] → Measurements → [OK] → Drinking water → Test
with air → Pretest → [OK].
Setting parameters
Parameter

Explanation

Stability time

Set stability time

Measurement period

Set measurement period

According to DIN EN 806-4,
the test time is 10 min.
Nominal diameter

Select nominal diameter

Test pressure (target) Set test pressure

According to DIN EN 806-4,
the test pressure for DN 50
pipes is 3 bar and for DN 50100 pipes, it is 1 bar.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a pretest
1. Build up the test pressure (target) manually, for example with atest pump or a compressor.
2. Start measurement: [ ].
- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Pretest is ended.
3. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
4. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],
[▼]).

57

6 Using the product> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.
> [Options] → Settings: The type of test (reference
pressure/operating pressure) can be set and the reference
pressure of 23 mbar is displayed.

6.2.6.3.

Test with water
A high pressure probe is required for this test.
Calling up the function:>[ ] → Measurements → [OK] → Drinking water → Test
with water → [OK].

Setting parameters
Parameter

Explanation

Pipe material

Select pipe material

Crimp connection

Enable/disable

Stability time

Set stability time

The ZVSHK sheet as per DIN
EN 806-4 stipulates a stability
time of 30 min if there is asignificant difference between
the ambient and watertemperature.
Measurement period

58

Set measurement period6 Using the productParameter

Explanation

Test pressure (target) Set test pressure
The ZVSHK sheet as per DIN EN
806-4 stipulates the following
times and pressures:• Testing crimp connections:pressure max. 6 bar, test time
15 min• Testing metal multi-layercomposite and PVC pipes:
pressure max. 11 bar, test
time 30 min• Testing PP, PE, PE-X and PB
pipes and combined
installations made of metal
and multi-layer composite
pipes:◦ Pressure 11 bar, test time
30 min◦ Reduce pressure to
5.5 bar (drain water fromsystem), further test timeof 120 minutes.
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].
Carrying out a test
To prevent the penetration of moisture into the instrument,
dry hoses should be used.
-

The test pressure (target) must be built up manually.

1. Start measurement: [ ].
- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Testing of crimp connection ended: [Next].

59

6 Using the product2. Start pressure test: [Next]- Zeroing starts (5 s)
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Pressure test is ended.
3. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
4. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.
> [Options] → Settings: The type of test (reference
pressure/operating pressure) can be set and the reference
pressure of 23 mbar is displayed

6.2.7.

Waste water (DIN EN 1610) with air
Calling up the function:>[] → Measurements → [OK] → Waste water → [OK].

Setting parameters
Parameter

Explanation

Test method

Select test method

Pipe material

Select pipe material

Nominal diameter

Select nominal diameter

Stability time

Set stability time

Measurement period

Set measurement period

Test pressure (target) Set test pressure
1. Edit values: [Edit].
2. Enter values. [▲], [▼] and sometimes [◄], [►] → [OK].

60

6 Using the product
Carrying out a main test
1. Start measurement: [ ].
- Zeroing starts (5 s)- Test pressure (target) is built up automatically by the instrument
Option> End stability time early: [Next]> End measurement period early: [Next]- Measurement is cancelled.
- Main test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: The measuring values are
displayed in the form of a line graph. > [Options] → Show
Graphic: a section of past measuring values is displayed in aline graph (zoom function available [▲], [▼]).
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.
> [Options] → Settings: The type of test (reference
pressure/operating pressure) can be set and the reference
pressure of 23 mbar is displayed.

6.2.8.

Programs

6.2.8.1.

Spot measurement

This program is predefined to carry out a spot measurement ofpressure and temperature. The current pressure values (Press.,→◌ Press., Diff Press. ΔP) and temperature values (Temp T1(ext.), Temp T2 (ext.) and Diff.Temp.(ext)) are displayed.
Calling up the function:> [ ] → Measurements → [OK] → Programs → Spotmeasurement → [OK] → Enable.
- Current measuring values are displayed- Zeroing starts (5 s)
Option61

6 Using the productSpotmeasurement

1. [Edit].
2. Edit program name: → [Edit] → [▲], [▼]and sometimes [◄], [►] → [OK].
3. Save changes: [Finished].

Configuremeasurementview

1. Select the program: [▲], [▼] → [Edit].
2. Select Measurement view: [▼] → [Edit].
3. Select parameter: [▲], [▼] → [(enabled), [ ] (disabled)
4. Save changes: [Finished].

1. Start measurement: []].

> End measurement period early: [- Measurement is cancelled.
2. Save measurement result: [OK].

]Options> >[Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Configure Graphic: the measurement
parameters to be represented (max. 4) can be displayed ( ) or
hidden ( ).
> [Options] → Number of lines: change the number ofmeasuring values per display page.
> [Options] → Manometer: The measuring values are displayedin the same way.
> [Options] → Measurement view: (this function is not available
during a measurement): The reading display menu is opened.
Up to 8 measurement parameters can be selected.
> [Options] → Measurement view order: (this function is notavailable during a measurement): the reading display order canbe changed.
> [Options] → Note: customer-specific notes can be stored.

6.2.8.2.

62

Programs 2-5

Four measurement programs for different measurement types canbe configured and enabled. The measurement programs are used
to save and represent measuring sequences. At the end of themeasuring process, the measuring values of a measurement
program are automatically saved in a record.
Only one measurement program can be activated in the instrument.

6 Using the productCall up the function:> [] → Measurements → [OK] → Programs → [OK].

Selecting and setting a program:> Select and set program and then confirm with [Finished].
Setting options:Parameter

Function

Program

1. Select the program: [▲], [▼] → [Edit].
2. Edit program name: → [Edit] → [▲], [▼]and sometimes [◄], [►] → [OK].
3. Save changes: [Finished].

Configuremeasurementview

1. Select the program: [▲], [▼] → [Edit].
2. Select Measurement view: [▼] → [Edit].

Meastime

1. Select the program: [▲], [▼] → [Edit].
2. Select Gas time: [▼] → [Edit].
3. Enter values. [▲], [▼] and sometimes [◄],[►] → [OK].
4. Save changes: [OK].

Measuring rate

The measuring rate is the storage cycle formean values It is programmed in units ofseconds, minutes, whereby the smallest
possible measuring rate depends on thenumber and type of connected probes.
1. Select the program: [▲], [▼] → [Edit].
2. Select Measuring rate: [▼], [►] → [Edit].
3. Enter values. [▲], [▼] and sometimes [◄],[►] → [OK].
4. Save changes: [OK].

Stability time

1. Select the program: [▲], [▼] → [Edit].
2. Select Measuring rate: [▼], [►] → [Edit].
3. Enter values. [▲], [▼] and sometimes [◄],[►] → [OK].
4. Save changes: [OK].

3. Select parameter: [▲], [▼] → [ ](enabled), [ ] (disabled), tee table below
4. Save changes: [Finished].

63

6 Using the productSelectable measurement parameters
Measurement
parameter

Description

Press.

Current pressure at the pressureconnection ◌→Start pressure

Start pressure at the pressure connection◌→

End pressure

End pressure at the pressure connection◌→

Diff Press. ΔP

Difference between the start pressure andthe current pressure at the pressureconnection ◌→→◌ Press.

Current pressure at the pressureconnection →◌→◌ Press.←→ Press.

Differential pressure between the
instrument's two pressure connections

Press P1 (ext)Current pressure of the high pressureprobe at probe socket P1

Press P2 (ext)Current pressure of the high pressureprobe at probe socket P2

Start pressure (ext.)

Start pressure of the high pressure probe(P1 or P2)

End pressure (ext)

End pressure of the high pressure probe(P1 or P2)

Diff Press. (ext)

Difference between the start pressure andthe current pressure of the high pressureprobe

P1(ext)←→P2(ext)

Differential pressure between the current
pressure at probe socket P1 and P2

Temp T1 (ext)Current temperature at probe socket T1

Temp T2 (ext)Current temperature at probe socket T2

Start temperature(ext)

Start temperature at T1 or T2

End temperature (ext) End temperature at T1 or T2

64

Diff Temp. (ext)

Difference between the start temperatureand the current temperature at T1 or T2

T1(ext)←→T2(ext)

Differential temperature between thecurrent temperature at probe socket T1
and T2

6 Using the productMeasurement
parameter

Description

Flow rate

Leak rate calculated via the flow rate
sensorTest press.(targ)

Required test pressure

Diff Press. Δp max

Maximum permissible differential pressure

Diff Temp ΔT max

Maximum permissible differential
temperature

Test Result

Option for evaluating the result:
Pass
Not checked
FailedEnabling/disabling a program:> Select the program: [▲], [▼] → [Enable]- When enabling a program: The program is enabled and thereading display matching the selected program is opened.
Zeroing starts (5 s)Once the measurement program has been enabled, it ispossible to change the parameters Test press. (targ),
Diff. Press. Δp max, Diff. Temp ΔT max and
Test Result.
1. Select the parameter.
2. [Options] → [Edit] → [OK].
3. Enter values. [▲], [▼] and sometimes [◄], [►] →[OK].
Starting the program:
1. Start measurement: [].
- If a test pressure (target) has been set, the pressure can bebuilt up automatically by the instrument (up to 300 mbar).
Carry out the steps according to the notes on the display andconfirm with [OK].
If the set test pressure (target) is greater than 300 mbar, thetest pressure must be built up manually.
Option> End stability time early: [Next]> End measurement period early: [- Measurement is cancelled.
2. Save measurement result: [OK].

]656 Using the productOptions> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Configure Graphic: the measurement
parameters to be represented (max. 4) can be displayed ( ) or
hidden ( ).
> [Options] → Number of lines: change the number ofmeasuring values per display page.
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Measurement view: (this function is not available
during a measurement): The reading display menu is opened.
Up to 8 measurement parameters can be selected.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.9.

66

Controller test

There are 4 different test types to choose from:
Test type

Explanation

Static pressure

The static pressure measurement
enables defects in the pressure reducer(controller) and the shut-off valve (ballvalve) upstream of the consumer to be
detected.

Flow pressure

The flow pressure measurement enabledefects in the pressure reducer(controller) to be detected.

SSV triggeringpressure

This measurement enables you toascertain whether the triggering pressureof the SSV (safety shut-off valve) has
been set correctly.

SRV triggeringpressure

The measurement enables you toascertain whether the triggering pressureof the SRV (safety relief valve) has bee
set correctly.

6 Using the product6.2.9.1.

Static pressure

The static pressure measurement enables defects in the pressure
reducer (controller) and the shut-off valve (ball valve) upstream of
the consumer to be detected. It is important to ensure that the valve
upstream of the controller is open and the valve upstream of theconsumer is closed.
Overview and interpretation of results:
Description

Explanation

Pressure increases Controller leaks
Pressure drops and Ball valve downstream of controller leaks
then rises again
Pressure isconstant

Ball valve and controller OK

Calling up the function:> [ ] → Measurements → [OK] → Controller test → [OK].
1. Select Static pressure. [▲], [▼] → [OK].
- Measurement is started.
The following values are displayed:
Parameter

Explanation

Pressure

Current pressure

Start pressure

Pressure at the start of the measurement

ΔpPressure differential between startpressure and current pressure

Min

Lowest pressure during the current
measurement

Max.

Highest pressure during the current
measurement

2. End measurement: [ ].
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: the measuring values are displayedin the same way.

67

6 Using the product>6.2.9.2.

[Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

Flow pressure
Calling up the function:> [ ] → Measurements → [OK] → Controller test → [OK].
1. Select Flow pressure. [▲], [▼] → [OK].
- Measurement is started
The following values are displayed:
Parameter

Explanation

Pressure

Current pressure

Min

Lowest pressure during the current
measurement

Max.

Highest pressure during the current
measurement

2. End measurement: [ ].
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.9.3.

SAV_triggering pressure

For the measurement, it is important to ensure that the valve
upstream of the SSV is open and the valve upstream of theconsumer is closed. The pressure downstream of the controller(secondary side) in the gas pipe must be increased. If the triggeringpressure is exceeded, the SSV is triggered, indicated by a click,and the gas supply is blocked on the primary side. The existingpressure at the time of the click (secondary side) is the SSV
triggering pressure.
The SSV stop must then be manually released again.

68

6 Using the productCalling up the function:[ ] → Measurements → [OK] → Controller test → [OK].
SAV_triggering pressure → [OK].
Measurement is started
Gas is released from the pipe into the gas feeding unit. Carryout steps in accordance with the information on the display andconfirm with [OK].
- Zeroing starts (5 s).
- The pressure is increased automatically by the instrument.
The following values are displayed:>
1.
-

Parameter

Explanation

Pressure

Current pressure

Max.

Highest pressure during the current
measurement

2. End the measurement as soon as the safety shut-off valve
closes: [ ].
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.2.9.4.

SRV triggering pressure

It is important to ensure that the valve upstream of the SRV is open
and the valve upstream of the consumer is closed. The pressure
downstream of the controller (secondary side) in the gas pipe must
be increased. If the triggering pressure is exceeded, the SRV
opens, indicated by a hissing sound, and gas is released on thesecondary side. The pressure during opening (secondary side) is
the SRV triggering pressure. The SRV closes again automaticallyonce the pressure falls below the triggering pressure.
Calling up the function:> [ ] → Measurements → [OK] → Controller test → [OK].
1. SRV triggering pressure → [OK].

696 Using the product-Measurement is started
Gas is released from the pipe into the gas feeding unit. Carryout steps in accordance with the information on the display andconfirm with [OK].
- Zeroing starts (5 s).
- The pressure is increased automatically by the instrument.
The following values are displayed:
Parameter

Explanation

Pressure

Current pressure

Max.

Highest pressure during the current
measurement

2. End the measurement as soon as the safety shut-off valve
closes: [ ].
3. Save measurement result: [Save].
Options> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],[▼]).
> [Options] → Manometer: the measuring values are displayedin the same way.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.

6.3.
6.3.1.

Transferring data
Record printer

To be able to transfer data to a testo record printer via the infraredor Bluetooth interface (optional), the printer used must be enabled,
see Printer, page 30.
Data is printed out via [printout is possible.

6.3.2.

70

PC/pocket PC]. The function is only available if a

Data transfer to a PC can take place via USB, IrDA or Bluetooth®.
You must also refer to the documentation that comes with thesoftware.

6 Using the product6.3.3.

Data transfer to IrDA record printerTo transfer data from the testo 324 to the IrDA record printer, theprinter can be placed in a storage compartment on top of the testo
324.

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7 Maintaining the product7

Maintaining the product7.1.

Cleaning the measuring instrument

7.2.

Regular calibration

7.3.

> If the housing of the measuring instrument is dirty, clean it witha damp cloth. Do not use any aggressive cleaning agents orsolvents! Mild household cleaning agents and soap suds may
be used.

Leakage measuring instruments must be calibrated once a year inaccordance with DVGW guideline G5952. Calibration is performedby Testo Customer Services or a service centre authorised by
testo.

Replacing the gas bladder

The gas bladder for the feeding unit must be replaced every 5
years (production date stated on barcode sticker on the case). It isreplaced by Testo Customer Service or a service centre authorized
by Testo.
After replacing the gas bladder, flushing is required (filland empty the feeding unit once).
Identifying the production date
Barcode sticker 1

1
2

72

Barcode sticker 2

Year of production (example: 5 stands for the year 2015)
Month of production (example: 04 stands for the month of April)8 Tips and assistance8

Tips and assistance

8.1.

Questions and answers
Question

Possible causes/solution

Measuring instrument
Battery spent.
switches itself off or will not > Charge battery
switch on.
No pressure can be build
up, or the pressure isfalling.

Inlet or outlet is open.
There is a leak.
> Check connections.
> Check system for leaks.

testo 324 stops
responding.

> Press reset button (1).
If we have not been able to answer your question, please contact
your dealer or Testo Customer Service. For contact details, see theback of this document or visit the website www.testo.com/servicecontact.

8.2.

Accessories and spare parts
Description

Article no.

High pressure probe up to 25 bar

0638 1748

testo 316-2

0632 3162

testo 316-1

0632 0316

Surface probe

0604 0194

Connecting line, length 1.5 m

0430 0143

Connection hose (2 m) for extension purposes 0554 3158
Pressure side with coupling pin, test side withcoupling
Dual valve connector

0554 3161

Conical test stop 1/2"

0554 3151

73

8 Tips and assistanceDescription

Article no.

Conical test stop 3/4"

0554 3155

High-pressure stage stop 3/8" & 3/4"

0554 3163

High-pressure stage stop 1/2" & 1"

0554 3164

High-pressure stage stop 3/4" & 1 1/4"

0554 0533

High-pressure connection

0554 3139

Pressure release plug

0554 3171

Hose set with stop valve

0554 3172

Connection hose 2 m, on both sides with quickrelease coupling

0554 0529

Single pipe counter cap

0554 3156

Mains unit

0554 1096

IrDA record printer0554 0549

testo BLUETOOTH®/ IRDA printer0554 0620

Spare printer paper (6 rolls)

0554 0568

PC software easyHeat

0554 3332

USB cable

0449 0047

System case incl. feeding unit, connection block and 0516 3240
connection hose
Instrument case (height: 130 mm) for instrument,
probes and accessories

0516 3300

Carrying strap

0516 0402

TopSafe for testo 316-1

0516 0189

ISO calibration certificate for sensor

0520 0005

For a complete list of all accessories and spare parts, please referto the product catalogues and brochures or visit our website
www.testo.com

8.3.

74

Updating the instrument software

Under www.testo.com/download-center you can download thecurrent instrument software (Firmware) for testo 324 (registration
required).
> Unplug the mains unit and switch off the testo 324.
1. Hold down [▲].
2. Plug in the mains unit, continue holding down [▲].
- The display shows Firmware update along the bottom edge.

8 Tips and assistance
3. Release [▲].
4. Insert the connecting cable (0449 0047) into the USB-port on
the instrument, then connect it to the PC.
- Your PC recognises the testo 324 as a removable medium.
5. Copy the new file (ap324rel.bin) to the detected removablemedium.
- On the display the status bar progresses from left to right. This
process may take a few minutes.
6. Disconnect the connecting cable from the testo 324.
- Once the instrument software (firmware) has been updated, thesystem will automatically reboot and is ready for use.

75

Testo SE & Co. KGaA
Celsiusstraße 279822 Titisee-Neustadt
Germany
Telefon: +49 7653 681-0
E-Mail: info@testo.de
Internet: www.testo.com

0970 3241 en 11 – 03.2024