Lindab LTEST Manuale utente

EN Operating Instructions

Leakage Tester LTEST

DE Bedienungsanleitung

Dichtheitsprüfgerät LT 600

SE Bruksanvisning

Läckagemätare LTEST

FR Mode d'emploi

Testeur d'étanchéité LTEST

lindab | we simplify construction

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Contents

1 Description............................. 4

2 Technical data .......................... 4

3 Controls ............................... 5

4 Test principle ........................... 5

5 Preparing a duct system for testing ......... 6

6 Test sequence .......................... 7

7 Using for the ﬁrst time, and performing a test . 7

7.1 Control panel functions ................... 7

7.2 Menu description........................ 8

7.3 First test ............................... 9

8 Expert mode .......................... 11

9 Messages ............................ 11

10 Main menu ............................ 12

10.1 Print ................................. 12

10.2 Chart ................................ 12

10.3 Save ................................. 12

10.4 Data admin............................ 13

10.5 Laboratory mode....................... 14

10.6 Custom airtightness class................ 14

10.7 Differential pressure .................... 14

10.8 Setup ................................ 15

10.9 Units of measurement ................... 15

10.10 Calibration ............................ 15

10.11 Info .................................. 16

11 Content of report printout ................ 16

12 Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

13 Operation and maintenance .............. 17

14 Package contents ...................... 18

15 Available accessories and consumables .... 18

16 Declaration of conformity ................ 18

17 Warranty and service.................... 19

18 Appendix ............................. 20

Inhaltsverzeichnis

1 Anwendungsbeschreibung ............... 22

2 Techn. Daten .......................... 22

3 Bedienelemente........................ 23

4 Messprinzip ........................... 23

5 Vorbereitung eines zu prüfenden

Luftleitungssystems..................... 24

6 Testablauf ............................ 25

7 Erste Inbetriebnahme und Durchführung

einer Messung ......................... 25

7.1 Bedienfeld-Funktionen .................. 25

7.2 Menü-Übersicht........................ 26

7.3 Messung ............................. 27

8 Experten-Modus ....................... 29

9 Hinweismeldungen ..................... 29

10 Hauptmenü ........................... 30

10.1 Drucken .............................. 30

10.2 Diagramm ............................ 30

10.3 Speichern............................. 30

10.4 Datenverwaltung ....................... 31

10.5 Labor-Modus .......................... 32

10.6 Benutzerdeﬁnierte Dichtheitsklasse ........ 32

10.7 Differenzdruckanzeige................... 32

10.8 Setup ................................ 33

10.9 Einheiten ............................. 33

10.10 Kalibrierung ........................... 33

10.11 Info .................................. 34

11 Inhalt des Protokoll-Ausdrucks ............ 34

12 Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

13 Betrieb und Wartung .................... 35

14 Lieferumfang .......................... 36

15 Erhältliches Sonderzubehör und Ver-

brauchsmaterial........................ 36

16 Konformitätserklärung................... 36

17 Gewährleistung und Service .............. 37

18 Anhang............................... 38

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Table des matières

1 Domaine d'application................... 58

2 Caractéristiques techniques .............. 58

3 Organes de commande.................. 59

4 Principe de mesure ..................... 59

5 Préparation du réseau aéraulique à tester ... 60

6 Déroulement du test .................... 61

7 Première utilisation et réalisation d'une

mesure ............................... 61

7.1 Fonctions du panneau de commande ...... 61

7.2 Présentation des menus ................. 62

7.3 Mesure............................... 63

8 Mode Expert .......................... 65

9 Messages d'avertissement ............... 65

10 Menu principal ......................... 66

10.1 Imprimer.............................. 66

10.2 Diagramme ........................... 66

10.3 Enregistrer ............................ 66

10.4 Gestion des données ................... 67

10.5 Mode Laboratoire ...................... 68

10.6 Classe d'étanchéité déﬁnie par l'utilisateur... 68

10.7 Afﬁchage de la pression différentielle....... 68

10.8 Conﬁguration .......................... 69

10.9 Unités................................ 69

10.10 Étalonnage............................ 69

10.11 Informations........................... 70

11 Contenu d'un protocole imprimé........... 70

12 Logiciel............................... 71

13 Utilisation et maintenance ................ 71

14 Contenu de la livraison .................. 72

15 Accessoires disponibles et consommables .. 72

16 Déclaration de conformité................ 72

17 Garantie et service après-vente ........... 73

18 Annexe ............................... 74

Innehållsförteckning

1 Användningsområde .................... 40

2 Tekn. data ............................ 40

3 Manöverelement ....................... 41

4 Mätprincip ............................ 41

5 Förberedelse av luftkanalsystem som ska

testas ................................ 42

6 Testmetod ............................ 43

7 Första idrifttagning och genomförande av

en mätning ............................ 43

7.1 Manöverfunktioner ..................... 43

7.2 Menyöversikt .......................... 44

7.3 Mätning .............................. 45

8 Expertläge ............................ 47

9 Informationsmeddelanden ............... 47

10 Huvudmeny ........................... 48

10.1 Utskrift ............................... 48

10.2 Diagram .............................. 48

10.3 Lagring............................... 48

10.4 Datahantering ......................... 49

10.5 Laboratorieläge ........................ 49

10.6 Manuellt deﬁnierad täthetsklass ........... 50

10.7 Differenstryckvisning.................... 50

10.8 Konﬁgurering .......................... 51

10.9 Enheter............................... 51

10.10 Kalibrering ............................ 51

10.11 Info .................................. 52

11 Innehåll i protokollutskrift ................ 52

12 Programvara .......................... 53

13 Drift och underhåll ...................... 53

14 Leveransomfattning..................... 54

15 Tillbehör och förbrukningsmaterial ......... 54

16 Konformitetsförsäkran................... 54

17 Garanti och service ..................... 55

18 Bilaga ................................ 56

manual-LTEST-1082_EN-DE-FR-SE.indd 3 2012-03-28 12:32:35

1. Description

• The Lindab leakage tester is designed to verify the

airtightness of duct systems, but can also be used

to test other enclosures (air conditioning units, cli-

mate chambers, electrical cabinets, furnaces, etc.).

• The device measures the ﬂow rate that is necessary

in order to maintain the selected test pressure in an

enclosed system.

• The device uses a membrane keypad and an OLED

colour display to operate a menu-drive interface.

• The test results can be sent to a local thermal printer

(included) via a wireless infrared interface.

• The device can permanently store data, deﬁne cus-

tomers and measuring points, and transfer data to a

computer via a USB interface.

Airtightness class

DIN EN 13779

Airtightness class

EUROVENT 2/2

Airtightness class

DIN 24194 Part 2

Limit value for

leakage ﬂow rate (fmax)

m³ s-1m-2

A A II 0.027 x pt0.65 x 10-3

B B III 0.009 x pt0.65 x 10-3

C C IV 0.003 x pt0.65 x 10-3

D 0.001 x pt0.65 x 10-3

2. Technical data

Test values:

• Pressure measurement:

Principle: Piezoresistive semiconductor sensor

Measuring range: ±7000 Pa

Resolution: 0.1 Pa to ±900 Pa, then 1 Pa

Accuracy: ± 0.5 Pa or ± 2.5 % of the test value,

whichever is greater

• Flow rate measurement (based on 1013 hPa and 20 °C):

Principle: Hot ﬁlm anemometer

Measuring range: 0.0000 to 55.00 l/s (230 V, 50 Hz)

0.0000 to 40.00 l/s (110V, 60 Hz)

Resolution: 0.0001 l/s to 0.3000 l/s, 0.001 l/s

to 3.000 l/s, 0.01 l/s > 3.00 l/s

Accuracy: ± 0.0009 l/s or ± 5 % of the test

value, whichever is greater

• Multilingual user interface (German, English, French,

Swedish)

• The device directly displays the current ﬂow rate

without the need for analysis.

• The airtightness is evaluated on the basis of the

airtightness classes deﬁned in DIN EN 13779 (identi-

cal to DIN EN 12237, 1507, 15727). The table below

shows the corresponding classes in other (older)

standards.

• The Lindab leakage tester can be used to measure

positive and negative pressure – simply change the

Ø50 mm hose connector and select the relevant test

pressure.

• The LT 600 is not approved for continuous use for

long periods in an attempt to locate leakages.

• Measuring range of adapters (5% accuracy):

Adapter 0.3: 0.01 to 0.3000 l/s

Adapter 3.0: 0.300 to 3.000 l/s

No adapter: 3.01 to 55.00 l/s

• Electrical connection

Power supply:

230 V, 50 Hz

110 V, 60 Hz with reduced

ﬂow rate (40 l/s)

Current consumption: max. 9 A

• Working temperature range: 5 °C to 40 °C

• Storage temperature range: - 20 °C to + 50 °C

• Weight: approx. 9.5 kg (without accessories)

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3. Controls

Figure 2: Controls

1 Power switch

2 Bayonet connection for test pressure (positive

pressure)

3 Connection for differential pressure (negative

pressure)

4 Infrared interface for TD600 thermal printer

5 50 mm diameter air connection - negative

pressure

6 OLED colour display

7 Rotating handle

8 Membrane keypad

9 USB port

10 50 mm diameter air connection - positive

pressure

11 Power supply

4. Measuring principle

Leakage testing is stipulated in the European Energy

Performance of Buildings Directive (EPBD) and in

standards like

DIN EN 13779, in order to save energy and to ensure

that air conditioning and ventilation systems operate

efﬁciently.

The airtightness of duct systems is tested by bringing

the system to a constant test pressure, then measuring

the leakage ﬂow rate that must be supplied in order to

maintain this pressure.

This ﬂow rate corresponds to the leakage rate of the

duct section being tested. The test conditions are

described in DIN EN 12237 for circular ducts and in DIN

EN 1507 for rectangular ducts. DIN EN 1751 contains

the test conditions for dampers and valves, and DIN

EN 15727 covers other air conditioning and ventilation

components.

The leakage tests should be carried out in situ as

described in DIN EN 12599 (usually at lower pressures

as described in the product standards) – "DIN EN

12599 Test procedures and measuring methods for

handing over installed ventilation and air conditioning

systems".

VOB C stipulates that acceptance testing must be car-

ried out in accordance with DIN EN 12599.

The diagram below illustrates the test setup concept.

• Two integrated fans blow/extract air through the Ø50

mm hose into/out of the connected duct system(s)

being tested. The air supply causes the pressure

in the duct system to increase. This pressure is

returned to the device via the connected pressure

measuring tube.

• In automatic mode, the device automatically brings

the system pressure to the selected test pressure.

Figure 2: Measuring principle, leakage test with the

Lindab LT 600

manual-LTEST-1082_EN-DE-FR-SE.indd 5 2012-03-28 12:32:37

5. Preparing a duct system for testing

The duct system should be tested in accordance with

DIN EN 12237, DIN EN 1507, DIN EN 1507 and DIN EN

12599. A speciﬁc pressure may be stipulated as stated

in the standards.

Any positive or negative target pressure can be

selected within the measuring range. If the duct system

is particularly large or complex, leakage testing can

be restricted to sections of the system. (See DIN EN

12599)

DIN EN 12599 compliant leakage testing should be car-

ried out while the duct system is being installed, when

the ducts are still accessible (for example they have not

been insulated yet). The duct surface area being tested

should always be greater than 10 m². The duct surface

area should be measured and calculated as deﬁned in

DIN EN 14239, and should be established in advance.

You are recommended to estimate the anticipated leak-

age ﬂow rate in advance (see the appendix).

Before you start testing, seal off the duct section being

tested from the rest of the system. All openings, out-

lets, etc. must be carefully sealed.

It is extremely important to seal properly around

the openings and the test connections.

The connecting points in the duct system being tested

must be deﬁned in advance, for the 50 mm air hose as

well as the thin pressure measuring tube. The connect-

ing points should be about 2 m apart from each other

to prevent one affecting the other.

Use suitable joints to prepare the connections for the

50mm air hose and the pressure measuring tube.

Do not subject the hose connections to torsional

stresses.

Use the connection on the front (10) for positive

pressure, and the connection on the top (5) for

negative pressure.

Always use adapters on the front, even for negative

pressure testing.

Next, attach the thin pressure measuring tube to the

"+" connection (2) on the front, to the left above the 50

mm connection.

The pressure measuring tube is always attached

to the "+" connection (2). The device automatically

detects positive pressure and negative pressure.

The "-" connection (3) must be left clear.

A bayonet closure is used for the "+" connection of the

pressure measuring tube: turn clockwise to lock and

counterclockwise to open.

In principle, you should always start the leakage

test initially without an adapter. After you ﬁnd out

the leakage ﬂow rate, you can use the relevant adapter

to improve the measuring accuracy. See page 4. The

adapters have different names, indicating the maximum

measurable ﬂow rate in l/s.

DIN EN 15727 compliant measurements usually use

lower ﬂow rates and are carried out in the same way. It

is also possible to depart from the recommended spac-

ing of 2 m between the hose and the tube. In order to

take measurements on the pressure side for very small

components, the thin 4m tube can be plugged directly

into the adapter instead of the 50 mm hose, and a

nipple connection is used with the component.

Figure 3: Connection to the duct system

manual-LTEST-1082_EN-DE-FR-SE.indd 6 2012-03-28 12:32:38

6. Test procedure

If possible, the duct section being tested should be

brought to a positive or negative test pressure equal

to the operating pressure pdesign. The standards state

that the the pressure must be maintained to within ±

5% for ﬁve minutes*. The test cycle can be stopped at

any time.

The LT 600 automatically conﬁgures the test cycle in

normal operating mode.

In laboratory mode, you can use the arrow keys to

conﬁgure the test cycle yourself.

If the selected pressure cannot be reached, the

leakage ﬂow rate can be tested at a lower pres-

sure in accordance with DIN EN 12599 and then

extrapolated for the higher pressure. The device

evaluates the lowest pressures itself.

You should then select a lower test pressure – the

device automatically performs the evaluation on the

basis of the airtightness class.

If the measured leakage ﬂow rate is outside the meas-

uring range of the adapter used, change the adapter

(enter the change of adapter).

It is not necessary to correct the test values to take

account of different temperatures or the air pressure.

Please note the relevant recommendations and com-

ments in DIN EN 1507, DIN EN 12237, DIN EN 1507,

DIN EN 15727 and DIN EN 12599.

* This 5 minute requirement is now virtually obsolete

because modern test equipment is generally much

quicker to bring the test conditions to a stable state.

7. Using for the ﬁrst time, and performing a test

Use the supplied power cable to connect the Lindab

LT 600 to the mains (230 V, 50 Hz or 110 V, 60 Hz) (11).

Switch on the device with the power switch (1). When

the device powers up, the ﬁrmware version appears in

the display. If this is the ﬁrst time the device has been

used, the display shows the user prompts, otherwise

it shows the operating mode most recently selected in

setup.

7.1 Control panel functions

Note that the display (6) changes according to the

selected status. The display shows the test values and

the options that can be selected from the membrane

keypad (8).

Cursor up

Number input up

Letter input up

Scroll

Back Cursor down Right

Menu Number input down Next

Cursor right Letter input down Select

Conﬁrm

New

Stop

Press the MENU key once to go to the main menu and twice to open the input screen for a test.

manual-LTEST-1082_EN-DE-FR-SE.indd 7 2012-03-28 12:32:38

7.2 Menu description (in brief)

Display the bar chart

Permanently save the test

View saved tests

Manual fan control

Custom airtightness class

"Differential pressure measuring instrument"

Device and function settings

Calibration (password protected)

Usage information

Chart

Save

Data admin

Laboratory mode

Custom

Differential pressure

Setup

Calibration

INFO

Print report

Results

Test in expert mode

(Go to Setup to make this the default

tartup mode)

Enter/change data or start the test using the

values displayed

The test (duration 5 min) runs after the

self test and ends automatically or if it is

cancelled

Select the airtightness class

Enter the test pressure

Enter the surface area being tested

Test in user prompt mode

Start screen

manual-LTEST-1082_EN-DE-FR-SE.indd 8 2012-03-28 12:32:38

7.3 First test

Display Description

Start screen

Display of device type and ﬁrmware version

The device automatically starts in user prompt mode:

• Follow the prompts and select the airtightness class for the test using

the or key.

• Then press the Next key.

• Enter the duct surface area for the test using the or key

Calculated according to DIN EN 14239 or from a CAD system.

(Note: Not the m² calculated according to DIN 18379)

• Then press the Next key.

• Enter the test pressure you want using the or key. (Be careful with

the plus or minus sign)

• Attach the 50 mm air hose depending on the selected pressure (nega-

tive pressure > top of case, positive pressure > front of case).

• Always attach the pressure measuring tube to "+".

• Then press the Next key.

The preliminary calculation of the maximum permitted leakage ﬂow rate

appears here.

The suggested adapter and the current adapter are shown.

• If necessary, change the adapter that is "In use" to the

suggested type using the or key.

Check the installed adapter.

• Then press the Next key.

From here the display is the same in user prompt mode and in expert mode.

Follow the further instructions or adjust the parameters as described in 9. Expert mode.

manual-LTEST-1082_EN-DE-FR-SE.indd 9 2012-03-28 12:32:39

Shows the conﬁgured parameter and the maximum permitted leakage ﬂow

rate.

• Press the to start the test.

• A self test is carried out before the test starts.

• The test starts once the selected pressure is reached, and continues for

ﬁve minutes.

• You can interrupt the test at any time by pressing Stop.

While the test is running, the achieved pressure and the current ﬂow rate

are displayed.

• After the test duration of 300 s, the device stops automatically. (Stand-

ardised test duration) If you press Stop to end the test early, the results

are displayed.

• The device indicates whether the test has passed or failed with the

speciﬁed parameters.

• Press the Print key to print the report or press the New key to start a

new test.

Viewing the report before printing.

• You can use the or key to scroll through the report.

• Switch on the TD 600 printer and place it close to the IR window.

• Press OK to start printing.

• Note: The report is not permanently stored unless you select "Save" on

the menu.

Chart:

• Press the MENU key and press the or key to select Chart from the

menu.

• Conﬁrm by pressing the key.

• You can print the chart by pressing the Print key on the TD 600.

• To return to the menu press the Menu or New key once.

• To start a new test, press the Menu key twice.

About the chart:

The bar chart shows the permitted leakage ﬂow rate for the airtightness classes, with the speciﬁed m² and the actual

test pressure. The test value appears as a red line.

Compliant airtightness classes are shown with green bars. Non-compliant classes are shown with red bars.

manual-LTEST-1082_EN-DE-FR-SE.indd 10 2012-03-28 12:32:39

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