Lindab LTEST - 1. Description; Pressure Measurement Details; Flow Rate Measurement Details; Adapter Measuring Range

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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
in
EUROVENT 2/2
Airtightness class
in
DIN 24194 Part 2
Limit value for
leakage flow rate (f
max
)
m³ s
-1
m
-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)
manual-LTEST-1082_EN-DE-FR-SE.indd 4 2012-03-28 12:32:36