Head
101
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GA10218_0101 - 5/2002
9.3.1 Tecnical Data
9.3.2 Factory Inspection
Calibrated leaks are not subject to wear and the Helium loss of the cali-
brated leak TL7, being less than 2 % per year, is negligible. Nevertheless,
the leak rate may change over years due to external influences. A factory
inspection is, therefore, advisable once a year.
A test certificate, if required for the Helium calibrated leak, can be obtai-
ned from our Cologne Works. In that case, the calibrated leak should be
forwarded to us and will be returned inspected and recertified with the
test certificate against charge.
The helium flow stated on the main label is the actual leak rate of the cali-
brated leak.
Nominal calibration range
10
-7
mbarl / s
Tolerance of nominal calibration range +/- 15 %
Temperature coefficient < 0,5 % / °C
Leak type Kapillare
Filling Helium
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