INFICON T-Guard Leak Detection Sensor - Manual (Page 9)

Safety
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2 Safety
2.1 Intended use
The T-Guard™ Leak Detection Sensor is a helium leak detection sensor which does
not need any vacuum chamber. It can find leaks in test samples and quantify them
when they are filled with helium under pressure.
Using the T-Guard™ Leak Detection Sensor, the chamber with the test sample does
not have to be evacuated.
Measured at atmospheric pressure, the minimum detectable leak rate is 1×10
-6
mbar
l/s. This depends on the chamber volume and the measuring time, the rejection leak
rate will mostly be between 1·10
-4
and 1·10
-2
mbar l/s.
Do not let water penetrate into the body or hoses of the T-Guard™ Leak Detection
Sensor. Do not forget to use the external filters.
Only use accessories and spare parts from INFICON.
2.2 Requirements to be fulfilled by the user
Get used to the functioning of the device. You may only use the device after reading
and understanding the manual.
2.3 Restrictions of use
Disregarding the following precautions could result in serious injury:
Skilled personnel
The T-Guard™ Leak Detection Sensor must only be started and operated by
properly trained staff.
Warning
For all contacts of the I/O port, a maximum voltage of 60 V DC or 25 V AC must not
be exceeded or reached based on the protective conductor or the earthing devices.
Please refer to the information given in the following chapters.
Warning
For maintenance work, disconnect the T-Guard™ Leak Detection Sensor from the
power supply.