Ion Science GasCheck IS - Manual (Page 20)

GASCHECK 3000 & 3000IS MANUAL Ion Science Ltd
Page 20 of 28 Unrivalled Detection. www.ionscience.com
Operation
Leak detection at pipe joints
Use the same procedure as for leak detection along seams (see Section 4.6.2), however, move the probe (or
nozzle) around the joint at approximately half the speed specified in Section 4.6.2. Light gases (such as
hydrogen and helium) diffuse quickly into air, so an apparent leak on the side or top of a joint may actually be
a leak at the bottom of the joint.
Switch off the GasCheck
When the GasCheck 3000 has been left for a few seconds without any key press, then press the I/O key.
The GasCheck will ignore I/O presses during the instrument power up sequence and during any zeroing.
Auto Shut Off
If the GasCheck is left for a period of approximately 10 minutes without key presses it will shut itself off.