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Instruction Manual
CVG101 Worker Bee
Installation
3
Mount the CVG101 as close as possible to the pressure
you want to measure. Long or restricted, small
diameter tubing will create a pressure difference
between your process chamber and the gauge. This
Mount
may cause a delay in response to pressure changes.
gauge with
Mounting the CVG101 too close to a gas source inlet
this axis
may also cause measurement and control instability.
horizontal
Do not mount the CVG101 near a source of heating or
cooling, such as heaters or air conditioning vents.
Mount the CVG101 with its main (long) axis horizontal
(see diagram at right). The CVG101 is calibrated in this
orientation. Pressure reading errors may occur above 1
Torr if the unit is not mounted horizontally. Below 1 Torr, mounting position has little to no effect.
Mount the CVG101 with port down, if possible, to help minimize the effect of any particles or condensation from
collecting in the gauge.
Do not mount the CVG101 where it will be subjected to excessive vibration. Vibrations may cause unstable
readings, measurement errors and possible mechanical stress to components in the CVG101.
Flanges/ Fittings - follow the manufacturer's recommendations and note the following:
- NPT fittings: When connecting the device using a NPT fitting, apply a thread sealant compound or wrap the
threaded portion of the tubing with one-and-a-half to two wraps of pipe thread seal tape such as PTFE (Teflon®)
tape and hand tighten the gauge into the gauge port. Do not use a wrench or other tool which may damage the
gauge.
InstruTech, Inc.
Page 6
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