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(2)About the zero gas inlet
The zero gas inlets connector size is a PT1/4 female thread. A propylene male connector
is a standard accessory. The piping that matches is a
φ
6(0D)-
φ
4(1D) size Teflon tube.
Please choose a sampling point where fresh dry air can be drawn in.
CAUTION
・
Please make sure put on the inner and sleeve when installing, pay attention to avoid
gas leakage
・
Please do not choose a location as sampling point where interference gas may exist.
The zero adjustment will not operate successfully if interferences exist. It will cause
danger because the readings will degrade in case of a gas leak.
・
Water in zero gas (fresh air) may cause dew condensation. Please install appropriate
water removal equipment if the air is high humid. Exposure to water will cause
damage and false operation of the instrument.
(3) About the external dust filter
The provided dust filters must be mounted on the sample gas inlet and on the zero
gas inlets.
(4) About the tube material
There might be adsorptive or corrosive gas compounds in the sampled gas. Please be
ware of those gases in choosing the tube/pipe material. Take appropriate measures if
there is water vapour or other gas than the target gas in the sampling gas.
