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6. Installation and Wiring
For detection of adsorptive gas (e.g. HF and F2), remove the filter element (FE-1) from
the filter unit (MF-50). Correct detection is not possible if the filter element is present.
Refer to 9-1.
“Filter Element Replacement”.
Tubing should be Teflon,
φ
6/4, and less than 20m in length. For adsorptive gases
(e.g. HF, F2, HCl, Cl2, NH3), the tube length should be less than 5m.
Set the main unit power switch (located on the front of the base unit) to the OFF
position before installing/removing the main unit. Installation/removal while the main
unit power switch is in the ON position may cause a false alarm or device failure.
Install the gas detector in a place free from impact and vibration.
Do not install in the vicinity of equipment which can generate high frequencies or a
magnetic field.
Do not use a gas collector in a confined space (e.g. inside a duct).
Do not install the gas detector in a high temperature (higher than 40ºC) and
condensation-prone area. Avoid sudden temperature changes.
This product is not drip-proof equipment and should be kept away from splashing
water.
Do not block the cooling vents on both sides of the base unit.
The pressure differential between the gas inlet/outlet and the outside air pressure
(atmospheric pressure) should be within
1kPa. In addition, the pressure differential
between the gas inlet and the gas outlet should be within 1kPa, with negative
pressure applied to the gas inlet. Using the detector under overpressure will cause an
excess flow, which may result in flow rate error or incorrect measurement.
This unit is precision equipment. Stress or impact to the base unit should be avoided.
Install the gas detector vertically with its gas inlet and outlet facing down.
Determine the height for the tip of sampling tube by considering the specific gravity of
the target gas, and install the gas detector where gas is expected accumulate.
Gas type
Installing height
Gas heavier than air
Maximum of 30 cm above the floor
Gas near the specific gravity as air
75 to 150 cm above the floor
Gas lighter than air
Near the ceiling
This product is not explosion-proof equipment and should not be installed in a
hazardous area.
