YOKOGAWA ZR402G

<3. Installation>
3-5
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
(3) Mount the detector so that the calibration gas inlet and the reference gas inlet face
downward.
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Unit : mm
Reference gas inlet
Calibration gas inlet
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Unit : mm
Figure 3.6 Installation of the dust lter
3.2 Installation of ZA8F Flow Setting Unit
The following should be taken into consideration:
(1) Easy access to the unit for checking and maintenance work.
(2) Near to the detector and the converter
(3) No corrosive gas.
(4) An ambient temperature of not more than 55°C and little changes of temperature.
(5) No vibration.
(6) Little exposure to rays of the sun or rain.
n Mounting of ZA8F Flow Setting Unit
The ow setting unit can be mounted either on a pipe (nominal JIS 50 A) or on a wall. It should be
positioned vertically so that the owmeter works correctly.
<Pipe Mounting>
(1) Prepare a vertical pipe of sufcient strength (nominal JIS 50A: O.D. 60.5 mm) for mounting
the ow setting unit. (The unit weighs approximately 2 to 3.5 kg.)
(2) Mount the ow setting unit on the pipe by tightening the nuts with the U-bolt so that the metal
tting is rmly attached to the pipe.
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Figure 3.7 Pipe Mounting