YOKOGAWA ZR22S, User Manual

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<3. Installation>
3-14
IM 11M13A01-02E
3.4 Installation of ZA8F Flow Setting Unit
3.4.1 Installation Location
The following should be taken into consideration:
(1) Easy access to the unit for checking and maintenance work.
(2) Near to the detector or 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.
3.4.2 Mounting of ZA8F Flow Setting Unit
The flow setting unit can be mounted either on a pipe (nominal JIS 50A) or on a wall. It should be
positioned vertically so that the flowmeter works correctly.
<Pipe Mounting>
(1) Prepare a vertical pipe of sufficient strength (nominal JIS 50A: O.D. 60.5 mm) for mounting
the flow setting unit. (The unit weighs approximately 2 to 3.5 kg.)
(2) Mount the flow setting unit on the pipe by tightening the nuts with the U-bolt so that the metal
fitting is firmly attached to the pipe.
F03-13E.ai
Figure 3.15 Pipe Mounting
<Wall Mounting>
(1) Make a hole in the wall as illustrated in Figure 3.16.
(2) Mount the flow setting unit. Remove the pipe mounting parts from the mount fittings of the
flow setting unit and attach the unit securely on the wall with four screws.
223
140
F03-14E.ai
4 - Ø6.5 hole, or M5 screw
Unit : mm
F03-15E.ai
Figure 3.16 Mounting holes Figure 3.17 Wall mounting