Installation Of Za8F Flow Setting Unit - YOKOGAWA ZR402G User Manual

(3) Mount the detector so that the calibration gas inlet and the reference gas inlet face
downward.
Figure 3.6
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.
Mounting of ZA8F Flow Setting Unit
n
The flow 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 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.
Figure 3.7
Installation of the dust filter
F3401E.ai
Pipe Mounting
<3. Installation>
Unit : mm Unit : mm
Reference gas inlet
Calibration gas inlet
F3-2E.ai F3-2E.ai
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
3-5