Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 170)

<11. Inspection and Maintenance>
11-10
IM 11M12A01-02E
11.3 Replacing Flowmeter in ZR40H Automatic
Calibration Unit
(1) Remove piping and wiring, and remove the ZR40H from the 2B pipe or wall mounting.
(2) Remove four M6 bolts between brackets.
(3) Remove piping extension
(4) Remove bolts holding flowmeter, and replace it. A white back plate (to make the float easy
to see) is attached. The end of the pin holding down the back plate must be on the bracket
side.
(5) Replace piping, and fix M6 bolts between brackets. *1
*1 : When disassembling and reassembling, mark original positions, and tighten an extra 5-10° when reassembling.
After tightening, do a liquid leakage test.
COM ON S N Z RO
F11.8E.ai
Bolt fixes bracket
Flowmeter with back plate
Connecter
Fig. 11.8 Flowmeter replacement
F11.9E.ai
A
A'
B
B'
C
C'
D
D'
Two screws fix flowmeter
Connect piping pairs A-A', B-B', C-C', D-D'
Fig. 11.9 Fixing Flowmeter
8th Edition : Jan.13,2012-00