Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 139)

<11.Inspection and Maintenance>
11-10
IM 11M12A01-04E
11.3 Replacement of Flowmeter for ZR20H Automatic
Calibration Unit
(1) Remove pipe holding piping fitting
(2) 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.
(3) 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.
Vertical mounting
Horizontal mounting
C
C
B
B
C' B' A'
A
A
Zr20h_g0.ai
Connect piping pairs A-A9, B-B9, C-C9, D-D9
Fixing screw pairs
Figure 11.9 Fixing Flowmeter