Owner's manual

<11.Inspection and Maintenance>
11-10
IM 11M12A01-04E
11.3 Replacement of Flowmeter for ZR20H Automatic
Calibration Unit
(1) Remove pipe holding piping tting
(2) Remove bolts holding owmeter, and replace it. A white back plate (to make the oat 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 x 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