45
(4) Fix the clamping-bolts of the covers with the specified tightening torque as given in the
following table.
Table 7-1:
Model
Tightening torque (kgf•cm)
Material of clamping-bolts
When new
gasket is used
when gasket is
re-used
Bolt
Cover
11/22, 61/62
450
300
Chrome
molybdenum steel Carbon steel, SUS
33
450
300
44
400
81/82
1400
7-2-3. Notes for use in freezing weather
When the transmitter used for the measurement of water or of any other liquid which is apt
to freeze is paused in freezing weather or in a freezing area, loosen the drain plugs and drain
out liquid from the pressure chambers to prevent the liquid from freezing and damaging the
instrument.
