30
5-7. Mounting attitude
When the meter body is incorporated with a vent provision, install it in such attitude so that
the vent is not obstructed. Entrapped drainage or other foreign matter remaining in the meter
body will adversely affect measurement.
It is ideal to install the meter body so that its diaphragm or bellows planes are made vertical.
After installation is finished, perform ZERO adjustment.*
Note) * Refer to the section for calibration.
When a diaphragm pressure receiver type of meter body (models 61/62, 71/72) is used for
liquid level measurement, the zero point will be as shown in Fig. 5-5. Calculate the output
referring to the dimensions and calibrate the instrument accordingly.
H
OUTPUT
100%
0%
25mm
100%
90mm
Fig. 5-5. Zero point of diaphragm
Note) For the portion from the minimum liquid level (0% level) to a height of 25 mm, the output is not
linearly proportional to the liquid level.
