Instrument installation Azbil Corporation
2-28 Model MTG11A/18A, MTG11B/18B, MTG14C
Flange shape
Use flanges that will maximize the area of contact with the gasket, as shown in Figure
2-25.
Figure 2-25 Flange shape
~Note • Before installing the detector, make sure any foreign matter is
flushed from the inside of the detector. Residual foreign matter could
cause output fluctuations.
• Do not touch the electrodes by your hand or wasted cloth with oil.
This could cause output fluctuations.
• Install the detector in accordance with the flow direction mark on the
detector in the direction of the liquid flow. Misalignment could result
in a negative output.
• Never attempt to force the detector between two flanges when the
space is too narrow. It can damage the detector
~Note Tighten each bolt a little at a time, apply uniform torque to all the bolts. If
leakage does not stop on completion of fastening, make sure that the pipe is
not off center, then continue to tighten each bolts little by little. Install the
detector carefully and ensure that the fastening torque does not exceed the
prescribed limit. Otherwise, the detector could be damaged.
Figure 2-26 Example of incorrect mounting
m WARNING
After ensuring that the internal diameter of the pipe and that of the detector are the
exactly the same, install the detector so that the gasket does not protrude into the
internal diameter of the pipe. Failing to do so could result in leakage or other
hazards.
Flange
Welding
Pipe
Acceptable
Unacceptable
(The liquid could
leak out because
of the small area
of contact with
the gasket.
CM2-MTG300-2001.book 28 ページ ２０１５年９月２９日 火曜日 午前１０時１４分
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