Installation Examples - COMAC CAL FLOW 32 Installation And Technical Conditions

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Table Of Contents

Table of Contents

For correct operation of the meter, the flow sensor should be constantly flooded with the

measured fluid to avoid erroneous readout of the amount of the fluid supplied in case that the

piping is empty. It is necessary to select the location of the meter in such a way that the flow

sensor aeration can be avoided. In the case of an open system, the flow sensor is placed in the

bottom position of the U-profile pipework, ensuring that the fluid will not flow out of the

sensor.

Trouble-free and exact operation of the meter is dependent on its correct location in the

system. The most frequent methods of the placement are shown in the following figures:

Recommended installation locations

bubbles are accumulated in the

pipeline; erroneous measurement

Correct

location

Horizontally laid pipeline

Place the sensor in a slightly

ascending pipeline

Free inlet or outlet

Build in the U-shaped pipeline

The flow of liquid flow in the flow sensor should be steady and free of whirling. For this

reason, straight sections of pipeline with the same ID as that of the flow meter before and

after the flow sensor (with permissible deviation of +5%). Recommended minimum length of

straight sections is 5d before the flow sensor and 3d after the flow sensor where d is the

inside diameter of the meter in millimetres. The same principles apply before and after the

flow sensor in case of bi-directional flow measurement.

FLOW 32 manual