Answer / krishna reddy

Let me know first which make you have.

Instrument have min and max ranges on its name plate.
So wiht multimeter you can check 4-20ma of flow meter.It
must be 4 ma if flow is zero and 20ma if flow is max range.
supose your flow mete got 100L/hr.
for 4ma flow should be 0 L/hr
8ma - 25L/hr
12ma - 50L/hr
16ma - 75L/hr
20ma - 100L/hr

Like this you can check.

Answer / amit

U can do the cold test by checking the sensor.It has piezo
sensors in symetrical manner. U can check both piezo
sensor by checking the capacitance. If capacitance is
accordance with size means sensor is OK. same way u can
check temp and pressure sensor(by checking the resistance)
if it has.This way u can check the healthiness of the
sensor. If u want to check the response of sensor, u can
give little vibration to the sensor by hammering on it and
check the response on transmitter. U cannot directly check
the calibration for flow on field itself.

Answer / tuhin

@soumil: no hp and lp side exist in vortex flowmeter. Vortex
principle is different.

Answer / saumil

In this meter hp or lp any one side we isolate line valve and check zero if it is ok then meter is ok

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