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

How to isolate a DPT from line in the condition that process must not be disturbed,and process is also critical and no bypass is available.?

4 Answers   Descon,

---

what is thermo coupler and how it works

2 Answers   Tisco,

---

what is the difference between 3,4 wire RTD sensor?

6 Answers   HTA Instrumentation,

---

how can i communicate with non-national instruments device with pc via labVIEW8.2

3 Answers   Google, Mico, National Instruments,

---

Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks

0 Answers  

---

i want to Measure the Difference pressure of Packed distillation Column of height 3 mtr. h.p. side connected to bottom & L.P. side connected to the top , so tell me what will be THE URV & LRV of that D.P. transmitter?

5 Answers  

---

what is mean by live zero and dead zero

3 Answers  

---

What is Cavitation?

2 Answers   Gujarat Borosil,

---

HOW CREATED LP & HP PRESURES IN DRUM FOR DRUM LEVEL MEASUREMENT!

0 Answers  

---

what is the difference between dcs & plc

2 Answers  

---

can u please tell me the different types of valve uses and wt purposes it is used ~!(controlling the flow other than that which valve should be used in what place)

2 Answers  

---

Describe how to calibrate various types of instruments and transmitters using ISA industrial consensus standard techniques.

4 Answers   Reliance,

---