I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

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please tell me how maintainence person shifted to good epc company/design company

0 Answers  

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What is the differace between Volumatric flow meter and Mass flow meter.

4 Answers   Reliance,

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What is the difference between ff transmitter and non ff transmitter

0 Answers   Samsung,

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how we can calibrate level transmiiter in field?

6 Answers  

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Draw block diagram BOILER COMBUSTION loop & Explain

1 Answers   Bajaj Hindusthan, Exxaro,

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HOW TO CHECK THERMOCOUPLE AND RTD & WHAT IS THE DIFFERENCE BETWEEN THERMOCOUPLE AND RTD

14 Answers  

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how to calibrate transmitter online (in running plant)please explain correct procedure

4 Answers   Sabic,

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I have observed in field instrumentation work... I remove the fuse of an analog transmitter then it shows 7.75 kg/sq cm (which is practically wrong value)in DCS and when put the fuse it shows 0 in dcs. Then cheach the field transmitter termination and found moister. clean that and then it shows 1.1 kg/ sq cm which is right value. Please describe the above phenomenon.

1 Answers  

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What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?

0 Answers  

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why we used for range in pnumatic 3-15 psi and current 4-20 ma?

11 Answers   Jindal,

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tell me the field & lab calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter, temperature transmitter, temperature indicator, flow indicator, level indicator, control valve, thermocouple, pressure indicator (digital & analogue),

0 Answers  

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