How to do ma trim in massflow meter?
Answers were Sorted based on User's Feedback
There are thermal dispersion, coriolis, differential pressure multivariable and solids belt scale mass flowmeters from a variety of manufacturers.
Each device has a specific procedure for trimming the mA output, if that's what the output is (it could be digital or fieldbus protocol). The specific manufacturer provides instructions on trimming the mA output.
The decision is to whether one trims the output to a calibrated milliammeter or whether one does a 'loop calibration' in which the HMI value is trimmed to match the flow meter's output.
A positive means of flow shutoff, bubble tight valving, is necessary because thermal or pressure siphon flows as well as back flow leakage through a pump or 'leaky' valves can occur when the pump is turned off.
Carl Ellis
Measure First
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / senthil
carl ellis,
How to calculate the flow rate in Vortex flow meter?What is K factor?Can you give me an example calculation to understand the same as better?
Is This Answer Correct ? | 0 Yes | 0 No |
why thermocouple called thermocouple?
How will you test a transistor with a multimeter?
How to measure density of oil in your kitchen. i.e indirectly to verify the quality of oil using min. gadgets available in the kitchen/house.
Name and describe at least 4 status indicators, typically found on a PLC
tell me about the instrumentation,what is the actual need of it ?what are the characteristics of a IC engineer ?
Questions on flow meters,few questions on HART protocol,
What is full form of hart communicator?
what is the full formof HART
whey we conect ammeter in series and voltmeter in parallel in circuit
how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?
Close loop and open loop.
whyvibration probe (bently nevada ) is set -10 volt for zero reference?