how can you set a zero and span of transmitter?
Answer / bunny
First give the LRV(Lower Range Value)to the transmitter.If
it is an electronic transmitter,the o/p should be 4mA.If it
is a pneumatic transmitter,the o/p should be 3psi.If we are
not getting the above values,adjust the zero screw in the
transmitter by a screw driver,till we are getting 4mA or
3psi.This is called zero adjustment.Simillarly give URV
(Upper Range Value) to the transmitter.So the output for
electronic and pneumatic transmitters should be 20mA and
15psi respectively.If we are not getting it,adjust the span
screw in the transmitter by a screw driver till we are
getting 20mA or 15psi.This is called span adjustment.
LRV & URV:Suppose the range of a transmiter is 0-30psi.Then
LRV=0psi & URV=30psi.
Is This Answer Correct ? | 23 Yes | 0 No |
Which buffer solution is used for PH transmitter calibration?
Reason for capillary type dp level transmitter fluctuation
installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,
difference between repeatability and reproductability
Explain Difference between Bech set and operating range of control valve
What is the difference between sdv and bdv ?
Foe selecting control valve if i have the min,normal & max data of flow rate,inlet pressure& outlet pressure,inlet tem.&density than how can i assure that these data are correct,pl. let me know if therew there is any method to check it.& also how we assure that the Cv we get from this data is suitable for valve for controlling require flow.
Difine flashing , Cavitaion & Noise? how to minimize these effects
What is the difference between pt100, pt500 and pt1000 RTDs?
control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?
If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR as accurate value?
how can i communicate with non-national instruments device with pc via labVIEW8.2
3 Answers Google, Mico, National Instruments,