Answer / nitish katoch

no we can we can only calibrate measuring devices..its
calibration is only depend upon its design

Answer / velu

Actuator can be calibrated. for example Pneumatic Actuators
are used in control valves. we have to calibrate the
Actuator as per name plate depend on the actuator size and capacity(call us bench set) for proper opening
and closure of the valve.

Answer / vinoth.s

Actuator can be calibrated. for example Pneumatic Actuators
are used in control valves. we have to calibrate the
Actuator between 3-15psi pressure range, for proper opening
and closure of the valve.
there is nothing saying whether field
devices alone can be calibrated. All process control as well
as sensing devices should be calibrated periodically.

Answer / rezvanian

You cant calibrate an actuator, you can just do setting.(
setting means better performance and more accurate ).
But calibration is the process of measuring the actual
performance of an instrument-under-test using lab
instruments ( or we can do this in the field ) that in
turn have significantly better performance than the
instrument-under-test. The measured performance is then
compared to published data sheet specifications. If observe
the instrument to be out-of-specification, instrument must
adjust and re-test .( for example we can do calibration for
a thermocouple or pressure transmitter )

Answer / rcsp2689

Inprocess loop measuring Ends can be calibrated . ie., Sensors.. Where else Actuators are Final contol element / Output devices.

What is the basic difference between Modbus and CAN Open Protocols

0 Answers  

purpose of absolute ppressure transmitter applcation?

1 Answers  

How the flow can be measured by using DP Transmitter?

3 Answers  

What is linearity of RTD over 0 to 200 degC?

1 Answers   Honeywell,

types of cable..? Use of every types of cable..?

0 Answers   Hindustan Zinc,

Briefly describe instrumentation job

1 Answers  

Could anybody tell how much amps will a single input to plc will consume?

1 Answers  

Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plants instrumentation field , which one field is give long life & which one field is best ,I confused a lot And also I'm studying AMIE, can I choose which field from Section B examination?

1 Answers  

If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used?

2 Answers  

Could anybody pls give ans of boiler 3 element control system?

5 Answers   Qatar Petroleums,

you are on site,the plant trips,you are approached by operations,what do you do?

0 Answers   ABB,

Where is wet leg is used?

0 Answers