Instrumentation and Control Formulas

Instrument Percent of Span Error

An important part of performing instrument calibration is determining the extent of an instrument’s error. Error is usually measured in

Generally it is possible to generate a “custom” linear equation in the form of y = mx + b for any linear

A current-to-pressure transducer is used to convert a 4-20 mA electronic signal into a 3-15 PSI pneumatic signal. This particular

Every instrument has at least one input and at least one output. For instruments responding linearly, the correspondence between input

4-20 mA transmitter current output can be converted to the voltage within a specified range, from 0 to a maximal amplitude Vmax,

For any unit conversion on any PLC, you can use four function math with the following for PLC Analog Input

Troubleshooting PLCs can be started by checking the healthiness status of CPU, I/O Modules, Fuse Blow-out and different PLC Failure

An Allen-Bradley SLC500 programmable logic controller (PLC) uses a 16-bit analog-to-digital converter ( in its model 1746-NI4 ) in analog

We need to convert sensor raw counts to engineering units in a PLC system. Convert Raw Counts to Engineering Units

A digital turbine flowmeter generates 10 pulses per gallon of liquid passing through it. Determine the meter coefficient and calculate