Control Valve Position Command Signal
Looking for a device that generate control valve position signal for open loop control
controlling flow between two vessels
Control the level in a vessel while the other is transferring to the store tank, ensuring that only the desired is transferring while the other is being filled
Need a steam flow switch for MP Extration
Remote Access Via Cell Network
Posted by Roy Matson on 22 March, 2012 - 5:41 am
How can I access a PLC network via cell?
Pressure transmitter installation question
PIT installation question
measurement of water level
Wanted: Simple and Inexpensive Automated Pump Control System Solution
Looking for a simple and inexpensive pump control system to automatically fill water tank. No power source at the tank. Pump is 700 meters from tank.
Explain the Working principle for Displacer type and Float type level transmitters.
Understanding Absolute Pressure
Trying to figure out how to calibrate this absolute pressure transmitter.
Flow Transmitter calibration
Flow transmitter Recalibration on-line
how to adjust the linearity error if provided
1-3vdc analog input to 4-20ma
Posted by Bobby Gauthier on 8 November, 2011 - 2:30 pm
I need to know how to convert a 1-3vdc input to a 4-20ma. input
Software to measure flow/velocity of overflow from weir
Software to measure flow/velocity overflow from a weir using a fixed camera
1 mile long 4-20mA current loop bounces.
Rangeability of smart flow transmitter
Whether we can get better rangeability by using re-ranging feature of smart transmitter?
DCS controller configuration
Distributed CPUs or only distributed I/Os
Questions on orifice Plate
What circuit does a typical PLC use for its 4-20mA current source output (internal to the PLC)?
PT + SS tube installation in high temperature condition
Level switch for furnance oil application
What type of level switch (high level) is most commonly used for furnace oil application in a tank of approx. 5M length and 4 M dia.?
High temperature pH measurement
Finding probes to measure pH directly from 145c process flow
V-cone flow meter for large pipes
Application of V-cone flow meters for flow measurements in large diameter pipes
can anyone explain what and how volt free contacts work?
Level Measurement in a power plant
Please suggest where exactly in a power plant are the following technologies used: RF Capacitance DP level measurement Ultrasonic Floats & Displacers Conductivity type level
Linear displacement sensor
I need help finding an adequate sensor
Why use AC @ 400Hz in aircraft?
Problem being faced in measurement of level of a tank under vacuum
Using a DP type transmitter to measure level of liquid in a tank under vacuum pressure.
What is use of barrier & isolator in automation system and where they should be used?
Help finding motor for actuator 12v
The motor is shot and I would like to find a replacement...
Difference Power Cables and Signal Cables
Please tell me the exact difference between Power Cables and Signal Cables used for Instrumentation Field Applications.