Signal Isolator is an instrument optically isolates the input side of the process connection from the output. Signal Isolator can be convert single 4-20 mA or 0-10 VDC to single, dual, or triple outputs. ESD has many options in Signal Isolator category.

How does a Signal Isolator work?
Signal Isolator uses a digital circuitry along with best-in-class optical isolator and isloation transformer. The advantage of Signal Isolator is that it eliminates the noise element, ground loops present in process connection/wiring and gives an isolated output which can be used to feed as input to PLC, SCADA etc. The most common inputs to Signal Isolator are 4-20 mA, 0-10 VDC. ESD make Signal Isolator are known for its relability, repeatablitiy, robust and proven field performance over the years.

Temperature Transmitter is an instrument which reads the field mounted sensor and converts it to 4-20 mA or 0-10 VDC for transmitting it over two wires to Indicator, Controller, PLC or any other process instrument.

How does a Temperature Transmitter work?
Temperature Transmitter uses a analog circuitry along with best-in-class operational amplifiers to read the sensor readings. Temperature Transmitter is generally powered by 24 VDC or 230 VAC. The advantage of Temperature Transmitter is that it eliminates losses, voltage drops and transmits the signal to a longer length from the field to the Control Room or Control Panel where PLC or SCADA etc. is situated. ESD make Temperature Transmitter are known for its relability, repeatablitiy, robust and proven field performance over the years.