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Transmitters convert the sensor output to a standard industrial (4 to 20) mA transmission signal.
The temperature range can be set by simulating a temperature at the low and high end of scale required, and pushing the button to output 4mA at the low end, and 20 mA at the high end. The advantage of this method is that you do not need to connect the product to a computer to carry out this function.
Alternatively, transmitters are available with USB interface to easily programme the sensor type, range and error signal using a laptop or PC. The user adjust function can be locked during configuration if not required. The state LED indicates out of range input during normal operation.