• Avante Global Services

Loop calibrator

Avante Global Services offers Fluke loop calibrators, models 705 and 715, for calibrating controlled industrial processes. In controlled industrial processes, the process variables such as temperature or pressure are converted into a current signal. A key component in a controlled industrial process is the instrumentation transmitter, which converts the process variable into a linear signal. A computer, control device or valve then uses this, to adjust the process variable as required. The linear signal is typically a 4 to 20 mA current loop comprising of three parts: a loop power supply, a controller and a variable resistance created by the instrumentation transmitter. Calibration ensures that the loop current represents the process variable accurately. And because measurement instruments are all influenced by time, temperature, humidity, wear, environmental exposure and even abuse, periodic calibration is essential. Fluke loop calibrators can source a known value of current and simulate load resistance. The 705 and 715 can supply loop power as well.