Time Electronics manufacture a selection of process instruments that are used to maintain, troubleshoot and calibrate 4 to 20 mA loops. We have portable models that are commonly used in field testing applications to measure current, power devices in a loop, and perform transmitter simulation. They are also used to test instrumentation such as recorders and indicators. 

For laboratory calibration our multifunction calibrators and multimeters are used for high accuracy current sourcing and measurement. Benchtop models like the 5025 are used to calibrate mA measuring test instruments and test tools such as multimeters. Our benchtop multimeters are used to test and verify process loop calibrators that output and simulate current signals.