Loop power supply for troubleshooting, calibration
The Loop Power Supply solution provides a safer alternative and saves users the time expended in troubleshooting their calibration setup. It is a filtered 24 V, 30 mA power source, which makes it ideal for 4–20 mA loop transmitters. All connection leads are part of the unit and a 250 ohm loop resistor is included internally which eliminates the need for extra test leads or alligator clips. The Loop Power Supply has a battery life greater than 6 hours at a 12 mA load and the batteries can be replaced with standard AAA alkaline batteries. Being battery powered eliminates galvanic isolation concerns. The unit is supplemented with an LED status indicator and is protected by a plastic enclosure.