With the PIE 901 you can check, calibrate and measure all your current, voltage and pressure instruments in a 4 to 20 milliamp DC loop. It can be used at any access point in your loop. Source & Read to 24.000 mA, Simulate a 2 Wire Transmitter or use the PIE 901 to simultaneously power your 2 Wire Transmitter and measure its output. Source up to 24.000 V DC to calibrate voltage inputs.

Measure from -60.000 to +60.00 V DC to check loop power supplies & batteries without carrying a separate multimeter. Pressure modules may be connected via a cable or wirelessly with future PIE Bluetooth pressure modules. Rugged design with bright, color display for use in the shop, field, or on the bench. Optional rechargeable “AA” batteries and AC adapter for charging or for bench use.

Troubleshoot Loop Problems

Quickly diagnose ground fault and current leakage with the patented loop diagnostic technology (US Patent# 7,248,058).

Calibrate I/P, P/I & other Pressure Instruments

Compact design for easy carrying & connection directly to hand pump or process. Use a cable for long term pressure tests on the bench or with future wireless pressure modules.

Calibrate Milliamp & Voltage Receivers

Calibrate recorders, digital indicators, stroke valves or any instruments that get their input from a 4 to 20 mA loop or voltage devices. Easily set any value quickly to within 0.001 mA or 0.001 V with the adjustable digital potentiometer “DIAL” or use preset LO 4.000 mA (0.00%) and HI 20.000 mA (100.00%) EZ-CHECK™ settings. Store any three mA or V output values for instant recall.

Calibrate quickly with automatic output stepping

Press & hold the dial to automatically step from 4 to 20 in 2, 3 or 5 steps or choose a continuous ramp.

Calibrate using Loop Power

Check loop wiring and receivers by using the PIE 901 in place of a 2 Wire transmitter with any loop power from 3 to 60 V DC.

Measure Milliamp Control Signals

Check controller outputs or measure the milliamp signal anywhere in the loop. Measure 0.000 to 24.000 mA (-25.00 to 125.00%) signals with greater accuracy than a typical multimeter. 

Calibrate 2 Wire Transmitters with Built-In power supply

The PIE 901 can simultaneously output 24V DC to power any and all devices in a process loop using the internal batteries and internal switching power supply, while measuring the output of a 2 Wire Transmitter and any other loop devices. Powers HART™ transmitters with built-in 250 ohm resistor simplifying hookups with HART communicators.