• Easy to Use
With the PIE 901 you can check, calibrate and measure all your current signal 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. The standard
model includes 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
PIE 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, 5 or 11 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.
Practical Instrument Electronics
Tel: 585.872.9350 • sales@piecal.com • www.piecal.com
Copyright © 2024 All rights reserved • 901-9002 - Rev B 6 Feb 2024
PIE 901
PIE 901
Diagnostic Calibrator
Diagnostic Calibrator
4-20 mA • V • Pressure
4-20 mA • V • Pressure
Operating Instructions
Operating Instructions
Page 1
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