PIE 901 Operating Instructions Manual

PIE 901 Operating Instructions Manual

Diagnostic calibrator

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• 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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Summary of Contents for PIE 901

  • Page 1 • 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.
  • Page 2: Basic Operation

    USB-C AC Adaptor or portable power pack which will eliminate the drain on your “AA” batteries. This is handy for jobs that require extended bench or field use of the PIE 901. EZ-CHECK™ Switch When used with the 9V USB-C AC Adaptor (PIE Instantly output 4.000 mA or 20.000 mA (or output of...
  • Page 3 Turn the knob to scroll GROUND LEAK DETECTION - when ON the thru the menus and press the knob to select. PIE 901 has the ability to check for current leaks Available choices are shown in grey. caused by ground faults, moisture or corrosion.
  • Page 4 Available Display Types (Module Dependant) GAUGE (Default), BARO, ABS (Barometric & Absolute are not available on the PIE/Meriam Pressure Modules) Easy to Read Color Display Full color display is easy to read in Turn on DARK MODE (high contrast most situations. Red color highlights...
  • Page 5 Operating Instructions Double Click Menu - FEATURES To change the Feature Settings EXIT MENU - exits this menu immediately and saves any changes. Menu will automatically exit Turn the DIAL KNOB to move to the second, third or fourth menu tab so the word FEATURES after 15 seconds of inactivity.
  • Page 6 % and whether you need the 250Ω HART Transmitter resistor active in the loop. Computer 20.000 Logger Connect the output leads of the PIE 901 to the inputs of the device being calibrated, making sure to check polarity. Red lead to the plus (+) SOURCE READ READ input and black lead to the minus (-) input.
  • Page 7: Simulate 2-Wire Transmitters

    STEPPING or RAMPING will flash on the display anytime the selected automatic function is running. The PIE 901 will automatically step or ramp between 4 mA & 20 mA (or 20 mA & 4 mA) for 5 to 60 (selectable) seconds then reverse direction. Stop the stepping or ramping by pressing or turning the knob or moving any switch.
  • Page 8 “OVERRANGE” flashed on the display. The PIE 901 measures the input signal and constantly updates the display with the current reading. Move the EZ-CHECK switch to MAX to see the highest reading and to MIN to see the lowest reading.
  • Page 9: Using Ground Leak Detection

    (-) to the minus (-). The PIE 901 supplies a nominal 24 volts DC at 24 mA to the 2 Wire Transmitter or loop. The current passed by the transmitter will be accurately displayed by the 901 along with an indication of leakage current at the top of the display.
  • Page 10 Select V for the FUNCTION. Connect the red input lead (+) of the PIE 901 to the more positive point of the break and the black input to the more negative point.
  • Page 11 Read Pressure with a PIE or PIE/Meriam Pressure Module Choose this function to measure pressure in one of 32 different engineering units using a PIE (more models will be available) or PIE/Meriam Pressure Module along with optional converter cable for connection to a PIE/Meriam Module (Part # 020-0241).
  • Page 12 1) Turn the PIE 50 Series Pressure Module on 2) Move the power switch of the Model 901 w to READ then Double Click the EZ-DIAL knob to get into the Menu. Turn the knob to scroll through the settings and press the knob to make your selec- tion.
  • Page 13 ZERO appears in the top half of the display. Connect the wires from the Model 901 to the input and the pressure module to the output of the I/P converter. Adjust the mA setting using the EZ-CHECK switch and the knob to control the 4-20 input to the I/P converter and monitor the I/P output pressure on the Model 901 display.
  • Page 14 Pressure to Current Calibration Calibrating Pressure Transmitters The Model 901 can simultaneously monitor a pressure while measuring the output current from a Pressure Transmitter with or without an external power supply in the loop. Follow the setting for Wired Pressure Modules (Page 11) or Wireless Pressure Modules (Page 12) to configure the pressure module then EXIT the menu.
  • Page 15 SETTING UP VALVES When setting up a valve it is important to correctly set the end stops. Use the PIE 901 to supply the 4 to 20 mA control signal to stroke the valve. Select “SOURCE mA” and the PIE 901 will use the internal power source for outputting current or switch to 2-WIRE SIMULATOR to stroke a valve using any pre-existing installed loop power supply as the power source.
  • Page 16 The following screen will appear when the batteries are first installed or replaced and either the 901 is turned on or the charger is plugged in. You may wait for the message to disappear or hold down the knob to exit the window.
  • Page 17: Application Notes

    Select READ “mA” or “% 4 to 20mA” . Place the calibrated correctly but all the readings PIE 901 in the loop in series with the current to elsewhere in the loop have a fixed offset this is be measured.
  • Page 18 PIE 901 Specifications (Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration) General Operating Temperature Range -20 to 60 °C (-5 to 140 °F) Storage Temperature Range -30 to 60 °C (-22 to 140 °F) Temperature effect ≤...
  • Page 19 PIE 901 Specifications (Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration) Source mA/Power & Measure Two Wire Transmitters Ranges and Resolution 0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA Accuracy ≤...
  • Page 20: Warranty

    The equipment will be repaired, replaced or adjusted at our option. The liability of Practical Instrument Electronics (PIE) is restricted to that given under our warranty. No responsibility is accepted for damage, loss or other expense incurred through sale or use of our equipment.

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