PIE 901 Wireless Diagnostic Calibrator

The PIE 901 Wireless Diagnostic Calibrator is a modern, technician-friendly solution for calibrating and troubleshooting 4–20 mA current loops, voltage inputs, and pressure instruments. Designed for shop, bench, and field use, the PIE 901 combines precision calibration, ground leak detection, and wireless-ready pressure capability into one rugged handheld device.

With Bluetooth® support for future wireless pressure modules, a large color display, and intuitive “Easy as PIE” menus, the PIE 901 simplifies complex loop diagnostics while eliminating the need to carry multiple instruments.

Features and Performance

• 4–20 mA Loop Calibration & Diagnostics
  Source, simulate, and measure 0.000 to 24.000 mA, power 2-wire transmitters, or simulate transmitters directly in the loop.

• Voltage Calibration & Measurement
  Source up to 24 V DC and measure –60 V to +60 V DC, allowing safe verification of loop power supplies and batteries without a separate multimeter.

• Pressure Calibration Capability
  Supports optional wired pressure modules and future Bluetooth® wireless pressure modules, enabling flexible pressure calibration without extra cabling.

• Ground Leak Detection
  Identifies hidden current leakage caused by moisture, corrosion, or ground faults, displaying both controlled and uncontrolled current directly on screen.

• Wireless-Ready Architecture
  Built-in Bluetooth® functionality prepares the PIE 901 for next-generation wireless pressure modules, reducing setup time and clutter.

• Large Color LCD with Dark Mode
  High-contrast, color-coded menus simplify navigation. Dark Mode improves readability in bright sunlight and outdoor environments.

• Easy as PIE™ Interface
  Double-click menu system with color tabs makes setup fast and intuitive—even for first-time users.

• Rugged & Portable Design
  Built for industrial environments with protective rubber boot and hands-free carrying options.

Why You Should Buy It

• Combines mA, voltage, and pressure diagnostics in one tool

• Detects loop leakage issues before replacing transmitters

• Reduces tool count for commissioning and maintenance

• Wireless-ready for future pressure calibration needs

• Includes factory calibration and 3-year warranty

FAQ – PIE 901

Q: Can the PIE 901 power and measure 2-wire transmitters at the same time?
A: Yes. It can supply loop power while simultaneously measuring transmitter output.

Q: Does the PIE 901 support pressure calibration out of the box?
A: Pressure calibration requires optional pressure modules, which may be connected by cable or wirelessly (future Bluetooth modules).

Q: What is Ground Leak Detection used for?
A: It identifies uncontrolled current caused by ground faults, moisture, or corrosion that leads to zero-shift errors in loops.

Q: Is the PIE 901 suitable for field use?
A: Yes. It features a rugged design, bright color display, Dark Mode, and portable power options.