The PIE 901 Wireless Diagnostic Loop Calibrator can be used at any access point in a 4 to 20mA DC loop for comprehensive testing and calibration. The calibrator can simultaneously power a 2-wire transmitter and measure its output, source and read up to 24.000mA, or simulate a 2-wire transmitter. It features LeakDetect technology for diagnosing ground faults and current leakage.

The 901 sources up to 24.000 VDC for calibrating voltage inputs and measures from -60.000 to +60.00 VDC to check loop power supplies and batteries without requiring a separate multimeter. Pressure modules may be connected via cable or wirelessly with future PIE Bluetooth pressure modules, extending its functionality to pressure calibration applications.

Values can be easily set to within 0.001mA or 0.001V using the adjustable digital potentiometer "DIAL" or by using preset LO 4.000mA (0.00%) and HI 20.000 mA (100.00%) EZ-CHECK settings. Any three mA or V output values may be stored for instant recall. The large color LCD includes a "DARK MODE" for calibrating in bright sunlight, which can be deactivated when used indoors.

The calibrator is designed to withstand rugged conditions with operating temperature range of -5°F to 140°F (-20°C to 60°C) and storage to 140°F. Isolation is 60V rms between all mA/voltage functions and pressure connections. The PIE 901 is calibrated on equipment traceable to NIST and includes a Certificate of Calibration. Models include the 901-BP (with rubber boot and NIST certificate) and 901 (with carrying case, test leads, and NIST certificate).