PIE 525Plus Diagnostic TC, RTD and mA Calibrator

Overview

The PIE 525Plus is a 3-in-1 thermocouple, RTD, and full-function diagnostic milliamp calibrator. Source and read 0.000 to 24.000 mA, simulate two-wire transmitters, power and measure with 24 V, use the built-in 250 Ω HART resistor, and find hidden wiring faults with patented Ground Leak Detection.

Temperature side covers 14 thermocouple types and 12 RTD types to 0.01° resolution, with ±(0.008% of reading + 0.006 mV) T/C accuracy, ±0.05 °C cold-junction compensation, and ±(0.015% of reading + 0.05 Ω) RTD/ohms accuracy. Automatic wire detection helps troubleshoot RTD sensors; capable of AMS 2750 Field Test Instrument use when certified by an accredited lab.

Palm-sized for field work with rubber boot and deluxe carrying case features called out on the datasheet. Made in the USA with NIST-traceable calibration.

Features (PIE)

• Three calibrators in one: a 12-type RTD calibrator, a 14-type thermocouple calibrator and a milliamp calibrator. Source and read 0.000 to 24.000 mA, or simulate a 2-wire transmitter.
• Stand-alone transmitter calibration: supply the RTD or thermocouple input, power the transmitter with 24 V and read its mA output at the same time. A built-in 250 Ω resistor simplifies HART communicator hookups.
• Loop diagnostics: patented ground-fault and current-leak detection (US Patent 7,248,058).
• RTDs: Pt 10, 50, 100, 200, 500 and 1000 Ω (α 3850), Pt 100 Ω (α 3902, 3916, 3926), Cu 10 and 50 Ω, Ni 120 Ω, or 0.000 to 400.000 and 0.00 to 4000.00 Ω. It also displays excitation current.
• Thermocouples: J, K, T, E, R, S, B, N, G, C, D, L (J DIN), U (T DIN) and P (Platinel). The cold-junction thermistor is accurate to ±0.05 °C and traceable to NIST.
• Thermocouple health check: measures the resistance of the cable and sensing element, and shows "OPEN TC" with the resistance value for open or failing probes.
• Heat treating: PIE states the 525Plus can meet the requirements of an AMS 2750 field test instrument when certified by an accredited laboratory.
• Automatic stepping: 2, 3, 5, 11 or 21 steps (100% down to 5% of span), with step times from 5 to 60 seconds.

Optional accessories (PIE part numbers)

• Magnet hanging strap (020-0236)
• Thermocouple wire kits: J, K, T and E (020-0202); B, R/S and N (020-0203)

These are on our PIE calibrator accessories page.

Documentation (PIE)

PIE publishes a datasheet, operating instructions and field calibration procedures for the 525Plus.

Browse all process calibrators.

Specifications

Documents

• datasheetPIE 525Plus Diagnostic TC, RTD and mA Calibrator Datasheet

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