Fluke 725 Multifunction Process Calibrator

The Fluke 725 Multifunction Process Calibrator is a portable field instrument that measures and sources electrical and physical parameters for process instrumentation calibration, maintenance, and troubleshooting. Its split-screen display enables simultaneous viewing of measured and sourced values, streamlining calibration workflows across process plants, oil and gas, power generation, and manufacturing environments.

Technical Specifications

• Measure: up to 30.000 V (accuracy 0.02% + 2 counts)


• Source: 10.000 V (accuracy 0.02% + 2 counts)


• mV range: −10.00 mV to 75.00 mV via TC connector (accuracy 0.025% + 1 count) Current (mA)


• Measure, Source, and Simulate: 24.000 mA (accuracy 0.02% + 2 counts) Resistance (Ohms)


• Measure and Source range: 15 to 3200 Ω


• Measure accuracy (0.0–400.0 Ω): 0.1 Ω (4-wire), 0.15 Ω (2- and 3-wire)


• Measure accuracy (401–1500 Ω): 0.5 Ω (4-wire), 1 Ω (2- and 3-wire)


• Measure accuracy (1500–3200 Ω): 1 Ω (4-wire), 1.5 Ω (2- and 3-wire)


• Source accuracy: 0.15 Ω (15.0–400.0 Ω at 0.15–0.5 mA excitation), 0.1 Ω (0.5–2 mA excitation); 0.5 Ω (401–1500 Ω at 0.05–0.8 mA); 1 Ω (1500–3200 Ω at 0.05–0.4 mA); 1% base accuracy Temperature


• RTD types: Ni120, Pt100 (385, 393, JIS)


• Thermocouple types: J, K, T, E, R, S, B, L, U, N


• TC measure accuracy: 0.2°C cold junction uncertainty; individual type accuracy 0.1°C to 1.4°C depending on type


• RTD measure accuracy: 0.1°C to 0.33°C depending on type


• RTD source accuracy: 0.2°C to 0.33°C depending on type


• Temperature coefficient: ±0.005% of range per °C

Key Features

• Split-screen display for simultaneous measurement and sourcing readout


• Compact, portable design for field deployment


• 4-wire, 2-wire, and 3-wire resistance measurement modes


• Thermocouple cold junction compensation


• Multi-standard RTD support

Typical Applications

• Process instrumentation calibration


• Control loop troubleshooting


• Transmitter verification


• Temperature sensor validation


• Plant maintenance and commissioning

Compatibility & Integration TC connector interface for thermocouple and mV measurements. Supports industry-standard RTD and thermocouple standards for integration into existing process systems.