Fluke 724 Temperature Calibrator

The Fluke 724 Temperature Calibrator simultaneously measures and sources temperature signals across RTD, thermocouple, voltage, current, and resistance parameters. Designed for field and laboratory temperature sensor verification, it delivers calibration-grade accuracy with straightforward operation and dual-line display output. The instrument supports 10–12 thermocouple types (J, K, T, E, L, N, U, B, R, S, XK, BP) and 7 RTD variants (Ni120, Pt100 385/393/JIS/3926, Pt200, Pt500, Pt1000), plus DC voltage, current, and resistance measurement and sourcing functions.

Technical Specifications

Temperature Measurement & Sourcing

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


• RTD types: Ni120; Pt100 (385, 393, JIS, 3926); Pt200 (385); Pt500 (385); Pt1000 (385)


• RTD accuracy: 0.2 °C to 0.33 °C (range dependent)


• Thermocouple accuracy: 0.7 °C to 2.2 °C (range and type dependent) Electrical Measurement & Sourcing


• Voltage measurement: 0–30 V DC; voltage sourcing: 0–10 V DC


• Millivolt measurement/sourcing: 0–100 mV DC; -10.00 mV to +75.00 mV


• Current measurement: 0–24 mA DC


• Resistance measurement: 0–3200 Ω; resistance sourcing: 15–3200 Ω


• Voltage DC measurement accuracy: 0.02% Rdg + 2 LSD; 0.025% + 1 count (TC connector)


• Voltage DC source accuracy: 0.02% Rdg + 2 LSD; 0.025%


• Current DC accuracy: 0.02% Rdg + 2 LSD


• Resistance accuracy: 0.1 Ω to 1.5%; 0.1 Ω (4-wire), 0.15 Ω (2- and 3-wire)


• Resistance source accuracy: 0.15 Ω to 1 Ω


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


• 24 V DC supply output; 10% accuracy

Key Features

• Simultaneous input and output display


• No-menu control interface


• 24 V DC loop power for transmitter testing


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


• Compact form factor: 96 × 200 × 47 mm

Typical Applications

• RTD and thermocouple sensor calibration and verification


• Temperature transmitter loop testing


• Field instrument commissioning and maintenance


• Industrial process temperature validation

Compatibility & Integration The 724 measures and sources across industry-standard temperature sensor types and accepts voltage, current, and resistance signals for general-purpose instrumentation verification.