Fluke 712B RTD Calibrator

The Fluke 712B RTD Calibrator delivers precision temperature calibration in a compact, easy-to-use instrument. Designed for process technicians who demand accuracy, reliability, and speed, this RTD calibrator simplifies verifying, sourcing, and measuring RTD signals across a wide range of applications.

High Accuracy: ±0.015°C accuracy ensures dependable, lab-quality temperature verification in the field
Comprehensive Compatibility: Works with multiple RTD sensor types including Pt100, Ni120, and Cu10
Dual Functionality: Source and measure RTD signals to test transmitters, indicators, and control systems

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Manufacturer	Fluke

SKU: 712B Categories: RTD Calibrator Rentals, RTD Calibrators

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Product Overview: Fluke 712B RTD Calibrator

The Fluke 712B RTD Calibrator gives technicians the flexibility to source and measure resistance temperature detector (RTD) signals with exceptional precision. Ideal for troubleshooting temperature transmitters, testing control loops, and verifying sensor accuracy, it delivers stable readings and fast response times for maximum productivity. The 712B supports 13 different RTD types and resistance values, allowing seamless compatibility across a variety of process control systems. With its ergonomic design, easy-to-read display, and one-handed operation, it’s built to perform in demanding industrial conditions. Reliable, accurate, and efficient—the Fluke 712B is the go-to RTD calibrator for professionals who take temperature measurement seriously.

Achieve fast, accurate RTD calibration anywhere—order the Fluke 712B today from JM Test Systems.

Fluke 712B Features:

The 712B can measure and simulate (13) different RTD types and resistance
Measure 4 to 20 mA signals while simultaneously sourcing a temperature signal
Hanging tool designed in and included with every unit
Configurable 0% and 100% source settings for quick 25% linearity checks
Linear ramp and 25% step auto ramp based on 0% and 100% settings
Dual inputs and backlit display for easy interpretation of measurements
Power down settings remembered at power up for easy restart of tests
1-year and 2-year specifications and traceable certification of calibration

Specifications: Fluke 712B RTD Calibrators

General Specifications
Maximum voltage applied between any terminal and earth ground or between any two terminals	30 V
Operating temperature	-10°C to 50°C
Storage temperature	-30°C to 60°C
Operating altitude	2,000 m
Storage altitude	12,000 m
Relative humidity (% RH operating without condensation)	Non condensing
	90% (10°C to 30°C)
	75% (30°C to 40°C)
	45% (40°C to 50°C)
	(Without condensation)
Vibration requirements	MIL-T-28800E, Class 2
Drop text requirements	1 m
IP Rating	IEC 60529: IP52
Electromagnetic environment	IEC 61326-1, Portable
Safety	IEC 61010-1, Max 30 V to earth, Pollution Degree 2
Power supply	4 AA NEDA 1.5A IEC LR6 batteries
Size (H x W x L)	52.5 x 84 x 188.5 mm
Weight	515 g
DC mA Measurement
Resolution	0-24 mA
Range	0.001 mA
Accuracy (% of reading + counts)	0.010% + 2 μA
Temperature coefficient	± (0.002% of reading + 0.002% of range) /°C ( < 18°C or >28°C)
Ohms Measurement
Ohms range	Accuracy (% of reading +counts)
0.00 Ω to 400.00 Ω	0.015% + 0.05 Ω
400.0 Ω to 4000.0 Ω	0.015% + 0.5 Ω
Read accuracy is based on 4-wire input. For 3-wire ohm measurements, assuming all three leads are matched, add 0.05 Ω (0.00 Ω~400.00 Ω), 0.2 Ω (400.0 Ω~4000.0 Ω) to the specifications.
Temperature coefficient	±(0.002% of reading + 0.002% of range) / °C (< 18°C or > 28°C)
Ohms Source
Ohms range	1.0 Ω to 400.0 Ω
	1.00 Ω to 400.00 Ω
	400.0 Ω to 1500.0 Ω
	1500.0 Ω to 4000.0 Ω
Excitation current from measurement device	0.1 mA to 0.5 mA
	0.5 mA to 3 mA
	0.05 mA to 0.8 mA
	0.05 mA to 0.4 mA
Accuracy (% of reading + counts)	0.015% + 0.1 Ω
	0.015% + 0.05 Ω
	0.015% + 0.5 Ω
	0.015% + 0.5 Ω
Resolution	0.00 Ω to 400.00 Ω		0.01 Ω
Resolution	400.0 Ω to 4000.0 Ω		0.1 Ω
Temperature coefficient	± (0.002% of reading + 0.002% of range) /°C ( <18°C or >28°C) Supports pulsed transmitters and PLCs with pulse times as short as 5 ms
RTD Input and Output
RTD Type (α)	Range (°C)	Measure (°C)			Source (°C)
RTD Type (α)	Range (°C)	1-year	2-year	Source current	1-year	2-year
10 Ω Pt (385)	-200 to 100°C	1.5°C	3°C	1 mA	1.5°C	3°C
10 Ω Pt (385)	100 to 800°C	1.8°C	3.6°C	1 mA	1.8°C	3.6°C
50 Ω Pt (385)	-200 to 100°C	0.4°C	0.7°C	1 mA	0.4°C	0.7°C
50 Ω Pt (385)	100 to 800°C	0.5°C	0.8°C	1 mA	0.5°C	0.8°C
100 Ω Pt (385)	-200 to 100°C	0.2°C	0.4°C	1 mA	0.2°C	0.4°C
100 Ω Pt (385)	100 to 800°C	0.015% +0.18°C	0.03% +0.36°C	1 mA	0.015% +0.18°C	0.03% +0.36°C
200 Ω Pt (385)	-200 to 100°C	0.2°C	0.4°C	500 μA	0.2°C	0.4°C
200 Ω Pt (385)	100 to 630°C	0.015% +0.18°C	0.03% +0.36°C	500 μA	0.015% +0.18°C	0.03% +0.36°C
500 Ω Pt (385)	-200 to 100°C	0.3°C	0.6°C	250 μA	0.3°C	0.6°C
500 Ω Pt (385)	100 to 630°C	0.015% +0.28°C	0.03% +0.56°C	250 μA	0.015% +0.28°C	0.03% +0.56°C
1000 Ω Pt (385)	-200 to 100°C	0.2°C	0.4°C	250 μA	0.2°C	0.4°C
1000 Ω Pt (385)	100 to 630°C	0.015% +0.18°C	0.03% +0.36°C	250 μA	0.015% +0.18°C	0.03% +0.36°C
100 Ω Pt (3916)	-200 to 100°C	0.2°C	0.4°C	1 mA	0.2°C	0.4°C
100 Ω Pt (3916)	100 to 630°C	0.015% +0.18°C	0.03% +0.36°C	1 mA	0.015% +0.18°C	0.03% +0.36°C
100 Ω Pt (3926)	-200 to 100°C	0.2°C	0.4°C	1 mA	0.2°C	0.4°C
100 Ω Pt (3926)	100 to 630°C	0.015% +0.18°C	0.03% +0.36°C	1 mA	0.015% +0.18°C	0.03% +0.36°C
10 Ω Cu (427)	-100 to 260°C	1.5°C	3°C	1 mA	1.5°C	3°C
120 Ω Ni (672)	-80 to 260°C	0.15°C	0.3°C	1 mA	0.15°C	0.3°C
50 Ω Cu (427)	-180 to 200°C	0.4°C	0.7°C	1 mA	0.4°C	0.7°C
100 Ω Cu (427)	-180 to 200°C	0.2°C	0.4°C	1 mA	0.2°C	0.4°C
YSI400	15 to 50°C	0.2°C	0.4°C	250 μA	0.2°C	0.4°C
1. Sensor inaccuracies not included. 2. Resolution: 0.1°C. 3. Read accuracy is based on 4-wire input. For 3-wire RTD measurements, assuming all three RTD leads are matched, add 1.0°C (Pt10 and Cu10), 0.6°C (Pt50 and Cu50), 0.4°C (Other RTD types) to the specifications. 4. Source Accuracy in source mode is based on 0.5 mA~3 mA (1.00 Ω~400.00 Ω), 0.05 mA~0.8 mA (400.0 Ω~1500.0 Ω), 0.05 mA~0.4 mA (1500.0 Ω ~4000.0 Ω), excitation current (0.25 mA for Pt1000 range). 5. Temperature Coefficient: ±0.05°C /°C for measure, ±0.05°C /°C (< 18°C or > 28°C) for source. 6. Supports pulsed transmitters and PLCs with pulse times as short as 5 ms.

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