For the temperature calibration professional that wants a highly accurate, easy-to-use, single function RTD temperature calibrator the Fluke 712B is the ideal test tool.
Product Highlights
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 certificate of calibration
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
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)
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
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
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 to 800°C
0.015%
0.03%
1 mA
0.02%
0.03%
+0.18°C
+0.36°C
+0.18°C
+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
100 to 630°C
0.02%
0.03%
500 μA
0.02%
0.03%
+0.18°C
+0.36°C
+0.18°C
+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
100 to 630°C
0.02%
0.03%
250 μA
0.02%
0.03%
+0.28°C
+0.56°C
+0.28°C
+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
100 to 630°C
0.02%
0.03%
250 μA
0.02%
0.03%
+0.18°C
+0.36°C
+0.18°C
+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 to 630°C
0.02%
0.03%
1 mA
0.02%
0.03%
+0.18°C
+0.36°C
+0.18°C
+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 to 630°C
0.02%
0.03%
1 mA
0.02%
0.03%
+0.18°C
+0.36°C
+0.18°C
+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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