Add to that dual inputs, an easy to view backlit display, plus the ability to memorize settings at power down for easy restart make the 712B the ideal test tool for temperature calibration professionals who want a highly accurate, easy-to-use, single function RTD temperature calibrator.
Other useful features:
- Dual inputs and backlit display for easy interpretation of measurements
- Remembers power down settings to easily restart tests when powered up
- Provides linear ramp and 25% step auto ramp based on 0% and 100% settings
- Provides one-year and two-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 | ||||
| 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% +0.18°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 |
| 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 |
| 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 |
| 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 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 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 |
