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TM7900 is a high-precision Calibration Apparatus for Flux-meter, which generates magnetic flux by a built-in high-precision Volt-second Generator (1Vs=1Wb). It calibrates flux-meters by comparing indicating value of the flux-meter with the value it generates. Compared with Mutual Inductance method, Volt-second method is featured with easier to use, better precision and traceability, it is applied for calibrate digital flux-meters and electrical integrators.
| General specifications | |
| Power Supply | AC (220±22) V，(50±2) Hz |
| Temperature Performance | Operating temperature: 0~50°C； Storage temperature: -20°C～70°C |
| Humidity Performance | Operating humidity: 40%～80% R·H, no condensation Storage humidity : < 95% R·H, no condensation |
| Weight | About 4 kg |
| Communication interface | RS232 interface |
| Dimensions | 180mm(width) × 270mm (depth) × 230mm (height) |
- Accuracy Class: 0.005, 0.01, 0.02 or 0.05.
- Built-in high-precision voltage source and timer.
- Generate magnetic flux by integrating voltage and time.
- Calculate and output voltage and time by setting magnetic flux value.
- Quick calibration in several seconds.
- Unit switch: mWb, Wb, Vs, mVs, Mx.
- Support setting interior resistance and wire resistance.
- Eliminate interior resistance’s influence by compensation.
- Large LCD screen and press-key.
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