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TM7900 Precision Volt-second Generator
For Flux Meter Calibration
TM7900 is a high-precision Calibrator 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-meter and electrical integrator.
Fast Calibration of Digital Fluxmeter |
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Range | Accuracy ±(ppm of reading + ppm of range) [1] | |||
Class 0.05 | Class 0.02 | Class 0.01 | Class 0.005 | |
2 mV | 200 + 200 | 100 + 100 | 50 + 100 | 20 + 100 |
20 mV | 200 + 200 | 100 + 50 | 50 + 30 | 20 + 10 |
200 mV | 200 + 200 | 100 + 50 | 50 + 30 | 20 + 10 |
2V | 200 + 200 | 100 + 50 | 50 + 30 | 20 + 10 |
Note [1] : (ppm = parts per million) (e.g., 10ppm = 0.001%). | ||||
l Regulating fineness: 0.005*Range, 0.001%*Range (class 0.005).
l Protective function: Short-circuit protection, Overload protection.
Pulse output | Accuracy (±) | |||
Class 0.05 | Class 0.05 | Class 0.05 | Class 0.05 | |
0.1 s | 0.5 | 0.5 | 0.2 | 0.2 |
0.5 s | 0.5 | 0.5 | 0.2 | 0.2 |
1 s | 0.5 | 0.5 | 0.2 | 0.2 |
5 s | 0.5 | 0.5 | 0.2 | 0.2 |
l Pulse width output range: 0.1s ~ 5s
Range | Accuracy ±(ppm of reading + ppm of range) | |||
Class 0.05 | Class 0.05 | Class 0.05 | Class 0.05 | |
Combination of voltage and time | 500 +0.1 | 200 +0.1 | 100 +0.1 | 50 +0.1 |
l Flux output range: 0.1mWb ~10Wb, 7-dights display.
Power Supply | AC (220±22) V,(50±2) Hz |
Temperature Performance | Operating temperature: 0~50℃; 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) |
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