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TUNKIA TM7900 Precision Volt-second Generator for Flux Meter Calibration

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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.

Features:	Accuracy: 0.005%, 0.01%, 0.02% or 0.05% Unit switch: mWb, Wb, Vs, mVs, Mx
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Model:
TM7900
Brand:
TUNKIA

TM7900 Precision Volt-second Generator

for Flux Meter Calibration

TM7900 Precision Volt-second Generator For Flux Meter Calibration

1. Summary

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.

2. Features

• Accuracy: 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.

3. Application

☆ Fast Calibration of Digital Fluxmeter

TM7900 Precision Volt-second Generator For Flux Meter Calibration Fast Calibration of Digital Fluxmeter

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Range	Accuracy ± (ppm of reading + ppm of range) [1]
Range	0.05 %	0.02 %	0.01 %	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%).

Time output	Measurement Uncertainty (k=2), μs
Time output	0.05 %	0.05 %	0.05 %	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

Range	*Measurement Uncertainty (k=2), ppmRD + μWb**
Range	0.05 %	0.05 %	0.05 %	0.05 %
Combination of voltage and time	500 +0.1	200 +0.1	100 +0.1	50 +0.1

Power Supply	AC (220±22) V，(50±2) Hz
Temperature Performance	Operating temperature: 0°C~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)
Dimensions

Range	Accuracy ± (ppm of reading + ppm of range) [1]
Range	0.05 %	0.02 %	0.01 %	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%).

TM7900 Precision Volt-second Generator for Flux Meter Calibration

TM7900 Precision Volt-second Generator

for Flux Meter Calibration

TM7900 Precision Volt-second Generator

for Flux Meter Calibration

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