Tonghui TH1953, Руководство по эксплуатации

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9
AC voltage test technical indicators
[6] [9] [10]
Range Resolution
Full Scale
Reading
1 year T
CAL
± 5°C
3-5 Hz 5-20 Hz 20Hz-20kHz 20-50kHz 50-100 kHz 100-300kHz
100mV 1uV 119.999mV 1.00+0.03 0.38+0.03 0.10+0.03 0.15+0.05 0.63+0.08 4.00+0.50
1V 10uV 1.19999V 1.00+0.03 0.38+0.03 0.10+0.03 0.15+0.05 0.63+0.08 4.00+0.50
10V 100uV 11.9999V 1.00+0.03 0.38+0.03 0.10+0.03 0.15+0.05 0.63+0.08 4.00+0.50
100V 1mV 119.999V 1.00+0.03 0.38+0.03 0.10+0.03 0.15+0.05 0.63+0.08 4.00+0.50
750V
[5]
10mV 750.00V
[3]
1.00+0.03 0.38+0.03 0.10+0.03 0.15+0.05 0.63+0.08 4.00+0.50
AC current test technical indicators
[6] [10] [11]
Range Voltage drop Resolution
Full Scale
Reading
1 year
T
CAL
± 5°C
3-5 Hz 5-20 Hz 20Hz-10kHz
100.000uA <0.011V 1nA 119.999uA
[1]
1.00+0.03 0.5+0.03 0.20 + 0.04
1.00000mA <0.011V 10nA 1.19999mA 1.00+0.03 0.5+0.03 0.20 + 0.04
10.0000mA < 0.05 V 0.1uA 11.9999mA
[1]
1.00+0.03 0.5+0.03 0.20 + 0.04
100.000mA < 0.5 V 1uA 119.999mA 1.00+0.03 0.5+0.03 0.20 + 0.04
1.00000A < 0.7 V 10uA 1.19999A 1.00+0.03 0.5+0.03 0.20 + 0.04
3.00000A < 2.0 V 10uA 3.00000A
[2] [3]
1.00+0.03 0.5+0.03 0.25+0.04
10.0000A < 0.5 V 100uA 11.9999A
[4]
1.00+0.03 0.5+0.03 0.30+0.04
Frequency test count indicator
[13] [14]
Frequency Resolution
Full Scale
Reading
1 year
T
CAL
± 5°C
3Hz - 10Hz[2] 10uHz 9.99999Hz 0.050 + 50
10Hz - 100Hz 100uHz 99.9999Hz 0.010 + 10
100Hz - 1kHz 1mHz 999.999Hz 0.005 + 2
1kHz - 10kHz 10mHz 9.99999kHz 0.005 + 2
10kHz - 100kHz 0.1Hz 99.9999kHz 0.005 + 2
100kHz - 300kHz 1Hz 300.000kHz 0.005 + 2
300kHz - 1MHz[3] 1Hz 999.999kHz 0.005 + 2
[1]. For DC: The technical specifications are valid when the instrument has preheated after 60 minutes, the
integration time is set to 10 or 100 NPLC, and auto zero is enabled. For AC: The technical specifications are valid
after 60 minutes of preheating, slow AC filtering, and sine wave.
[2]. Outside the range of TCAL ± 5 °C, the temperature coefficient is increased by 1 for every 1 degree Celsius
change.
[3]. Relevant calibration standards.
[4]. The smallest data change that can be displayed.
[5]. Full-scale accuracy, there is need to perform NULL (clearing) operation in order to get better accuracy.
[6]. DC 1000V, AC 750V, AC current 3A and DC current 3A can only test 5% of the overrange.
[7]. When measuring resistance, it is better to use shielded line test when the resistance is greater than 100kΩ.
Because the cutting magnetic field generates an induced current, and the large resistor has a relatively small test