Tonghui TH1953, Руководство по эксплуатации

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5kHz - 10kHz 0.30+0.04 0.30+0.04 0.30+0.04 0.030+0.006
10A range
3Hz- 5Hz 1.00+0.02 1.00+0.02 1.00+0.04 0.100+0.006
5Hz- 10Hz 0.30+0.02 0.30+0.03 0.30+0.04 0.035+0.006
10Hz- 5kHz 0.15+0.04 0.15+0.04 0.15+0.04 0.015+0.006
5kHz - 10kHz 0.15+0.04 0.15+0.04 0.15+0.04 0.030+0.006
Frequency test count indicator
[13] [14]
100 mV, 1 V, 10 V, 100 V
and 750 V range
24 hours
T
CAL
± 1°C
90 days
T
CAL
± 5°C
1 year
T
CAL
± 5°C
2 year
T
CAL
± 5°C
Temperature
coefficient /°C
2-10Hz 0.100 0.100 0.100 0.100 0.0002
10-100 Hz 0.030 0.030 0.030 0.035 0.0002
100Hz-1kHz 0.003 0.008 0.010 0.015 0.0002
1-300kHz 0.002 0.006 0.010 0.015 0.0002
300kHz-1MHz
[15]
0.002 0.006 0.010 0.015 0.0002
Square wave
[16]
0.001 0.006 0.010 0.015 0.0002
Additional gating error
Frequency 1 sec. 0.1 sec. 0.01 sec.
2-10Hz 0 0.200 0.200
10-100 Hz 0 0.060 0.200
100Hz-1kHz 0 0.020 0.200
1-300kHz 0 0.004 0.030
300kHz-1MHz
[15]
0 0.004 0.030
Square wave
[16]
0 0 0
[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
current, the signal-to-noise ratio will be small and the test will be unstable.
[8]. Specifications are applicable to 4-wire or 2-wire resistance measurements. When the zero clearing is not
activated, the 2-wire resistance measurement will increase the additional error of 0.2Ω.
[9]. Specifications are valid when the sine wave input is >0.3% of the range and greater than 1mVrms. The
750-ACV range is limited to the 8 x Volt–Hz range.
[10]. Low Frequency Performance: three filter settings are available: 3 Hz, 20 Hz, 200 Hz. The frequency above