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Product overview
1) High-strength aluminum alloy shell body, the circuit equipped with phase locked loop and switched capacitor filter, based on which the instrument play an effective role in shielding power frequency and radio frequency interference.
2) DC/AC converter can transform DC current into AC low-frequency constant current for the measurement.
3) Auxiliary grounding resistance can change in the range of 0 ~ 2KΩ (RC), 0 ~ 40KΩ (RP), that will not affect measurement results.
4) Without manual adjustment to zero, with three and a half bits LED display, the instrument can be used for measuring the grounding resistance, the conductor resistance of low resistance, soil resistivity and AC ground voltage.
5) If tested loop encounter failure, the screen displays "1" indicating large range, which consistent with conventional measurement practices.
Technical indicators:
1. Operating Conditions
Temperature: 0 ℃ ~ +45 ℃
Relative humidity: ≤ 85%
2. Measuring range and constant current value (virtual value)
Resistance:
0 ~ 2Ω (10mA), 2 ~ 20Ω (10mA), 20 ~ 200Ω (1mA)
Voltage: AC 0 ~ 20V
3. Measurement accuracy and resolution
Accuracy: 0 ~ 0.2Ω ≤ ± 3% ± 1d
0.2Ω ~ 200Ω ≤ ± 1.5% ± 1d
1 ~ 20V ≤ ± 3% ± 1d
Resolution: 0.001Ω, 0.01Ω, 0.1Ω, 0.01V
4.Measurement errors caused by auxiliary grounding resistance and ground voltage
Auxiliary grounding resistance RC (between C1 and C2)
0 ~ 2Ω, 2 ~ 20Ω ≤ 1KΩ
20 ~ 200Ω ≤ 2KΩ
RP (between P1 and P2) <40KΩ error ≤ ± 5%
Ground voltage (frequency virtual value) ≤ 5V error ≤ ± 5%
5. Power supply and power dissipation
Maximum power dissipation≤ 2W
DC: 8 × 1.5V (AA, R6) Battery
AC: 220V/50Hz
6. Dimensions and weigHC
Dimensions: 220× 200 × 105mm
Weigt: ≤ 1.4kg
Wuhan Hance Electric Co., Ltd is a professional manufacturer specializing in developing, producing and marketing electricity meters in electricity industry. Our main products include transformer calibration test equipment, measuring equipment, a variety of electrical test equipment, and automatic substations; they are widely used in electricity, water conservancy, oil, railway, mining, chemical, surveying, teaching, electronics, and other industries.
Our company has always insisted on the guideline of “complete adjustment and 100% inspection”, to enture all devices are fully qualified, as well as a perfect pre-sales services system. The warranty system of “One year warranty and lifetime services” can ensure that every user will enjoy our best service.
Lilian Han
Wuhan Hance Electric Co., Ltd (China)
Contact: Lilian Han / Sales Department
Tel: 0086-15072396750
Fax: 0086-27-87531551
WeChat: 15072396750
QQ:1514423893
E-mail: lilianhan68@aliyun com
Skype: lilianhance@outlook com
ADD: NO. (1) 3/F, 4-03 R&D Factory, Optical Valley, Core Center 3.3 Period, NO. 303 Optical Valley Avenue, East Lake Development Zone, Wuhan, China
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