• Model NO.：HZDW-DA
• Display：Digital
• Control：Manual Control
• Weight：0-100Kg
• Power Source：AC220V
• Oil Cylinder Position：Top
• Model Number：Hzrc
• Test Report：Yes
• Work Temperature：-10ºC~55ºC
• MOQ：1
• After Sale Service：Yes
• Certificate：ISO CE
• Resistance Range：0.01-1200Ω
• Current Range：0.00mA-20.0A
• Dimensions：285*85*56(mm)
• Transport Package：Wooden Box with Foam Inside
• Specification：CE,ISO,IEC
• Trademark：HuaZheng
• Origin：Hebei, China
• HS Code：9030332000
• Production Capacity：100 PCS,Month

Basic Info.

Model NO. HZDW-DA Display Digital Control Manual Control Weight 0-100Kg Power Source AC220V Oil Cylinder Position Top Model Number Hzrc Test Report Yes Work Temperature -10ºC~55ºC MOQ 1 After Sale Service Yes Certificate ISO CE Resistance Range 0.01-1200Ω Current Range 0.00mA-20.0A Dimensions 285*85*56(mm) Transport Package Wooden Box with Foam Inside Specification CE/ISO/IEC Trademark HuaZheng Origin Hebei, China HS Code 9030332000 Production Capacity 100 PCS/Month

Product Description

variable frequency step voltage ground network grid earth resistance tester
 I.Overview:

This device applies to test power-frequency ground resistance, contact voltage, pace voltage and earth electric resistivity. Can test substation grounding grid (4Ω), fire and water electric power plants, microwave stations (10Ω), lightning rod multi-purpose model (10Ω). It adopts different frequency anti-jamming technique, can get the data under 50Hz in strong interference circumstance. The maximum measured current is 5A, which will not cause the electric potential of the grounding device too high, it with strong anti-interference ability at the mean time, so it does not need power off during the test.

II.Features:

1. Good power frequency equivalence for measurement.

The waveform of test current is sine wave and the difference between frequency and power frequency is merely 5Hz. 45Hz and 55Hz frequencies are used for measurement.

2. Strong anti-jamming capability.

This instrument takes pilot frequency method for measurement and matches with the modern software and hardware filter technology so as to achieve high anti-jamming performance and stable and reliable testing data.

3. High precision.

Since the elementary error is only 0.005Ω, it can be used testing the large earthing grid with small grounding impedance.

4. Powerful function. It can measure Pill-I, Pill-U, grounding resistance, Grid grounding resistance, on resistance, soil resistivity .

5. Simple operation.  

6. Small wiring labor cost, with no need of large current lines.

III.Parameters

1. Impedance measurement range: 0~5,000Ω

2. Resolution: 0.001mΩ

3. Measurement error: ± (reading×2%+0.005Ω)

4. Anti-jamming capacity of power frequency 50Hz voltage:10V

5. Waveform of test current: Sine wave

6. Frequency of test current: 45, 50, 55, 60, 65Hz single frequency

  45/55Hz, 55/65Hz, 47.5/52.5Hz automatic dual frequency

7. Maximum output current: 5A

8. Maximum output voltage: 400V

9. Requirement for measuring lines: Section area of copper core of current line ≥1.5mm2

   Section area of copper core of voltage line ≥1.0mm2

10. Power supply: AC180~270V, 50/60Hz

11. Overall dimension: 370×285×285mm

12. Net Weight: 18kg

IV.Company Information

HuaZheng Electric Manufacturing (Baoding) Co.,Ltd is the supplier of the State Grid in China.It means we are the supplier of the Chinese Government.And our products spread throughout the whole China.
What's more, our customers come from different countries like America, England, Bulgaria, Brazil, Chile, Malysia, Vietnam and so on.
Our main products are Insulation Oil Tester, Cable Fault Locator, Power Quality Analyzer, High Voltage Generator, High Voltage Capacitor, Testing Transformer and so on.



V.Customer Visit




VI.Exhibition