- Energy Meter Field Calibrator
-
Transformer Test Equipment
- Transformer Test Bench
- Turns Ratio Tester
- DC Resistance Tester
- Transformer Tan Delta Tester
- Sweep Frequency Response Analyzer
- Partial Discharge Tester
- CT PT Analyzer
- Transformer On-Load Tap-Changer Tester
- Short-Circuit Impedance And No-load Integrated Tester
- Winding Resistance And Turns Ratio Integrated Tester
- Transformer Capacitance And Inductance Tester
- Transformer Capacity And Characteristic Tester
- Lightning Arrester Tester
- Short-Circuit Impedance Tester
- Transformer Oil Test Equipment
- SF6 Gas Analyzer
- Secondary Injection Relay Test Set
- Resistance Tester
- Power Quality Analyzer
- HV Switch Tester
- High Voltage Test Equipment
- Cable Fault Locator
- Battery Tester
Huazheng HZ-3340D Transformer DC Resistance Test Instrument
I.Performance Features
1.Fixed current output (20mA-40A across 9 ranges) and automatic current output (0.1-40A), where the optimal current is automatically selected based on the resistance of the test product.
2.Wide measurement range (0Ω - 20KΩ), capable of measuring the inductive DC resistance of transformers, mutual inductors, and other devices.
3.Multiple measurement functions:
4.Data stabilization judgment function: Automatically calculates the percentage deviation of resistance over 5'', 15'', or 30'' to accurately assess the stability of the data and prevent misreading.
5.Temperature conversion based on test product materials (copper, aluminum) for easy comparison with historical data.
6.Transformer demagnetizing function: Effectively reduces transformer remanence.
7.Additional features:
8.6" color touch LCD display for clear data visualization.
9.Dual RS485 communication interfaces for inter-device cascading. In cooperation with the control software on a host computer, the instrument supports remote control and measurement. Optional built-in Bluetooth module for wireless communication.
10.Audible discharging alarm with clear discharge indication to reduce the risk of misoperation.
11.Protection against incorrect AC380V power connection: When activated, an audible alarm alerts the user to prevent damage from misconnection. The instrument also includes robust counter-EMF protection and strong resistance to arc discharge.
12.Durability and reliability: Features include dust, shock, and moisture protection, along with high measurement accuracy, excellent stability, good repeatability, and high portability.
II.Specifications
1.Output current: automatic, 40A, 20A, 10A, 5A, 2A, 1A, 200mA, 100mA, 20mA
2.Range:
Automatic (0.1-40A) 0 - 200Ω (three-phase simultaneous measurement 0 - 120Ω)
40A 0 – 0.5Ω (three-phase simultaneous measurement 0 – 0.3Ω)
20A 0.0005 – 1.0Ω (three-phase simultaneous measurement0.001–0.6Ω)
10A 0.001 – 2.0Ω (three-phase simultaneous measurement0.002–1.2Ω)
5A 0.002 – 4.0Ω (three-phase simultaneous measurement0.005–2.5Ω)
2A 0.005 – 10Ω (three-phase simultaneous measurement0.01 – 6.0Ω)
1A 0.01 – 20Ω (three-phase simultaneous measurement0.02 - 12Ω)
200m A 0.1 – 100Ω (three-phase simultaneous measurement0.1 - 60Ω)
100m A 0.5 – 200Ω (three-phase simultaneous measurement0.5 - 120Ω)
20m A 10 – 20kΩ only single-phase test)
1.Accuracy: 0.2%±0.1μΩ
2.Minimum resolution: 0.01μΩ
3.Working temperature: -20~ 40℃
4.Ambient humidity: ≤80%RH, no dewing
5.Working power supply: AC: AC220V±10%, 50Hz±1Hz
6.Volume: length 420mm× width 320mm× height 200mm
7.Net weight: 14.8kg
III.Packing List
|
No. |
Item |
Qty |
|
1 |
Main engine |
1 |
|
2 |
Power Cable |
1 |
|
3 |
Black test line |
2 |
|
4 |
Red test line |
2 |
|
5 |
Green test line |
2 |
|
6 |
Yellow test line |
2 |
|
7 |
Grounding wire |
1 |
|
8 |
Serial port cable |
2 |
|
9 |
Insurance tube |
2 |
|
10 |
Standard resistor |
1 |
|
11 |
USB flash drive |
1 |
|
12 |
Printing paper |
1 |


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