Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of handheld zinc oxide tester in China. If you're going to wholesale durable handheld zinc oxide tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
Key Specifications
|
Parameter |
Value |
|
Power Supply |
Internal 8.4 V lithium battery or DC8.4 V adapter |
|
Leakage Current Range |
0 – 20 mA (expandable with optional clamp) |
|
Voltage Input Range |
30 – 250 V (expandable) |
|
Phase Angle Range |
0 – 360° |
|
Measurement Accuracy |
±5% of reading ±1 digit (current >100 μA; voltage >30 V) |
|
Battery Runtime |
Continuous >7 hours; intermittent >7×24 hours |
|
Data Storage |
Up to 10,000 test records |
|
Dimensions |
42 cm × 34 cm × 18 cm |
|
Weight |
Approx. 7.5 kg |
|
Display |
800×480 HD color touchscreen |



What the Tester Does
The Handheld Zinc Oxide Tester captures total leakage current and resistive current at the same time. It analyzes fundamental and 3rd through 9th harmonic content. Two sync methods are available. One uses a wired PT secondary voltage reference. The other is a software based reference free calculation. Optional current clamps and sensor boards extend measurement range. A color touchscreen shows real time voltage and current waveforms. Test data saves automatically. Word reports export via USB. Built in Bluetooth supports remote control and file transfer from a mobile app.

Where It Fits In
Live‑line substation inspections: Check arrester health without taking circuits offline.
Power plant maintenance: Perform routine preventive checks to catch early signs of trouble.
Factory final testing: Verify new arresters meet performance requirements before shipping.
Third‑party calibration labs: Supply accurate reference data for certification work.
Laboratory simulation and training: Operate under controlled conditions for education or R&D.
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Frequently Asked Questions
Q: What is the typical production lead time?
A: Most orders are ready to ship within 7 to 15 working days after deposit confirmation.
Q: Can you accommodate urgent orders?
A: Yes. Please inform us of the required delivery date, and we will adjust the production schedule whenever possible.
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