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- Manuals
- 7
- Categories
- 2
- Languages
- ZH
- Last added
- 2012-02-21
Featured Wuhan市合众电气设备制造 manuals

Hezhong Electric HZXC/HZTC Series Control Box User Manual
This manual provides an overview of the HZXC and HZTC series control boxes produced by Hezhong Electric. It includes product series tables, panel layout diagrams, external wiring diagrams, and detailed operation procedures.
Safety guidelines, operating conditions, accessories, and an appendix with current setting tables are also included to ensure reliable and safe use in power testing applications. This manual is written in Chinese.
Covers: Overview · Product Series · Panel Diagram · External Wiring Diagram · Operation Procedure · Operating Conditions

Hezhong Electric HZZY-II DC Resistance Tester User Manual
The HZZY‑II DC resistance tester is designed for measuring the contact resistance of transformer windings, low‑voltage switches, instrument transformers and motor windings. It offers high accuracy, high sensitivity and automatic zero‑adjustment, and can be used with both AC and DC power sources, making it suitable for field measurements where mains power is unavailable.
The document includes sections on the instrument overview, main technical specifications, detailed operating procedures, a list of supplied accessories, and guidelines for maintenance and repair. It also provides safety notes and troubleshooting tips for reliable use. This manual is written in Chinese.
Covers: Overview · Technical Specifications · Operation Instructions · Product Accessories · Maintenance and Repair

Hezhong Electric BY2671 Series Digital Megohmmeter User Manual
The BY2671 series digital megohmmeter is designed for measuring insulation resistance of transformers, motors, cables and other electrical equipment. It features high output power, strong load capability, and an LCD display that shows resistance values directly.
The manual explains how to power on the device, select voltage levels, start high‑voltage testing, and read results. It also covers proper storage, battery charging, safety precautions, and the warranty and service policies offered by Hezhong Electric. This manual is written in Chinese.
Covers: Product Introduction · Technical Specifications · Operation Method · Maintenance and Precautions · After‑sales Service

Hezhong 701/702 Microcomputer Relay Protection Tester User Manual
The manual introduces the 701/702 microcomputer relay protection tester, describing its technical compliance with GB/T7261‑2000 and DL/T624‑1997 standards. It explains the device’s functions, including a rotary‑mouse interface, PC‑linked operation, and automatic report generation.
Detailed sections cover technical specifications, working principles, panel layout, step‑by‑step operating procedures, PC software usage, troubleshooting tips, and service information such as firmware replacement and warranty support. This manual is written in Chinese.
Covers: Introduction · Foreword · Technical Specifications · Working Principle · Panel Description · Operation Instructions
Latest Wuhan市合众电气设备制造 manuals
Hezhong Electric HZXC/HZTC Series Control Box User Manual
User Manual 7 pages · 215 KB · ZHUser manual for Hezhong Electric HZXC and HZTC series control boxes, covering specifications, wiring, operation, safety and accessories.
Hezhong Electric HZZY-II DC Resistance Tester User Manual
User Manual 5 pages · 136 KB · ZHThe manual provides overview, specifications, operation steps, maintenance and safety instructions for the Hezhong Electric HZZY‑II DC resistance tester.
Hezhong Electric BY2671 Series Digital Megohmmeter User Manual
User Manual 6 pages · 151 KB · ZHThe BY2671 series digital megohmmeter manual provides operation steps, maintenance tips, technical specifications, and after‑sales service information.
Hezhong 701/702 Microcomputer Relay Protection Tester User Manual
User Manual 51 pages · 445 KB · ZHUser manual for the Hezhong 701/702 microcomputer relay protection tester with specifications, operation, and maintenance instructions.
Wuhan Hezhong KJTC-III High Voltage Switch Mechanical Characteristics Tester User Manual
User Manual 16 pages · 265 KB · ZHUser manual for the KJTC-III high‑voltage switch mechanical characteristics tester made by Wuhan Hezhong.
Hezhong Electric 701/702 Microcomputer Relay Protection Tester Service Manual
Service Manual 51 pages · 697 KB · ZHThis manual explains operation, specifications, wiring, maintenance and service procedures for the 701/702 microcomputer relay protection tester.
Wuhan Hezhong ZGF Series High Voltage Generator User Manual
User Manual 12 pages · 267 KB · ZHThe Wuhan Hezhong ZGF series portable DC high‑voltage generator user manual provides safety warnings, specifications, operation steps and troubleshooting.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Service Manual
Disassembly, diagnostics and part numbers, for repair.
Questions answered in Wuhan市合众电气设备制造 manuals
What is the operating temperature range for the control box?
The device can be used in an ambient temperature range of 0 °C to 40 °C.
From: Hezhong Electric HZXC/HZTC Series Control Box User Manual
What should be inspected when opening the box for the first time?
Check the electrical components and contacts for any transport damage or poor connections.
From: Hezhong Electric HZXC/HZTC Series Control Box User Manual
How do I zero the instrument?
When the instrument is set to the 20 mΩ or 200 mΩ range and in the charging state, adjust the zero‑adjustment potentiometer until the display reads zero; other ranges auto‑zero.
From: Hezhong Electric HZZY-II DC Resistance Tester User Manual
Can I switch between AC and DC power sources?
The AC and DC switches are mutually exclusive; when the AC switch is engaged, the DC switch is released, and vice versa.
From: Hezhong Electric HZZY-II DC Resistance Tester User Manual
How do I measure insulation resistance with the BY2671 megohmmeter?
Turn the power switch ON, select the required voltage level, press the high‑voltage start key, and the LCD will display the stable resistance value.
From: Hezhong Electric BY2671 Series Digital Megohmmeter User Manual
What is the required power supply voltage for the tester?
The tester operates from AC 220 V ±10 % at 50/60 Hz.
From: Hezhong 701/702 Microcomputer Relay Protection Tester User Manual
