Huazheng HZHL-100A Contact Resistance Tester User Manual

: July 2, 2024
: Huazheng

Table of Contents

Huazheng HZHL-100A Contact Resistance Tester
Product Usage Instructions
Operating Instructions
FAQ
Safety instruction
Brief Introduction
Technical specifications
Structure
Packing list
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Huazheng HZHL-100A Contact Resistance Tester

Product Usage Instructions

Before using the instrument, read the user manual thoroughly to understand the instructions for safe operation.
Follow all safety guidelines to prevent any potential hazards.

Operating Instructions

Ensure the instrument is charged using the provided charger before use.
Power on the resistance tester and select the appropriate test mode.
Connect the test leads to the designated test interface according to polarity (+/-).
Select the current output range based on the resistance to be measured.
Initiate the test by pressing the start button and wait for the automatic completion of the test.
Observe the results displayed on the LCD screen and record if necessary.

FAQ

Q: How do I charge the HZHL-100A Contact Resistance Tester?
A: Use the provided 12.6V/2A charger to charge the built-in 12.6V 9000mAh rechargeable lithium battery of the tester.
Q: What is the test mode used for this resistance tester?
A: The test mode used is the four-line method for conducting contact resistance tests.
Q: How can I interpret the results displayed on the LCD screen?
A: The results displayed will show the contact resistance values based on the selected current output range and test parameters.

Dear user

Thank you for choosing the HZHL-100A Contact Resistance Tester.
We hope that this instrument can make your work easier and more enjoyable so that you can get the feeling of office automation in the test and analysis work.
Before using the instrument, please read this manual, and operate and maintain the instrument according to the manual to prolong its service life.
“Just a light press, the test will be completed automatically” is the operating characteristic of this instrument.
If you are satisfied with this instrument, please tell your colleagues; if you are not satisfied with this instrument, please call (0312) 6775656 to tell you to serve you at all times-Baoding Huazheng Electric Manufacturing Co., Ltd., our company will make you satisfied!

Safety instruction

Thank you for purchasing our company’s circuit resistance tester. To better use this product, please be sure to:
Read the user manual thoroughly, the operator must fully understand the manual instructions and can skillfully operate the instrument before the actual test.
Strictly follow the safety rules and precautions listed in this manual.
In any case, use this instrument for safety.
For your safety concerns, please use only the wires and accessories attached to the equipment (IEC61010-031 (2002)).
Before use, the instrument and accessories should be in good condition, and the insulation layer of the instrument and test line can be used without damage, exposure or breaking. Break the casing or test line.
Before testing, ensure that the tested resistance is not charged.
During the test, never make contact with the resistance being tested and the circuit under test.
Confirm that the test line is closely connected to the instrument and the subject-object.
If the casing or test line is broken, please stop using it.
Do not touch the exposed metal part of the output jack and port to avoid electric shock.
Pay attention to the labels and symbols of the instrument panel and the backplane.
Do not place the instrument in a high-temperature, humid, direct sunlight environment for a long time.
Disassembly, repair and use of this instrument must be operated by authorized personnel.
Do not test in flammable places, the spark may cause an explosion.
The instrument must be maintained regularly and kept clean, and must not be wiped with corrosive agents and coarse materials.
Instruments shall be placed in a dry, ventilated room free of corrosive gases.
If the instrument is placed for a long time, please charge the battery once every 2 months.
Only use the power adapter and battery pack provided by the manufacturer, which has a specific safety level.
Due to the reason of this instrument, if the continued use will bring danger, it shall be stopped and sealed immediately and handled by the authorized agency.
The symbol “” on the instrument and manual is a dangerous sign, and the user must follow the instructions to operate it safely.
The symbol “” in the instrument and manual is an extremely dangerous sign, and the user must operate safely in strict accordance with the instructions.

Brief Introduction

Circuit resistance tester, also known as micro-durometer, or contact resistance tester， Is our company carefully developed a special measurement of a variety of high voltage switch contact resistance, high voltage circuit breaker contact resistance, metal welding member connection resistance, metal conductor circuit resistance, precision micro-European resistance of the instrument。
The instrument takes the high-speed microcontroller as the core, Combined with a high-precision A / D converter, digital measurement technology, anti-power frequency interference technology, and advanced programmed current source technology, The built-in large-capacity rechargeable lithium battery produces no ripple DC, Maximum energy output of 100A, The output current can be finely adjusted in every 2.5A steps, Up to 59 current gears, Meet the multiple-current gear test; At the same time can set the time (10s, 20s, 30s, 40s, 50s, 60s) continuous output large current test, Can achieve high precision, high stability and high intelligence test in a strong interference environment; In the circuit design with open circuit protection, overheating protection and other functions。
The instrument adopts a 5.6-inch color LCD, is clear and intuitive in Chinese and English, and is equipped with standard resistance, and accuracy self-test; The instrument has the advantages of wide range, large data storage, strong anti-interference ability, simple operation, handheld, small and portable, and can be selected printer for data printing.
Circuit resistance tester APP is the independent research and development of integration of measurement data records, management, generating report comprehensive information management function of APP and instrument use, GPS positioning function, upload field pictures, upload test data, generate data curve, report, etc., has the function of humanized engineering wizard, easy to use.
Convenient data uploading, processing, and export can greatly improve the work efficiency of inspection personnel.

Technical specifications

Function: Various contact resistance tests of high voltage switch and high voltage circuit breaker; metal welding member connection resistance test; metal conductor circuit resistance test and precision micro-European resistance test
Source: Built-in: 12.6V 9000mAh rechargeable lithium ba
Test mode: Four-line method
Charger: 12.6V/2A charger
Display mode: 5.6-inch industrial grade high brightness color LCD screen
Test interface: I + (positive current), I- (negative current), U + (positive voltage), U- (negative voltage)
Current output
- Rough shift position: ≤5A、10A、30A、50A、80A、100A
- Thin strip gear: Step value 2.5A, up to 59 current
Range (internal battery)
- ≤5A ： 1μΩ~3500mΩ
- 10A ： 0.1μΩ~200mΩ
- 30A： 0.1μΩ~20mΩ
- 50A： 0.01μΩ~15mΩ
- 80A： 0.01μΩ~10mΩ
- 100A： 0.01μΩ~5mΩ
Minimum: resolution 0.01μΩ
Test accuracy
- Current: 30A~100A ± (read 0.1% + range 0.2% + 1 μΩ)
- Current: 10A or 5A ± (read 0.5% + range 0.2% + 10 μΩ)
Testing time: Quick (recommended)、10s、20s、30s、40s、50s、60s
Printer: Yes (optional), press the print key to print the test results
Data storage: After the test, the data is automatically saved, storing 999 sets of data
Instrument size: About 188mm (long) 85mm (W) 312mm (high)
Packaging size: Approximately 550mm (long) 420mm (W) 215mm (height)
Quality: Instrument quality: about 2.2kg
P-wire
- Standard length: 3m (5m available)
- Current and voltage ends split test line, simple wiring, resistance less than 10m Ω
Data Removal: Select the format memory option to delete all data
Data access: Enter the data access interface, press the up and down the left and right keys to read the stored data
Data export: Bluetooth connection, Android APP export, export file is Excel
Cloud services: Android APP, Bluetooth connection; upload field pictures, upload test data, generate test report, generate data curve, test device sharing, data viewing at the same time
Auto shut off: When using the battery power supply, it will automatically shut down after about 15 minutes of no operation after starting up
Battery voltage: There is a battery power indication in the upper right corner of the instrument. When the symbol “ ” is displayed, then the battery power is exhausted, and the instrument will be automatically shut down. Please charge in time
Backlight: Backlight can be set to high, medium, and low brightness
Working current
- The operating current in the non-test state is 230 mA
- The operating current can be set itself in the test state
Circuit protection: With open-circuit protection, overheating protection, etc
Temperature protection: Temperature monitoring is equipped in the instrument
Working temperature: and -10℃ ~50℃; below 90% RH, no condensation

humidity

Store: temperature and humidity -10℃ ~60℃; below 70% RH
Charging: voltage 12.6V
Suitable for safety regulations
- IEC61010-1, CAT Ⅲ 600V, Pollution Grade 2, JJG724-1991
- Verification Procedure for DC Digital Ohms Table, JJG166-1993
- Verification Procedure for DC Resistor, DL / T967-2005 Verification
- Procedure for Circuit Resistance Tester and DC Resistance Rapid Tester