Victor 6310B DC Resistance Meter User Manual

1. Introduction

The Victor 6310B Series Digital DC low resistance meter, also known as a micro-ohmmeter or ohmmeter, is an equipotential tester utilizing microprocessor technology and a four-wire test method for high safety, precision, and reliability. It is primarily designed to measure the wire resistance of cables, contact resistance of switches, connectors, relays, resistance of coils, motors, transformer windings, and equipment enclosures. It also performs connection resistance tests between metal components in various applications.

This instrument is widely used in telecommunications, electric power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, and factory grounding grids. The 6310B meter features a large-screen LCD for clear display, port overload prevention, and storage for 500 sets of data. Its resistance measurement range is from 0.001mΩ to 300.0KΩ. The accompanying PC software allows for historical data reading, consulting, saving, and reporting.

Front view of the Victor 6310B DC Low Resistance Meter highlighting key features like resistance range, four-wire testing, micro USB, white backlight, low pressure tips, HD large screen, data storage, over-range prompt, and automatic shut-down.

2. Safety Rules and Precautions

Thank you for purchasing our company's DC low resistance meter. To ensure proper use and safety, please:

• Read this user manual in detail.
• Strictly follow all safety rules and precautions listed herein.
• Always pay special attention to safety when using this tester.
• Do not measure live objects. Before measuring, ensure the resistance or metal body is not charged to avoid instrument damage or electric shock.
• Charge the battery promptly when the low voltage symbol appears (5-8 hours per charge).
• If the meter is unused for an extended period, charge the battery every 1-2 months.
• Discontinue use if the test wire is broken or metal is exposed.
• Avoid placing or storing the tester in high temperature, high humidity, or direct sunlight.
• Maintain precision instruments regularly. Keep the body and test lines clean and avoid dropping the instrument.
• Only authorized personnel should perform use, disassembly, and maintenance of this tester.
• If the tester becomes unsafe to use, stop immediately, seal it, and have it handled by an authorized organization.
• Observe all 'hazard signs on the tester and in this manual.

3. Product Overview

3.1. Key Features

• Resistance Range: 0.001mΩ to 300.0KΩ
• Test Method: Four-wire method for high accuracy
• Communication: Micro USB for data transfer and external power
• Display: HD large screen with white backlight for visibility in various conditions
• Data Storage: 500 sets of measurement data
• Safety Features: Low pressure tips, over-range prompt, overvoltage protection, automatic shut-down after 15 minutes of inactivity
• Construction: Multi-layer protection against shock and falling with a removable protective cover
• Power: Rechargeable DC 3.7V 2000mAh high-capacity lithium battery

Graphic highlighting excellent design with multiple auxiliary functions: USB function, automatic shutdown, overflow display, low voltage prompt, large screen display, overvoltage protection, data retrieval, and backlight display.

3.2. Instrument Components

Labeled diagram of the Victor 6310B showing function selection, backlight button, menu keys (MODE, HOLD, MEM), data retention key, and power switch.

• Function Selection: Button to cycle through measurement modes.
• Backlight Button: Activates/deactivates the display backlight.
• Menu Keys (MODE, HOLD, MEM): For mode selection, data hold, and memory functions.
• Data Retention Key: Used to save or recall data.
• Power Switch: Turns the device on/off.
• DC/USB Port: For external power supply and data transfer.
• Test Lead Ports: Four ports for connecting the test leads (C1, C2, P1, P2).

Close-up of the Victor 6310B's side showing the DC/USB port for external power supply and data transfer.

4. Setup

4.1. Power Supply and Charging

The Victor 6310B is powered by a built-in DC 3.7V 2000mAh rechargeable lithium battery. A charger and USB data cable are included in the package.

• Initial Charge: For optimal performance, fully charge the device for 5 to 8 hours before first use.
• Charging Indication: When charging, the charger's red light is on. It turns green when fully charged.
• Low Battery: If the LCD displays the low battery voltage symbol (a battery icon with low bars), charge the battery promptly. Adequate battery power ensures measurement accuracy.
• Long-term Storage: If the device is left unused for a long time, charge the battery every 1 to 2 months to maintain battery health.
• Charger: Always use the original charger for charging. Fast charging is not supported.

4.2. Test Lead Connection

The Victor 6310B uses a four-wire test method. Connect the red and black test leads to the corresponding C1, C2, P1, P2 ports on the instrument. Ensure secure connections for accurate measurements.

5. Operating Instructions

5.1. Switch On/Off

Press the POWER button to switch the machine on. Upon power-on, 'APO' will be displayed in the lower corner, indicating that the automatic power-off function is active (device will power off after 15 minutes of inactivity).

5.2. Resistance Precision Test

After power on, connect the test leads to the object as shown in the diagrams below. Ensure the insulating layer and oxide layer are removed from the tested object's surface. Live testing is not allowed.

• Test Clip Maintenance: Oxidized test clips can affect readings. Clean any oxide or foreign matter from the clips regularly.
• Reliable Connection: Ensure reliable connections between the test line, detector, and the object under test.
• Component Heating: To avoid errors from component heating, limit test time to under 30 seconds, with a 30-second interval between tests for more accurate results.
• Over-range Indication ('OL'): If 'OL' is displayed, the resistance exceeds the range. Restart the meter and retest. If caused by overvoltage protection (meaning the measured resistance is charged), immediately cut off the resistance and retest after restarting.

Diagram illustrating the connection for a four-wire resistance test using the Victor 6310B.

Diagram showing the connection for measuring resistance between a meter box and ground using the Victor 6310B.

Diagram illustrating the connection for measuring resistance between two metal connectors using the Victor 6310B.

Diagram illustrating the connection for measuring the contact point resistance of a relay using the Victor 6310B.

5.3. Backlight Control

After booting, press the backlight button (sun icon) to turn the backlight on or off. The backlight is useful in dim places. The default backlight setting is off each time the device is powered on.

5.4. Data Lock/Storage

After a measurement is completed:

• Press HOLD to lock the currently displayed data.
• Press MEM to automatically number and store the current data.
• If storage is full, the meter will display 'FULL'.
• To display latched data, press HOLD.

5.5. Data Access/Delete

After measurement:

• Press MODE to switch to data access mode. 'MR' will be displayed.
• Use the arrow keys (up/down) to navigate through stored data groups (1 group or 10 groups at a time).
• Press MODE twice to exit this mode.
• To delete data, enter data access mode, press MODE again to enter delete mode. Select 'YES' to delete or 'NO' to cancel.
• If no data is stored, the LCD will display 'NULL'.

5.6. Data Upload

Connect the instrument to a computer using the micro USB communication line. Turn on the instrument and run the host computer software. If the USB connection is successful, you can read, upload, and save stored historical data. The software also provides functions for historical data reading, consulting, and saving.

5.7. Line Resistance Calibration (Removal of Residual Resistance)

To calibrate the line resistance:

1. Short-circuit the two clips of the test leads.
2. Wait for the displayed value to stabilize.
3. Press the HOLD button for 2 to 3 seconds to complete the calibration.

Diagram illustrating the setup for line resistance calibration.

6. Maintenance

• Cleaning: Keep the instrument body and test leads clean. Use a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place, away from direct sunlight, high temperatures, and high humidity.
• Handling: Avoid dropping the instrument or subjecting it to strong impacts.
• Battery Care: Follow charging guidelines to prolong battery life.
• Service: All repairs and maintenance should be performed by qualified service personnel. Unauthorized disassembly may void the warranty and cause damage.

7. Troubleshooting

• 'OL' Displayed: This indicates that the measured resistance exceeds the instrument's range. Restart the meter and retest. If the issue persists, check if the object is charged (overvoltage protection) and ensure it is disconnected from power before retesting. Also, verify that the test leads are in good contact and not broken.
• Inaccurate Readings: Ensure test clips are clean, connections are secure, and the battery is adequately charged. Allow components to cool between tests if heating is suspected.
• Device Not Turning On: Check battery charge. If fully charged and still not turning on, contact support.

8. Specifications

Technical parameter table for models 6310B and 6310A, detailing resistance range, accuracy, resolving power, data storage, USB interface, backlight, low battery display, overvoltage protection, test method, test current, open circuit voltage, power, measurement time, over range prompt, automatic shutdown, and power supply.

9. User Tips

• Accuracy: Users have noted the device measures accurately, providing reliable readings for small resistances.
• Constant Current: The device uses a constant current measurement mode, which is important to note for specific testing requirements.
• Portability: With compact dimensions of 187*119*50mm, the meter is easy to handle and transport.
• Data Management: The ability to store 500 sets of data is useful for tracking measurements over time or for multiple tests.
• Battery Life: Monitor battery charge, especially during extended use, as accuracy can be affected by low voltage.

10. Warranty and Support

10.1. Warranty & Guarantee

• We offer 100% genuine original RuoShui (Victor) instruments.
• 1 Year warranty for all of our products. (Excluding items damaged and/or misused after receipt. Accessories come with a 3-month warranty.)
• We will bear the shipping cost if the product is not as advertised, otherwise, the buyer shall pay the shipping cost.
• Defective items must be reported and returned within the warranty period (and in the original packaging, if possible).

10.2. Other Terms & Conditions

• If there is any problem with your order, please contact us first; we will try our best to give you the best solution. Please don't give negative feedback before contacting us, as that won't help to solve your problem.
• No battery will be sent with the product due to safety reasons (Note: This may vary by region/shipping method; typically, batteries are included as per product specifications).
• We are not responsible for any custom duty or import tax.

The contents of this user manual cannot be used as a reason to use the product for special purposes. The company is not responsible for other losses caused by the use. The company reserves the right to modify the contents of the user manual. Any changes will be made without further notice.

11. Accessories

Image showing the standard accessories included with the Victor 6310B: main engine, outer packaging box, cloth bag, certificate of conformity manual, software CD, stylus, and charger/data cable.

12. Manufacturing Process (Video)