VICTOR VC890C+/890D Digital Multimeter User Manual

1. Introduction

This manual provides detailed instructions for the safe and effective operation of your VICTOR VC890C+ or VC890D Digital Multimeter. These professional-grade multimeters offer precise measurement and quick reaction for various electrical parameters, making them ideal for electricians and DIY enthusiasts.

The VC890C+ model features a 5999 display count, NCV (Non-Contact Voltage) detection, zero line judgment, capacitance, frequency, temperature measurement, and tests for resistors, diodes, and transistors. The VC890D model shares many features but may have slight variations in measurement ranges and specific functions like temperature measurement (which is exclusive to the VC890C+).

Figure 1: VICTOR VC890C+ MAX Digital Multimeter Overview

2. Package Contents

Upon unpacking, please verify that all items listed below are present and in good condition:

• Digital Multimeter Host (VC890C+ or VC890D)
• Color Box
• AA Batteries (2x)
• Instruction Manual
• Product Certificate
• Test Leads (Test Pen)
• K-type Temperature Probe (-20~250°C) (Only available with VC890C+)

Figure 2: Product Packaging and Contents

3. Setup and Initial Use

3.1 Battery Installation

1. Locate the battery compartment on the back of the multimeter.
2. Open the battery cover.
3. Insert two AA batteries, ensuring correct polarity (+/-).
4. Close the battery cover securely.

3.2 Connecting Test Leads

• Insert the red test lead into the "VΩHz" or "mA/µA" or "20A" jack, depending on the measurement function.
• Insert the black test lead into the "COM" (common) jack.

3.3 Instrument Support Frame

The back of the instrument is designed with a support frame for easy placement and operation on a flat surface.

Figure 3: Multimeter Back with Support Frame

4. Operating Instructions

Before taking any measurements, ensure the test leads are correctly connected and the function knob is set to the desired measurement type.

4.1 Panel Overview

Figure 4: Multimeter Panel Technical Characteristics

1. Sound alarm indicator
2. LCD display
3. Transistor test port (hFE)
4. Data hold / backlight / function switching button
5. Relative value / flashlight button
6. Range knob
7. V~/Ω and other ports
8. mA/µA port
9. 20A port
10. COM (Common) port
11. Public port
12. Hanging hole
13. Flashlight
14. Table pen holder / bracket

4.2 Basic Measurements

• DC Voltage Measurement: Turn the range knob to the corresponding DC Voltage (V=) level. The maximum voltage that can be measured is 1000V.


Figure 5: DC Voltage Measurement

• AC Voltage Measurement: Turn the range knob to the corresponding AC Voltage (V~) level. The maximum voltage that can be measured is 750V.
• Frequency Measurement: When measuring AC Voltage, the multimeter can also display the frequency (40Hz~1kHz).

Video 1: Product Demonstration (VC890D)

• Resistance Measurement: Turn the range knob to the Ω position. Measure resistors up to 20MΩ.


Figure 6: Resistance Measurement

• Capacitance Measurement: Turn the range knob to the capacitance (F) mode. The maximum capacitor that can be measured is 20mF.


Figure 7: Capacitance Measurement

• Diode/Continuity Test: Turn the range knob to the diode/continuity symbol. The testing conditions are 0.4mA/3.5V.


Figure 8: Diode/Continuity Test

• Transistor (hFE) Measurement: Turn the range knob to the transistor mode. The display range for hFE is 0-1000.


Figure 9: Transistor Measurement

• NCV (Non-Contact Voltage) Measurement: The NCV function allows non-contact measurement of AC voltage. The sensor range is 48V-220V. The stronger the sensor voltage, the faster the indicator light flashes and beeps.


Figure 10: NCV Measurement

• Temperature Measurement (VC890C+ only): Turn the range knob to the temperature (°C/°F) mode. The measurement range is -20°C to 1000°C.


Figure 11: Temperature Measurement (VC890C+)

4.3 Special Functions

• Data Hold (HOLD): Press the "HOLD/BL SELECT" button to freeze the current reading on the display. Press again to release.
• Backlight (BL): Press and hold the "HOLD/BL SELECT" button to turn the backlight on/off.
• Relative Value (REL): Press the "REL" button to enter relative measurement mode. This subtracts the current reading from subsequent measurements.
• Flashlight: Press the flashlight button (often integrated with REL or a dedicated button) to turn on/off the built-in flashlight.
• Automatic Power Off (APO): The multimeter will automatically power off after approximately 15 minutes of inactivity to conserve battery life.
• Low Voltage Prompt: A battery symbol will appear on the display when the battery voltage is low, indicating that the batteries need to be replaced.

5. Maintenance

5.1 Battery Replacement

When the low battery indicator appears on the display, replace the AA batteries promptly to ensure accurate readings. Follow the battery installation steps in Section 3.1.

5.2 Fuse Replacement

The multimeter is equipped with intelligent anti-burning circuit protection, featuring built-in dual fuses. If a fuse blows due to overload, it must be replaced with a fuse of the correct specification:

• FS1: Φ5×20mm, 200mA, 250V
• FS2: Φ5×20mm, 20A, 250V

To replace a fuse, open the back casing of the multimeter (usually requires unscrewing) and carefully replace the blown fuse with a new one of the exact same rating.

Figure 12: Intelligent Anti-Burn Circuit Protection with Fuse Details

5.3 Cleaning and Storage

Clean the multimeter regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents. Store the device in a cool, dry place within the specified storage environment of -20°C to 60°C and <85% RH.

6. Troubleshooting

• No Display/Faint Display: Check battery levels and replace if necessary. Ensure batteries are installed with correct polarity.
• "OL" on Display: This indicates an overload or that the measured value is out of the selected range. Switch to a higher range or verify the circuit.
• Inaccurate Readings: Ensure test leads are properly connected and making good contact. Check battery levels. Verify the correct function and range are selected.
• No NCV Indication: Ensure the NCV function is selected and the multimeter is held close enough to the AC voltage source.

7. Specifications

Figure 13: Detailed Product Specifications

Special Features:

• Display Mode: LCD display
• Maximum Display: 1999 (3 1/2 digits)
• Measurement Method: AD conversion measurement
• Sampling Rate: 3 times/second
• Super Scale Prompt: "OL"
• Low Voltage Prompt: Battery symbol display
• Working Environment: 0-40°C, <75%RH
• Storage Environment: -20-60°C, <85%RH
• Power Supply: Two AA batteries
• Volume: 178*86*52mm
• Weight: About 335g
• Additional Features: Automatic shutdown, Data hold, Sound alarm, Flashlight, Backlight display, NCV, Turn off buzzer, Diode, Transistor.

8. User Tips

• For measurements in dimly lit areas, utilize the built-in backlight feature by pressing and holding the "HOLD/BL SELECT" button.
• When working on a workbench, extend the instrument's support frame for stable and convenient viewing.
• If the display shows "OL" during a measurement, it means the value is outside the current range. Try switching to a higher measurement range if available, or confirm the circuit is within the meter's capabilities.
• Always ensure the test leads are securely plugged into the correct input jacks for the desired measurement to prevent damage to the meter or inaccurate readings.

9. Warranty and Support

For any issues, questions, or technical support regarding your VICTOR VC890C+/890D Digital Multimeter, please contact the seller or manufacturer directly. Keep your purchase receipt and product certificate for warranty claims.