1. Introduction
This user manual provides detailed instructions for the safe and effective operation of the FeelTech NCV Multimeter Digital MC618C. This professional auto-range multimeter is designed for measuring AC/DC voltage, current, resistance, capacitance, frequency, temperature, and features NCV (Non-Contact Voltage) detection and firewire detection. It is equipped with protection against burn and a positive display VALCD screen for clear readings.
2. Key Features
- NCV Multimeter Digital with 10000 counts for high precision measurements.
- AC/DC Voltage Meter with protection against burn.
- Firewire detection: Single probe contact for live wire identification.
- Audible alarm ("beep") for incorrect probe cable insertion and blown fuse alarm function.
- Positive display VALCD screen with analog bar display and digital dual display.
- T-RMS (True Root Mean Square) for accurate readings of non-sinusoidal waveforms.
- 99.99mF Capacitance measurement.
- NCV non-contact AC voltage test for safety.
- On-off buzzer test for continuity.
- Data Hold function to freeze readings.
- Manual and Auto Range selection.
- Built-in Flashlight and Backlight for use in low-light conditions.
- Temperature probe measurement.
- Diode test function.
- Anti-collapse bracket for stable positioning.
- Drop-proof protective sleeve made of high-strength ABS engineering material.
- Automatic shut-down after 15 minutes of inactivity to save battery.
Figure 2.1: Overview of the FeelTech MC618C Multimeter and its key features, including 10000 counts, AC/DC voltage, NCV, resistance, data hold, flashlight, backlight, True RMS, capacitance, frequency, diode, AC current, temperature probe, ambient temperature, fire line distinguish, and auto/manual range.
3. Setup and Initial Operation
3.1. Unpacking
Carefully remove the multimeter and all accessories from the packaging. Verify that all components listed in the "What's in the Box" section are present.
- FeelTech MC618C Multimeter
- Test Leads (Red and Black)
- Temperature Probe (K-type thermocouple)
- User Manual
3.2. Battery Installation
The multimeter requires batteries for operation. Locate the battery compartment on the rear of the device. Use a screwdriver to open the compartment cover, insert the batteries according to the polarity indicators, and then securely close the cover.
3.3. Connecting Test Leads
For most measurements, connect the black test lead to the "COM" (Common) input jack and the red test lead to the "VΩmA" input jack. For high current measurements (10A), connect the red test lead to the "10A" input jack.
Figure 3.1: The multimeter's "LEAD" display and buzzer alarm indicating incorrect probe cable insertion. Always ensure test leads are connected to the correct input jacks for the selected function to prevent damage and ensure accurate readings.
4. Operating Instructions
Before operating, ensure the multimeter is in good condition and the test leads are properly connected. Always select the appropriate function and range before making a measurement.
4.1. Power On/Off
Rotate the rotary switch from the "OFF" position to any desired measurement function to power on the device. To power off, rotate the switch back to the "OFF" position. The device also features an automatic shut-down function after 15 minutes of inactivity.
4.2. AC/DC Voltage Measurement (V~)
- Set the rotary switch to the "V~" position for AC voltage or "V-" for DC voltage.
- Connect the test leads in parallel to the circuit or component under test.
- Read the voltage value on the display.
4.3. V.F.C. Variable Frequency Voltage Measurement
During AC voltage measurement, press the "V.F.C." button to activate the variable frequency voltage measurement mode. This is useful for measuring voltage in circuits with variable frequency drives.
Figure 4.1: The multimeter's display showing V.F.C. mode activated for variable frequency voltage measurement. This function is engaged by pressing the "V.F.C." button during AC voltage measurement.
4.4. Resistance Measurement (Ω)
- Set the rotary switch to the "Ω" position.
- Ensure the circuit is de-energized before measuring resistance.
- Connect the test leads across the component.
- Read the resistance value on the display.
4.5. Capacitance Measurement (mF)
- Set the rotary switch to the "mF" position.
- Ensure the capacitor is fully discharged before measurement to prevent damage to the multimeter.
- Connect the test leads across the capacitor terminals.
- Read the capacitance value on the display.
Figure 4.2: The multimeter displaying a capacitance measurement. The device supports up to 99.99mF capacitance measurement and can be used with capacitance pen probes.
4.6. NCV (Non-Contact Voltage) Measurement
- Set the rotary switch to the "NCV" position.
- Move the top end of the multimeter close to the AC voltage source (e.g., a live wire or outlet).
- The device will indicate the presence of AC voltage through an audible beep and visual indicator (green for weak signal, red for strong signal).
Figure 4.3: The multimeter performing an NCV (Non-Contact Voltage) test. The display shows "--L" for a weak current signal (green indicator) and "--H" for a strong current signal (red indicator and buzzer alarm).
Figure 4.4: The multimeter's NCV function in use, detecting a live wire in an electrical outlet. The display shows "LIVE" indicating the presence of AC voltage.
4.7. Temperature Measurement (°C/°F)
- Set the rotary switch to the "Temp" position.
- Connect the temperature probe (K-type thermocouple) to the appropriate input jacks.
- Place the probe tip on or near the object whose temperature is to be measured.
- Read the temperature value on the display.
Note: The complimentary temperature probe can only measure up to 300°C. For higher temperatures, a professional temperature probe is required.
Figure 4.5: The multimeter displaying a temperature reading, with the temperature probe immersed in a liquid. The device supports temperature measurements in the range of -20°C to 1000°C.
4.8. Data Hold Function
Press the "HOLD" button to freeze the current reading on the display. Press it again to release the hold function and resume live readings.
4.9. Backlight and Flashlight
Press the backlight/flashlight button to turn on the display backlight for better visibility in dim conditions. Press and hold the button to activate the built-in flashlight.
4.10. Auto/Manual Range
The multimeter supports both auto-ranging and manual ranging. In auto-range mode, the meter automatically selects the best range for the measurement. Press the "RANGE" or "SEL" button (depending on model) to switch to manual ranging and cycle through available ranges.
5. Maintenance
5.1. Cleaning
Wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Keep the input terminals clean and free from dust or debris.
5.2. Battery Replacement
When the battery indicator appears on the display, replace the batteries immediately to ensure accurate readings. Refer to section 3.2 for battery installation instructions.
5.3. Fuse Replacement
If the multimeter fails to measure current or shows an "FUSE" indicator, the fuse may be blown. Refer to the internal diagram for fuse specifications and replace with a fuse of the same type and rating. Always disconnect test leads and power off the device before opening the case.
Figure 5.1: Detailed view of the multimeter's precision industrial circuit board with neat wiring and firm solder joints, along with its anti-collapse bracket and drop-proof protective sleeve. These features contribute to the device's durability and ease of use.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or dim display | Low battery; Device off | Replace batteries; Turn on the device by rotating the switch. |
| "LEAD" displayed with alarm | Incorrect probe cable insertion | Ensure test leads are connected to the correct input jacks for the selected function. |
| No current measurement | Blown fuse | Replace the fuse (refer to Maintenance section). |
| Inaccurate readings | Low battery; Incorrect range; Environmental interference | Replace batteries; Select appropriate range (Auto or Manual); Move away from strong electromagnetic fields. |
| Multimeter automatically shuts down | Automatic shut-down feature activated | This is normal. Press any button or rotate the switch to reactivate. |
7. Specifications
| Parameter | Value |
|---|---|
| Model Number | EC-Mileseey-MC618C |
| Display Counts | 10000 Counts |
| True RMS | Yes |
| AC/DC Voltage | Supported |
| NCV (Non-Contact Voltage) | Yes |
| Capacitance | Up to 99.99mF |
| Temperature Range | -20°C to 1000°C (with appropriate probe) |
| Firewire Detection | Yes |
| Protection Against Burn | Yes |
| Automatic Shut-down | After 15 minutes of inactivity |
| Package Dimensions | 11.81 x 9.84 x 7.87 inches |
| Item Weight | 1 Kilograms (2.2 Pounds) |
| Manufacturer | Shenzhen Mileseey TECHNOLOGY CO., LTD |
| Certifications | CE, RoHS |
8. Warranty and Support
The FeelTech NCV Multimeter Digital MC618C is manufactured by Shenzhen Mileseey TECHNOLOGY CO., LTD. The product has an EU Spare Part Availability Duration of 1 Year.
For warranty claims, technical support, or service inquiries, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.
For additional support, you may visit the FeelTech brand page on Amazon: FeelTech Store
