1. Introduction
The multicomp PRO MP730026 is a 5/6 bit resolution handheld digital multimeter designed for precise electrical measurements. It features Bluetooth connectivity (BLE 4.0), a built-in data logger, thermometer function, and a non-contact voltage (NCV) detector. This device offers a 6000 count display and a 20A current measuring capacity, making it suitable for a wide range of applications. It is compatible with Android, iOS, and Windows operating systems for enhanced data management.
Key Features:
- Smart digital multimeter with BLE 4.0 Bluetooth connectivity for wireless data transmission.
- True RMS measurement capability for accurate readings on non-sinusoidal waveforms.
- Integrated data logger and thermometer functions, including an offline record feature.
- Safety compliant with 1000V CATIII and 600V CATIV standards.
- Supports Android, iOS, and Windows platforms for data analysis and control.
- Non-Contact Voltage (NCV) detection for enhanced safety.
2. Safety Information
Warning: To avoid electrical shock or personal injury, please read and understand all instructions and safety information before using this multimeter.
- Always ensure the test leads are in good condition and properly connected before making any measurements.
- Do not apply more than the rated voltage, as marked on the meter, between the terminals or between any terminal and earth ground.
- Use caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. These voltages pose a shock hazard.
- Before opening the case, disconnect the test leads from all live circuits and remove the battery.
- Replace the battery as soon as the low battery indicator appears to ensure accurate readings.
- Do not operate the meter if it appears damaged or if the case is open.
- Always use the proper function and range for your measurement.
- Adhere to local and national safety codes.
Figure 2.1: Rear view of the multimeter, displaying important safety warnings regarding case opening and fuse replacement. It also shows the battery compartment cover.
3. Package Contents
Verify that all items listed below are present and undamaged. If any item is missing or damaged, contact your supplier.
- multicomp PRO MP730026 Digital Multimeter
- Test Leads (one red, one black)
- 9V Battery (for initial use)
- User Manual (this document)
- K-type Thermocouple (for temperature measurements)
- Bolt Driver (for battery compartment)
- Alligator Clip (optional accessory, may vary by package)
4. Product Overview
The following images illustrate the main components and controls of the MP730026 Digital Multimeter.
Figure 4.1: Front view of the multicomp PRO MP730026 Digital Multimeter, showing the LCD display, function buttons (Select, Range, True RMS, Hz/Duty), and the central rotary dial for function selection. Input jacks are visible at the bottom.
Figure 4.2: Angled view of the multimeter, highlighting its ergonomic design and the kickstand on the back for hands-free operation.
5. Setup
5.1 Battery Installation
The multimeter requires a 9V battery for operation.
- Ensure the multimeter is turned OFF and disconnect all test leads from the input terminals.
- Locate the battery compartment cover on the back of the meter (refer to Figure 2.1).
- Use the provided bolt driver or a suitable screwdriver to loosen the screw securing the battery cover.
- Remove the battery cover.
- Connect a 9V battery to the battery clip, observing correct polarity.
- Place the battery into the compartment and replace the cover, securing it with the screw.
5.2 Connecting Test Leads
Always connect the black test lead to the COM (common) jack. Connect the red test lead to the appropriate input jack based on the measurement type:
- VΩHz-+: For Voltage, Resistance, Frequency, Diode, Capacitance, and Continuity measurements.
- mAµA: For milliampere and microampere current measurements.
- 20A: For high current measurements up to 20 Amperes.
6. Operating Instructions
This section provides general instructions for using the multimeter's various functions. Always refer to the specific measurement requirements and safety precautions for your task.
6.1 Basic Measurements (Voltage, Current, Resistance)
- Turn the rotary dial to the desired measurement function (e.g., V~ for AC Voltage, V- for DC Voltage, Ω for Resistance).
- Connect the test leads to the appropriate input jacks (COM and VΩHz-+ for voltage/resistance, mAµA or 20A for current).
- Connect the test probes to the circuit or component under test.
- Read the measurement value on the LCD display.
- Use the RANGE button to switch between auto-ranging and manual ranging, if desired.
- Press the SELECT button to toggle between different sub-functions within a single rotary dial position (e.g., AC/DC voltage, resistance/continuity/diode).
6.2 Bluetooth Connectivity (BLE 4.0)
The MP730026 can connect wirelessly to Android, iOS, and Windows devices for real-time data monitoring and logging.
- Download and install the dedicated application for your smartphone or PC (search for "multicomp PRO multimeter" or refer to the product page for app links).
- Ensure Bluetooth is enabled on your device.
- Turn on the multimeter. The Bluetooth icon on the display will blink, indicating it's ready to pair.
- Open the application on your device and follow the on-screen instructions to search for and connect to the MP730026.
- Once connected, the Bluetooth icon on the multimeter's display will become solid.
- You can now view live measurements, log data, and analyze trends through the application.
6.3 Data Logger Function
The built-in data logger allows for recording measurements over time, even offline.
- When connected via Bluetooth, the application provides advanced data logging features, including setting intervals and exporting data.
- The multimeter also supports an offline record function. Consult the detailed manual within the application or the full product documentation for specific steps on activating and retrieving offline logs.
6.4 Thermometer Function
To measure temperature:
- Turn the rotary dial to the °C/°F position.
- Connect the K-type thermocouple to the appropriate input jacks (usually VΩHz-+ and COM, observing polarity if indicated).
- Place the thermocouple probe on or near the object whose temperature you wish to measure.
- The temperature will be displayed in Celsius or Fahrenheit. Use the SELECT button to switch between units.
6.5 Non-Contact Voltage (NCV) Detection
The NCV function allows for detecting the presence of AC voltage without direct contact.
- Turn the rotary dial to the NCV position.
- Move the top front part of the multimeter close to the conductor or outlet you suspect has AC voltage.
- The meter will emit an audible beep and/or flash an LED indicator, with the intensity increasing as it gets closer to the voltage source.
7. Maintenance
Proper maintenance ensures the longevity and accuracy of your multimeter.
- Cleaning: Wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
- Battery Replacement: Replace the 9V battery when the low battery indicator appears on the display. Refer to Section 5.1 for instructions.
- Fuse Replacement: If the current measurement functions stop working, the fuse may need replacement. This should only be performed by qualified personnel. Ensure the replacement fuse matches the specified type and rating (e.g., Fused 20A, Fused mA/µA). Always disconnect test leads and power before opening the case.
- Storage: If the meter is not used for an extended period, remove the battery to prevent leakage. Store the meter in a cool, dry place.
8. Troubleshooting
This section addresses common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Meter does not power on. | Dead or incorrectly installed battery. | Check battery polarity, replace battery. |
| No reading or "OL" (Overload) displayed. | Incorrect range, open circuit, or measurement exceeds meter's capacity. | Select appropriate range, check circuit continuity, ensure measurement is within specifications. |
| Inaccurate readings. | Low battery, incorrect function/range, environmental factors. | Replace battery, verify function/range, ensure stable environment. |
| Current measurement not working. | Blown fuse. | Replace the fuse (refer to Maintenance section). |
| Bluetooth connection issues. | Bluetooth off on device, app not installed, meter not in pairing mode. | Ensure Bluetooth is on, install app, restart meter, try pairing again. |
9. Specifications
9.1 General Characteristics
| Parameter | Value |
|---|---|
| Bluetooth Module | BLE 4.0 |
| True RMS | Yes |
| Diode Test | Yes |
| Auto Power-off | Yes |
| On-off Warning | Yes |
| Low-battery Indicator | Yes |
| Data Hold | Yes |
| Relative Measurement | Yes |
| Flashlight | Yes |
| Auto Ranging | Yes |
| LCD Backlight | Yes |
| Automatic-manual Range Selection | Yes |
| Input Protection | Yes |
| Input Impedance | ≥10MΩ |
| Safety Compliance | 600V CATIV, 1000V CATIII |
| NCV | Yes |
| Dimension (W×H×D) | 196mm × 88.5mm × 56mm |
| Weight (without package) | 0.3kg |
| Standard Accessories Included | Multimeter Lead, K-type Thermocouple, Manual, Bolt Driver, Alligator Clip |
| Optional Accessories | 9V Battery (Note: one is included for initial use) |
| Warranty | 12 months |
9.2 Performance Specifications
| Parameters | Measurement Range | Resolution | Accuracy |
|---|---|---|---|
| DC Voltage | 60.00mV / 600.0mV (EU) | 0.01mV | ±(0.5%+2 dig) |
| 600.0mV / 6.000V / 60.00V / 600.0V | 0.1mV | ±(0.8%+2 dig) | |
| 1000V | 1V | ±(0.8%+2 dig) | |
| ±(1%+3 dig) | |||
| AC Voltage | 6.000V / 60.00V / 600.0V | 1mV | ±(0.8%+3 dig) |
| 750V | 1V | ±(1%+3 dig) | |
| DC Current | 60.00µA / 600.0µA | 0.01µA | ±(0.8%+2 dig) |
| 60.00mA / 600.0mA | 0.01mA | ±(1.2%+3 dig) | |
| 20.00A | 0.01A | ±(1.5%+3 dig) | |
| AC Current | 60.00µA / 600.0µA | 0.01µA | ±(1%+3 dig) |
| 60.00mA / 600.0mA | 0.01mA | ±(1.5%+3 dig) | |
| 20.00A | 0.01A | ±(1.5%+3 dig) | |
| Resistance | 600.0Ω / 6.000kΩ / 60.00kΩ / 600.0kΩ / 6.000MΩ | 0.1Ω | ±(0.8%+2 dig) |
| 60.00MΩ | 0.01MΩ | ±(2.5%+3 dig) | |
| Capacitance | 60.00nF / 600.0nF / 6.000µF / 60.00µF | 0.01nF | ±(2.5%+3 dig) |
| 600.0µF / 6.000mF / 60.00mF | 0.1µF | ±(3%+5 dig) | |
| Frequency | 9.999Hz / 99.99Hz / 999.9Hz / 9.999kHz / 99.99kHz / 9.999MHz | 0.001Hz | ±(0.8%+2 dig) |
| Duty Ratio | 0.1% - 99.9% (typical value: Vrms=1V, f=1kHz) | 0.1% | ±(1.2%+3 dig) |
| 0.1% - 99.9% (≥1kHz) | ±(2.5%+3 dig) | ||
| Temperature (°C/°F) | -50°C to +400°C | 1°C | ±(2.5%+3 dig) |
| -58°F to +752°F | 1°F | ±(4.5%+5 dig) |
10. Warranty and Support
The multicomp PRO MP730026 Digital Multimeter comes with a 12-month warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, unauthorized modification, accident, or neglect.
For technical support, warranty claims, or service inquiries, please contact your authorized multicomp PRO distributor or refer to the official multicomp PRO website for contact information. Please have your model number (MP730026) and proof of purchase ready when contacting support.