Portable Digital Multimeter MT20220

Introduction

Portable Digital Multimeter provides accurate electrical measurements with a 4½-digit, 22000-count true-RMS system for reliable testing. It features a 3.5-inch high-resolution TFT LCD screen with dual-parameter display for clear readings. Equipped with an STM32 chip and external double integral AD for stable and precise performance. Integrated multiple measurement functions with automatic or manual range switching and full-range overload protection. Our Portable Digital Multimeter is designed for electricians, engineers, laboratories, and educational institutions.

Applications

Portable Digital Multimeter is essential for various applications in research and laboratories, including electrical measurements, system diagnostics, and testing of various components.

Specifications

Display Type	3.5-inch TFT LCD
Display Resolution	320 × 480
Measurement Digits	4½ Digits
Count	22000 Counts
Measurement Type	True RMS
Measurement Rate	FAST (7 times/sec), MID (5 times/sec), SLOW (2 times/sec)
Basic DC Voltage Accuracy	0.05%
Measurement Functions	AC Voltage, DC Voltage, AC Current, DC Current
Resistance Measurement	Two-wire / Four-wire Resistance
Frequency Measurement	Period / Frequency
Additional Measurements	Diode Test, Continuity Test, Capacitance, Duty Cycle
Temperature Measurement	Thermocouple (K, N, R, S, T, B, E, J, WRe325, WRe526)
RTD Temperature Support	PT100, PT50, Cu100, Cu50
Range Switching Mode	Automatic / Manual
Trigger Mode	Automatic, Single, External (Optional)
Mathematical Functions	MX+B, MAX, MIN, dB, dBm, Rel, Comp Hi, Comp Low, Statistics
Data Functions	Data Hold, Data Record, Data Readback
Calibration	Open Calibration Function
Output Function	Square Wave Output (Optional)
Interface	USB Device
Communication Protocol	SCPI Supported
Protection	Full-Range Overload Protection
Language Settings	English
Power Supply	AC Powered
Packaging Dimensions (W×D×H)	270 × 310 × 110 mm
Gross Weight	3.8 kg

Features

Dual Parameter Display.

Multiple Measurement Functions.

Fast Measurement Response.

Data Hold and Record.

Mathematical Analysis Functions.

Key Lock Protection.

Open Calibration Capability.

Overload Protection System.

Language Configuration Support.

Clear TFT Screen Display.

FAQs

1. What is a portable digital multimeter?

It is a device used to measure voltage, current, and resistance in electrical circuits.

2. How do I measure voltage with a digital multimeter?

Set it to voltage mode, connect the probes, and read the value on the screen.

3. Can I check battery power with a portable digital multimeter?

Yes, by setting it to DC voltage mode, you can check if the battery has enough charge.

4. Is a portable digital multimeter easy to use?

Yes, it has a display screen and simple controls for quick measurements.

5. How do I keep my digital multimeter in good condition?

Store it in a dry place, replace the battery when needed, and clean the probes regularly.