UT61D+ 1000V True RMS Digital Multimeter 40Hz-1kHz

1.True RMS (True Effective Value) core measurement accurately analyzes nonlinear distortion waveforms from inverters, UPS systems, motors, and other components.
2.Dual security levels.
3.LoZ low-impedance input to eliminate power frequency phantom voltage, 20A ultra-large current range (the older UT61D only had 10A),60mF ultra-large capacitance.
4.NCV non-contact sound and light test, non-contact induction AC electric field, intensity graded buzzer + screen bar prompt.
5.Dual-mode data communication; standard USB wired automatic sensing communication.
6.User-friendly large-screen operation: 6000-digit LCD white backlit screen with 31 analog bars synchronously displaying fluctuations.
7.Durable ergonomic body with red and black flame-retardant ABS non-slip shell and integrated back support; lightweight body, drop-resistant.
8.Low battery reminder + 15-minute automatic shutdown power-saving design.
9. No need to switch gears, significantly improving the debugging efficiency of frequency converter and pulse circuits.
The UT61+ is UNI-T's new generation of mid-to-high-end professional multimeter series.
Product Description

The UT61D+ 1000V True RMS Digital Multimeter 40Hz-1kHz is UNI-T's newly upgraded UT61+ series all-around professional true RMS multimeter, positioned as a mainstay model for comprehensive industrial maintenance. It features a 6000-digit high-definition counter and represents a comprehensive upgrade over the older UT61D in terms of current range, anti-interference capabilities, communication, and peak capture. Suitable for factory automation maintenance, inverter equipment repair, new energy installation, electromechanical debugging, precision appliance repair, and university laboratories, it boasts high safety protection against CAT III 1000V and CAT IV 600V. Standard features include LoZ low impedance, Peak hold, 20A high current capacity, and USB wired communication. An optional Bluetooth wireless module is also available. Balancing high-precision measurement, strong environmental adaptability, and digital data acquisition, it is a benchmark product in the mid-range all-around professional electrical instrumentation market.

Product Description from the Supplier

Xi'an Mingxi Taida Information Technology Co., Ltd. brings over 12 years of industry expertise to deliver cutting-edge measurement and control solutions.With progressed computerization forms and strict quality control, we guarantee each item meets the most noteworthy guidelines for proficient applications.

Description

The UT61D+ 1000V True RMS Digital Multimeter 40Hz-1kHz  is the mid-range model representing the pinnacle of the series' comprehensive functionality, positioned between the standard B+ and high-precision E+ models. It boasts stable accuracy, the most comprehensive measurement capabilities, and full ranges for current, capacitance, and temperature measurement.

It targets industrial technicians, equipment maintenance workers, and new energy installation technicians who require measurements across various scenarios but don't necessarily need ultra-high digit counts.

The original UT61D had several drawbacks, including a maximum current of 10A, lack of peak current measurement, the need for additional Bluetooth modification, and reading drift due to virtual voltage interference. With the widespread adoption of new energy, servo frequency converters, and energy storage equipment, the field frequently encounters instantaneous high-inrush currents, induced virtual currents, instantaneous peak faults, and the need for long-term data traceability.

UNI-T has restructured the circuit protection and sampling unit, upgrading to the UT61D+ Digital Multimeter : expanding current capacity to 20A, adding LoZ and Peak current measurement, standardized USB with optional Bluetooth, optimized temperature measurement resolution and anti-interference capabilities, balancing performance, price, and durability, and replacing the older UT61D as the main all-around instrument for tooling.

Specifications

Item Parameters
Display Count 6000 digits (5999 maximum reading)
Display Screen LCD white backlit display, 31 analog bars
True RMS Bandwidth 40Hz~1kHz
Safety Rating CAT III 1000V / CAT IV 600V
Maximum Current single short-time measurement
Communication Configuration Standard USB; Optional UT-D07B Bluetooth module
Power Supply Approx.182×86×41mm
Weight Approx. 690g (including batteries)
Shell Material Flame-retardant dual-color ABS engineering plastic, anti-slip and drop-resistant
Operating Temperature and Humidity 0℃~40℃, Relative Humidity ≤75% RH (non-condensing)
Storage Temperature and Humidity -10℃~50℃, Relative Humidity ≤80% RH
International Certifications CE,UKCA,cETLus,RoHS Environmental Certifications
Sampling Rate Approx. 3 times/second
Automatic Power-Off Delay Automatic power-off after 15 minutes of inactivity

Functions of The UT61D+ 1000V True RMS Digital Multimeter 40Hz-1kHz

Basic Electrical Measurement

• DCV: 60mV~1000V, compatible with power supplies, control circuits, and battery testing.

• ACV, True RMS: 60mV~1000V, for mains power, inverter output, and industrial AC circuits.

• DCA: 600μA~20A, for load DC current and controller circuit current.

• ACA, True RMS: 600μA~20A, for motors, inverters, and AC load current.

• Resistance (Ω): 600Ω~60MΩ, for component resistance and line impedance measurement.

• Continuity/Short Circuit Beep: <50Ω continuous beep for quick open/short circuit detection.

• Diode Test: 0~1.999V forward voltage drop, for determining PN junction condition.

Advanced Measurement

• Capacitor C: 60nF~60mF, for troubleshooting switching power supplies, energy storage, and high-power filter capacitors.

• Frequency Hz: 10Hz~10MHz, for industrial control pulses, frequency converter carrier signals, and speed signals; AC/AC ranges can be read synchronously online.

• Duty Cycle: 0.1%~99.9%, for PWM speed control and pulse control circuit debugging.

• K-type Thermocouple Temperature Measurement: -40℃~1000℃, for measuring the temperature of equipment housings, motor windings, and heating elements.

UT61D+ multimeter-temperature-xi1-1

Caution: The LCD displays “OL” when the meter is turned on, the measured temperature should be less than 230°C/446°F, (°F = °C × 1.8 + 32).

• LoZ Low Impedance AC Voltage: Eliminates induced false voltages, accurately measuring true voltage over low-voltage and long-distance cables.

• Peak Hold: Captures millisecond-level instantaneous impulse voltage/current, troubleshooting lightning strikes and startup surge faults.

Intelligent Assisted Safety and Data

• NCV Non-Contact Voltage Detection: >100V AC electric field audible and visual graded alarm

• MAX/MIN Extreme Value Recording: Automatically stores the maximum and minimum values throughout the measurement range

• REL Relative Measurement: Offsets probe line resistance and initial offset, enabling high-precision measurement of minute differences

• HOLD Data Lock: Fixes the reading, facilitating convenient recording from a distance or in confined spaces

• Automatic/Manual Range Switching: Automatic speed increase, manual range locking for stable accuracy

• USB Wired Communication, Bluetooth Wireless Optional: Real-time data upload and storage

• High Voltage/High Current High Temperature Audible and Visual Alarm, Low Battery Icon Indicator, 15-Minute Automatic Shutdown

​​​​​​​• White Backlit Screen for Clear Reading in Low-Light Cabinets and Nighttime Operations

Software User Manual

Supporting Software System

​​​​​​​• PC: UNI-T Data Logger (Windows Only) Supports USB wired connection, professional data logging, waveform plotting, and report export.

​​​​​​​• Mobile: iDMM 2.0 APP (iOS/Android) Paired with UT-D07B Bluetooth module, enables wireless real-time monitoring, data storage, and curve viewing

Core Software Functions

​​​​​​​• Real-time Value Synchronization: Millisecond-level synchronization with instrument readings, synchronized display of range information

​​​​​​​• Waveform Visualization: Plotting continuous voltage/current change curves, capturing fluctuation faults

​​​​​​​• Timed/Manual Data Recording: Files saved in CSV format, directly openable and editable in Excel

​​​​​​​• Custom Threshold Over-limit Alarm: Upper and lower limit values can be set, with software audible and visual alerts for exceeding limits

​​​​​​​• Historical Recording Retrospection, Comparison of Multiple Data Sets

​​​​​​​• Disconnection Procedure: First, close the software acquisition task → Disconnect the USB cable → Turn off the multimeter power

iDMM2.0 Mobile App Bluetooth Operation Manual

​​​​​​​• Hardware Assembly: Insert the UT-D07B Bluetooth module while the device is powered off. The instrument will automatically start Bluetooth transmission upon power-on.

​​​​​​​• Pairing: Enable Bluetooth on your mobile phone. Search for the device ‘UT61D+’ in the app and click to pair and connect.

​​​​​​​App Core Functions:

​​​​​​​• Wireless remote reading, stable transmission up to 10 meters without obstructions

​​​​​​​• One-click saving of data snapshots, batch export to CSV

​​​​​​​• Simple waveform trend graphs, automatic extreme value annotation

​​​​​​​• Measurement unit switching, remote backlight switch (supported by some firmware)

​​​​​​​• Usage Restrictions: Strong electromagnetic fields (areas with a high density of frequency converters) may slightly reduce Bluetooth stability. USB wired data acquisition is preferred

Custom Design

We get it that standard arrangements do not continuously meet one of a kind prerequisites. Our experienced building group gives comprehensive OEM/ODM customization administrations. Whether you require adjusted recurrence ranges, specialized activating alternatives, or custom frame components, we work closely with you to create the idealize arrangement. Our adaptable plan approach guarantees your particular application needs are completely tended to whereas keeping up our quality standards.

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Why Select MXTD

Proven Encounter: Over 12 a long time of specialized skill in estimation and control frameworks development.

Expert Designing: Our gifted R&D group ceaselessly innovates to convey cutting-edge arrangements that keep you ahead of industry demands.

Quality Confirmation: Strict fabricating forms and comprehensive testing conventions guarantee dependable, steady performance.

Comprehensive Back: From starting meeting through progressing support, our committed group gives responsive specialized assistance.

Secure Conveyance: Collaborating with trusted coordinations suppliers guarantees secure, followed, and safety net provider shipment of your equipment.

Customer Center: We prioritize your victory with standard follow-ups, fast issue determination, and personalized benefit approaches.

Certifications and Certificates

Logistics and Transportation

FAQ

Q: Why do readings keep jumping during operation? 

A: When collecting data, stay away from strong interference sources such as high-power motors.

Q: Why does the instrument panel battery drain so quickly?

A: If the communication function is not used for a long time, unplug the USB/Bluetooth module.

Q: Software need to update?

A: You can regularly updated on the official website to adapt to the latest firmware of the instrument to optimize accuracy and compatibility.

 

Contact us

Contact Us

If you are looking for an affordable excellent choice. As the UT61D+ 1000V True RMS Digital Multimeter product line, the UT61D+ 1000V True RMS Digital Multimeter 40Hz-1kHz is highly competitive in the mid-range professional Digit Multimeter market.It doesn't make you pay for features you don't need, yet it fully meets your requirements in terms of key measurement capabilities.

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