UNI-T UT219M Professional Clamp Meter

Specialized Motor Testing for Professional Technicians

The UNI-T UT219M elevates professional electrical testing with specialized features designed specifically for motor analysis and three-phase systems. Building on the rugged foundation of the UT219 series with IP54 protection and 2-meter drop resistance, this advanced clamp meter adds critical motor-specific functions including 3-phase sequence testing, temperature measurement, and enhanced DC current capabilities.

Key Features

• 3-Phase Motor Sequence Testing: Prevent motor damage with proper rotation verification
• True RMS Measurement: Ensures accurate readings on variable frequency drives and controllers
• DC Current Measurement: Up to 600A DC plus 2000μA precision range
• Temperature Measurement: -40°C to 1000°C range with included temperature probe
• IP54 Environmental Protection: Dust and water-resistant for industrial environments
• 2-Meter Drop Test Certification: Rugged durability for daily professional use
• 1000V AC/DC Voltage Testing: Complete coverage for industrial systems
• 600V Low Pass Filter: Eliminates high-frequency noise for accurate VFD measurements
• Enhanced 3V Diode Test: Superior semiconductor junction analysis
• CAT III 1000V / CAT IV 600V Safety Rating: Professional protection for industrial environments

UNI-T UT219M Details

Motor Specialist Features

The UNI-T UT219M transforms motor testing with its specialized features designed specifically for motor technicians and industrial electricians. The 3-phase motor sequence test function provides immediate verification of proper phase rotation, preventing expensive damage caused by reverse motor operation during installation and maintenance procedures.

Temperature measurement capabilities with included contact probe enable comprehensive motor diagnostics, allowing technicians to identify potential bearing problems, ventilation issues, or electrical hotspots. The extended temperature range from -40°C to 1000°C covers everything from refrigeration systems to industrial heating applications.

The 600V low pass filter function eliminates high-frequency noise when measuring on variable frequency drives and motor controllers, enabling accurate voltage readings that would otherwise be distorted by carrier frequencies. This specialized filtering is essential for proper diagnostics on modern motor drive systems.

Industrial-Grade Construction

The UNI-T UT219M is built for the demanding conditions of industrial environments. With IP54 protection against dust and water splashes, this meter continues to perform reliably in manufacturing facilities, utility installations, and outdoor applications where exposure to contaminants is unavoidable.

The verified 2-meter drop protection ensures your investment survives the physical challenges of industrial fieldwork, while the CAT III 1000V and CAT IV 600V safety ratings provide confidence when working in high-energy environments. This combination of physical and electrical protection makes the UT219M a trusted companion for industrial professionals.

Comprehensive Measurement Capabilities

The UNI-T UT219M provides an extensive range of measurement functions critical for motor specialists:

• AC Current: Measure up to 600A with true RMS accuracy
• DC Current: Complete 600A range plus 2000μA precision measurement
• AC/DC Voltage: Test up to 1000V for comprehensive system coverage
• LoZ Mode: 600V low impedance measurement eliminates ghost voltage readings
• Resistance: Multiple ranges up to 60MΩ for motor winding and insulation testing
• Capacitance: Measure up to 60mF for motor start capacitor verification
• Frequency: Accurate measurement from 10Hz to 10MHz
• Temperature: -40°C to 1000°C/-40°F to 1832°F with included contact probe

The true RMS measurement technology ensures accuracy on the non-sinusoidal waveforms common in variable frequency drives and electronic controllers, providing reliable readings where average-responding meters produce significant errors.

Professional Applications

Motor Installation and Maintenance

Motor specialists rely on the UNI-T UT219M for comprehensive diagnostics:

• 3-phase rotation verification prevents reverse operation damage
• Motor current measurement under varying load conditions
• Temperature monitoring of bearings and connection points
• Winding resistance verification
• Insulation testing of motor components

Industrial Control Systems

Industrial electricians depend on specialized features for control system work:

• Variable frequency drive output verification with low pass filter
• PLC input/output voltage testing
• Sensor and transducer signal verification
• Control circuit continuity testing
• DC current loop measurement (4-20mA)

HVAC/R System Diagnostics

HVAC technicians utilize specialized functions for comprehensive system testing:

• Compressor temperature and current analysis
• Control circuit voltage validation
• Defrost circuit verification
• Motor capacitor testing
• Thermistor and temperature sensor verification

Manufacturing Equipment Maintenance

Maintenance professionals leverage advanced capabilities for equipment upkeep:

• 3-phase power verification
• Motor drive troubleshooting
• Temperature profiling of critical components
• Current monitoring for preventive maintenance
• Control system diagnostics

UNI-T UT219M Technical Specifications

Additional Features

• 3-phase motor sequence test: 600V capability
• Display count: 6000
• Jaw opening: 33mm
• AC current frequency response: 40Hz~400Hz
• AC voltage frequency response: 40Hz~400Hz
• Diode test: 3V enhanced range
• Measurement sampling rate: 3 times/s
• Display interface: Single
• True RMS measurement
• Auto/Manual range selection
• Data hold function
• Auto power off
• Low battery indication
• Backlit display
• CAT III 1000V, CAT IV 600V safety ratings

Package Contents

• UNI-T UT219M Professional Clamp Meter
• Test leads
• Point contact temperature probe
• Batteries (1.5V R03 x 3)
• Carrying bag
• User manual (English, German/French/Spanish optional)

Product Comparison

Frequently Asked Questions

How does the 3-phase sequence test function work?

The 3-phase sequence test function connects to each phase of a three-phase system and analyzes the phase relationship to determine the correct sequence. This is critical when installing or reconnecting motors, as incorrect phase sequence causes reverse rotation that can damage equipment and processes. The UNI-T UT219M provides clear indication of proper phase rotation, preventing costly mistakes during installation and maintenance.

Why is temperature measurement important for motor diagnostics?

Temperature measurement is a critical diagnostic tool for motor analysis. Excessive temperature can indicate bearing problems, inadequate ventilation, overloading, or electrical issues before they cause catastrophic failure. The UT219M's wide temperature range (-40°C to 1000°C) with included contact probe enables thorough thermal profiling of motor components, helping identify developing problems during preventive maintenance.

What is the purpose of the low pass filter function?

The low pass filter function filters out high-frequency components when measuring voltage on variable frequency drives (VFDs) and motor controllers. These devices use pulse width modulation that can cause standard meters to display inaccurate readings. By eliminating frequencies above power line frequency, the UT219M provides accurate voltage measurements on VFD outputs, essential for proper motor system diagnostics.

How does True RMS measurement benefit motor testing?

True RMS measurement is essential for accurate readings on motor systems, particularly those using variable frequency drives or electronic controllers. These systems produce non-sinusoidal current waveforms that cause significant measurement errors with average-responding meters. The UT219M's True RMS capability ensures accurate current readings regardless of waveform distortion, providing reliable data for motor load analysis and troubleshooting.

What is the warranty period for the UNI-T UT219M?

UNI-T provides a 12-month warranty on the UT219M, covering manufacturing defects and component failures under normal use conditions.

Customer Testimonials

"The 3-phase sequence test on the UT219M has saved me countless hours and prevented potential equipment damage during motor replacements. It's become an essential tool for my industrial maintenance team." - Mohammed J., Manufacturing Maintenance Supervisor

"As an HVAC specialist working with commercial refrigeration, the temperature measurement and current testing on the UT219M give me everything I need for compressor diagnostics in one compact tool. The durability has been impressive in daily use." - Ana S., Commercial HVAC Technician

"I work on industrial control systems with lots of VFDs, and the low pass filter on the UT219M gives me accurate voltage readings where my previous meter was all over the place. The additional DC current capability is perfect for loop testing 4-20mA signals." - Michael T., Industrial Controls Specialist

Support and Warranty

UNI-T stands behind the UT219M with comprehensive technical support and a 12-month warranty. Our dedicated support team is available to assist with application questions, measurement techniques, and warranty service.

Specialized Motor Testing Excellence

The UNI-T UT219M Professional Clamp Meter delivers specialized functionality for motor technicians and industrial professionals who demand both comprehensive electrical testing and advanced motor-specific features. With 3-phase sequence testing, temperature measurement, and industrial-grade durability, the UT219M is the perfect companion for professionals working with motors and three-phase systems.

Order Your UNI-T UT219M Today and Experience Specialized Motor Testing Capabilities.