HT Instruments HT22D Compact TRMS Multimeter with VFD Function 1010175

Accurate electrical measurements on variable frequency drives and noisy industrial circuits demand true RMS technology, and the HT22D delivers it in a compact, easy-to-carry package. This multimeter solves the problem of unreliable readings on non-sinusoidal waveforms by providing true RMS AC voltage and current measurement, plus a dedicated VFD (Voltage Frequency Drive) function for troubleshooting motor drives.

Who is it for

Electricians, HVAC technicians, and maintenance engineers who work on modern electronically controlled equipment will appreciate the HT22D's combination of essential measurement functions, safety rating, and portability.

Main features

• True RMS measurement for accurate readings on distorted waveforms
• VFD function for voltage and frequency measurement on variable frequency drives
• 4000-count backlit LCD display for clear readings in any light
• Auto ranging with data hold and min/max recording
• CAT III 600V safety rating for industrial applications

Specifications

• DC voltage: 400mV / 4V / 40V / 400V / 600V
• AC voltage (TRMS): 4V / 40V / 400V / 600V
• DC current: 400µA / 4000µA / 40mA / 400mA / 4A / 10A
• AC current (TRMS): 400µA / 4000µA / 40mA / 400mA / 4A / 10A
• Resistance: 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ
• Capacitance: 40nF / 400nF / 4µF / 40µF / 400µF / 4mF
• Frequency: 40Hz / 400Hz / 4kHz / 40kHz / 400kHz / 4MHz / 40MHz
• Diode test and continuity with buzzer
• Power: 2x 1.5V AAA batteries

Tips

Use the VFD function when measuring output of variable speed drives to avoid false readings caused by high-frequency noise. The auto power off feature helps preserve battery life during long work sessions.