HTC Instruments DM-87 VSD Digital Multimeter

HTC Instruments DM-87 VSD Digital Multimeter

The HTC Instruments DM-87 VSD Digital Multimeter is a high-precision, 4½-digit handheld multimeter designed for professionals in electrical, electronics, and HVAC industries. With a 5,999-count resolution and True RMS measurement capability, it offers accurate readings across a wide range of electrical parameters. Its Variable Speed Drive (VSD) compatibility makes it ideal for testing equipment with variable frequency drives.

🔑 Key Features

• 4½-Digit Display: Offers a 5,999-count resolution for precise measurements.

• True RMS Measurement: Ensures accurate readings for both AC and DC signals, including non-sinusoidal waveforms.

• VSD (Variable Speed Drive) Compatibility: Designed to measure voltages and frequencies from VSD-controlled equipment.

• Large LCD Display: Provides clear and easy-to-read measurements.

• Data Hold Function: Freezes the current reading on the display for easy recording.

• Max/Min Value Hold: Captures and displays the maximum and minimum readings.

• Analog Bar Graph: Visual representation of measurements for quick assessment.

• Auto Power Off: Conserves battery life by automatically turning off the device after a period of inactivity.

• Backlight Display: Allows for easy reading in low-light conditions.

• Continuity Buzzer: Audible indication for continuity testing.

• Transistor hFE Test: Tests the gain of transistors.

• Capacitance Measurement: Measures capacitance up to 2,000 µF.

• Frequency Measurement: Measures frequencies up to 30 MHz.

• Temperature Measurement: Measures temperature using a Type-K thermocouple.

📊 Specifications

• DC Voltage Range: 0.1 mV to 1,000 V

• AC Voltage Range: 0.1 mV to 750 V

• DC Current Range: 0.1 µA to 20 A

• AC Current Range: 0.1 µA to 20 A

• Resistance Range: 0.1 Ω to 30 MΩ

• Capacitance Range: 10 pF to 2,000 µF

• Frequency Range: 5 Hz to 30 MHz

• Temperature Range: -40°C to 1,000°C

• Display: 4½-digit, 5,999-count LCD with analog bar graph

• Sampling Rate: Approximately 3 times per second

• Power Supply: 1 x 9V battery (6F22)

• Dimensions: 185 x 93 x 35 mm

• Weight: Approximately 290 g

• Safety Rating: CAT II 1000V

🛠️ Applications

• Electrical Troubleshooting: Ideal for diagnosing issues in electrical circuits and components.

• HVAC Systems: Suitable for testing and maintaining HVAC control systems.

• Industrial Equipment: Perfect for servicing equipment with variable frequency drives.

• Electronics Repair: Useful for testing and repairing electronic devices.

• Educational Use: Great for teaching and learning about electrical measurements and concepts.

• DIY Projects: Perfect for hobbyists working on various electronic projects.

  DC Voltage 0.1mV ~ 1000V ±(0.5% + 4digit)
  – AC Voltage 0.1mV ~ 750V ±(0.8%+ 10digit)
  – DC Current 0.1uA ~ 20A ±(1.0% + 10digit)
  – AC Current 0.1uA ~ 20A ±(1.5% + 20digit)
  – Resistance 0.1Ω ~ 30MΩ ±(0.8% + 3digit)
  – Capacitance 10pF ~ 2000uF ±(2.5% + 5digit)
  – Frequency 5Hz ~ 30MHz ±(0.5% + 4digit)
  – Temperature -40oC～1000oC ±(0.8% + 4digit)
  – Dimension: 185(H) x 93(W) x 35(D)mm