HTC Instruments DM-81 Digital Multimeter

HTC Instruments DM-81 Digital Multimeter

The HTC Instruments DM-81 is a 3½ digit digital multimeter designed for both professionals and DIY enthusiasts. It offers manual ranging and a range of features suitable for various electrical testing applications.

Key Features:

• 3½ Digit Display: Provides a clear and precise reading with a 1,999 count display.

• Manual Range Selection: Allows users to select the appropriate range for measurements, providing flexibility in testing.

• AC/DC Voltage Measurement: Measures AC and DC voltages up to 1000V, accommodating a wide range of applications.

• AC/DC Current Measurement: Capable of measuring currents up to 20A, suitable for various electrical tasks.

• Resistance Measurement: Measures resistance up to 200MΩ, useful for checking continuity and resistance in circuits.

• Capacitance Measurement: Measures capacitance up to 200μF, aiding in the testing of capacitors.

• Frequency Measurement: Measures frequency up to 2kHz, useful for testing signal frequencies.

• Transistor Testing (hFE): Allows for testing of transistors to determine their gain.

• Diode Testing: Checks the functionality of diodes in circuits.

• Live Wire Recognition: Enhances safety by identifying live wires during testing.

• Full Overload Protection: Protects the multimeter from damage due to overload conditions.

• Low Battery Indication: Alerts users when the battery is low, ensuring accurate measurements.

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

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

• Compact and Lightweight Design: Easy to carry and handle, making it suitable for fieldwork.

Applications:

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

• Home Appliance Repair: Useful for testing and repairing household electrical appliances.

• Automotive Diagnostics: Suitable for testing electrical systems in vehicles.

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

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

  DV Voltage
  – 200mV 0.1mV ±1.2% of rdg + 5 digits
  – 2V 1mV ±1.2% of rdg + 5 digits
  – 20V 10mV ±1.2% of rdg + 5 digits
  – 200V 100mV ±1.2% of rdg + 5 digits
  – 1000V 1V ±1.5% of rdg + 5 digits
  DV Current
  – 2mA 1µA ±1.5% of rdg + 5 digits
  – 200mA 10µA ±2% of rdg + 5 digits
  – 20A 10mA ±3% of rdg + 5 digits
  AC Voltage
  – 200mV 0.1mV ±2% of rdg + 5 digits
  – 2V 1mV ±1.8 of rdg + 5 digits
  – 20V 10mV ±1.5 of rdg + 5 digits
  – 200V 1000mV ±1.5 of rdg + 5 digits
  – 750V 1V ±2% of rdg + 7 digits
  AC Current
  – 2mA 1µA ±2% of rdg + 5digits
  – 200mA 100µA ±2.5% of rdg+ 5digits
  – 20A 10mA ±3% of rdg+ 7digits