HoldPeak HP-39C

HoldPeak HP-39C Digital Multimeter User Manual

Model: HP-39C

6000 Counts TRMS Auto Ranging Voltmeter for AC/DC Voltage, Amperage, Ohm, Capacitance & Temperature

1. Introduction

The HoldPeak HP-39C is a professional-grade digital multimeter designed for accurate and reliable electrical measurements. It features 6000 counts auto-ranging capabilities, making it suitable for a wide range of applications from hobbyist projects to professional electrical troubleshooting. This manual provides detailed instructions for the safe and effective use of your multimeter.

Key Features:

  • Pro Hobbyist Multimeter: Accurate measurement of AC/DC voltage and current, resistance, capacitance, diode, frequency, duty cycle, temperature, and battery volt checking.
  • Double Protection: Equipped with double fuse and IEC 61010-1 & CATIII 600V overload protection on all ranges for enhanced safety.
  • Multifunction Tester: Auto-ranging, auto-backlit in darkness, auto shut-down, data hold, ℃/℉ switchable, Non-Contact Voltage (NCV) function, and zeroing relative value for precise readings.
  • Battery Test Modes: Includes 1.5V and 9V battery test modes.
  • Durable Design: Comes with a durable case to protect against accidental drops.

2. Safety Information

WARNING: To avoid electrical shock, remove test leads before opening case or battery cover. Please read manual for safety.

Always observe standard safety precautions when working with electrical circuits. Ensure the multimeter is set to the correct function and range before making any measurements. Do not exceed the maximum input values for any range.

3. Package Contents

Verify that all items are present and undamaged upon opening the package:

  • 1 x HoldPeak HP-39C Digital Multimeter
  • 1 x Test Lead Set (Red and Black)
  • 1 x Thermocouple (Temperature Probe)
  • 1 x Protective Case
  • 1 x User Manual
  • (Note: 9V (6F22) battery is NOT included and must be purchased separately.)
Package contents of the HoldPeak HP-39C Digital Multimeter, including the meter, test leads, thermocouple, and protective case.
Figure 3.1: Contents included in the HP-39C Digital Multimeter package.

4. Component Identification

Familiarize yourself with the different parts of your multimeter:

Diagram of the ANNMETER AN-39C Digital Multimeter with labeled components including NCV Detection Area, CDS Sensor, LCD Display, Range Key, Select Key, REL Key, Hold Key, Hertz/% Key, Rotary Switch, 10A jack, COM jack, and VΩmA T+ jack.
Figure 4.1: Front panel and key components of the HP-39C Multimeter.
  • NCV Detection Area: For Non-Contact Voltage detection.
  • CDS Sensor: Automatic control of LCD backlight.
  • LCD Display: 6000 counts digit, full function symbol display.
  • Range Key: Switches between Manual and Automatic Range Mode.
  • Select Key: Press long to turn power off (automatic shutdown function will be disabled). Used to select specific functions within a rotary switch position.
  • REL Key: Relative Measurement Mode.
  • Hold Key: Locks the displayed value.
  • Hertz/% Key: Frequency or Duty Cycle Measurement.
  • Rotary Switch: Used to select different functions and ranges.
  • 10A Jack: Input for high current measurements.
  • COM Jack: Common input for all measurements (negative lead).
  • VΩmA T+ Jack: Input for voltage, resistance, current (mA/µA), capacitance, frequency, diode, continuity, and temperature measurements (positive lead).
Close-up of the LCD display of the ANNMETER AN-39C, highlighting automatic backlight and clear readings.
Figure 4.2: LCD Display features automatic backlight for clear readings.

5. Setup

5.1 Battery Installation

The multimeter requires a 9V (6F22) battery (not included). To install:

  1. Ensure the multimeter is turned OFF and test leads are disconnected.
  2. Locate the battery compartment on the back of the device.
  3. Use a screwdriver to open the battery cover.
  4. Insert the 9V battery, observing correct polarity.
  5. Replace the battery cover and secure it with the screw.

5.2 Attaching the Stand/Strap

The multimeter comes with a removable stand/strap for convenience.

  1. Align the stand with the slots on the back of the multimeter.
  2. Slide the stand into place until it clicks securely.
  3. The stand can be used to prop up the multimeter or as a hanging strap.
Video 5.1: Product overview and demonstration of attaching the stand/strap (0:00 - 0:34).

6. Operating Instructions

Before any measurement, ensure the test leads are tightly connected to the appropriate ports on the multimeter.

6.1 General Operation

  • Power On/Off: Turn the rotary switch from 'OFF' to any measurement function to power on. To power off, turn the rotary switch to 'OFF'. The multimeter also features auto power off.
  • Function Selection: Use the rotary switch to select the desired measurement function (e.g., V~ for AC Voltage, V- for DC Voltage, Ω for Resistance).
  • Sub-Function Selection (SELECT key): For functions with multiple modes (e.g., Resistance, Diode, Continuity, Capacitance), press the 'SELECT' key to cycle through them.
  • Data Hold (HOLD key): Press the 'HOLD' key to freeze the current reading on the display. Press again to release.
  • Range Selection (RANGE key): By default, the multimeter operates in auto-ranging mode. Press the 'RANGE' key to switch to manual ranging. Press repeatedly to cycle through available ranges. Press and hold to return to auto-ranging.
  • Relative Measurement (REL key): Used to measure the difference between a stored reference value and the current reading.

6.2 Specific Measurement Modes

6.2.1 Resistance, Diode, Continuity Test, Capacitance

  1. Turn the rotary switch to the position for Resistance/Diode/Continuity/Capacitance (Ω).
  2. Press the 'SELECT' key to cycle through Resistance (Ω), Diode (►|), Continuity (🔊), and Capacitance (F) modes.
  3. Connect the test leads to the circuit or component under test.
  4. For Continuity Test: Hearing a "DiDiDi" sound indicates normal continuity (test leads are not damaged or out of contact).
Video 6.1: Demonstration of Resistance, Diode, Continuity, and Capacitance tests (0:47 - 1:47).

6.2.2 Battery Measurement (1.5V, 9V)

  1. Turn the rotary switch to the '1.5V/9V' battery test position.
  2. Connect the test leads to the battery terminals, observing polarity.
  3. Read the voltage displayed on the screen.
Video 6.2: Demonstration of 1.5V and 9V battery measurement (1:48 - 2:02).

6.2.3 Temperature Measurement

  1. Turn the rotary switch to the '°C/°F' position.
  2. Insert the thermocouple into the VΩmA T+ and COM jacks, observing polarity.
  3. Place the thermocouple tip on or in the object whose temperature you wish to measure.
  4. Press 'SELECT' to switch between Fahrenheit (°F) and Celsius (°C).
Video 6.3: Demonstration of temperature measurement (2:03 - 2:30).

6.2.4 Voltage Test (AC/DC)

  1. Turn the rotary switch to the 'V-' (DC Voltage) or 'V~' (AC Voltage) position.
  2. Connect the test leads to the circuit in parallel.
  3. If in 'V~' mode, press 'SELECT' to switch between AC and DC voltage measurement.
  4. Read the voltage displayed on the screen.
Video 6.4: Demonstration of AC/DC Voltage test (2:31 - 2:48).

6.2.5 Non-Contact Voltage (NCV)

  1. Turn the rotary switch to the 'NCV' position.
  2. Move the NCV detection area (top of the multimeter) close to the live wire or power outlet.
  3. The multimeter will beep and the LED will flash if AC voltage is detected.
Video 6.5: Demonstration of Non-Contact Voltage (NCV) measurement (2:49 - 2:55).

7. Technical Specifications

Measurement TypeRangeAccuracy
DC Voltage600mV/6V/60V/600V±(0.5% of reading + 2 digits)
AC Voltage6V/60V/600V±(1.0% of reading + 3 digits)
DC Current600µA/6000µA/60mA/600mA
6A/10A		±(1.2% of reading + 2 digits)
±(2.0% of reading + 3 digits)
AC Current600µA/6000µA/60mA/600mA
6A/10A		±(1.5% of reading + 3 digits)
±(2.5% of reading + 5 digits)
Resistance600Ω/6kΩ/60kΩ/600kΩ/6MΩ
60MΩ		±(1.0% of reading + 2 digits)
±(1.5% of reading + 3 digits)
Capacitance9.999nF/99.99nF/999.9nF/9.999µF
99.99µF/999.9µF/9.999mF/99.99mF		±(2.5% of reading + 5 digits)
±(5% of reading + 10 digits)
Frequency9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/9.999MHz±(0.1% of reading + 5 digits)
Temperature-20-1000℃±(3%)
Duty Cycle0.1%-99.9%

8. Maintenance

8.1 Cleaning

Wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.

8.2 Battery Replacement

When the battery indicator appears on the display, replace the 9V battery immediately to ensure accurate readings.

8.3 Fuse Replacement

If the multimeter fails to measure current, the fuse may need replacement. Refer to the safety warning before opening the case.

9. Troubleshooting

  • No Display: Check battery installation and charge. Ensure the rotary switch is not in the 'OFF' position.
  • Incorrect Readings: Verify the correct function and range are selected. Ensure test leads are properly connected and not damaged. Check for external interference.
  • "OL" Display: Indicates overload or out-of-range measurement. Select a higher range or ensure the measured value is within the meter's capabilities.
  • No Continuity Beep: Ensure the continuity function is selected. Check test leads for damage.
Image showing AC Current Test and Continuity Buzzer features of the multimeter, indicating stable performance.
Figure 9.1: Visual demonstration of AC Current Test and Continuity Buzzer.

10. Warranty and Support

Your HoldPeak HP-39C Digital Multimeter comes with a 1-year warranty from the date of purchase. We also provide lifetime technical support for our products. If you have any questions or require assistance, please do not hesitate to contact our customer service. We aim to respond to all inquiries within 24 hours.

Warranty and Service information: 7 days return for quality problems, 1 year warranty, and shopping help with emails answered within 24 hours.
Figure 10.1: Warranty and Service details.

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