HoldPeak HP-90EPD Digital Multimeter User Manual

Introduction

Thank you for choosing the HoldPeak HP-90EPD Digital Multimeter. This device is a high-performance, auto-ranging multi-tester designed for accurate measurement of AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, and temperature. It features Bluetooth connectivity for seamless integration with a mobile application, allowing for data logging, analysis, and export. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your multimeter.

Setup

1. Battery Installation

The HoldPeak HP-90EPD Multimeter requires a 9V battery for operation. Ensure the battery is installed correctly before first use.

The multimeter's rear panel with the 9V battery compartment open.

1. Locate the battery compartment cover on the back of the multimeter.
2. Use a screwdriver to remove the screw securing the cover.
3. Insert a new 9V battery, observing the correct polarity (+/-).
4. Replace the battery compartment cover and secure it with the screw.

2. Connecting to Mobile App via Bluetooth

The HP-90EPD can connect to your smartphone via Bluetooth for enhanced functionality and data management.

Visual guide for connecting the multimeter to the mobile application.

1. Step 1: Scan the QR code provided in the product packaging or search for "iMultimeter" in your mobile app store (iOS/Android) to download the application. You can also visit http://aicare.net.cn/app/iMultimeter/index.html for the app.
2. Step 2: Open your phone's Bluetooth settings and ensure Bluetooth is enabled. Then, launch the iMultimeter application.
3. Step 3: Turn on the multimeter. The phone application will automatically detect and connect to the device.

Operating Instructions

1. Controls and Display

Labeled components of the multimeter's front panel.

• LCD Display: Shows measurement readings, units, and function indicators.
• Rotary Switch: Selects the primary measurement function (e.g., Voltage, Resistance, Current, Capacitance, Temperature).
• SELECT Key: Toggles between different measurement modes within a function (e.g., AC/DC voltage, Diode/Continuity).
• HOLD Key: Freezes the current reading on the display. Press again to release.
• RANGE Key: Toggles between auto-ranging and manual ranging. In manual mode, press to cycle through ranges.
• REL Key: Activates the relative measurement mode, displaying the difference from a stored reference value.
• Hz/% Key: Used for frequency and duty cycle measurements.
• CDS Sensor: Automatically adjusts backlight brightness based on ambient light.

2. Measurement Functions

The HP-90EPD offers a wide range of measurement capabilities:

Overview of the multimeter's functional icons.

• Voltage Measurement (AC/DC): Measures DC voltage up to 1000V and AC voltage up to 750V.
• Current Measurement (DC/AC): Measures DC/AC current up to 20A.
• Resistance Measurement: Measures resistance up to 40 MΩ.
• Capacitance Measurement: Measures capacitance up to 100 µF.
• Frequency and Duty Cycle: For measuring signal frequency and duty cycle.
• Temperature Measurement: Requires the included temperature probe.
• Diode Test: Checks the forward voltage drop of diodes.
• Continuity Buzzer: Emits an audible tone if resistance is below a certain threshold, indicating continuity.
• hFE Test: Measures the DC current gain of transistors.
• 1.5V ~ 12V Battery Test: Checks the voltage of common batteries.

3. General Operation Tips

Examples of multimeter applications.

• Always select the correct function using the rotary switch before connecting the test leads to the circuit.
• For voltage and current measurements, ensure the test leads are connected to the appropriate input jacks (VΩHz, mA, 20A, COM).
• Utilize the auto-ranging feature for convenience, or switch to manual ranging for specific applications.
• The auto backlight feature ensures readability in various lighting conditions.
• The data hold function is useful for recording readings in hard-to-reach areas.

Maintenance

1. Battery Replacement

When the low battery indicator appears on the display, it's time to replace the 9V battery. Refer to the "Battery Installation" section under Setup for detailed steps.

2. Cleaning

• Wipe the multimeter's casing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Ensure the device is turned off and disconnected from any circuits before cleaning.

3. Storage

• Store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures.
• If storing for an extended period, remove the battery to prevent leakage.

Troubleshooting

If you encounter issues with your HoldPeak HP-90EPD Multimeter, consider the following common solutions:

If the problem persists after trying these solutions, please contact HoldPeak customer support for assistance.

Specifications

Warranty and Support

HoldPeak offers a two-year warranty and lifetime technical support for the HP-90EPD Digital Multimeter. If you encounter any problems with your product, please do not hesitate to contact HoldPeak customer service. We are committed to addressing your concerns within 24 hours.

For support, please refer to the contact information provided with your product packaging or visit the official HoldPeak website.