TOOLTOP ET32C Signal Generator Multimeter User Manual

1. Product Overview

The TOOLTOP ET32C (and ET31C) is an innovative 2-in-1 device that ingeniously integrates the functionalities of a digital multimeter and a signal generator into a single, portable unit. It features a vibrant 2.8-inch color display for clear readings and intuitive operation. This versatile tool is designed for accurate vehicle maintenance, audio coordination, and general electrical testing.

Key Features:

• 2-in-1 Design: Combines digital multimeter and signal generator functions.
• 2.8-inch Color Display: High-resolution (320*480) screen with adjustable brightness (5%-100%).
• Multimeter Functions: Measures DC Voltage, AC Voltage, Resistance, Diode, On-off continuity, Capacitance, Frequency, and Duty Ratio. Supports 4000 counts True RMS.
• Signal Generator: Generates Sine waves, Square waves, Combination waves, and Scanning waves.
• Manually Adjustable Parameters: Allows setting of Vp-p (peak-to-peak voltage), Time, Frequency, and Voltage Output.
• Coil Control: Supports testing of ignition coils, solenoid valves, and relays (up to 30V/1A).
• Scanning Waves Output: Simulates analog crankshaft cam signals for low-speed to high-speed operation.
• Combined Waves Output: Arbitrarily set missing teeth signals without computer connection, up to 99+99 combined waves.
• Waveform Signal Storage: Stores and loads up to 50 sets of waveform parameters.

2. Setup and Components

Package Contents:

Upon opening the package, please ensure all the following items are present:

• 1 x Signal Generator Multimeter (ET31C or ET32C model)
• 2 x Test Leads (Red and Black)
• 1 x Probe
• 1 x User Manual
• 1 x USB Charging Cable (for ET32C model only)

Battery Installation and Charging:

• ET31C Model: Requires 3 x AAA batteries (not included). Open the battery compartment on the back of the device and insert the batteries, observing correct polarity.
• ET32C Model: Features a built-in lithium battery. To charge, connect the device to a USB power source using the provided USB charging cable. The USB charging interface is located on the side of the device.

Device Interface and Buttons:

• USB Charging Interface: (Only for ET32C) Used for charging the internal battery.
• 2.8-inch HD Display: Shows measurement results, waveform graphs, and menu options.
• Function Buttons (Fn1, Fn2, Fn3, Fn4): Context-sensitive buttons for various operations displayed on the screen.
• Switch/Off Button: Powers the device on or off.
• Direction Control and OK Button: Used for navigating menus and confirming selections.
• Mode Switch Button: Toggles between different operating modes (e.g., Multimeter, Signal Generator).
• Jack: Input/output terminals for test leads.

3. Operating Instructions

Power On/Off:

Press and hold the 'Switch/Off' button to power the device on or off.

Multimeter Function:

Switch the device to Multimeter mode using the 'MODE' button. Connect the test leads to the appropriate jacks and the circuit under test. The display will show the measurement results. The device supports the following measurements:

• DC Voltage: Measures direct current voltage.
• AC Voltage: Measures alternating current voltage.
• Resistance: Measures electrical resistance.
• Diode: Tests diode functionality.
• On-off Continuity: Checks for circuit continuity.
• Capacitance: Measures capacitance.
• Frequency: Measures signal frequency.
• Duty Ratio: Measures the duty cycle of a signal.

Signal Generator Function:

Switch the device to Signal Generator mode using the 'MODE' button. You can generate various waveforms and control specific components.

Waveform Generation:

The signal generator can produce Sine waves, Square waves, Combination waves, and Scanning waves. Parameters such as Vp-p, Time, and Frequency can be manually adjusted to meet specific testing requirements. Press F2 to set the parameters.

Coil Control:

This function allows you to check the operational status of ignition coils, solenoid valves, and relays. The device supports coil control for components up to 30V/1A. Press F4 to turn the parameter on or off.

Scanning Waves Output:

Generate analog crankshaft cam signals, useful for diagnosing vehicle systems from low-speed to high-speed operation. This is particularly beneficial for audio maintenance and coordination circuit maintenance.

Combined Waves Output:

The device supports generating combined waves, including arbitrarily setting missing teeth signals without needing a computer connection. The maximum number of combined waves is 99+99.

Waveform Signal Storage:

You can manually adjust waveform signal parameters and then save them for future use. The device can store up to 50 sets of waveform parameters, allowing for quick recall of frequently used configurations.

4. Maintenance

To ensure the longevity and accuracy of your TOOLTOP ET32C/ET31C Signal Generator Multimeter, please follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove AAA batteries from the ET31C model.
• Battery Care (ET32C): For the built-in lithium battery, avoid fully discharging it frequently. Charge it regularly, even if not in use, to maintain battery health.
• Test Leads: Inspect test leads and probes regularly for any signs of damage or wear. Replace them if necessary to ensure safe and accurate measurements.

5. Troubleshooting

If you encounter any issues with your device, please consider the following general troubleshooting steps:

• Device Not Powering On: Check battery levels (for ET31C, replace AAA batteries; for ET32C, ensure it is charged).
• Inaccurate Readings: Ensure test leads are properly connected and not damaged. Verify the correct measurement mode is selected.
• Display Issues: Check screen brightness settings. If the screen is unresponsive, try restarting the device.
• Signal Generation Problems: Double-check the set parameters (Vp-p, Frequency, Time). Ensure the output is enabled.

If problems persist, please refer to the detailed user manual included in the package or contact customer support for assistance.

6. Specifications

7. Warranty and Support

Your TOOLTOP ET32C/ET31C Signal Generator Multimeter comes with several service commitments to ensure your satisfaction:

• Free Returns: Enjoy free returns within 90 days of purchase for quality problems.
• Fast Delivery Guarantee: If delivery is delayed, a $1.00 coupon code may be provided. Refunds are available if the package is lost or items are damaged during transit, or if no delivery occurs within 30 days.
• Security & Privacy: Your personal details are protected and not shared with third parties without consent.

For any issues or questions regarding your order or product, please contact the seller directly. They are committed to providing prompt assistance and resolving any concerns.