WLLKIY ET31C/ET32C Automotive Signal Generator Multimeter User Manual

1. Introduktion

This manual provides detailed instructions for the safe and effective operation of your WLLKIY ET31C/ET32C Automotive Signal Generator Multimeter. This device combines the functions of a signal generator and a multimeter, designed for automotive diagnostics and testing. It can simulate various automotive sensor signals, test ignition coils, and perform standard multimeter measurements.

WLLKIY ET31C/ET32C Automotive Signal Generator Multimeter with accessories

Figure 1: WLLKIY ET31C/ET32C Automotive Signal Generator Multimeter and included accessories.

2. Sikkerhedsoplysninger

Læs og forstå alle sikkerhedsadvarsler og betjeningsvejledninger, før du bruger dette instrument. Manglende overholdelse af disse instruktioner kan resultere i elektrisk stød, brand eller alvorlig personskade.

Brug altid passende personlige værnemidler, såsom sikkerhedsbriller, når du arbejder på køretøjer.
Brug ikke enheden, hvis den ser beskadiget ud, eller hvis testledningerne er i stykker.
Ensure the device is powered off before connecting or disconnecting test leads.
Undgå kontakt med strømførende kredsløb.
Do not exceed the maximum input ratings specified in the specifications section.
Hold enheden væk fra fugt og ekstreme temperaturer.

3. Pakkens indhold

Bekræft, at alle nedenstående varer er til stede i din pakke:

1 x Signal Generator Multimeter (ET31C or ET32C model)
1 x par prøveledninger
1 x Pair of Alligator Clip Wires
1 x USB Type-C Cable (for ET32C charging, or data for both)
1 x engelsk brugervejledning

Note: For ET31C, 3x 1.5V AAA batteries are required and are not included. The ET32C model includes a built-in 4.2V lithium battery.

4. Opsætning

4.1 Tænding af enheden

For ET31C: Open the battery compartment on the back of the device. Insert 3x 1.5V AAA batteries, ensuring correct polarity. Close the compartment.
For ET32C: The device has a built-in rechargeable battery. If the battery is low, connect the included USB Type-C cable to the device and a suitable USB power source (e.g., computer USB port, USB wall adapter).
Press and hold the power button (usually marked with a power symbol) to turn on the device.

4.2 Tilslutning af testledninger

Connect the test leads or alligator clip wires to the appropriate input jacks on the bottom of the device.

COM Jack: Common (negative) input for all measurements and signal output.
VΩHz-stik: Positiv indgang for volumentage. modstands-, frekvens-, kapacitans-, diode- og kontinuitetsmålinger.
Udgangsstik: Positive output for signal generation.

5. Betjeningsvejledning

5.1 Skift mellem tilstande

The device operates in two primary modes: Signal Generator and Multimeter. Use the MODE button to switch between these functions. The current mode will be displayed on the 2.8-inch screen.

WLLKIY ET32C in automotive application, showing signal generation and multimeter functions

Figure 2: The device in use for automotive sensor signal simulation and ignition coil testing.

5.2 Signalgeneratorfunktioner

This mode allows you to generate various electrical signals for testing automotive components.

Signaltyper: Sine wave, Square wave, Combined wave (e.g., 58+2, 10+1 missing teeth), Scan wave, and DC wave.
Frekvensområde: 1Hz to 9999Hz (adjustable in 1Hz steps).
Udgang Voltage (Peak-to-Peak): -12V to +12V (adjustable in 1V steps).
Duty Cycle (for Square Wave): 1 % til 99 %.
Scan Wave: Simulates crankshaft/camshaft signal changes from low to high speed (scan time 1s to 999s).
Combined Wave: Allows setting of missing teeth signals (e.g., 58+2, 10+1). Maximum combined wave combinations: 99+99.
Bølgeformlagring: The instrument supports storing up to 50 sets of waveform parameters.

WLLKIY ET32C display showing combined wave with missing teeth signal (10+2)

Figure 3: Display illustrating combined wave signal generation with missing teeth settings.

WLLKIY ET32C display showing waveform storage menu with 50 sets of parameters

Figure 4: The device's waveform storage feature, allowing up to 50 sets of parameters to be saved.

5.2.1 Automotive Signal Simulation

The signal generator can simulate Hall-type and magneto-electric crankshaft and camshaft signals. This is useful for diagnosing engine management systems without needing to run the engine.

Supports simulation for both gasoline and diesel vehicles.
Simulate various sensor outputs to test ECU responses.

WLLKIY ET32C used as a vehicle maintenance signal source in an engine bay

Figure 5: The device functioning as a vehicle maintenance signal source, simulating sensor outputs.

5.2.2 Ignition Coil Control

The device can control ignition coils, solenoid valves, and relays to test their functionality.

Coil control power: Less than 30V/1A.
Connect the output to the component to be tested and observe its operation.

WLLKIY ET32C displaying ignition coil test function

Figure 6: Screen showing the ignition coil test function, used to verify normal operation of coils, solenoid valves, and relays.

5.3 Multimeterfunktioner

In multimeter mode, the device performs standard electrical measurements.

DC bindtage: Max 1000V.
AC Voltage: Max 750V.
Modstand: Max 40MΩ.
Kapacitans: Max 100uF.
Frekvens: Max 50KHz.
Driftscyklus: 0.1 % til 99.9 %.
Diode test: 0V til 1.5V.
Kontinuitetstest: Resistance value for continuity detection: Max 30Ω.
Vise: 4000 counts, updates 3 times per second.

WLLKIY ET32C showing multimeter display and screen specifications

Figure 7: The device's multimeter display showing a measurement, alongside details of the 2.8-inch screen with 320x480 resolution.

6. Specifikationer

6.1 Generelle specifikationer

Vise: 2.8-inch, 320 * 480 resolution
Touchskærm: Ikke understøttet
USB-grænseflade: Type-C USB
Battery (ET31C): 3 * 1.5V AAA batteries (not included)
Battery (ET32C): Indbygget 4.2V lithiumbatteri
Opbevaringstemperatur: -20°C til 60°C (-4°F til 140°F)
Driftstemperatur: 0°C til 50°C (32°F til 122°F)
Fugtighed: <85% relativ luftfugtighed (ikke-kondenserende)
Produktmål (LxBxH): 134 mm * 69 mm * 25 mm
Produktvægt: 125 g (excluding accessories)

6.2 Parametre for signalgenerator

Sine Wave/Square Wave Frequency Range: 1Hz ~ 9999Hz
Sine Wave/Square Wave Frequency Step: 1 Hz
Sine Wave/Square Wave Peak Range: -12V ~ +12V
Sine Wave/Square Wave Peak Step: 1V
Scan Wave Scan Time Range: 1s ~ 999s
Maximum Combined Wave Combinations: 99+99
Udgang Voltage Område: -12V ~ +12V
Udgang Voltage Trin: 1V
Coil Control Power: Less than 30V/1A
Bølgeformlagring: 50 sæt
Duty Setting (for Square Wave only): 1 % ~ 99 %

6.3 Multimeterparametre

Maksimal DC-indgang Voltage: 1000V
Maksimal AC-indgang Voltage: 750V
Maximum Measured Resistance: 40MΩ
Maximum Measured Capacitance: 100uF
Maximum Frequency Measurement: 50 KHz
Duty Cycle Measurement Range: 0.1 % ~ 99.9 %
Diode Measurement Range: 0V ~ 1.5V
Maximum Resistance for Continuity Detection: 30Ω
Visningstællinger: 4000 tæller
Opdateringshastighed: 3 gange i sekundet

7. Vedligeholdelse

Rensning: Tør enheden af med en blød, damp klæde. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
Opbevaring: 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 optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly if not in use for long periods.
Prøveemner: Undersøg testledningerne for eventuelle skader (snit, revner) før hver brug. Udskift beskadigede ledninger med det samme.

8. Fejlfinding

Problem	Mulig årsag	Løsning
Enheden tænder ikke.	Low or dead batteries (ET31C). Discharged internal battery (ET32C). Tænd/sluk-knappen er ikke trykket korrekt ind.	Replace AAA batteries (ET31C). Charge the device using the USB-C cable (ET32C). Ensure the power button is pressed and held until the screen illuminates.
Incorrect readings in Multimeter mode.	Forkert tilstand valgt. Test leads not properly connected. Exceeding input limits.	Bekræft, at den korrekte måletilstand er valgt. Ensure test leads are securely connected to the correct jacks. Refer to specifications and ensure measurements are within limits.
No signal output from Signal Generator.	Output function not enabled. Incorrect parameters set. Output leads not connected.	Ensure the "Output" function is activated on the screen. Check frequency, voltage, and waveform settings. Connect the output lead to the "Output" jack and the component.

9. Garanti og support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact WLLKIY customer service directly. Contact details can typically be found on the manufacturer's official webwebstedet eller på produktemballagen.