WLLKIY ET31C/ET32C Automotive Signal Generator Multimeter User Manual

1. Okwu mmalite

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. Ozi nchekwa

Biko gụọ ma ghọta ịdọ aka ná ntị nchekwa niile na ntuziaka ọrụ tupu i jiri ngwa a. Ọ bụrụ na i meghị ihe ndị a, ọ nwere ike ibute mgbawa eletriki, ọkụ, ma ọ bụ mmerụ ahụ dị njọ.

Always wear appropriate personal protective equipment, such as safety glasses, when working on vehicles.
Ejila ngwaọrụ ahụ ma ọ bụrụ na o yiri ka ọ mebiri emebi ma ọ bụ ma ọ bụrụ na ihe nlele ahụ emebiela.
Ensure the device is powered off before connecting or disconnecting test leads.
Avoid contact with live circuits.
Do not exceed the maximum input ratings specified in the specifications section.
Debe ngwaọrụ ahụ ka ọ ghara iru mmiri na oke okpomọkụ.

3. Ihe ngwugwu

Chọpụta na ihe niile edepụtara n'okpuru dị na ngwugwu gị:

1 x Signal Generator Multimeter (ET31C or ET32C model)
1 x Ụzọ ụzọ nnwale
1 x Pair of Alligator Clip Wires
1 x USB Type-C Cable (for ET32C charging, or data for both)
1 x Akwụkwọ ntuziaka onye ọrụ Bekee

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. Nhazi

4.1 Ịnye Ike na Ngwaọrụ

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 Njikọ Ndị Nnwale Nlele

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 Jack: Ntinye dị mma maka voltage, nguzogide, ugboro ole, ike, diode, na nhụta n'ihu.
Jack mmepụta: Positive output for signal generation.

5. Ntuziaka ọrụ

5.1 Ịgbanwe n'etiti ụdịdị

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 Signal Generator Functions

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

Signal Types: Sine wave, Square wave, Combined wave (e.g., 58+2, 10+1 missing teeth), Scan wave, and DC wave.
Oke ugboro: 1Hz to 9999Hz (adjustable in 1Hz steps).
Mmepụta Voltage (Peak-to-Peak): -12V to +12V (adjustable in 1V steps).
Duty Cycle (for Square Wave): 1% ruo 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.
Waveform Storage: 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 Multimeter Functions

In multimeter mode, the device performs standard electrical measurements.

DC Voltage: Max 1000V.
AC Voltage: Max 750V.
Nguzogide: Max 40MΩ.
Ike: Max 100uF.
Ugboro: Max 50KHz.
Usoro ọrụ: 0.1% ruo 99.9%.
Nnwale diode: 0V ruo 1.5V.
Nnwale na-aga n'ihu: Resistance value for continuity detection: Max 30Ω.
Ngosipụta: 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. Nkọwapụta

6.1 Nkọwa n'ozuzu

Ngosipụta: 2.8-inch, 320 * 480 resolution
Ihuenyo mmetụ aka: akwadoghị
Njikọ USB: -Dị-C USB
Battery (ET31C): 3 * 1.5V AAA batteries (not included)
Battery (ET32C): Batrị lithium 4.2V arụnyere n'ime ya
Okpomọkụ nchekwa: -20°C ruo 60°C (-4°F ruo 140°F)
Okpomọkụ arụ ọrụ: 0°C ruo 50°C (32°F ruo 122°F)
iru mmiri: <85% RH (na-adịghị ekpokọta)
Akụkụ ngwaahịa (LxWxH): 134 mm * 69 mm * 25 mm
Arọ ngwaahịa: 125 g (excluding accessories)

6.2 Signal Generator Parameters

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
Mmepụta Voltage Oke: -12V ~ + 12V
Mmepụta Voltage Nzọụkwụ: 1V
Coil Control Power: Less than 30V/1A
Waveform Storage: 50 setịpụ
Duty Setting (for Square Wave only): 1% ~ 99%

6.3 Multimeter Parameters

Ntinye DC kacha elu Voltage: 1000V
Ntinye AC kacha elu 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: 0 ~ 1.5V
Maximum Resistance for Continuity Detection: 30Ω
Display Counts: 4000 na-agụta
Ọnụego mmelite: 3 ugboro kwa nkeji

7. Nlekọta

Nhicha: Jiri nwayọ hichaa ngwaọrụ ahụ, damp akwa . Ejila ihe nchacha abrasive ma ọ bụ ihe mgbaze.
Nchekwa: 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.
Nleba ule: Inspect test leads for any damage (cuts, cracks) before each use. Replace damaged leads immediately.

8. Nchọpụta nsogbu

Nsogbu	Ihe nwere ike ime	Ngwọta
Ngwaọrụ anaghị agbanwu ọkụ.	Low or dead batteries (ET31C). Discharged internal battery (ET32C). Apịghị bọtịnụ ike nke ọma.	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.	ahọpụtara ọnọdụ ezighi ezi. Test leads not properly connected. Exceeding input limits.	Verify the correct measurement mode is selected. 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. Akwụkwọ ikike na nkwado

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 websaịtị ma ọ bụ na nkwakọ ngwaahịa.