Eina de rendiment W2972
Performance Tool W2972 Automotive Digital Multimeter Instruction Manual
Model: W2972
1. Introducció
This manual provides instructions for the safe and effective use of the Performance Tool W2972 Automotive Digital Multimeter. This device is designed for standard electrical testing on automotive systems and general electrical components, offering functions such as voltage, resistance, current, tachometer, and dwell measurements.
2. Informació de seguretat
Read all safety warnings and instructions before operating this device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always use the provided UL-listed test leads and probes.
- The multimeter features overload protection on all ranges; however, avoid exceeding the maximum input values specified for each function.
- Exercise caution when working with live electrical circuits.
- Advertència de la proposta 65: Aquest producte pot contenir productes químics coneguts per l'estat de Califòrnia per causar càncer i defectes de naixement o altres danys reproductius. Rentar-se les mans després de la manipulació.
3. Producte acabatview
The Performance Tool W2972 is a digital automotive multimeter featuring an extra-large, easy-to-read LCD display. It is equipped with UL-listed test leads for reliable and safe measurements.
Característiques principals:
- Digital Automotive Multimeter functionality.
- Measures and sets typical automotive functions including tachometer (RPM) and dwell.
- Extra-large, easy-to-read LCD display.
- UL-listed test leads, measuring 42 inches (3.5 feet) long.
- Automatic reverse polarity indication.
- Overload protection on all ranges.
Components:

Descripció de la imatge: Un angle frontal view of the Performance Tool W2972 Digital Multimeter. The device is green with a black rotary dial, a large LCD screen, and input jacks at the bottom. A kickstand is visible at the back.

Descripció de la imatge: The red and black UL-listed test leads for the Performance Tool W2972 Multimeter. The leads are coiled, and the probes with removable caps are shown detached from the main lead body.
4. Configuració
4.1 Instal·lació de la bateria
The Performance Tool W2972 requires two AAA batteries, which are included. To install or replace batteries:
- Localitzeu la tapa del compartiment de la bateria a la part posterior del multímetre.
- Feu servir un tornavís per treure el cargol que fixa la tapa.
- Introduïu dues piles AAA, observant la polaritat correcta (+/-) tal com s'indica a l'interior del compartiment.
- Col·loqueu la coberta i fixeu-la amb el cargol.
4.2 Connexió dels cables de prova
Connect the test leads to the appropriate input jacks on the multimeter:
- Introduïu el cable de prova negre al COM (common) jack.
- Introduïu el cable de prova vermell al VΩmA jack for voltage, resistència i mesures de baix corrent.
- Per a mesures de corrent elevat (fins a 10 A), inseriu el cable de prova vermell al 10A MAX FUSED jack.
5. Instruccions de funcionament
The rotary dial on the front of the multimeter is used to select the desired measurement function and range.
5.1 Funcionament general
- Turn the rotary dial to the desired function (e.g., V for voltage, Ω for resistance, A for current).
- Connect the test probes to the circuit or component being tested.
- Read the measurement on the large LCD display. The multimeter features automatic reverse polarity indication.
- Premeu el botó MANTENIM per congelar la lectura actual a la pantalla. Premeu-la de nou per alliberar-la.
5.2 Automotive Specific Functions
The W2972 is equipped with specific settings for automotive diagnostics, including tachometer (RPM) and dwell measurements.

Descripció de la imatge: A Performance Tool W2972 Multimeter displaying a voltage reading while connected to a car battery in an engine bay. A person wearing blue gloves is using the test probes.

Descripció de la imatge: A Performance Tool W2972 Multimeter displaying a resistance reading while connected to a small green circuit board. A person wearing blue gloves is using the test probes.
Tachometer (RPM) Measurement:
- Gireu el dial giratori cap a RPMx10 configuració.
- Select the appropriate cylinder setting (4CYL, 6CYL, 8CYL) for the engine being tested.
- Connect the red test lead to the negative terminal of the ignition coil or the tachometer test point, and the black lead to a good ground.
- Start the engine and read the RPM value on the display. Multiply the reading by 10 for the actual RPM.
Dwell Measurement:
- Gireu el dial giratori cap a MORADA configuració.
- Select the appropriate cylinder setting (4CYL, 6CYL, 8CYL) for the engine being tested.
- Connect the red test lead to the negative terminal of the ignition coil or the dwell test point, and the black lead to a good ground.
- Start the engine and read the dwell angle on the display.
Voltage Testing (Starting, Charging, Fuel Delivery Systems):
- Select the appropriate DC Voltage (V–) range.
- Connect the red test lead to the positive point of the circuit (e.g., battery positive terminal, alternator output) and the black test lead to a good ground.
- Llegeix el voltage a la pantalla.
Diode Function:
- Turn the rotary dial to the diode symbol (→|–).
- Connecteu el cable de prova vermell a l'ànode i el cable de prova negre al càtode del díode.
- A forward voltage drop will be displayed for a good diode. Reverse the leads; an open circuit (OL) should be displayed.
6. Manteniment
6.1 Canvi de fusibles
The multimeter is protected by a fuse. If the current measurement function stops working, the fuse may need replacement.
- The multimeter uses a F0.5AL250V 5X20mm fuse.
- To replace the fuse, open the battery compartment cover as described in Section 4.1.
- Carefully remove the old fuse and insert a new fuse of the correct type and rating.
- Col·loqueu la coberta i fixeu-la amb el cargol.
6.2 Neteja
Netegeu el multímetre casing amb anunciamp tela. No utilitzeu netejadors abrasius ni dissolvents.
7. Solució De Problemes
- Sense pantalla o pantalla tènue: Comproveu la instal·lació i la càrrega de la bateria. Canvieu les bateries si cal.
- Lectures incorrectes: Ensure test leads are properly connected and the correct function/range is selected. Verify the component being tested is functioning correctly.
- La mesura de corrent no funciona: Check and replace the fuse (refer to Section 6.1).
- RPM/Dwell readings inconsistent or zero: Ensure proper connection to the ignition system and correct cylinder setting. Verify engine is running smoothly.
8. Especificacions
| Especificació | Detall |
|---|---|
| Model | W2972 |
| Marca | Eina de rendiment |
| Tipus de mesura | Multímetre |
| Font d'alimentació | Battery Powered (2 AAA batteries, included) |
| Tipus de fusible | F0.5AL250V 5X20mm |
| Longitud del cable de prova | 42 polzades (3.5 peus) |
| Pes de l'article | 16 unces (1 lliura) |
| Dimensions del producte (L x A x A) | 6.5 x 2 x 10.6 polzades |
9. Garantia i Suport
This Performance Tool W2972 Automotive Digital Multimeter comes with a Garantia limitada d'1 any. For warranty claims or technical support, please refer to the contact information provided with your purchase or visit the official Performance Tool weblloc.
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