성능 도구 W2972
Performance Tool W2972 Automotive Digital Multimeter Instruction Manual
모델 : W2972
1. 서론
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. 안전 정보
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.
- 제안 65 경고: 이 제품에는 캘리포니아 주에서 암, 선천적 기형 또는 기타 생식 장애를 유발하는 것으로 알려진 화학 물질이 포함되어 있을 수 있습니다. 취급 후에는 손을 씻으십시오.
3. 제품 오버view
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.
주요 특징:
- 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.
- 모든 범위에 과부하 보호 기능이 있습니다.
구성 요소:

이미지 설명: 정면 각도 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.

이미지 설명: 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. 설정
4.1 배터리 설치
The Performance Tool W2972 requires two AAA batteries, which are included. To install or replace batteries:
- 멀티미터 뒷면에서 배터리 칸 덮개를 찾으세요.
- 드라이버를 사용하여 덮개를 고정하는 나사를 제거하십시오.
- 배터리 칸 내부에 표시된 극성(+/-)을 확인하여 AAA 배터리 2개를 삽입하십시오.
- 커버를 교체하고 나사로 고정합니다.
4.2 테스트 리드 연결
테스트 리드를 멀티미터의 해당 입력 단자에 연결하십시오.
- 검은색 테스트 리드를 코. (일반적인) 잭.
- 빨간색 테스트 리드를 VΩmA 잭 포 볼륨tage, 저항 및 저전류 측정.
- 고전류 측정(최대 10A)의 경우 빨간색 테스트 리드를 삽입하십시오. 최대 10A 퓨즈 장착 잭.
5. 사용 설명서
The rotary dial on the front of the multimeter is used to select the desired measurement function and range.
5.1 일반 작업
- 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.
- 를 누르세요 잡고 있다 버튼을 누르면 디스플레이에 현재 측정값이 고정됩니다. 다시 누르면 고정이 해제됩니다.
5.2 Automotive Specific Functions
The W2972 is equipped with specific settings for automotive diagnostics, including tachometer (RPM) and dwell measurements.

이미지 설명: 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.

이미지 설명: 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:
- 회전 다이얼을 RPMx10 환경.
- 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:
- 회전 다이얼을 머무르다 환경.
- 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.
권tage 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.
- vol을 읽어보세요tag디스플레이에 e.
Diode Function:
- Turn the rotary dial to the diode symbol (→|–).
- 빨간색 테스트 리드를 다이오드의 양극에, 검은색 테스트 리드를 음극에 연결하십시오.
- 전진 볼륨tage drop will be displayed for a good diode. Reverse the leads; an open circuit (OL) should be displayed.
6. 유지관리
6.1 퓨즈 교체
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.
- 커버를 교체하고 나사로 고정합니다.
6.2 청소
멀티미터를 닦으세요asin광고가 있는 gamp 천. 연마성 세척제나 용매를 사용하지 마십시오.
7. 문제 해결
- 화면이 아예 안 나오거나 아주 희미하게 나옵니다. 배터리 설치 상태와 충전 상태를 점검하십시오. 필요한 경우 배터리를 교체하십시오.
- 잘못된 판독: Ensure test leads are properly connected and the correct function/range is selected. Verify the component being tested is functioning correctly.
- 현재 측정 기능이 작동하지 않습니다. 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. 사양
| 사양 | 세부 사항 |
|---|---|
| 모델 | W2972 |
| 상표 | 성능 도구 |
| 측정 유형 | 멀티미터 |
| 전원 | 배터리 작동식 (AAA 배터리 2개 포함) |
| 퓨즈 타입 | F0.5AL250V 5X20mm |
| 테스트 리드 길이 | 42인치(3.5피트) |
| 품목 무게 | 16온스(1파운드) |
| 제품 크기(L x W x H) | 6.5 x 2 x 10.6 인치 |
9. 보증 및 지원
This Performance Tool W2972 Automotive Digital Multimeter comes with a 1년 한정 보증. For warranty claims or technical support, please refer to the contact information provided with your purchase or visit the official Performance Tool web대지.