1. Ifihan
This manual provides essential information for the safe and effective use of the Testo 750-2 Voltage Tester. Please read these instructions thoroughly before operating the device. Proper use ensures accurate measurements and user safety.
The Testo 750-2 is a robust voltage tester designed for electrical professionals. It features a clear LED display for voltage indication, continuity testing, phase rotation detection, and a built-in flashlight for use in dimly lit environments. It also includes GFCI trip functionality.
2. Alaye Aabo
WARNING: Electrical shock hazard. Failure to follow these instructions may result in serious injury or death.
- Always verify the tester's functionality on a known live source before and after use.
- Ma ṣe lo oluyẹwo ti o ba han pe o bajẹ tabi ko ṣiṣẹ daradara.
- Adhere to all local and national safety regulations for electrical work.
- Wọ àwọn ohun èlò ààbò ara ẹni tó yẹ (PPE), bíi àwọn ibọ̀wọ́ àti àwọn gíláàsì ààbò.
- Maṣe kọja iwọn ti o pọjutagàwọn ìdíyelé e tí a sọ fún ẹ̀rọ náà.
- Avoid working alone when performing electrical measurements.
- Fi ika ọwọ rẹ si ẹhin awọn aabo ika lori awọn ayẹwo idanwo lakoko lilo.
3. Package Awọn akoonu
Ensure all items are present and undamaged upon unpacking:
- Testo 750-2 Voltage Oluyewo
- Awọn batiri 2 x AAA (ti fi sii tẹlẹ tabi pẹlu lọtọ)
- Afowoyi Olumulo (iwe-ipamọ yii)
4. Ọja Ipariview
The Testo 750-2 Voltage Tester consists of two main units connected by a flexible cable. Each unit houses a test probe and controls.

Nọmba 1: Iwaju view of the Testo 750-2 Voltage Tester. Shows the two main units, test probes (L1, L2), and the LED display indicating voltage levels (12V to 690V AC/DC), continuity (Rx), and phase rotation (L/R).

Nọmba 2: Igun view of the Testo 750-2 Voltage Tester, highlighting its ergonomic design and the integrated flashlight button on the left unit.

Nọmba 3: Ẹyìn view of the Testo 750-2 Voltage Tester, showing safety markings and product information.

Nọmba 4: Sun mo tipetipe view of the Testo 750-2 display and controls, showing the voltage indicator LEDs, continuity indicator, phase rotation indicators (L/R), and the flashlight button.
Awọn eroja pataki:
- Test Probes (L1, L2): Fun olubasọrọ pẹlu awọn iyipo itanna.
- Ifihan LED: Tọkasi voltage levels (AC/DC), continuity, and phase rotation.
- Bọtini ina filaṣi: Ó ń mú kí fìlàsí tí a ṣe sínú rẹ̀ ṣiṣẹ́.
- Bọtini Idanwo GFCI: Initiates a GFCI trip test.
- Abala Batiri: Located on the rear of one unit.
5. Eto
5.1. Fifi sori batiri
The Testo 750-2 requires 2 AAA batteries for operation. These are typically included.
- Locate the battery compartment cover on the rear of the tester.
- Use a suitable tool (e.g., a small screwdriver) to open the compartment.
- Fi awọn batiri AAA meji sii, ki o si kiyesi polarity ti o tọ (+/-) gẹgẹ bi a ti fihan ninu yara naa.
- Ni aabo pa ideri kompaktimenti batiri ni aabo.
The device will perform a self-test upon battery installation or when first used, indicated by all LEDs briefly illuminating.
6. Awọn ilana Iṣiṣẹ
6.1. Ofurufutage Idanwo (AC/DC)
Lati wiwọn voltage:
- Ensure the tester is clean and undamaged.
- Connect the L1 and L2 test probes to the points where voltage ni ki won won.
- The LED display will illuminate to indicate the detected voltage level (e.g., 12V, 24V, 50V, 120V, 230V, 400V, 690V).
- Fun DC voltage, the polarity will also be indicated (+/-).
- An audible signal will sound when voltage ti ri.
Note: The Testo 750-2 is designed to provide a clear indication of voltage presence even with discharged batteries, ensuring safety.
6.2. Igbeyewo Ilọsiwaju
To test for continuity (low resistance):
- Ensure the circuit or component is de-energized before testing for continuity.
- Connect the L1 and L2 test probes across the circuit or component.
- If continuity is detected (resistance below a certain threshold), the "Rx" LED will illuminate, and an audible signal will sound.
6.3. Phase Rotation Testing
To determine phase rotation in three-phase systems:
- Connect the L1 probe to the first phase (e.g., L1).
- Connect the L2 probe to the second phase (e.g., L2).
- The "L" or "R" LED will illuminate to indicate the direction of the rotating magnetic field (left or right).
- For a complete three-phase test, connect the L1 probe to L1, L2 probe to L2, then L1 probe to L2, L2 probe to L3, and finally L1 probe to L3, L2 probe to L1, observing the sequence.
6.4. GFCI Trip Test
To test Ground Fault Circuit Interrupter (GFCI) functionality:
- Connect the L1 and L2 test probes to the live and ground terminals of the GFCI-protected outlet or circuit.
- Press and hold the GFCI test button on the tester.
- The GFCI device should trip, interrupting power to the outlet/circuit.
- Release the button and reset the GFCI device.
CAUTION: This test will temporarily cut power to the circuit. Ensure no critical equipment is connected or that appropriate precautions are taken.
6.5. Itumọ ti Flashlight
To activate the flashlight, press the flashlight button located on one of the tester units. Press again to turn it off. This feature is useful for illuminating dark work areas.
7. Itọju
7.1. Ninu
Clean the tester regularly with a damp Aṣọ. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun èlò ìfọṣọ. Rí i dájú pé ẹ̀rọ náà gbẹ kí o tó kó o pamọ́ tàbí kí o tó lò ó.
7.2. Batiri Rirọpo
When the battery low indicator appears (if applicable) or the device's performance degrades, replace the batteries as described in Section 5.1. Always use new AAA batteries of the same type.
7.3. Ibi ipamọ
Store the tester in a dry, clean environment, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
8. Laasigbotitusita
- No Indication / Device Not Turning On:
- Ṣayẹwo fifi sori batiri ati polarity.
- Rọpo awọn batiri pẹlu awọn tuntun.
- Ensure probes are making good contact with the test points.
- Awọn kika ti ko ni ibamu:
- Verify the tester on a known live source.
- Ṣàyẹ̀wò fún àwọn ìtọ́wò tàbí àwọn ìwádìí tí ó bàjẹ́.
- Ensure proper contact with the circuit.
- GFCI Test Not Tripping:
- Ensure the GFCI outlet/circuit is properly wired and functional.
- Confirm the tester is connected correctly (live to ground).
- If the GFCI still does not trip, the GFCI device itself may be faulty and requires inspection by a qualified electrician.
If problems persist, contact Testo customer support.
9. Awọn pato
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Nọmba awoṣe | 0590 7502 |
| Voltage Ibiti | 12V to 690V AC/DC |
| Igbeyewo Ilọsiwaju | Yes (audible and visual) |
| Igbeyewo Yiyi Alakoso | Yes (L/R indication) |
| GFCI Trip Function | Bẹẹni |
| Ina filaṣi | Ti a ṣe sinu |
| Orisun agbara | 2 x AAA batiri (pẹlu) |
| Awọn iwọn Ọja (L x W x H) | 10.63 x 2.56 x 1.38 inches |
| Iwọn Nkan | 9.17 iwon (260 Giramu) |
| Olupese | Testo, Inc. |
| Ilu isenbale | Orilẹ Amẹrika |
10. atilẹyin ọja Information
Testo, Inc. products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Testo webojula. Jeki ẹri rira rẹ fun awọn iṣeduro atilẹyin ọja.
11. Atilẹyin ati Olubasọrọ
For technical support, service, or further information regarding your Testo 750-2 Voltage Tester, please contact Testo, Inc. directly:
- Webojula: www.testo.com
- Refer to the official Testo website for regional contact details and support resources.





