1. Alaye Aabo pataki
Read, understand, and follow all warnings and instructions before operating the Klein Tools ET310 AC Circuit Breaker Finder and GFCI Outlet Tester.
- Ṣaaju lilo kọọkan, rii daju iṣẹ idanwo nipasẹ idanwo lori ifiwe laaye ati gbigba ti firanṣẹ ni deede ati iyika.
- MAA ṢE lo ti oluyẹwo ba farahan ni eyikeyi ọna.
- Nigbagbogbo kan si alagbawo ẹrọ itanna to peye lati yanju awọn iṣoro onirin.
- Oluyẹwo jẹ ipinnu fun lilo inu ile nikan.
- Oluyẹwo jẹ apẹrẹ fun lilo pẹlu awọn ọna itanna 120V AC. MAA ṢE sopọ si voltage awọn ohun elo itanna.
- If using accessories to connect to bare wires, ensure that the circuit is not energized before inspecting, applying, or removing the transmitter.
- Ṣọra gidigidi ni ayika agbara, awọn onirin igboro, pataki nigbati o ba n ṣiṣẹ ni tabi ni ayika igbimọ fifọ ṣiṣi.
2. Ọja Ipariview
The Klein Tools ET310 is a two-part system designed to accurately locate the correct circuit breaker in a panel connected to an electrical outlet or fixture. It also features an integrated GFCI outlet tester for inspecting wiring conditions and testing GFCI devices.

Image 1: The Klein Tools ET310, showing both the Receiver and Transmitter units.
Awọn ẹya pataki:
- Accurate Circuit Breaker Identification: Quickly and precisely locates the correct breaker.
- Two-Part System: Consists of a Transmitter (plugs into outlet) and a Receiver (scans breaker panel).
- Clear Indications: The Receiver provides both visual and audible cues when the correct breaker is found.
- Ibamu gbooro: Operates on 90-120V AC circuits.
- Built-in GFCI Tester: The Transmitter includes a GFCI outlet tester to check wiring and GFCI functionality.
- Ibi ipamọ to rọ: The Transmitter docks into the Receiver for compact storage.
- Asopọmọra gbogbo agbaye: Three-pin plug for North-American style grounded electrical outlets.

Image 2: Diagram highlighting key features such as visual/audible indicators, GFCI testing, and integrated storage.
3. Eto
3.1 Fifi sori batiri
The Klein Tools ET310 Receiver requires one 9V battery (included). Ensure the battery is correctly installed before use.
- Locate the battery compartment on the Receiver unit.
- Ṣii ideri iyẹwu naa.
- Insert one 9V battery, observing the correct polarity (+/-).
- Pa ideri batiri naa ni aabo.
3.2 Ibẹrẹ Ṣayẹwo
Before using the ET310 for any task, always perform an initial check on a known live and correctly wired outlet to confirm proper functionality.
4. Awọn ilana Iṣiṣẹ
4.1 Using the GFCI Outlet Tester (Transmitter)
The Transmitter unit can be used independently to test the wiring condition of a standard North-American style grounded electrical outlet and to test GFCI devices.
- Plug the Transmitter into the outlet you wish to test.
- Observe the LED indicators on the Transmitter. Refer to the "Wiring Condition Codes" table below for interpretation.
- To test a GFCI outlet, press the "PUSH TO CHECK GFCI" button on the Transmitter. A working GFCI should trip, cutting power to the outlet. Reset the GFCI after testing.

Image 3: The Transmitter unit plugged into a wall outlet for testing.
Wiring Condition Codes:
| Awọn itọkasi | Ipo itọkasi |
|---|---|
| Imọlẹ Paa | Ko si Agbara |
| Ṣi Ilẹ | Ṣi Ilẹ |
| Ṣii Adurodeji | Ṣii Adurodeji |
| Ṣii Gbona | Ṣii Gbona |
| Hot & Ground Reversed | Hot & Ground Reversed |
| Hot & Neutral Reversed | Hot & Neutral Reversed |
| Hot On Neutral With Hot Open | Hot On Neutral With Hot Open |
| GFCI Testing In Progress | GFCI Testing In Progress |
| Wiregbe ti o tọ | Wiregbe ti o tọ |

Aworan 4: alaye view of the Transmitter's GFCI test button and LED indicators for wiring conditions.
4.2 Locating a Circuit Breaker
To find the circuit breaker for a specific outlet or fixture, follow these steps:
- So Atagba: Plug the Transmitter into the electrical outlet or fixture whose circuit breaker you want to locate. Ensure the outlet is live (powered).
- Mura Olugba naa: Turn on the Receiver unit.
- Scan the Breaker Panel: Go to your electrical service panel. Slowly move the tip of the Receiver over each circuit breaker.
- Identify the Breaker: The Receiver will provide both visual (flashing LED) and audible (beeping) indications when it detects the signal from the Transmitter. The strongest and most consistent signal indicates the correct circuit breaker.
- Jẹrisi: Once a breaker is identified, turn it off. Check if the power to the outlet/fixture where the Transmitter is plugged in has been cut. If so, you have found the correct breaker.

Image 5: The Receiver unit scanning a circuit breaker panel to identify the correct breaker.
Tip for Accuracy: For best results, when scanning the breaker panel, move the Receiver tip across each breaker individually, lifting it slightly between each breaker rather than dragging it continuously. This helps the tool "learn" the panel and provides more precise identification.
5. Itọju
5.1 Ninu
Wipe the unit with a dry, lint-free cloth. Do not use abrasive cleaners or solvents.
5.2 Ibi ipamọ
When not in use, dock the Transmitter into the Receiver for compact and secure storage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.

Image 6: The Transmitter unit securely docked into the Receiver for convenient storage.
5.3 Batiri Rirọpo
Replace the 9V battery in the Receiver when the low battery indicator appears or if the unit does not power on. Refer to Section 3.1 for battery installation instructions.
6. Laasigbotitusita
- Inaccurate Breaker Identification:
- Ensure the Transmitter is securely plugged into a live outlet.
- Scan the breaker panel slowly and deliberately, moving the Receiver tip across each breaker individually, lifting it slightly between each one. Avoid dragging the tip continuously.
- Minimize electrical interference from other devices or wiring near the panel.
- If the panel is very old or messy, consider removing the breaker panel cover (only if qualified and with extreme caution) to scan the wires directly, as suggested by some users.
- No Indication from Receiver:
- Check if the Receiver is powered on.
- Verify the 9V battery in the Receiver is installed correctly and has sufficient charge. Replace if necessary.
- Ensure the outlet where the Transmitter is plugged in is live and correctly wired (check with the GFCI tester function).
- GFCI Test Button Does Not Trip GFCI:
- Ensure the outlet is a GFCI-protected outlet.
- Verify the outlet is live and correctly wired using the Transmitter's LED indicators.
- If the GFCI still does not trip, the GFCI outlet may be faulty and should be inspected by a qualified electrician.
7. Awọn pato
| Ẹya ara ẹrọ | Ẹ̀kúnrẹ́rẹ́ |
|---|---|
| Nọmba awoṣe | ET310 |
| Ọja Mefa | 10.96 x 2.16 x 1.39 inches |
| Iwọn Nkan | 7.2 iwon |
| Orisun agbara | Battery Powered (1 x 9V battery included for Receiver) |
| Awọn ọna Voltage | 90-120V AC |
| Olupese | Awọn irinṣẹ Klein |
| Ọjọ Akọkọ Wa | Oṣu Kẹrin Ọjọ 15, Ọdun 2019 |
8. Atilẹyin ọja ati Support
Fun alaye atilẹyin ọja ati atilẹyin alabara, jọwọ tọka si Awọn irinṣẹ Klein osise webojula tabi kan si wọn onibara iṣẹ taara. Tọju iwe-ẹri rira rẹ fun awọn ẹtọ atilẹyin ọja.
Ibi iwifunni: Jọwọ ṣabẹwo www.kleintools.com fun awọn titun support oro ati olubasọrọ awọn alaye.





