Produkt overview
The Cen-Tech Digital Clamp-On Multimeter is a versatile electrical testing instrument designed for measuring AC/DC voltage, AC current, and resistance. It also features an insulation test function. Its clamp-on design allows for non-contact measurement of AC current, enhancing safety and convenience.

Figur 1: Forside view of the Cen-Tech Digital Clamp-On Multimeter in its retail packaging. The packaging highlights key features such as clamp-style measurement, data hold, 500 volt resistance, and diode test capabilities.

Figur 2: Bagside view of the Cen-Tech Digital Clamp-On Multimeter packaging. This view provides additional specifications and features, including low power indicator, included 9V battery, and dimensions.
Sikkerhedsforanstaltninger
Always observe the following safety precautions when using the multimeter to prevent electric shock or personal injury, and to avoid damage to the meter or the equipment under test.
- Påfør ikke mere end den nominelle voltage, as marked on the meter, between the terminals or between any terminal and ground.
- Vær yderst forsigtig, når du arbejder med voltages over 60V DC eller 30V AC RMS. Sådan voltages udgør en stødfare.
- Before making resistance measurements, disconnect power to the circuit and discharge all high-voltage kondensatorer.
- Do not use the meter if it appears damaged or if the insulation on the test leads is compromised.
- Ensure the function switch is in the correct position for the measurement being taken.
- Hold fingrene bag fingerbeskytterne på testledningerne under brug.
- Replace the battery immediately when the low battery indicator appears to ensure accurate readings.
Opsætning
Udpakning og inspektion
Carefully remove the multimeter and its accessories from the packaging. Inspect all components for any signs of damage. If any damage is found, contact customer support immediately.
Installation af batteri
The multimeter requires a 9V battery (included). To install or replace the battery:
- Sørg for, at multimeteret er slukket.
- Find batteridækslet på bagsiden af enheden.
- Use a screwdriver to remove the screw securing the cover.
- Gently lift the cover and connect the 9V battery to the battery clip, observing correct polarity.
- Place the battery into the compartment and replace the cover, securing it with the screw.
Tilslutning af prøveledninger
Insert the black test lead into the "COM" (common) jack and the red test lead into the "VΩmA" jack for voltage, resistance, and small current measurements. For AC current measurements using the clamp, test leads are not required unless simultaneous voltage readings are needed.
Betjeningsvejledning
This section details how to perform various measurements with your Cen-Tech Digital Clamp-On Multimeter.
Måling AC/DC Voltage
- Set the function switch to the desired ACV (Alternating Current Voltage) or DCV (Direct Current Voltage) range. If the voltage is unknown, start with the highest range and decrease as necessary.
- Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
- Connect the test leads in parallel to the circuit or component you wish to measure.
- Læs bindtage -værdi på LCD -displayet.
Measuring AC Current (Clamp Fungere)
- Set the function switch to the ACA (Alternating Current Amperes) range.
- Åbn clamp jaws by pressing the trigger.
- Enclose only one conductor of the circuit within the clamp kæber. Sørg for, at kæberne er helt lukkede.
- Aflæs den aktuelle værdi på LCD-displayet.
- Note: Klamp measures current flowing through a single conductor. Do not clamp around multiple conductors (e.g., a power cord with both live and neutral wires) as the magnetic fields will cancel out, resulting in an inaccurate or zero reading.
Måling af modstand
- Ensure the circuit or component is de-energized before measuring resistance. Disconnect power and discharge any capacitors.
- Set the function switch to the Ω (Ohms) range.
- Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
- Connect the test leads across the component whose resistance you want to measure.
- Read the resistance value on the LCD display.
Diodetest
- Set the function switch to the diode symbol (usually shared with continuity or resistance).
- Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
- Connect the red test lead to the anode and the black test lead to the cathode of the diode. A forward voltage drop (e.g., 0.5V to 0.8V for silicon diodes) should be displayed.
- Reverse the test leads. The display should show "OL" (Open Loop) for a good diode.
Opretholdelse
Rensning
Tør sagen af med annonceamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the meter is completely dry before use.
Udskiftning af batteri
Refer to the "Battery Installation" section under Setup for instructions on replacing the 9V battery when the low battery indicator appears on the display.
Udskiftning af sikring
This model typically does not have user-replaceable fuses for current ranges measured by the clamp. For internal fuse replacement (if applicable for other functions), it is recommended to contact qualified service personnel.
Opbevaring
When not in use for extended periods, remove the battery to prevent leakage and store the multimeter in a cool, dry place away from direct sunlight and extreme temperatures.
Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Intet display eller svagt display | Tæt eller lavt batteri | Udskift 9V batteriet. |
| "OL" (Overbelastning) vises | Measurement exceeds selected range; Open circuit (for resistance/continuity) | Select a higher range; Check for open circuit in the component or test leads. |
| Unøjagtige aflæsninger | Low battery; Incorrect range selected; External interference | Replace battery; Select appropriate range; Move away from strong electromagnetic fields. |
| No AC current reading with clamp | Clamping around multiple conductors (e.g., a power cord) | Ensure only a single conductor is within the clamp kæber. |
Specifikationer
- Model: 66897/95652
- AC/DC Voltage Område: As per product specifications (typically up to 600V)
- AC strømområde: As per product specifications (typically up to 600A)
- Modstandsområde: As per product specifications (typically up to 20MΩ)
- Diode test: Ja
- Magt: 9V batteri (inkluderet)
- Vise: LCD
- Dimensioner: 9" x 3-1/4" x 1-1/2"
- Vægt: 454 g
Note: Specific ranges may vary slightly. Refer to the product packaging or official documentation for precise specifications.
Garanti og support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your product packaging or visit the official Cen-Tech webwebsted. Behold din købskvittering som købsbevis i tilfælde af garantikrav.
Fabrikant: Cen-Tech
ASIN: B00JKSOG8U
UPC: 792363668972





