KF-LAB MkII - Measurement Megger - Free user manual and instructions
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| Product Type | Leakage Current Clamp Meter |
| Brand | Megger |
| Model | KF-LAB MkII |
| Measurement Category | CAT III 300 V, CAT IV 150 V |
| AC Current Range | 0.01 mA to 10 A |
| AC Voltage Range | 0.1 V to 300 V |
| Frequency Range | 15 Hz to 1 kHz |
| Basic Accuracy | ±1 % ±5 digits |
| Jaw Opening | 30 mm |
| Display | LCD with backlight, 4000 counts |
| Data Hold | Yes |
| Min/Max/Avg Recording | Yes |
| Auto Power Off | Yes, after 15 minutes |
| Low Battery Indication | Yes |
| Power Supply | 1 x 9 V alkaline battery (IEC 6LR61) |
| Battery Life | Approximately 100 hours |
| Dimensions | 240 x 70 x 40 mm |
| Weight | 350 g (including battery) |
| Operating Temperature | 0 °C to 50 °C |
| Storage Temperature | -20 °C to 60 °C |
| Humidity | Up to 85 % RH (non-condensing) |
| Safety Standards | IEC 61010-1, IEC 61010-2-032 |
| Ingress Protection | IP40 |
| Accessories Included | Carrying case, test leads, battery, manual |
| Cleaning | Wipe with a damp cloth, no solvents |
Frequently Asked Questions - KF-LAB MkII Megger
How do I measure leakage current with the KF-LAB MkII?
Set the rotary switch to the A~ (AC current) range. Clamp the jaw around the conductor or ground wire. Read the value on the display. Ensure the conductor is centered in the jaw for accurate measurement.
What is the maximum conductor size for the clamp?
The jaw opening is 30 mm, suitable for conductors up to about 300 kcmil or a diameter of 30 mm.
How do I replace the battery?
Turn off the meter and disconnect test leads. Slide the battery cover off at the back. Replace the 9 V battery with a new alkaline type. Close the cover securely.
Why does the display show 'OL'?
'OL' means overload. The measured current or voltage exceeds the selected range. Switch to a higher range or reduce the input.
Can I measure DC current with this meter?
No, the KF-LAB MkII is designed for AC current measurement only. It does not measure DC current.
How often should I calibrate the KF-LAB MkII?
Megger recommends annual calibration to maintain specified accuracy. Send the meter to an accredited calibration laboratory.
What does the auto power off feature do?
The meter automatically turns off after 15 minutes of inactivity to conserve battery. You can disable this by pressing the 'Hold' button while turning on.
How do I clean the meter?
Use a soft, damp cloth with mild soap if needed. Do not use abrasive cleaners or solvents. Avoid getting water inside the clamp or display.
What safety precautions should I take?
Always use the meter within its rated category (CAT III 300 V). Inspect leads for damage before use. Do not use in wet conditions. Follow the safety instructions in the manual.
Where can I find the user manual?
The user manual is included in the box and also available for free download in PDF format from the Megger website or notice-facile.com.
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