KC-C - Multimeter Megger - Free user manual and instructions

Product type	Digital multimeter with insulation testing
Display	LCD, 6000 counts, backlit
DC voltage range	0.1 mV to 1000 V
AC voltage range	0.1 mV to 750 V
DC current range	0.1 µA to 10 A
AC current range	0.1 µA to 10 A
Resistance range	0.1 Ω to 40 MΩ
Insulation resistance	Up to 2000 MΩ at 250 V/500 V/1000 V
Capacitance	1 nF to 100 µF
Frequency	10 Hz to 1 MHz
Temperature	-20 °C to 1000 °C (with thermocouple)
Continuity test	Yes, with buzzer
Diode test	Yes
True RMS	Yes
Safety rating	CAT III 1000 V, CAT IV 600 V
Power supply	9V alkaline battery (6LR61)
Auto power off	Yes, after 15 minutes
Dimensions (H×W×D)	200 mm × 100 mm × 50 mm
Weight	500 g (with battery)
Operating temperature	0 °C to 40 °C
Storage temperature	-10 °C to 50 °C
Humidity	≤ 80% RH non-condensing
Included accessories	Test leads, alligator clips, temperature probe, carrying case, manual

Frequently Asked Questions - KC-C Megger

How do I measure insulation resistance with the Megger KC-C?

Select the insulation resistance mode using the rotary dial. Choose the test voltage (250V, 500V, or 1000V) with the range button. Connect the test leads to the device under test (isolated from power). Press the TEST button and read the resistance value in MΩ. Always discharge capacitive circuits after testing.

What is the maximum voltage the KC-C can measure?

The Megger KC-C can measure up to 1000 V DC and 750 V AC (RMS) in voltage mode. For insulation testing, it applies up to 1000 V DC. Ensure you observe safety ratings: CAT III 1000 V and CAT IV 600 V.

How do I replace the battery?

Turn off the multimeter and disconnect test leads. Remove the battery compartment screw on the back. Lift the cover and replace the 9V alkaline battery (6LR61). Reattach the cover and screw. Dispose of old battery properly.

How should I clean the KC-C?

Wipe the exterior with a soft, dry cloth. For stubborn dirt, use a cloth dampened with mild soap and water. Do not use solvents or abrasives. Avoid getting moisture inside the meter. Clean test leads with a dry cloth.

What does the continuity buzzer indicate?

In continuity mode, the buzzer sounds when the resistance between the test leads is less than approximately 50 Ω. This is useful for checking fuses, wires, and switch contacts. Ensure the circuit is de-energized before testing.

Can I measure current above 10 A?

The Megger KC-C is not designed for currents above 10 A in the current jacks. For higher currents, use a clamp accessory (not included). Never exceed 10 A for more than 30 seconds to avoid damage.

How do I perform a diode test?

Turn the dial to the diode/continuity position. Connect the red lead to the anode and black to the cathode of the diode. The display shows the forward voltage drop (typically 0.5-0.8 V for silicon diodes). A reverse connection should show OL (open).

Why does the display show OL?

OL means Over Limit, indicating the reading exceeds the selected range or the input is open. Check your range selection and ensure test leads are properly connected. For resistance, OL may mean an open circuit. For voltage, it means exceeded range.

How often should the KC-C be calibrated?

Megger recommends annual calibration to maintain accuracy. If the meter is used heavily or exposed to harsh conditions, more frequent calibration may be needed. Send it to an accredited calibration lab.

What safety precautions should I take?

Always wear appropriate PPE. Never measure voltage above 1000 V DC or 750 V AC. Use CAT III/IV rated leads. Ensure the meter is set to the correct function before connecting. Do not use if the meter or leads are damaged. Disconnect test leads before changing the battery or range.

USER MANUAL KC-C Megger

Exterior view of a black cable spool with various test probes and connectors (no visible text or symbols)

KC-C Reels

Safety Warnings and Operation

For use with the DLRO2

User Guide

WARNING

1. WARNING

These warnings must be read and understood before use:

■ The lead set is intended only for use with the Megger DLRO2; it must not be used with other measuring instruments

Read the safety warnings provided with the DLRO2 before use

Before use, inspect the lead set for wear and damage. Probes, wires and connectors must be in good order, clean and dry with no broken or cracked insulation

■ Damaged lead sets must NOT be used

■ The lead set is rated only for connection to low voltage circuits: <30 V at a maximum of 2 A

The safe connection rating is that of the lowest rated item in the measurement circuit which comprises instrument, probe assembly and accessories.

Do NOT connect this lead set to mains circuits

■ The lead set is rated for indoor and outdoor use

■ Operating environment between 0 °C and +50 °C, <95% RH

The safe altitude for use is < 3.000m above sea level

If the lead set is used in a manner not specified by the manufacturer, the protection provided by the test lead may be impaired

■ Mass: KC100C: 7.6 kg. KC50C and KC50E: 4.4 kg

2. Operation

This test lead is intended for use with a Megger DLRO2 to measure bonded conductors. For example, the resistance of lightning receptors to earth for large equipment in production, or in-situ during commissioning or maintenance, or following repair
The KC series enable construction of long test leads in 50 m increments suitable for testing large structures.
A test lead will consist of the appropriate instrument connector and asset clips at each end of a KC50C (50 m) or KC100C (100 m) lead. One or two KC50E (50 m) extension leads may be added to the assembly to extend the length.
For assemblies using more than one cable, the KC50E extension reel should be unwound and removed from its drum first: lift the extension cable connector from the slot in the drum and pass it though the hole in the drum wall. Connect the extension to the next cable to be unwound and repeat the process.
■ Ensure that 4 mm test terminals are correctly connected to the DLRO2: mating red to red and black to black
All tests must be carried out in accordance with the equipment manufacturers' procedures and test limits
Before testing tall structures, ensure that any static potential is fully discharged by connecting an additional ground wire to the installed lightning protection cable at the base of the structure
- When working with tall structures, consider the risks from carrying heavy equipment and unreeling cables at height. Arrange a safe procedure to protect those working below and at height during setting-up, testing and removing the test connections, especially when bad weather, high winds or precipitation add to the risk

Local Sales office

Megger Limited

Archcliffe Road

Dover

Kent

CT17 9EN

ENGLAND

T.+44(0)1304502101

F. [phone]

Manufacturing sites

Megger Limited

Archcliffe Road

Dover

Kent

CT17 9EN

ENGLAND

T.+44 (0)1 304 502101

F. [phone]

Megger GmbH

Weststraße 59

52074 Aachen

T. [phone]

E. [e-mail]

Megger USA - Valley Forge

Valley Forge Corporate Center

2621 Van Buren Avenue

Norristown

Pennsylvania, 19403

USA

T.+1 610 676 8500

F. [phone]

Megger USA - Dallas

4545 West Davis Street

Dallas TX 75237

USA

T. 800 723 2861 (USA only)

T.+1 214 333 3201

F. [phone]

E. [e-mail]

Megger AB

This instrument is manufactured in the United Kingdom.

The company reserves the right to change the specification or design without prior notice.

Megger is a registered trademark

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc and is used under licence.

KC100C-KC50C-KC50E_2013-576_UG-SW_en_V02 10 2021

© Megger Limited 2021 www.megger.com