KYORITSU Digital True RMS Leakage Clamp Meter KEW 2434 Instruction Manual

1. Product Overview

The KYORITSU KEW 2434 is a high-precision Digital True RMS Leakage Clamp Meter designed for accurate measurement of leakage current. It features a robust design suitable for various electrical testing and maintenance applications, ensuring reliable performance and safety.

Figure 1.1: Front view of the KYORITSU KEW 2434 Leakage Clamp Meter.

Key Features

• Frequency Selector Switch: Eliminates the effect of harmonics for precise readings.
• Minimized External Stray Magnetic Field Effect: Designed to be least affected by external magnetic interference.
• High Precision: Offers a minimum resolution of 0.1mA for detailed measurements.
• Wide Current Range: Capable of measuring up to 400A with a frequency response of 40 - 400Hz.
• Safety Standard Compliance: Meets IEC 61010-1 CAT III 300V and IEC 61010-2-032 safety standards.
• Data Hold Function: Allows for freezing the displayed measurement for convenient reading.

2. What's in the Box

Upon opening the packaging, please verify that all the following items are included and in good condition:

• KYORITSU Digital True RMS Leakage Clamp Meter KEW 2434 (Model: EC-KEW-2434)
• Carrying Case (Model: 9097)
• AAA Batteries (R03, 1.5V) x 2
• Instruction Manual

Figure 2.1: The KEW 2434 Clamp Meter as packaged.

3. Setup

3.1 Battery Installation

1. Locate the battery compartment cover on the rear of the meter.
2. Use a screwdriver to open the battery compartment.
3. Insert two R03 (AAA) 1.5V batteries, ensuring correct polarity (+/-).
4. Replace the battery compartment cover and secure it with the screw.

3.2 Initial Power-On

After battery installation, turn the rotary switch from the 'OFF' position to any measurement function to power on the device. The display will illuminate, indicating it is ready for use.

4. Operating Instructions

4.1 Measuring Leakage Current

1. Set the rotary switch to the desired current range (e.g., 400mA, 4A, 100A).
2. Open the clamp jaws by pressing the jaw release lever.
3. Enclose the conductor (cable) within the clamp jaws. Ensure the jaws are fully closed around the conductor. For leakage current, typically all live and neutral conductors of a circuit are clamped together.
4. Read the current value displayed on the LCD screen.

4.2 Using the Frequency Selector Switch

The KEW 2434 features a frequency selector switch to minimize the impact of harmonics on your measurements. Select the appropriate frequency range (e.g., 50/60Hz or WIDE 40-400Hz) based on the circuit being tested to ensure accurate True RMS readings.

4.3 Data Hold Function

Press the 'DATA HOLD' button to freeze the current reading on the display. This is useful when taking measurements in hard-to-reach areas or when you need to record a stable value. Press the button again to release the hold and resume live readings.

Figure 4.1: Close-up of the KEW 2434 display and control dial.

5. Specifications

Detailed technical specifications for the KYORITSU KEW 2434 Leakage Clamp Meter:

Figure 5.1: Diagram showing key specifications and layout of the KEW 2434.

6. Maintenance

6.1 Cleaning

To maintain the accuracy and longevity of your KEW 2434, regularly clean the meter's exterior with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the meter in water. Ensure the clamp jaws are free of dust and debris.

6.2 Battery Replacement

When the low battery indicator appears on the display, replace the batteries promptly to ensure continued accurate operation. Refer to Section 3.1 for battery installation instructions. Always use fresh, high-quality AAA batteries.

6.3 Storage

When not in use for extended periods, turn the rotary switch to the 'OFF' position and remove the batteries to prevent leakage. Store the meter in its carrying case in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity.

7. Troubleshooting

This section provides solutions to common issues you might encounter with your KEW 2434. If the problem persists, please contact KYORITSU customer support.

8. Safety Information

Always adhere to the following safety precautions when using the KYORITSU KEW 2434 to prevent electric shock or damage to the meter:

• Do not use the meter if it appears damaged or is operating abnormally.
• Ensure the clamp jaws are fully closed around the conductor during measurement.
• Do not exceed the maximum input ratings for each function.
• Always disconnect the meter from the circuit before changing functions or ranges.
• Observe all local and national safety codes.
• This meter is designed for use by qualified personnel.

9. Warranty and Support

For warranty information, technical support, or service inquiries regarding your KYORITSU KEW 2434 Leakage Clamp Meter, please contact KYORITSU customer service or your local authorized distributor. Keep your purchase receipt as proof of purchase.

10. About KYORITSU

KYORITSU is a renowned Japanese manufacturer of high-quality electrical measuring instruments, with a long history of innovation and commitment to precision. Their products are trusted worldwide for their reliability and advanced technology.