Rebel RB-266 Clamp Meter Instruction Manual

1. Introduction

Thank you for choosing the Rebel RB-266 Clamp Meter. This device is a versatile digital multimeter designed for measuring AC/DC voltage, AC current, resistance, temperature, and performing continuity and insulation tests. It features manual range selection, data hold, and a low battery indicator. Please read this manual thoroughly before use to ensure safe and proper operation.

2. Safety Information

WARNING: To avoid electric shock or personal injury, read and understand all safety information before using this product.

• Always ensure the meter is in good working condition before use. Inspect test leads for damage.
• Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and ground.
• Use caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. These voltages pose a shock hazard.
• Always disconnect the test leads from the circuit before changing functions.
• Do not operate the meter with the case open or if the battery cover is not securely closed.
• Replace the battery as soon as the low battery indicator appears to ensure accurate readings.
• Adhere to local and national safety codes.

3. Package Contents

The Rebel RB-266 Clamp Meter package includes the following items:

• Rebel RB-266 Clamp Meter
• Test Leads (Red and Black)
• K-Type Thermocouple
• User Manual

Image: Test leads and K-type thermocouple. These accessories are essential for various measurements, including voltage, resistance, and temperature.

Image: Carrying case. A durable black zippered case is provided for convenient storage and transport of the clamp meter and its accessories.

4. Product Overview

The Rebel RB-266 is a robust clamp meter designed for electrical professionals and DIY enthusiasts. Its key features include:

• Manual Range Selection for precise control over measurement ranges.
• Data Hold function to record the last measured value.
• Low Battery Indicator to alert users when battery replacement is needed.
• Automatic Polarity detection.
• Large LCD display (45 x 21 mm) for clear readings.
• Measures DC Voltage, AC Voltage, AC Current, Resistance, Temperature, Continuity, and Insulation.

Image: Rear view of the clamp meter. This view shows the battery compartment cover and important safety warnings printed on the device.

5. Setup

5.1 Battery Installation

1. Ensure the clamp meter is turned off.
2. Locate the battery compartment cover on the rear of the device.
3. Use a screwdriver to loosen the screw securing the battery cover.
4. Remove the cover and insert a 9V battery, observing the correct polarity.
5. Replace the battery cover and tighten the screw securely.

6. Operating Instructions

Before taking any measurements, ensure the test leads are properly connected to the meter and the function switch is set to the desired measurement type.

6.1 DC Voltage Measurement

1. Set the function switch to the desired DC Voltage range (200mV, 2V, 20V, 200V, 1000V).
2. Connect the red test lead to the 'VΩmA' jack and the black test lead to the 'COM' jack.
3. Connect the test leads across the circuit or component to be measured.
4. Read the voltage value on the display.

6.2 AC Voltage Measurement

1. Set the function switch to the desired AC Voltage range (200V, 750V).
2. Connect the red test lead to the 'VΩmA' jack and the black test lead to the 'COM' jack.
3. Connect the test leads across the AC voltage source.
4. Read the voltage value on the display.

6.3 AC Current Measurement (Clamp Function)

1. Set the function switch to the desired AC Current range (20A, 200A, 1000A).
2. Open the clamp jaws by pressing the trigger.
3. Encircle only one conductor of the circuit with the clamp jaws. Ensure the jaws are fully closed.
4. Read the current value on the display.

6.4 Resistance Measurement

1. Set the function switch to the desired Resistance range (200 ohms, 20 kOhm, 2 MOhm).
2. Connect the red test lead to the 'VΩmA' jack and the black test lead to the 'COM' jack.
3. Ensure the circuit or component to be measured is de-energized.
4. Connect the test leads across the component.
5. Read the resistance value on the display.

6.5 Insulation Test

1. Set the function switch to the Insulation Test range (20 MOhm, 2000 MOhm).
2. Connect the test leads as instructed for insulation testing (refer to specific diagrams if available in the printed manual).
3. Perform the test on the de-energized circuit.
4. Read the insulation resistance value.

6.6 Continuity Test

1. Set the function switch to the Continuity Test position.
2. Connect the red test lead to the 'VΩmA' jack and the black test lead to the 'COM' jack.
3. Touch the test probes across the circuit or component.
4. An audible tone indicates continuity (low resistance).

6.7 Temperature Measurement

1. Set the function switch to the Temperature Measurement position.
2. Connect the K-type thermocouple to the designated input jacks, observing polarity.
3. Place the thermocouple tip on or near the object whose temperature is to be measured.
4. Read the temperature value on the display.

7. Maintenance

7.1 Cleaning

Wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Keep the terminals free from dirt and moisture.

7.2 Battery Replacement

When the low battery indicator appears on the display, replace the 9V battery as described in Section 5.1. Failure to do so may result in inaccurate readings.

8. Troubleshooting

• No Display/Power On: Check battery installation and ensure the battery has sufficient charge. Replace if necessary.
• Inaccurate Readings: Ensure the correct function and range are selected. Check test lead connections. Replace battery if low battery indicator is on.
• No Continuity Tone: Verify the circuit is de-energized. Check test leads for damage.
• "OL" or Overload Indication: The measured value exceeds the selected range. Switch to a higher range or ensure the measurement is within the meter's capabilities.

9. Specifications

10. Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.