1. Introduction
The Kyoritsu 2608A is a versatile analog clamp meter designed for electrical measurements. It integrates five essential functions into a single unit, allowing for precise measurement of AC current, AC voltage, DC voltage, resistance, and temperature (with an optional probe). Its robust design, including tear-drop shaped jaws, facilitates ease of use in confined spaces, while shielded banana plugs and recessed input terminals ensure user safety. This meter complies with international safety standard IEC61010-CAT.III300V. This manual provides detailed instructions for the safe and effective operation and maintenance of your Kyoritsu 2608A clamp meter.
2. Safety Information
WARNING: Always read and understand all safety instructions before operating the meter. Failure to do so may result in serious injury or death.
- This meter complies with international safety standards IEC 61010-1 CAT III 300V Pollution Degree 2, IEC 61010-2-031, and IEC 61010-2-032.
- Do not use the meter if it appears damaged or if the test leads are damaged.
- Ensure the function selector is set to the correct range before making any measurements.
- Never attempt to measure voltage or current beyond the specified maximum ratings.
- Always disconnect power to the circuit before making resistance measurements.
- Use caution when working with live circuits. Wear appropriate personal protective equipment (PPE).
- Do not operate the meter in wet environments or explosive atmospheres.
- Replace batteries promptly when the low battery indicator appears to ensure accurate readings.
3. Product Overview
The Kyoritsu 2608A features an intuitive design for ease of use. Familiarize yourself with the main components:
- Clamp Jaws: Used for non-contact AC current measurement.
- Function Selector Dial: Rotates to select the desired measurement function (AC A, AC V, DC V, Ω, Temp).
- Analog Display: Provides measurement readings via a pointer on a calibrated scale.
- Input Terminals:
- V: Positive input for voltage and resistance measurements.
- COM (FUSED): Common (negative) input for voltage and resistance measurements.
- Ω: Input for resistance measurements.
- Temp: Input for temperature probe (optional).
- Pointer Lock Device: Freezes the pointer reading on the analog display for easier observation.
4. Setup
4.1 Battery Installation
- Ensure the meter is turned off.
- Locate the battery compartment cover on the back of the meter.
- Open the cover and insert one R6 (AA) 1.5V battery, observing correct polarity.
- Close the battery compartment cover securely.
4.2 Connecting Test Leads
For voltage, resistance, and temperature measurements, connect the test leads as follows:
- Insert the black test lead into the "COM (FUSED)" terminal.
- Insert the red test lead into the "V" terminal for voltage measurements or the "Ω" terminal for resistance measurements.
- For temperature measurements, connect the optional Temperature Probe 7060 to the designated "Temp" input.
5. Operating Instructions
Always ensure the meter is set to the correct function and range before making any measurement.
5.1 Measuring AC Current (AC A)
- Rotate the function selector dial to the desired AC A range (6A, 15A, 60A, 150A, or 300A).
- Open the clamp jaws by pressing the trigger.
- Encircle only one conductor of the circuit with the clamp jaws. Ensure the jaws are fully closed.
- Read the AC current value from the analog display.
- Use the pointer lock device if needed to hold the reading.
5.2 Measuring AC Voltage (AC V)
- Connect the black test lead to "COM (FUSED)" and the red test lead to "V".
- Rotate the function selector dial to the desired AC V range (150V, 300V, or 600V).
- Connect the test probes in parallel across the circuit or component to be measured.
- Read the AC voltage value from the analog display.
5.3 Measuring DC Voltage (DC V)
- Connect the black test lead to "COM (FUSED)" and the red test lead to "V".
- Rotate the function selector dial to the DC V range (60V).
- Connect the test probes in parallel across the circuit or component to be measured, observing polarity.
- Read the DC voltage value from the analog display.
5.4 Measuring Resistance (Ω)
- Ensure the circuit under test is de-energized and all capacitors are discharged.
- Connect the black test lead to "COM (FUSED)" and the red test lead to "Ω".
- Rotate the function selector dial to the desired Resistance range (1/10kΩ).
- Touch the test probes across the component to be measured.
- Read the resistance value from the analog display.
5.5 Measuring Temperature (Temp)
This function requires the optional Temperature Probe 7060.
- Connect the Temperature Probe 7060 to the designated "Temp" input terminals.
- Rotate the function selector dial to the "Temp" position.
- Place the probe tip on or near the object whose temperature is to be measured.
- Read the temperature value from the analog display.
6. Maintenance
6.1 Cleaning
Wipe the meter casing with a soft, dry cloth. Do not use abrasive cleaners or solvents. Keep the test leads clean and free from debris.
6.2 Battery Replacement
When the low battery indicator appears on the display, replace the R6 (AA) 1.5V battery as described in Section 4.1. Remove the battery if the meter is not going to be used for an extended period.
6.3 Storage
Store the meter in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the function selector is in the OFF position before storage.
7. Troubleshooting
- No reading or erratic readings:
- Check if the battery is properly installed and has sufficient charge.
- Ensure test leads are securely connected and not damaged.
- Verify the function selector is set to the correct measurement type and range.
- For current measurements, ensure only one conductor is clamped.
- Inaccurate readings:
- Confirm the correct range has been selected.
- Ensure proper contact between test probes and the circuit.
- Check for external electromagnetic interference.
If problems persist, contact customer support or a qualified technician.
8. Specifications
| Parameter | Value |
|---|---|
| AC Current Ranges | 6A, 15A, 60A, 150A, 300A |
| AC Voltage Ranges | 150V, 300V, 600V |
| AC Accuracy | ±3% of Full Scale (FS) |
| DC Voltage Range | 60V |
| DC Accuracy | ±3% of Full Scale (FS) |
| Resistance Ranges | 1/10kΩ (25/250Ω mid-scale) |
| Resistance Accuracy | ±2% of scale length |
| Temperature Range | -20 to 150°C (with optional Temperature Probe 7060) |
| Temperature Accuracy | ±5°C (0 to 100°C), ±10°C (Other Ranges) |
| Max. Conductor Size | Ø33mm |
| Frequency Response | 50/60Hz |
| Safety Standard | IEC 61010-1 CAT III 300V Pollution Degree 2, IEC 61010-2-031, IEC 61010-2-032 |
| Withstand Voltage | 3700V AC for 1 minute |
| Power Source | R6 (AA) 1.5V battery |
| Dimensions | 193 x 78 x 39 mm |
| Weight | Approx. 275 g |
| Place of Origin | Japan |
9. User Tips
- Zero Adjustment: For analog meters, it's good practice to check and adjust the pointer to zero before taking measurements, especially for resistance, to ensure accuracy.
- Range Selection: Always start with the highest possible range when measuring an unknown value to prevent overloading the meter. Then, select a lower range for better resolution if necessary.
- Analog Reading: When reading the analog scale, ensure you are looking directly at the pointer to avoid parallax errors.
10. Warranty & Support
For warranty information, technical support, or service inquiries, please refer to the official Kyoritsu website or contact your authorized dealer. Keep your purchase receipt as proof of purchase.
