KAIWEETS HT200B AC Clamp Meter User Manual

1. Introduction

Thank you for choosing the KAIWEETS HT200B AC Clamp Meter. This device is a compact, auto-ranging digital clamp meter designed for measuring AC current, AC/DC voltage, capacitance, continuity, resistance, and diode. It is suitable for various electrical testing applications in residential, commercial, and industrial settings. Please read this manual thoroughly before use to ensure safe and proper operation.

Figure 1: KAIWEETS HT200B AC Clamp Meter. This image displays the overall design of the clamp meter, showing the red clamp jaw, black body, rotary dial, function buttons, and digital display.

2. Safety Information

WARNING: To avoid electric shock or personal injury, please read and follow all safety instructions carefully.

• Always adhere to local and national safety codes.
• Do not use the meter if it appears damaged or if the test leads are damaged.
• Do not apply more than the rated voltage, as marked on the meter, between the terminals or between any terminal and earth ground.
• Exercise extreme caution when working with voltages above 60V DC or 30V AC RMS. Such voltages pose a shock hazard.
• Keep fingers behind the finger guards on the test leads during use.
• Do not measure AC current on uninsulated conductors.
• The KAIWEETS HT200B is rated CAT III 600V. Ensure the measurement category is appropriate for your application.
• This device measures AC current only. It does not measure DC current.
• Replace batteries when the low battery indicator appears to ensure accurate readings.

3. Product Overview

The KAIWEETS HT200B features a robust design for reliable performance. Key components include:

• Clamp Jaw: Used for non-contact AC current measurement.
• Rotary Dial: Selects measurement functions.
• LCD Display: Shows measurement readings and indicators.
• Function Buttons: For specific features like HOLD, MAX, and backlight.
• Input Jacks: For connecting test leads for voltage, resistance, capacitance, continuity, and diode measurements.

Figure 2: Clamp Jaw Design. This image highlights the clamp jaw of the HT200B, showing its opening mechanism and a measurement of 26mm, indicating its capacity for clamping around conductors.

4. Setup

4.1. Battery Installation

1. Ensure the meter is turned OFF.
2. Locate the battery compartment cover on the back of the meter.
3. Use a screwdriver to open the battery compartment.
4. Insert two (2) AAA batteries, observing correct polarity (+ and -).
5. Replace the battery compartment cover and secure it with the screw.

5. Operating Instructions

5.1. AC Current Measurement

The HT200B can measure AC current up to 200A. It features auto-ranging for convenience.

1. Turn the rotary dial to the '2A', '20A', or '200A' AC current range. The meter will automatically select the appropriate range within the chosen setting.
2. Open the clamp jaw by pressing the trigger.
3. Enclose only one conductor (live or neutral) within the clamp jaw. Do not clamp around multiple conductors or an entire cable, as this will result in an inaccurate reading of zero.
4. Read the AC current value on the LCD display.
5. If the current exceeds 3A, the display backlight will turn orange as a warning.

Important: This meter measures AC current only. It cannot measure DC current.

Figure 3: Measuring AC Current with HT200B. This image shows the HT200B clamp meter actively measuring AC current by clamping around a single conductor, displaying a reading of 9.47A.

5.2. AC/DC Voltage Measurement

To measure AC or DC voltage:

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary dial to the 'V~' for AC voltage or 'V=' for DC voltage setting.
3. Connect the test leads in parallel to the circuit or component you wish to measure.
4. Read the voltage value on the LCD display.
5. If the voltage exceeds 80V, the display backlight will turn orange as a warning.

Figure 4: Measuring AC Voltage with HT200B. This image illustrates the HT200B measuring AC voltage using its test leads, showing a reading of 389V.

5.3. Capacitance Measurement

To measure capacitance:

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary dial to the capacitance symbol (typically '†').
3. Ensure the capacitor is fully discharged before connecting the test leads.
4. Connect the test leads across the capacitor terminals.
5. Read the capacitance value on the LCD display.

Figure 5: Capacitance Measurement with HT200B. This image shows the HT200B measuring the capacitance of a component, displaying a reading of 10.02 uF.

5.4. Continuity Test

To perform a continuity test:

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary dial to the continuity symbol (typically a speaker icon).
3. Connect the test leads across the circuit or component.
4. If the resistance is below a certain threshold (usually around 50 ohms), the meter will emit an audible beep, indicating continuity.

5.5. Resistance Measurement

To measure resistance:

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary dial to the resistance symbol (Ω).
3. Ensure the circuit or component is de-energized before measurement.
4. Connect the test leads across the component.
5. Read the resistance value on the LCD display.

5.6. Diode Test

To test a diode:

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary dial to the diode symbol (→|←).
3. Connect the red test lead to the anode and the black test lead to the cathode of the diode. A forward voltage drop (e.g., 0.5V to 0.8V for silicon diodes) should be displayed.
4. Reverse the test leads. The display should show 'OL' (Open Loop), indicating no conduction.

5.7. Special Functions

• HOLD: Press the 'HOLD' button to freeze the current reading on the display. Press again to release.
• MAX: Press the 'MAX' button to capture and display the maximum measured value. Press again to exit.
• Backlight: Press the backlight button (often combined with another function) to illuminate the display for better visibility in low-light conditions.
• Auto Power Off: The meter will automatically power off after a period of inactivity to conserve battery life.
• Orange Display Warning: The display backlight will turn orange if AC current exceeds 3A or voltage exceeds 80V, indicating a potentially high-energy situation.

6. Maintenance

6.1. Cleaning

Wipe the meter with a damp cloth and mild detergent. Do not use abrasives or solvents. Ensure the meter is completely dry before use.

6.2. Battery Replacement

When the low battery indicator appears on the display, replace the batteries as described in Section 4.1. Remove batteries if the meter will not be used for an extended period.

7. Troubleshooting

• No Display: Check battery installation and ensure batteries are not depleted.
• Inaccurate Readings: Ensure correct function selection, proper test lead connection, and that the circuit is de-energized for resistance/capacitance measurements. For current, ensure only one conductor is within the clamp.
• 'OL' on Display: Indicates an over-range condition or an open circuit.
• Meter Does Not Turn On: Check batteries. If issues persist, contact customer support.

8. Specifications

Figure 6: KAIWEETS HT200B Size Comparison. This image shows the HT200B next to another clamp meter, illustrating its compact dimensions of 6.4*2.4*1.2 inches (163*60*30mm).

9. Warranty and Support

KAIWEETS products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official KAIWEETS website. Keep your purchase receipt as proof of purchase for warranty claims.