KAIWEETS HT200B Digital Clamp Meter User Manual

Introduction

The HT200B is a cost-effective AC clamp meter. It is compact, easy to use, and suitable for daily work.

Safety Information

Warnings: Read First

To avoid possible electric shock or personal injury, please obey the following instructions:

• Use the Meter only as specified in this manual or the protection provided by the Meter might be impaired.
• Avoid working alone so assistance can be rendered.
• Never measure AC current while the test leads are inserted into the input sockets.
• Do not use the Meter in wet or dirty environments.
• Inspect the test leads before use. Do not use them if insulation is damaged or metal is exposed.
• Check the test leads for continuity. Replace damaged test leads before using.
• Use extreme caution when working around bare conductors or bus bars. Contact with the conductor could result in electric shock.
• Do not hold the Meter anywhere beyond the tactile barrier.
• When measuring current, center the conductor in the clamp.
• Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth ground.
• Remove test leads from the Meter before opening the Meter case.
• Never operate the Meter with the back cover removed or the case open.
• Never remove the back cover or open the case of an instrument without first removing the test leads or the jaws from a live conductor.
• Use caution when working with voltages above 30 V ac RMS, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard.
• Do not attempt to measure any voltage that might exceed the maximum range of the Meter - 600 V RMS.
• Do not operate the Meter around explosive gas, vapor or dust.
• When using probes, keep fingers behind the finger guards.
• When making electrical connections, connect the common test lead before connecting the live test lead; when disconnecting, disconnect the live test lead before disconnecting the common test lead.
• Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, or diodes.
• Check the operation of the meter at a known source before and after use.

Product Overview

The KAIWEETS HT200B features:

• (1) Current Sensing Clamp
• (2) Trigger
• (3) Rotary Function Switch
• (4) LED Indicator
• (5) Function Buttons (FUNC., MAX, HOLD/Backlight)
• (6) LED Display Screen
• (7) COM Terminal (Black test lead)
• (8) INPUT Terminal (Red test lead)

The device is powered by 2 x AAA (1.5V) batteries.

Safety Explanation

Function Buttons

• MAX: Press the "MAX" button to display the maximum value. Press and hold the button for more than 2 seconds to exit "MAX" mode.
• HOLD/Backlight: The HOLD function holds the currently displayed measured value on the display so that it can be read or logged. Press this button to turn on or off data hold. Press this button to turn on or off the backlight. Make sure that the HOLD function is deactivated at the start of a test, otherwise an incorrect measurement result might be simulated.
• FUNC.: Press the "FUNC." key to switch the respective secondary function between the different measurements for applications accessible via the function switch, such as between AC and DC.

Operating Instructions

Insert and replace batteries

⚠️ Attention

• Please use the same type of batteries; do not use substandard batteries.
• In order to ensure safe operation and maintenance of the instrument, please take out the battery when not in use for a long time, to prevent damage to the product caused by battery leakage.

Replace the batteries immediately when the low battery symbol [□] appears in the display. Disconnect the meter from the power source. Remove the test leads from the measuring device, loosen the screws on the back, remove the lower half of the housing, replace the old batteries, and screw the cover back on.

Turn on/off the meter

The device is switched on when the rotary switch (3) is set to a measuring function. When the rotary switch is set to OFF, the measuring device is switched off.

Automatic shutdown

If no operation is performed for 15 minutes, the clamp meter beeps 3 times. Without further operation, the clamp meter beeps again and switches off automatically. Press any key to restore the clamp meter to operating status. The symbol [O] appears on the display. To deactivate the automatic switch-off, hold down the "FUNC." key for more than 2 seconds and switch on the clamp meter at the same time. The symbol [O] disappears. Restart after switching off the meter; the automatic switch-off can be restored.

Auto-ranging

The meter automatically selects the measuring range that is best suited for the measurement performed. The measuring unit and resolution are adjusted accordingly.

Connecting Test Leads

Do not test if leads are improperly seated, as results could cause intermittent display readings. To ensure proper connection, firmly press leads into the jack completely.

Incorrect connection example: Probe tip exposed beyond the insulated sleeve.

Correct connection example: Probe tip fully inserted into the jack.

Measurement Operation

AC current measurement

The current is measured via the current clamp (1). The sensors in the current clamp detect the magnetic field created by current-carrying conductors. You can take measurements on insulated and non-insulated conductors.

The test leads should be disconnected from the measuring device when measuring current.

1. Estimate the current range (2 A, 20 A, or 200 A) and turn the knob to the desired range.
2. Press the clamp release lever and open the clamp.
3. Grasp the individual current conductor to be measured and close the current clamp again.

The conductor must be placed in the center of the clamp for accurate readings; otherwise, additional errors may occur.

The measured current is shown on the display. If the current is > 3 A, the orange display backlight illuminates.

Attention:

• Do not use the current clamp to surround more than one conductor.
• If the supply and return conductors (e.g., L and N) are measured together, the currents will cancel each other out, and no measurement will be displayed. A cable separator is required to measure with the current probe if measuring both L and N conductors of household appliances.
• If several supply conductors are measured, the currents add up.
• Center the conductor through the current clamp (above the markings).
• Hold your fingers behind the tactile barrier.

AC/DC voltage measurement

△ Voltage above 600 V cannot be measured! When measuring high voltage, pay special attention to safety to avoid electric shock or injury.

1. Turn the knob to ∽ (DC Voltage) or ∼ (AC Voltage).
2. Plug the black test lead into the COM socket and the red test lead into the INPUT socket.
3. Bring the test probes into contact with the points to be measured.
4. Read the result on the display. If the voltage is > 80 V, the orange display backlight illuminates.

Attention:

• The voltage above 600V cannot be measured; otherwise, the instrument may be damaged.
• Pay special attention to safety when measuring high voltage to avoid electric shock or personal injury.
• Test the known voltage with the meter before use to confirm the function is intact.

Resistance measurement Ω

△ Do not apply a voltage above 10 V! Make sure that the power supply to the circuit is disconnected and all capacitors are discharged.

1. Turn the rotary function switch to "Ω" for resistance measurement. It displays "MΩ" on the screen.
2. Turn off the circuit under test.
3. Plug the black test lead into the COM socket and the red test lead into the INPUT socket.
4. Place the test probes in contact with the points at which the resistance must be measured.
5. Read the result on the display.

Note: When measuring resistance on a circuit, the measured value can be influenced by other parallel circuits.

Overload protection: 250 V

Continuity test ▶※

Do not apply a voltage above 10 V! Make sure that the power supply to the circuit is disconnected and all capacitors are discharged.

1. Turn the rotary switch to "Ω" and press the "FUNC." key several times until ▶※ appears on the display. The continuity test is now active.
2. Plug the red test lead into the INPUT socket and the black test lead into the COM socket.
3. Connect the probes to the circuit or component under test.
4. If the resistance is < 30 Ω, an acoustic signal sounds continuously, and the orange backlight lights up.

Note: When measuring resistance on a circuit, the measured value can be influenced by other parallel circuits.

Open circuit voltage: approx. 2V

Overload protection: 250V

Diode Test

△ Do not apply a voltage above 10 V! Make sure that the power supply to the circuit is disconnected and all capacitors are discharged.

1. Turn the rotary function switch to "Ω". Press the "FUNC." key 2 times until ▶ appears on the display.
2. Remove power from the circuit being tested.
3. Connect the black test lead to the COM terminal and the red test lead to the INPUT terminal.
4. Connect the black test lead to the cathode side and the red test lead to the anode side of the diode being tested.
5. Read the forward bias voltage value on the LCD.
6. If the polarity of the test leads is reversed relative to the diode polarity, the LCD reading shows "OL". This can be used for distinguishing the anode and cathode sides of a diode.

Test voltage approx. 2 V

Overload protection: 250 V

Capacitance measurement

1. Turn the knob to ∫.
2. Insert the red probe into the INPUT socket and the black probe into the COM socket.
3. Contact the probes to the capacitance.
4. Read the measurement result on the screen.

Attention:

When measuring capacitance on the line, disconnect the power supply and discharge all high-voltage capacitors. Otherwise, the instrument may be damaged and may cause electric shocks.

Note: If the capacitance is > 100 uF, it will take a long time to measure correctly.

Overload protection: 250 V

Specification

• Display: 2000 counts
• Measuring impedance: 10 MΩ (V range)
• Operating voltage: 2 x AAA (1.5V)
• Weight: approx. 240 g
• Dimension: 180 mm x 100 mm x 136 mm
• Security standard: IEC 61010-1, IEC 61010-2-032, IEC 61010-031 CATIII 600V
• Pollution level: 2
• Operating temperature: 0 to +40 °C
• Operating humidity: <80%
• Operating height: 0 to max. 2000 m
• Storage temperature: -10 to +60 °C
• Air humidity in storage: <70%

Accuracy

Maintenance

Warning

• To avoid electrical shock, disconnect test leads from the Meter before removing its back cover. Never use the Meter with the back cover removed.
• Repairs or servicing not covered in this manual should be performed only by qualified personnel.

Caution

• To avoid contamination or static damage, do not touch the circuit board without proper static protection.
• If the Meter is not going to be used for a long time, remove the battery. Do not store the Meter in a high temperature or high humidity environment.

Cleaning the Meter

• To avoid damaging the meter, do not use abrasives or solvents on this instrument.
• Periodically clean the Meter by wiping it with a damp cloth and mild detergent.
• Do not get water inside the case. This may lead to electrical shock or damage to the instrument.
• Wipe the contacts in the socket with a clean cotton swab soaked in alcohol.

Three Year Warranty

KAIWEETS will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase, provided that:

• Proof of purchase is produced.
• Service/repairs have not been attempted by unauthorized persons.
• The product has been subject to fair wear and tear.
• The product has not been misused.

Defective products will be repaired or replaced, free of charge or at KAIWEETS' discretion, if sent together with proof of purchase to an authorized distributor.

For further detail of warranty coverage and warranty repair information, send an email to support@Kaiweets.com.

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