User Manual
AC/DC DIGITAL CLAMP METER
Overview
This user manual provides essential information for the safe and effective operation of the AC/DC Digital Clamp Meter. It is recommended to read this manual thoroughly before using the instrument and keep it for future reference.
The HT206D is a handheld digital clamp meter designed for measuring AC and DC voltage, current, resistance, capacitance, frequency, and temperature. It features a robust casing, a clear LCD display showing up to 6000 counts, a trigger-operated jaw for non-contact current measurement, a rotary selector dial for choosing measurement functions, and dedicated buttons for specific operations. It also includes test lead jacks for voltage and resistance measurements, and a battery compartment.
Safety Statement
General Safety Precautions:
- Always use the instrument in a well-ventilated area.
- Keep out of reach of children.
- Handle the instrument with care to avoid damage.
- Do not disassemble the instrument.
- Dispose of batteries properly according to local regulations.
- Use only the specified battery type (3 x 1.5V AAA).
- Avoid exposing the instrument to extreme temperatures or humidity.
Warning:
- Do not use the instrument if it appears damaged, in wet conditions, or if the battery is low.
- Do not exceed the maximum voltage or current ratings specified for each function.
- Ensure the correct function is selected before measurement.
- Avoid touching exposed terminals or conductors when the instrument is in use.
- Do not operate the instrument near explosive gases or in environments with high electromagnetic interference.
- Always disconnect power before opening the instrument for maintenance or battery replacement.
Measurement Description
The clamp meter components are identified as follows:
- Jaw: The opening mechanism used to clamp around a conductor for current measurement.
- Trigger: Located on the handle, used to open and close the jaw.
- Rotary Selector: A dial used to select the desired measurement function (e.g., V~, V-, Ω, A~, A-).
- LCD Display: A digital screen that shows measurement readings and status indicators.
- Function Buttons: Buttons for specific operations like range selection, data hold, or backlight.
- Test Lead Jacks: Ports for connecting the included test leads for voltage, resistance, and continuity measurements.
- Battery Compartment Cover: Located on the back or bottom, providing access to replace the batteries.
Measurement Operation
The clamp meter supports various measurement functions:
- AC/DC Voltage Measurement
- Resistance Measurement
- Continuity Test
- Diode Test
- Capacitance Measurement
- Frequency Measurement
- Temperature Measurement
- AC/DC Current Measurement
Warning: High voltage can be present. Do not touch live wires.
AC/DC Voltage Measurement
1. Select the V~ (AC Voltage) or V- (DC Voltage) function on the rotary selector.
2. Connect the black test lead to the COM jack and the red test lead to the V/Ω/mA jack.
3. Insert the jaws around the conductor to be measured, or connect the test leads to the terminals of the circuit.
4. Read the voltage value displayed on the LCD screen.
Warning: Do not measure voltage higher than 600V.
Resistance Measurement
1. Select the Ω (Resistance) function on the rotary selector.
2. Connect the black test lead to the COM jack and the red test lead to the V/Ω/mA jack.
3. Touch the probes to the component or circuit to be measured.
4. Read the resistance value displayed on the LCD screen.
Warning: Ensure the circuit is de-energized before performing resistance measurements.
Continuity Test
1. Select the continuity function (indicated by a sound wave symbol ?) on the rotary selector.
2. Connect the black test lead to the COM jack and the red test lead to the V/Ω/mA jack.
3. Touch the probes to the component or circuit.
4. An audible beep indicates continuity (low resistance).
Warning: Ensure the circuit is de-energized before performing continuity tests.
Diode Test
1. Select the diode symbol ( D ) on the rotary selector.
2. Connect the black test lead to the COM jack and the red test lead to the V/Ω/mA jack.
3. Touch the probes to the leads of the diode.
4. The forward voltage drop of the diode will be displayed on the LCD screen.
Warning: Ensure the circuit is de-energized before performing diode tests.
Capacitance Measurement
1. Select the F (Capacitance) function on the rotary selector.
2. Ensure the capacitor is fully discharged before measurement.
3. Connect the black test lead to the COM jack and the red test lead to the V/Ω/mA jack.
4. Connect the test leads to the capacitor terminals.
5. Read the capacitance value displayed on the LCD screen.
Warning: Always discharge capacitors before measuring their capacitance to prevent damage to the instrument or personal injury.
Frequency Measurement
1. Select the Hz (Frequency) function on the rotary selector.
2. Insert the jaws around the conductor carrying the signal, or connect the test leads to the signal source.
3. Read the frequency value displayed on the LCD screen.
Warning: Do not measure frequency above 10MHz.
Temperature Measurement
1. Select the °C/°F (Temperature) function on the rotary selector.
2. Connect the temperature probe to the appropriate jacks (usually COM and V/Ω/mA).
3. Place the probe tip on the object whose temperature is to be measured.
4. Read the temperature value displayed on the LCD screen.
Warning: Do not measure temperature above 1000°C.
AC/DC Current Measurement
1. Select the A~ (AC Current) or A- (DC Current) function on the rotary selector.
2. Open the jaws by squeezing the trigger.
3. Clamp the jaws around the conductor carrying the current to be measured.
4. Read the current value displayed on the LCD screen.
Warning: Do not measure current higher than 1000A.
General Technical Specifications
| Parameter | Range |
|---|---|
| DC Voltage | 600mV, 6V, 60V, 600V |
| AC Voltage | 600mV, 6V, 60V, 600V |
| DC Current | 60A, 600A, 1000A |
| AC Current | 60A, 600A, 1000A |
| Resistance | 600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩ |
| Capacitance | 6nF, 60nF, 600nF, 6µF, 60µF, 600µF, 6mF, 60mF |
| Frequency | 10Hz to 10MHz |
| Temperature | -20°C to 1000°C (-4°F to 1832°F) |
| Diode Test | Yes |
| Continuity Test | Yes (Audible Beep) |
| Power | 3 x 1.5V AAA Batteries |
| Dimensions | 210 x 75 x 35 mm |
| Weight | Approx. 240g (including battery) |
Accuracy Specifications
DC Voltage
| Range | Accuracy |
|---|---|
| 600mV | ±(0.5% + 3 digits) |
| 6V, 60V, 600V | ±(0.8% + 3 digits) |
AC Voltage
| Range | Accuracy |
|---|---|
| 600mV | ±(1.0% + 3 digits) |
| 6V, 60V, 600V | ±(1.2% + 3 digits) |
DC Current
| Range | Accuracy |
|---|---|
| 60A | ±(2.0% + 3 digits) |
| 600A, 1000A | ±(2.5% + 3 digits) |
AC Current
| Range | Accuracy |
|---|---|
| 60A | ±(2.0% + 3 digits) |
| 600A, 1000A | ±(2.5% + 3 digits) |
Resistance
| Range | Accuracy |
|---|---|
| 600Ω to 6MΩ | ±(1.0% + 3 digits) |
| 60MΩ | ±(3.0% + 5 digits) |
Capacitance
| Range | Accuracy |
|---|---|
| 6nF to 600µF | ±(4.0% + 5 digits) |
| 6mF, 60mF | ±(5.0% + 5 digits) |
Frequency
| Range | Accuracy |
|---|---|
| 10Hz to 10MHz | ±(0.1% + 3 digits) |
Temperature
| Range | Accuracy |
|---|---|
| -20°C to 1000°C (-4°F to 1832°F) | ±(3.0% + 3 digits) |
Additional Specifications
- Jaw Opening: 42mm
- Display: 6000 counts LCD
- Sampling Rate: Approx. 3 times/sec
- Overload Protection: Yes
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Operating Humidity: <80% RH
- Safety Rating: CAT III 600V, CAT II 1000V
Maintenance
Keep the instrument clean and dry. Clean with a soft, damp cloth. Do not use abrasive cleaners.
Replace the battery when the low voltage indicator appears. Store the instrument in a cool, dry place when not in use.
Battery Replacement
1. Turn off the instrument.
2. Open the battery compartment cover.
3. Replace the old batteries with three new 1.5V AAA batteries of the correct type.
4. Close the battery compartment cover securely.
Warning: Always ensure the circuit is de-energized before performing any maintenance or battery replacement.
Safety Installation or Test
Warning: Do not attempt to repair the instrument yourself. Refer servicing to qualified personnel.
The instrument is marked with the HT logo, CE mark, and RoHS compliant mark.
