HYTAIS TS-18D Digital Clamp Meter

1. Introduction

The HYTAIS TS-18D is a professional digital clamp meter designed for accurate and efficient electrical measurements. It features True RMS measurement, non-contact voltage detection (NCV), live wire identification, auto-ranging, and data retention. With its robust safety features and user-friendly design, it is an essential tool for electricians, maintenance personnel, and DIY enthusiasts.

2. Safety Information

Please read and understand all safety warnings and operating instructions before using this instrument. Failure to observe safety warnings can result in serious injury or death.

• Do not input voltage higher than 600V. Exceeding this limit will damage the internal wiring of the meter.
• When measuring high voltage, ensure hands do not touch the metal part of the test leads to avoid the danger of electric shock.
• Before opening the back cover of the meter (e.g., for battery replacement), ensure that the test leads are not connected to any circuit under test.
• Always check that the back cover is tightly closed before using the meter.
• If the "- +" symbol appears on the display, the battery needs to be replaced immediately to ensure accurate readings and proper operation.
• The meter features 600V overload protection across its full range to prevent burnout from short-circuits or mismeasurements.

3. Product Overview

3.1. Key Features

• True RMS Measurement: Provides accurate readings for non-sinusoidal waveforms.
• Non-Contact Voltage (NCV) Detection: Safely identifies live wires without direct contact.
• Live Wire Identification: Quickly locates live wires for safer maintenance.
• Auto Range: Automatically selects the appropriate measurement range.
• Data Retention (HOLD): Freezes the current measurement on the display.
• HD Backlit Display: 6000 counts display with backlight for clear visibility in all lighting conditions.
• Flashlight: Built-in light for working in dark environments.
• Large Jaws: 27mm jaw opening to easily clamp onto thick cables.
• Automatic Shutdown: Power-saving feature to extend battery life.
• Low Battery Reminder: Alerts when battery replacement is needed.

4. Specifications

5. Setup

5.1. Battery Installation

1. Ensure the clamp meter is turned OFF and no test leads are connected to any circuit.
2. Locate the battery compartment on the back of the meter.
3. Use a screwdriver to open the battery compartment cover.
4. Insert two (2) 1.5V AAA batteries, observing the correct polarity (+ and -).
5. Replace the battery compartment cover and secure it with the screw.
6. If the "- +" symbol appears on the display during operation, replace the batteries promptly.

5.2. Initial Power-On

Turn the rotary switch from OFF to any desired measurement function to power on the device. The HD backlit display will illuminate, showing the current measurement mode.

6. Operating Instructions

The HYTAIS TS-18D features an auto-ranging function, simplifying measurements. Select the desired function using the rotary switch.

6.1. AC/DC Current Measurement

1. Turn the rotary switch to the 'A~' (AC Current) or 'A=' (DC Current) position.
2. Open the clamp jaws by pressing the trigger.
3. Enclose a single conductor (not a bundle of wires) with the clamp jaws. Ensure the jaws are fully closed.
4. Read the current value on the display.

6.2. AC/DC Voltage Measurement

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the 'V~' (AC Voltage) or 'V=' (DC Voltage) position.
3. Connect the test leads in parallel to the circuit or component you wish to measure.
4. Read the voltage value on the display.

Note: Do not input voltage higher than 600V. When measuring high voltage, hands should not touch the metal part of the test leads to avoid electric shock.

6.3. Resistance Measurement (Ω)

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the 'Ω' (Resistance) position.
3. Ensure the circuit or component is de-energized before connecting the test leads across it.
4. Read the resistance value on the display.

6.4. Capacitance Measurement (nF/mF)

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the 'nF' (Capacitance) position.
3. Ensure the capacitor is fully discharged before connecting the test leads across it.
4. Read the capacitance value on the display.

6.5. Frequency Measurement (Hz)

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the 'Hz' (Frequency) position.
3. Connect the test leads to the signal source.
4. Read the frequency value on the display.

6.6. Temperature Measurement (℃/℉)

1. Insert the temperature probe into the 'INPUT' and 'COM' jacks, observing polarity if applicable.
2. Turn the rotary switch to the 'TEMP' position.
3. Place the tip of the temperature probe on or near the object whose temperature you wish to measure.
4. Read the temperature value on the display.

6.7. NCV (Non-Contact Voltage) Detection

1. Turn the rotary switch to the 'NCV' position.
2. Move the front end of the clamp meter close to the conductor or electrical outlet.
3. If AC voltage is detected, the indicator light will flash, and an audible buzzer will sound.

6.8. Diode Test

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the Diode symbol position.
3. Connect the test leads across the diode. A forward voltage drop will be displayed for a good diode.

6.9. Continuity Test (Buzzer)

1. Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack.
2. Turn the rotary switch to the Continuity symbol position.
3. Connect the test leads across the circuit or component. An audible beep indicates continuity.

6.10. Live Wire Identification

1. Turn the rotary switch to the 'Live' position.
2. Use one test lead (typically red) to touch the conductor. The meter will indicate if it's a live wire.

Caution: When measuring high voltage frequency, hands should not touch the metal part of the meter pen to avoid the risk of electric shock.

6.11. Data Hold (HOLD Button)

Press the 'HOLD' button to freeze the current reading on the display. Press it again to release and resume live measurements.

6.12. Backlight and Flashlight

• The display backlight can be activated for better visibility in low-light conditions.
• Press the dedicated flashlight button to turn on the built-in flashlight for illuminating the work area.

7. Maintenance

7.1. Cleaning

Wipe the meter with a dry, soft cloth. Do not use abrasives or solvents. Keep the device free from dust and moisture.

7.2. Storage

When not in use for an extended period, remove the batteries to prevent leakage. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.

7.3. Battery Replacement

As indicated in the Setup section, replace the two 1.5V AAA batteries when the low battery indicator ("- +") appears on the display. Always ensure the meter is off and disconnected from any circuits before opening the battery compartment.

8. Troubleshooting

• No display/Meter won't turn on: Check battery installation and ensure batteries are not depleted. Replace if necessary.
• Inaccurate readings: Ensure test leads are properly connected. Check battery level. Verify the correct measurement function is selected.
• NCV not detecting: Ensure the NCV function is selected and the meter is close enough to the AC voltage source.
• No continuity beep: Check if the circuit is open or if the component is faulty.
• Display shows "OL" (Overload): The measured value exceeds the selected range. Switch to a higher range if available, or ensure the input is within the meter's maximum specifications.

9. User Tips

• For current measurements, always clamp around a single conductor, not an entire cable with multiple wires, to get an accurate reading.
• Utilize the data hold function (HOLD button) when taking measurements in hard-to-reach or poorly lit areas to record the reading before moving the meter.
• The built-in flashlight is very useful for illuminating dark work areas, especially when working in electrical panels or under sinks.
• Remember to turn the rotary switch to the OFF position when not in use to conserve battery life.

10. Package Contents

• HYTAIS TS-18D Clamp Meter x 1
• Test Leads x 1 set
• Temperature Probe x 1
• Instruction Manual x 1

11. Warranty and Support

For any technical support or warranty inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.