Kethvoz KE-570S-APP Digital Clamp Multimeter User Manual

1. Introduction

Thank you for choosing the Kethvoz KE-570S-APP Digital Clamp Multimeter. This device is a professional, portable measuring instrument designed for electrical testing. It features a 6000-count display, True RMS measurement, and various functions including AC/DC voltage, AC/DC current, resistance, capacitance, frequency, and temperature. Its non-contact voltage (NCV) detection and Bluetooth connectivity enhance its utility and safety. Please read this manual thoroughly before use to ensure safe and correct operation.

2. Safety Information

Warning: To avoid electric shock or personal injury, please read and understand all safety information before using this meter.

• Always adhere to local and national safety codes.
• Do not use the meter if it appears damaged or if the test leads are damaged.
• Ensure the function switch is in the correct position for the measurement being performed.
• Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground. This meter is rated for CAT.II 600V and CAT.III 1000V.
• Use extreme caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. Such voltages pose a shock hazard.
• Keep fingers behind the finger guards on the test probes during use.
• Replace the battery immediately when the low battery indicator appears to ensure accurate readings.
• Do not operate the meter in explosive gas, vapor, or dust environments.
• Disconnect the test leads from the circuit before changing functions.

3. Product Overview

The Kethvoz KE-570S-APP is a versatile digital clamp multimeter offering a range of measurement capabilities and smart features.

Figure 1: Kethvoz KE-570S-APP Digital Clamp Multimeter highlighting key features such as True RMS, Continuity Buzzer, 6000 Counts, Resistance, NCV Detect, Capacitance, AC/DC Voltage, Temperature, AC/DC Current, Frequency, and Bluetooth Connection.

Key Features:

• True RMS: Provides accurate readings for non-sinusoidal waveforms.
• 6000 Counts Display: High-resolution display for precise measurements.
• Automatic Ranging: Simplifies operation by automatically selecting the correct measurement range.
• Non-Contact Voltage (NCV) Detection: Detects AC voltage without physical contact for enhanced safety.
• Bluetooth Connectivity: Allows data logging and remote monitoring via a smartphone application.
• Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Temperature, Continuity, Diode Test.

4. Setup

4.1 Battery Installation

The meter is powered by batteries. To install or replace batteries:

1. Ensure the meter is turned OFF and disconnect all test leads.
2. Locate the battery compartment cover on the back of the meter.
3. Use a screwdriver to loosen the screw(s) on the battery cover.
4. Remove the cover and insert new batteries, observing correct polarity (+ and -).
5. Replace the battery cover and tighten the screw(s).

4.2 Connecting Test Leads

For most measurements (voltage, resistance, capacitance, frequency, temperature, continuity), test leads are required.

• Insert the black test lead into the "COM" (common) input jack.
• Insert the red test lead into the "VΩHz+" input jack for voltage, resistance, frequency, capacitance, and temperature measurements.

Figure 2: Proper connection of test leads for measurements like continuity. The image also shows the dimensions of the clamp meter.

5. Operating Instructions

5.1 Power On/Off

Rotate the function dial from the "OFF" position to any desired measurement function to turn the meter ON. Rotate the dial back to "OFF" to power down the meter.

5.2 AC Current Measurement (Clamp Function)

To measure AC current, use the clamp jaws. This method allows measurement without breaking the circuit.

1. Rotate the function dial to the AC current (A~) range.
2. Press the clamp trigger to open the jaws.
3. Enclose only one conductor (live or neutral) within the clamp jaws. Do not clamp around multiple conductors or an entire power cord, as this will result in an inaccurate zero reading.
4. Release the trigger to close the jaws securely around the conductor.
5. Read the AC current value on the display.

Figure 3: Demonstrates how to clamp onto a single conductor to measure AC current. The image emphasizes "Just clamp on, measure AC current easily" and indicates a 45mm jaw opening.

Figure 4: Illustrates the correct method of clamping around a single live wire (L) for AC current measurement, and the incorrect method of clamping around both live and neutral wires (L and N) which would result in a zero reading.

5.3 DC Voltage Measurement

To measure DC voltage:

1. Connect the test leads as described in Section 4.2.
2. Rotate the function dial to the DC voltage (V=) range.
3. Connect the red test lead to the positive (+) side of the circuit and the black test lead to the negative (-) side.
4. Read the DC voltage value on the display. The meter supports measurements from 600mV to 1000V DC.

Figure 5: Shows the multimeter measuring DC voltage from a battery using test leads. The image also lists key measurement ranges: 1000A DC Current, 750V AC Voltage, 60MΩ Resistance, 60mF Capacitance, 9.999MHz Frequency.

5.4 Non-Contact Voltage (NCV) Detection

The NCV function allows for quick detection of AC voltage without direct contact, useful for identifying live wires.

1. Rotate the function dial to the NCV position.
2. Bring the top end of the meter near the conductor or outlet you wish to test.
3. If AC voltage is detected, the meter will emit an audible beep and/or illuminate an indicator light.

Figure 6: Demonstrates the Non-Contact AC Voltage Detect feature, showing the meter detecting voltage near a wall outlet without physical contact.

5.5 Other Measurement Functions

• Resistance (Ω): Connect test leads across the component.
• Capacitance (F): Connect test leads across the capacitor (ensure capacitor is discharged).
• Frequency (Hz): Connect test leads to the signal source.
• Temperature (°C/°F): Use the included temperature probe and connect it to the appropriate jacks.
• Continuity: Connect test leads across the circuit. An audible beep indicates continuity.
• Diode Test: Connect test leads across the diode.

5.6 Bluetooth Connection and App Usage

The KE-570S-APP model features Bluetooth connectivity for data logging and remote viewing via a dedicated smartphone application.

1. Download the Kethvoz app from your smartphone's app store.
2. Ensure Bluetooth is enabled on your smartphone.
3. Turn on the multimeter. The Bluetooth icon on the meter's display should blink, indicating it's ready to pair.
4. Open the Kethvoz app and follow the on-screen instructions to connect to your KE-570S-APP meter.
5. Once connected, you can view real-time measurements, log data, and analyze trends on your smartphone.

Figure 7: Illustrates the Bluetooth connection feature, showing the multimeter wirelessly transmitting data to a smartphone application for real-time display and logging.

6. Maintenance

6.1 Cleaning

Wipe the meter with a damp cloth and mild detergent. Do not use abrasives or solvents. Keep the meter dry.

6.2 Battery Replacement

Refer to Section 4.1 for battery replacement instructions. Replace batteries promptly when the low battery indicator appears to maintain measurement accuracy.

6.3 Fuse Replacement

This meter is typically self-resetting for overcurrent protection in most ranges. If a fuse needs replacement (e.g., for specific current ranges if applicable), refer to the detailed diagram inside the battery compartment or consult Kethvoz customer support.

7. Troubleshooting

8. Specifications

9. Warranty and Support

Specific warranty information for the Kethvoz KE-570S-APP Digital Clamp Multimeter is not provided in the product details. For warranty claims, technical support, or service inquiries, please contact Kethvoz customer service directly through their official website or the retailer where the product was purchased.