1. Introdución
The KPS-PA420 is a compact digital clamp medidor diseñado para medir vol. AC/DCtage, AC current, resistance, continuity, and diode testing. It features a 2000-count display, a 28mm jaw opening, and a data hold function. This manual provides detailed instructions for safe and effective use of the device.

Image: KPS-PA420 Mini Digital Clamp Meter highlighting its main features: 400V AC/DC Voltage, 400A AC Current, 2KΩ Resistance, Continuity, Diode, Data Hold, and 28mm Jaw Opening.
2. Información de seguridade
Always adhere to safety precautions when using electrical testing equipment. This device is rated CAT. III 600V. Failure to follow safety guidelines can result in electric shock, fire, or damage to the meter.
- Non excedas os límites máximos de entrada para ningunha función.
- Asegúrese de que os cables de proba estean conectados correctamente e en bo estado antes do uso.
- Non empregue o medidor se parece estar danado ou se a tapa da batería non está ben pechada.
- Always turn off the circuit power before making resistance, continuity, or diode measurements.
- Teña coidado ao traballar con voltagpor riba de 30 V CA RMS, 42 V pico ou 60 V CC. Estes voltagsupoñen un perigo de descarga.
- Keep hands behind the probe barriers when testing.
3. Contido do paquete
Verifica que todos os elementos estean presentes no paquete:
- KPS-PA420 Digital Clamp Contador
- Maletín de transporte
- Cables de proba (vermello e negro)
- 3 x AAA 1.5V Batteries (pre-installed or separate)
- Manual de usuario

Image: The KPS-PA420 Mini Digital Clamp Meter shown alongside its protective carrying case and a set of red and black test leads.
4. Características do produto
- Cl dixitalamp Meter with 2000 counts display.
- Jaw opening of 28 mm (1.1").
- Medidas AC/DC Voltage ata 600V.
- Measures AC Current up to 400A.
- Measures Resistance up to 2KΩ.
- Audible Continuity Warning.
- Diode Test function.
- Data Hold function to freeze readings.
- Indicador de batería baixa.
- Safety Rating: CAT. III 600V.
5. Diagrama e controis do produto
Familiarize yourself with the parts and controls of your KPS-PA420 Digital Clamp Medidor.

Image: Detailed diagram of the KPS-PA420 Mini Digital Clamp Meter, showing its components and their functions, including the current clamp, safety barrier, rotary switch, display, input jack, COM jack, hold button, and clamp disparador.
Mostrar símbolos

Image: A table illustrating the various symbols that appear on the meter's digital display, along with their corresponding descriptions such as Low Battery, Volts, Amps, Kilohms, Continuity, Diode, Display Hold, and Polarity Indicator.
6. Configuración
6.1. Instalación da batería
The KPS-PA420 uses three 1.5V AAA batteries. If the low battery indicator appears on the display, replace the batteries immediately to ensure accurate readings.
- Xire o interruptor rotativo na posición OFF.
- Localice o compartimento das baterías na parte traseira do medidor.
- Use un desaparafusador para abrir a tapa do compartimento da batería.
- Insert three new AAA batteries, observing the correct polarity (+ and -).
- Coloque a tapa do compartimento da batería e fíxaa co parafuso.
6.2. Conexión dos cables de proba
Para o voltage, resistance, continuity, and diode measurements, connect the test leads:
- Insira o cable de proba negro na toma de entrada COM (común).
- Insert the red test lead into the INPUT jack.
7. Instrucións de funcionamento
7.1. Measuring AC Current
Para medir a corrente alterna, use o clamp mandíbula:
- Xire o interruptor rotativo á posición 400A~ or 20A~ rango.
- Prema o clamp trigger to open the clamp mandíbula.
- Encerra só un condutor do circuíto co clamp mandíbula. Asegúrate de que a mandíbula estea completamente pechada.
- Lea o valor da corrente CA na pantalla.

Image: A KPS-PA420 Mini Digital Clamp Meter being used to measure AC current by clamping its jaw around a single electrical cable.
7.2. Medición de tensión CA/CCtage
Para medir AC o DC voltage:
- Conecte os cables de proba como se describe na Sección 6.2.
- Xire o interruptor rotativo á posición V~ (Volumen da CA)tage) ou V= (DC Voltage) position. Select the appropriate range (e.g., 600V).
- Touch the test probes to the desired test points in the circuit.
- Le o voltago valor da pantalla.

Image: A KPS-PA420 Mini Digital Clamp Meter with its test leads connected to an electrical panel, demonstrating voltage medición.
7.3. Medición de resistencia
Para medir a resistencia:
- Asegúrate de que o circuíto estea desenergizado.
- Conecte os cables de proba como se describe na Sección 6.2.
- Xire o interruptor rotativo á posición Ω (Resistance) position. Select the appropriate range (e.g., 2KΩ).
- Touch the test probes across the component or circuit where resistance is to be measured.
- Lea o valor de resistencia na pantalla.
7.4. Proba de continuidade
Para realizar unha proba de continuidade:
- Asegúrate de que o circuíto estea desenergizado.
- Conecte os cables de proba como se describe na Sección 6.2.
- Xire o interruptor rotativo á posición Ω))) (Continuity) position.
- Touch the test probes across the component or circuit. If continuity exists (resistance below a certain threshold), the meter will emit an audible beep.
7.5. Proba de diodos
Para realizar unha proba de díodos:
- Asegúrate de que o circuíto estea desenergizado.
- Conecte os cables de proba como se describe na Sección 6.2.
- Xire o interruptor rotativo á posición Ω→| (Diode) position.
- Touch the red test probe to the anode and the black test probe to the cathode of the diode. The display will show the forward voltagcaída de e. Inverta as sondas; a pantalla debería mostrar "OL" (bucle aberto) para un díodo en bo estado.
7.6. Función de retención de datos
Preme o ATENCIÓN button to freeze the current reading on the display. Press it again to release the hold and return to live measurement.
8. Mantemento
8.1. Limpeza
Limpar o contador con anunciosamp cloth and mild detergent. Do not use abrasives or solvents. Keep the contacts of the input jacks clean.
8.2. Substitución da batería
Refer to Section 6.1 for battery replacement instructions. Always replace all three batteries at the same time with new ones of the same type.
8.3. Almacenamento
If the meter is not used for an extended period, remove the batteries to prevent leakage and damage. Store the meter in its carrying case in a cool, dry place.
9 Solución de problemas
- Sen pantalla ou pantalla tenue: Comprobe a instalación das baterías ou substitúelas.
- "OL" (Sobrecarga) amosado: The measured value exceeds the selected range. Select a higher range or ensure the circuit is within the meter's capabilities.
- Lecturas inexactas: Check battery level, ensure test leads are properly connected, and verify the correct function and range are selected. Ensure the clamp jaw is fully closed around a single conductor for current measurements.
- Sen pitido de continuidade: Check if the circuit is de-energized and if the resistance is above the continuity threshold.
10. Especificacións
| Característica | Especificación |
|---|---|
| Mostrar | 2000 contas |
| Apertura da mandíbula | 28 mm (1.1") |
| AC / DC Voltage | 600 V máx |
| Corrente alterna | 400 A máx |
| Resistencia | 2KΩ Max |
| Continuidade | Zumbador audible |
| Proba de diodo | Si |
| Retención de datos | Si |
| Indicador de batería baixa | Si |
| Fonte de enerxía | 3 pilas AAA de 1.5 V |
| Valoración de seguridade | CAT. III 600V, IEC 61010 |
| Peso do elemento | 195 gramos |
11. Vídeo de demostración do produto
Video: A short demonstration of the KPS-PA420 Mini Digital Clamp Meter in various applications, showcasing its features and ease of use for measuring AC current and voltage.
12. Garantía e soporte
The KPS-PA420 Digital Clamp Meter comes with a 3-year warranty. For technical support or warranty claims, please refer to the contact information provided with your purchase or visit the official KPS websitio.