Medidor de corriente CA/CC TRMS industrial Metrel MD9231amp Manual de usuario del medidor

1. Introducción

Thank you for choosing the Metrel MD9231 Industrial TRMS AC/DC Current Clamp Meter. This instrument is designed for professional use, offering a wide range of measurement capabilities for electrical parameters. It is a true RMS (TRMS) AC and DC current clamp meter capable of measuring currents up to 1000 A, as well as capacitance and frequency. Equipped with a built-in VFD feature, it accurately measures true values in varying frequency environments.

The MD9231 includes features such as peak value, data hold, MAX/MIN hold functions, auto power off, auto-ranging, and a relative zero function. Its robust industrial-grade casing and integrated flashlight make it suitable for demanding work conditions, including dimly lit areas.

Figura 1: Medidor de corriente CA/CC TRMS industrial Metrel MD9231amp Meter. This image shows the clamp meter from an angled perspective, highlighting its blue and black casing, the clamp jaw, and the display screen.

2. Información de seguridad

Lea y comprenda toda la información de seguridad y las instrucciones de funcionamiento antes de utilizar este instrumento. El incumplimiento de estas instrucciones podría provocar una descarga eléctrica, un incendio o lesiones graves.

• Respete siempre los códigos de seguridad locales y nacionales.
• No utilice el medidor si parece dañado o si el aislamiento está comprometido.
• Ensure the test leads are in good condition and free from cracks or damage.
• Do not exceed the maximum input limits for any function. The MD9231 is rated for CAT IV 600 V / CAT III 1000 V.
• Tenga mucho cuidado al trabajar con circuitos activos.
• Mantenga los dedos detrás de los protectores de dedos en los cables de prueba durante las mediciones.
• Reemplace las baterías inmediatamente cuando aparezca el indicador de batería baja para garantizar lecturas precisas.
• Evite utilizar el medidor en ambientes húmedos o en presencia de gases o polvo explosivos.

3. Producto terminadoview y componentes

Familiarize yourself with the various parts of your MD9231 clamp metro:

Figura 2: Frente view of the Metrel MD9231 Clamp Meter, showing the display, rotary switch, function buttons, and input terminals.

Componentes clave:

1. Clamp Mandíbula: Used for non-contact current measurement. Features a 31 mm jaw opening.
2. Interruptor giratorio de función: Selects the desired measurement function (e.g., V, A, Hz, Ohm, Capacitance).
3. Pantalla LCD: Digital display with backlight, showing 3-5/6 digits and up to 6000 counts.
4. Botones de función: Includes buttons for PEAK/REC, SELECT, Hz, and other special functions like Data Hold, MIN/MAX/AVG, and Relative Zero.
5. Terminales de entrada: Para conectar cables de prueba para vol.tage, mediciones de resistencia, capacitancia y diodos.
6. Flash: Luz integrada para iluminar áreas de trabajo oscuras.
7. Vol sin contactotagDetector e (NCV): For automatic detection of electromagnetic fields.

4. Configuración

4.1. Instalación de la batería

The Metrel MD9231 is powered by two 1.5 V AAA batteries. To install or replace batteries:

1. Asegúrese de que el medidor esté apagado y desconecte todos los cables de prueba de las terminales de entrada.
2. Localice la tapa del compartimiento de la batería en la parte posterior del medidor.
3. Utilice un destornillador para aflojar los tornillos que sujetan la cubierta.
4. Remove the cover and insert two new 1.5 V AAA batteries, observing the correct polarity (+/-) as indicated inside the compartment.
5. Vuelva a colocar la tapa del compartimiento de la batería y apriete bien los tornillos.

Always use fresh batteries of the specified type. Dispose of old batteries responsibly according to local regulations.

5. Instrucciones de funcionamiento

5.1. Encendido y apagado

To turn the meter ON, rotate the function switch from the 'OFF' position to any desired measurement function. To turn the meter OFF, rotate the function switch back to the 'OFF' position. The meter features an auto power-off function to conserve battery life, which will activate after a period of inactivity.

5.2. Selección de funciones

Use the rotary switch to select the desired measurement function. The available functions include:

• Vol. CA / CCtagmi(V): Para medir vol.tage hasta 1000 V.
• AC/DC Current (A): For measuring current up to 1000 A using the clamp mandíbula.
• Resistencia (Ω): For measuring resistance.
• continuidad ()))): For checking circuit continuity with an audible indicator.
• Prueba de diodo (▶|): Para probar diodos.
• Capacitance (µF): Para medir capacitancia.
• Frecuencia (Hz): For measuring frequency.
• VFD (Variable Frequency Drive): For accurate measurements in VFD environments.
• NCV (Vol sin contactotagmi): For detecting live conductors without physical contact.

5.3. Toma de medidas

For Current Measurement (AC/DC A):

1. Rotate the function switch to the AC A or DC A position.
2. Abre la clamp mandíbula presionando la palanca.
3. Rodee solo un conductor con el clamp mandíbula. Asegúrese de que la mandíbula esté completamente cerrada.
4. Lea el valor actual en la pantalla LCD.

para vol.tage, Resistance, Capacitance, Diode, and Frequency Measurements:

1. Rotate the function switch to the desired V, Ω, µF, or Hz position.
2. Insert the black test lead into the 'COM' terminal and the red test lead into the 'VΩHz' terminal.
3. Conecte las sondas de prueba al circuito o componente bajo prueba.
4. Lea la medida en la pantalla LCD.

5.4. Funciones especiales

• Botón SELECCIONAR: Toggles between AC/DC modes or different sub-functions within a rotary switch position (e.g., VFD, NCV).
• PEAK/REC Button: Activates Peak Hold or Record mode (MIN/MAX/AVG).
• Retención de datos: Congela la lectura actual en la pantalla.
• MIN/MAX/AVG: Records the minimum, maximum, and average values over a measurement period.
• Relative Zero: Subtracts the current reading from all subsequent readings, useful for nulling out test lead resistance or comparing measurements.
• Iluminar desde el fondo: Illuminates the LCD display for better visibility in low-light conditions.
• Flash: Proporciona iluminación para el área de trabajo.

6. Mantenimiento

6.1. Limpieza

Para limpiar el medidor, limpie la caja con un paño.amp Paño y detergente suave. No utilice abrasivos ni disolventes. Asegúrese de que el medidor esté completamente seco antes de usarlo.

6.2. Reemplazo de la batería

Refer to Section 4.1 for detailed instructions on battery replacement. Always replace batteries when the low battery indicator appears on the display to maintain measurement accuracy.

6.3. Calibración

For optimal performance and accuracy, it is recommended to have the Metrel MD9231 calibrated periodically by qualified personnel. Refer to Metrel's official website or contact customer support for calibration services and schedules.

7. Solución de problemas

Si tiene problemas con su MD9231, consulte los siguientes problemas y soluciones comunes:

• El medidor no se enciende:
  Check battery installation and ensure batteries are not depleted. Replace batteries if necessary. Ensure the rotary switch is not in the 'OFF' position.
• No se muestra ninguna lectura o se muestra 'OL' (sobrecarga):
  Ensure test leads are properly connected and making good contact with the circuit. Verify the selected function and range are appropriate for the measurement. If measuring current, ensure only one conductor is within the clamp mandíbula.
• Lecturas inexactas:
  Check battery level. Ensure test leads are not damaged. Verify the correct function is selected. Environmental factors (e.g., strong electromagnetic fields) can affect readings.
• La pantalla está oscura o parpadea:
  Reemplace las baterías.

If the problem persists after attempting these solutions, contact Metrel customer support for further assistance.

8. Especificaciones

The following table outlines the technical specifications of the Metrel MD9231 Industrial TRMS AC/DC Current Clamp Metro:

Figura 3: Detailed technical specifications for the Metrel MD9231, including measurement ranges and accuracy.

Especificaciones generales:

• Marca: Metrol
• Modelo: MD9231
• Fuente de energía: Battery Powered (2 x 1.5 V AAA batteries)
• Jaw Opening & Conductor Diameter: 31 mm máximo
• Dimensiones (L x An x Al): 258 x 94 x 44 mm
• Peso: 292 gramos
• sobrevoltajetage Categoría: CAT IV 600 V / CAT III 1000 V
• Mostrar: 3-5/6 digit, 6000 counts, with backlight

Especificaciones de medición:

9. Garantía y soporte

9.1. Información de garantía

Metrel products are manufactured under strict quality control standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific warranty period and terms may vary by region. Please refer to the warranty card included with your product or visit the official Metrel websitio para obtener información detallada sobre la garantía.

The warranty does not cover damage caused by misuse, unauthorized modification, accident, neglect, or improper operation.

9.2. Atención al cliente

For technical assistance, service, or repair, please contact Metrel customer support. When contacting support, please have your product model number (MD9231) and purchase information ready.

Metrel D.D.
Fabricante de equipos de medición y regulación
Ljubljanska 77, SI-1354 Horjul, Eslovenia
Teléfono: +386 (0)1 75 58 200
Fax: +386 (0)1 75 49 226
Correo electrónico: metrel@metrel.si
Websitio: www.metrel.si