Manual de instrucións do termómetro rexistrador SD de catro canles Extech SDL200

1. Introdución

The Extech SDL200 is a versatile four-channel thermometer and data logger designed for precise temperature measurement and recording. It supports six types of thermocouples (J, K, E, T, R, S) and two channels for RTD (Pt100Ohm) probes, allowing for a wide range of applications. This device can display individual channel readings (T1, T2, T3, T4) or differential readings (T1-T2). It features an offset adjustment for relative measurements and can store up to 99 readings manually, with an extensive capacity of 20 million readings via a 2GB SD memory card. All recorded data is time-stamped and saved in an Excel-compatible format for easy transfer and analysis on a PC. The SDL200 also includes user-programmable sampling rates, Min/Max recording, Data Hold, Auto Power Off, and a built-in PC interface.

2. Información de seguridade

Please read and understand all safety instructions before operating the Extech SDL200. Failure to follow these instructions may result in injury or damage to the device.

• Non poñas en funcionamento o dispositivo se parece estar danado ou se o illamento está comprometido.
• Ensure proper probe connection before taking measurements.
• Evite expoñer o dispositivo a temperaturas extremas, humidade ou luz solar directa.
• Use only specified battery types and ensure correct polarity during installation.
• Keep the device clean and dry. Refer to the maintenance section for cleaning instructions.
• Non intente reparar nin modificar o dispositivo. Encargue calquera mantemento a persoal cualificado.

3. Contido do paquete

Comprobe que todos os elementos estean presentes ao desembalar:

• Extech SDL200 Four-Channel Thermometer SD Logger unit
• 6 pilas AA
• Four general purpose Type K bead wire temperature probes
• SD memory card (2GB)
• Estuche duro de transporte

Figura 3.1: Extech SDL200 unit with four Type K thermocouple probes inserted into the top ports. The display shows temperature readings for T1, T2, T3, and T4.

Figura 3.2: The retail packaging box for the Extech SDL200, displaying the brand logo, model name, and UPC code (0793950432105).

4. Produto rematadoview

The SDL200 features a clear digital display and intuitive button layout for easy operation. The top of the device includes four input ports for thermocouple probes. The side of the device houses connectivity ports for power and PC interface, along with RTD probe inputs.

Figura 4.1: Lado view of the Extech SDL200, illustrating the DC 9V power input, RS232 serial port for PC connection, and two RTD (PT100Ohm) probe input ports labeled PT1 and PT2, protected by a rubber flap.

Figura 4.2: A set of four yellow Type K bead wire temperature probes with standard mini-connectors, alongside a larger clamp-style temperature probe, demonstrating the variety of probes that can be used with the device.

5. Configuración

5.1. Instalación da batería

1. Abra a tapa do compartimento da batería na parte traseira do dispositivo.
2. Insert six (6) AA batteries, ensuring correct polarity as indicated inside the compartment.
3. Pecha a tapa do compartimento da batería de forma segura.

5.2. Conexión da sonda

• For thermocouple probes (Type J, K, E, T, R, S), connect them to the four input jacks located at the top of the meter. Ensure the correct thermocouple type is selected in the device settings if applicable.
• For RTD (Pt100Ohm) probes, connect them to the PT1 and PT2 ports on the side of the device (refer to Figure 4.1).

5.3. Inserción da tarxeta SD

1. Locate the SD card slot, typically on the side or bottom of the device.
2. Insert the provided 2GB SD memory card into the slot until it clicks into place.
3. Para retirala, empurre a tarxeta con coidado cara a dentro ata que salte.

6. Instrucións de funcionamento

6.1. Acendido/apagado

Preme o POTENCIA botón para acender ou apagar o dispositivo.

6.2. Medición básica da temperatura

1. Connect the desired temperature probes.
2. Power on the device. The display will show real-time temperature readings for the connected channels (T1, T2, T3, T4).
3. Preme o T1-T2 button to switch between individual channel display and differential temperature (T1-T2) display.

Figura 6.1: A technician utilizing the Extech SDL200 to monitor multiple temperature points on an HVAC system, demonstrating its application in industrial and scientific settings.

6.3. Rexistro de datos

The SDL200 can record temperature data to the SD card with a real date and time stamp.

1. Set Samptaxa de ling: Usa o SET button to access settings and adjust the samptaxa de ling (de 1 a 3600 segundos).
2. Comezar a rexistrar: Preme o LOG button to begin recording data to the SD card. A logging indicator will appear on the display.
3. Deixar de rexistrar: Preme o LOG botón de novo para deter a gravación de datos.
4. Transferencia de datos: Remove the SD card and insert it into a computer to access the data, which is saved in Excel (.xls) format.

6.4. Min/Max and Data Hold

• Min/Máx: Preme o MAX/MIN button to display the maximum or minimum recorded temperature since the function was activated. Press again to cycle through Max, Min, and current readings.
• Retención de datos: Preme o ATENCIÓN button to freeze the current readings on the display. Press again to release.

6.5. Offset Adjustment

Usa o COMPENSACIÓN button to perform a zero function for relative measurements. Consult the full manual for detailed calibration procedures.

6.6. Apagado automático

The device features an Auto Power Off function to conserve battery life. This can typically be disabled or adjusted in the settings menu if continuous operation is required.

6.7. PC Interface

The built-in RS232 PC interface allows for real-time data streaming and advanced control using compatible software (sold separately or available for download from Extech's website). Connect the device to your PC using an appropriate RS232 cable.

7. Mantemento

7.1. Limpeza

Limpe o dispositivo cun pano suave eamp cloth. Do not use abrasive cleaners or solvents. Ensure the device is dry before storage or further use.

7.2. Substitución da batería

Substitúa as baterías cando apareza o indicador de batería baixa na pantalla. Consulte a Sección 5.1 para obter instrucións de instalación da batería.

7.3. Almacenamento

When not in use for extended periods, remove the batteries and store the device in its hard carrying case in a cool, dry place.

8 Solución de problemas

• O dispositivo non se acende: Comprobe a instalación das baterías e asegúrese de que non estean esgotadas. Substitúaas se é necesario.
• Lecturas de temperatura incorrectas: Verify probe connections are secure and that the correct probe type is selected (if applicable). Ensure probes are not damaged.
• Data logging not working: Check if the SD card is properly inserted and has sufficient free space. Ensure the logging function is activated.
• Problemas de conexión co PC: Verify the RS232 cable connection and ensure the correct drivers and software are installed on your PC.

9. Especificacións

10. Garantía e soporte

Extech products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the official Extech websitio web ou póñase en contacto co seu departamento de atención ao cliente. Garde o recibo da compra como proba de compra para reclamacións de garantía.

Para obter recursos adicionais, visite o Tenda Extech en Amazon.