Campbell Scientific AVW200-series 2-Channel Instruction Manual

Campbell Scientific AVW200-series 2-Channel Analyzer Module manual cover
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Campbell Scientific AVW200-series 2-Channel Analyzer Module Specification

The Campbell Scientific AVW200-series 2-Channel Analyzer Module is designed to provide accurate and reliable measurements of vibrating wire sensors. This module excels in monitoring geotechnical and structural health by converting the resonant frequencies from sensors into precise data. It operates by utilizing spectral analysis methods to enhance measurement accuracy and minimize the influences of noise and temperature variations.

The AVW200 series supports two vibrating wire sensors simultaneously, making it a versatile solution for a wide range of applications from large scale infrastructures to small experimental setups. It features a robust design with an operating temperature range of -40°C to 70°C, ensuring consistent performance in both extreme and varied environmental conditions. The module communicates seamlessly with Campbell Scientific data loggers through a built-in RS-232 serial interface, facilitating efficient data transmission and integration within broader monitoring systems.

An essential feature of the AVW200-series is its advanced filtering capabilities that contribute to signal clarity, allowing for high-precision frequency measurements. Furthermore, it offers configurable excitation frequencies and can accommodate a variety of sensor types, enhancing its adaptability to different monitoring needs. The module is powered through an external 12 VDC source, optimizing power efficiency for field deployments.

With a focus on durability, accuracy, and ease of integration, the AVW200-series 2-Channel Analyzer Module stands as a reliable tool for professionals in geotechnical engineering and structural monitoring. It supports both direct and remote access configurations, enabling users to maintain and analyze data effectively for informed decision-making processes.

Campbell Scientific AVW200-series 2-Channel Analyzer Module F.A.Q.

How do I configure the AVW200-series 2-Channel Analyzer Module for use with a CR1000 datalogger?

To configure the AVW200 with a CR1000 datalogger, connect the AVW200 to the datalogger via the SDI-12 interface. Use the CRBasic Editor software to set up the AVW2xx() instruction in your program, specifying the correct SDI-12 address and measurement parameters.

What is the procedure for updating the firmware on the AVW200 module?

To update the firmware, connect the AVW200 to your PC via the USB interface. Use the Device Configuration Utility provided by Campbell Scientific to load the latest firmware file into the module. Follow the on-screen instructions to complete the update.

How can I troubleshoot communication issues between the AVW200 and the datalogger?

Check all physical connections and ensure the SDI-12 address set on the AVW200 matches the address used in the datalogger program. Verify that both devices are powered on and consult the datalogger's log for any communication error messages.

What maintenance steps are recommended for ensuring optimal performance of the AVW200?

Regularly inspect and clean connectors to prevent corrosion. Verify that firmware is up-to-date and check the module’s calibration periodically. Ensure cables are not damaged and are securely connected.

How do I perform a factory reset on the AVW200 module?

To perform a factory reset, press and hold the reset button located on the AVW200 for approximately 10 seconds until the status LEDs indicate a reset. Release the button and allow the module to restart.

Can the AVW200 module be used in environments with high electromagnetic interference?

The AVW200 is designed with shielding to minimize interference; however, in environments with high EMI, additional shielding and proper grounding of the system may be required to ensure accurate measurements.

What are the power requirements for the AVW200 module?

The AVW200 requires a 12 V DC power supply. Ensure the power source provides a stable voltage to prevent measurement inaccuracies and equipment shutdowns.

How do I connect a vibrating wire sensor to the AVW200 module?

Connect the vibrating wire sensor wires to the corresponding terminal block on the AVW200, ensuring correct polarity and secure connections. Consult the sensor’s manual for specific wiring instructions.

What diagnostic tools are available for the AVW200 module?

The AVW200 includes LED indicators for status monitoring and diagnostics. Additionally, the Device Configuration Utility can be used to view logs and perform diagnostic tests.

How can I ensure data integrity when using the AVW200 over long cable runs?

Use low-capacitance, shielded cables to reduce signal loss and interference. Consider using signal repeaters or boosters for cable runs exceeding the recommended length.