Overview: The WSD12-4VW is a wireless datalogger designed to acquire frequency and temperature data from vibrating wires. It features four input channels and offers flexibility in installation and excellent radio range and autonomy.

Applications: This device is suitable for monitoring inclinations, surface cracks, structural deformations, interstitial pressures, and aquifer levels.

Main Features: The datalogger can be installed in any position and is housed in a rugged, shock-resistant case with an IP65 rating. It offers a resolution of 0.1µs/0.1Hz and an excitation range of 500 to 4,000Hz. It supports single wire temperature measurement and can operate autonomously for up to four years.

Technical Specifications:

• Power Supply: 8.5Ah - 3.6V type “C” lithium internal battery.
• Battery Life: Up to 4 years with samples every 60 minutes.
• Sampling Interval: Selectable from one minute to 24 hours.
• Datalogger Capacity: 64,000 samples per channel.
• Operating Temperature: -30°C to +60°C.
• Radio Frequency: ISM 868MHz with up to 6Km coverage.
• Dimensions and Weight: 90x160x50mm, 450g.
• Connections: Wireless, USB.

Frequency and Temperature Measurement:

• Frequency Transducer: Vibrating wire with an excitation range of 500 to 4,000Hz.
• Temperature Transducer: NTC3KΩ with a measurement range of -20°C to +70°C.

Configurations: The datalogger can be configured using jumpers for different combinations of frequency and temperature measurements, including 4VW, 3VW-1NTC, and 2VW-2NTC configurations.

Data Storage and Recovery: The device can store up to 64,000 samples per channel and supports data recovery even during wireless link failures. Data can be downloaded via USB.

Compatibility and Expansion: The datalogger is compatible with MWDG and MWLI product line gateways. Radio coverage can be extended using WR12 repeaters.

Note: Features are subject to change without notice.