Hệ thống thu thập và lưu trữ dữ liệu Datalogger cho cảm biến dây rung (GeoNet Digital Vibrating Wire Interfaces) Geokon 8960
Overview
The Model 8960 Series Digital Vibrating Wire Interfaces expand the capacity of GeoNet Dataloggers, Mesh, Cellular, and Wi-Fi® Multi-Channel and Addressable Loggers by allowing users to add additional sensors to the system. The Model 8960 Series also enables the reading of vibrating wire sensors from Modbus® RTU clients using signal conditioning and digital addressing.
The 4- and 8-channel Digital Vibrating Wire Interfaces are also compatible with Model 4900 Vibrating Wire Load Cells. Multiple load cells and VW sensors can be connected to a single interface, provided that the total number of VW gauges does not exceed the channel capacity of the interface.
The Model 8020-38 Addressable Bus Converter is required to connect addressable sensor strings to personal computers, readouts, dataloggers, and programmable logic controllers. The converter acts as a bridge using the TTL or USB protocols between readers and GEOKON RS-485-enabled sensor strings.
Specification
Power Supply 12 VDC
Current 1.2 mA (idle)
Maximum Current 35 mA (180Ω VW Coil), 57 mA (50Ω VW Coil)
Interface RS-485, Half-duplex (two-wire differential)
Protocol Modbus RTU
Operating Temperature −40°C to +80°C
L × W × H (Enclosure) 80 × 125 × 57 mm (single-channel)
180 × 180 × 101 mm (4-channel)
160 × 260 × 91 mm (8-channel)
L × Ø (Housing) 100 × 25 mm (single-channel, Model 8960-01C-CAB)
Tài liệu
