Earth is connected common to all units - any earth point can be used.
SDI-12 serial data transmitted
across RS485 - line
across RS485 -
Earth
12V DC
12V DC
RS485 - pin on each instrument are daisy chained together for SDI-12 operations
See System in Operation
8 x Full 4 Wire Vibrating Wire Sensor Inputs
hermistor / 0- 2.5V dc / 4-20 mA loop Analogue Inputs
SDI-12 Serial network interface
Supports upto 80 channels on SDI-12 networks
Connects to any SDI-12 data logger
Extended SDI-12 Network Support
Integrated Power Supply Monitoring
Gas Discharge Lightening Protection all inputs
Solid state speaker
Advanced Power Management < 3mA Standby Mode
Full Digital Data Conversion - No sensor setup
100 Hz - 10 K Hz sensor range
Digital Measurement Process - No sensor configuration
On-board Sensor Frequency Display
The VibWire-108-SDI12 is the Keynes Controls vibrating wire interface that connects to any SDI-12 compatible data logger unit. This version of the instrument is ideal for locally distributed applications such as when multiple instruments are required to operate together within the same enclosure. The instrument can also be used to combine signals from tilt sensors, 4-20 mA current loop driven devices and temperature sensors.
All VibWire-108 models contain gas discharge protection on all sensor inputs and the network interfaces so nothing else is required apart from connecting the sensors and power supply.
All instruments supplied with protective covers
SDI-12 Network Connections
