Intelligent Vibrating Wire Sensor Interface
Get the most advanced DIN Rail Mounted Vibrating Wire technology from Keynes Controls.
The intelligent VibWire-301 has an interface that features SDI12 and RS485 communications, independent 4-20 mA loop and 0-2V DC Output - frequency temperature. MODBUS over RS485. Thye devices comes with free access to the QLOG Windows application software.
A Vibrating Wire Sensor Calibration factor Google sheet is available for use with this product.
The Google test sheet gives the user the same results as that of an instrument but without any requirement to setup any hardware. Test out the senor configuration then cut and paste the settings into the instruments.
The VibWire-301 Product Specifications and Technical Data Sheet is available below and provides all of the information you will need. However, please feel free to contact us directly for more information on the Vibrating Wire Interface.
Product Specification:
- DIN rail mounted Vibrating Wire Interface for fast installation
- SDI12 Communications
- RS485 Communications
- MODBUS 16 & 32 bit registers
- Independent 4-20 mA Loop Frequency & Temperature
- Independent 0 - 2 V DC Output - Frequency Temperature
- Free Applications Software
- Optional USB Interface
- 16 x 4 Wire and 32 x 2 Wire optional sensor expansion.
- Terminal Port Menu System
Use the button below to directly access the Keynes Controls Vibrating Wire Sensor Calibration Factor test sheet.
The sheet can be configured to supply sensor results in Hz, Digits and SI Units. The sheet supports full thermistor calibration factors including Steinhart Hart factors.
The temperature correction factors are also available.
se the button below to directly access the Keynes Controls Vibrating Wire Sensor Calibration Factor test sheet.
The sheet can be configured to supply sensor results in Hz, Digits and SI Units. The sheet supports full thermistor calibration factors including Steinhart Hart factors.
The temperature correction factors are also available.actors are also available.
Vibrating Wire Sensor Types
The VibWire-301 supports all the different vibrating wire sensor types
- Strain gauge
- Pressure sensor
- Crack meter
- Soil Pressure Cell
- Load Cell
- Displacement sensor
QLOG Software Support
The VibWire-301 single channel vibrating wire sensor interfaces are fully supported in the free issue QLOG Windows operating system software supplied with this product.
The Q-LOG software enables the VibWire-301 to be configured in a simple Windows environment, The software enables a user to configure a sensor, make test measurements, display real-time measurements and store results into a CSV text format results file.
SELECT IMAGE TO ENLARGE
The QLOG software enables real-time results to be displayed and examined.
The charts can show 2 x traces with a common time reference which is ideal for examining signals for physical events
The panel meter display shows the latest sensor readings.
Instrument Layout
- Vibrating Wire Sensor - Temperature Sensor
- Vibrating Wire Sensor - Frequency Sensor Component
- SDI12 Port
- RS-485 Port
- Power Connection Port
- 0 - 2 V DC - Temperature Signal Component Output
- 0 - 2 V DC - Frequency Signal Component Output
- 4-20 mA - Temperature Signal Component Loop Output
- 4-20 mA - Frequency Signal Component Loop Output
The image above shows the communications and sensor input ports built into the instrument
Description of the component parts of the instrument
MUX-16/32 Expansion for the VibWire-301
The VibWire-301 can be expanded to operate using the MUX-16/32 expansion unit and offers the lowest cost solution for multiple channel vibrating wire sensor monitoring applications. The MUX-16/32 expansion unit offers 15 x 4 wire and 32 x 2 wire mode of operation.
When using the MUX-16/32 expansion unit with the VibWire-301 to increase the number of vibrating wire sensor channels from 1 to 16 then the output signals originating from the sensors are passed in turn to the instrument for measurement. As each sensor is scanned the channel indicator shown below increments automatically,
The QLOG software can be used to configure the instrument, make measurements, display real-time results and store results in a CSV text spread sheet format file.
Analogue Output Ports
4-20 mA Current Loop Operations
The VibWire-301 supports two individually isolated 4-20 mA loop outputs that can be configured to represent the Frequency and temperature signal components of the sensor.
A precision 100 Ohm sense resistor is used to convert the loop signal to a voltage that can be measured by an analogue data acquisition system.
The sensor output signal can be configured to represent Hz, Digits or SI units.
4-20 mA Current Loop Operations
The VibWire-301 has two analogue output ports that scale the frequency signal and temperature into a analogue output signal User scale-able in the range of 0 - 2 V DC. These outputs can be used by analogue data acquisition system.
The output range can be configured for Hz, DIGITS and Engineering Units.
VW Sensor Calibration Factor Testing
Keynes Controls offers all our vibrating wire instrumentation clients access to the :
Keynes Controls - VW Sensor Cal Factor Test
This sheet enables the user to try out a VW sensor configuration as it would be used by one of our sensor interfaces. Setup the VW interface and test specified sensor operations. Paste settings directly into the Windows QLOG software supplied with these instruments.
See video opposite to show the Google sheet Calibration Factor Configuration testing for a VW Peizometer.
MODBUS Communications
MODBUS Operations
The VibWire 301 provides support for MODBUS network operations. The VibWire 301 operates exclusively as slave units and can communicate to suitable controllers and SCADA systems that support the MODBUS Protocol. The VibWire sensors boast support for both 16 and 32-bit registers, ensuring reliable and accurate communication of data.
For seamless integration with PC-based systems, the VibWire 301 offers an optional USB-485-Pro media converter. This device not only facilitates data transmission for MODBUS and standard RS485 network communications, but also supplies power to the chemical sensor and ensures correct timing protocols.
Additional Information: VW Stress meter, Principal Stress, Strain, Mohr Circle, Principle Stress Angle