Keynes Controls VibWire-201-Pro User Manual

Vibrating wire sensor analyser & data recording unit

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Advanced FFT Sensor Analyser

Precision Temperature Readings

User Pre-set VW Sensor Configurations

Sdi-12 & RS-485 Communication Ports

Daylight readable LCD display

Manufactured by Keynes Controls Ltd

VibWire-201-Pro User Manual

Model VibWire-101-Pro

Vibrating Wire Sensor Analyser

Data Recording Unit

Part No: VibWire-201-Pro

Data logging to micro SD memory card

Up to 32 gb Storage

Spreadsheet Format Data Files

Real-time Clock

Expansion Options

- 16 x 4 Wire Inputs

- 32 x 2 Wire Inputs

Manufactured by KEYNES CONTROLS LTD

Tel:

(0044) 118 327 6067

E-mail: sales@keynes-controls.com

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Summary of Contents for Keynes Controls VibWire-201-Pro

Page 1 - 32 x 2 Wire Inputs - 32 x 2 Wire Inputs - 32 x 2 Wire Inputs - 32 x 2 Wire Inputs Manufactured by KEYNES CONTROLS LTD Tel: (0044) 118 327 6067 E-mail: sales@keynes-controls.com Manufactured by Keynes Controls Ltd...
Page 2 MUX-16/32 Expansion Unit USB-485-Pro Media Converter USB-SDI12-Pro Media Converter This device is used to connect the VibWire-201-Pro to a This device is used to expand the number of sensor inputs This device is used to connect RS-485 based intelligent that can be used by the VibWire-201-Pro from a single Windows PC remotely across the SDI-12 digital network.
Page 3 Frequently Asked Questions - VW201-Pro want communicate with 3rd party logger - Network ID Number - How fast can the VibWire-201-Pro make a measurement - Where to download the Q-LOG Software - How to make a measurements using a PC without any programming experience...
Page 4: Product Changes
Product Changes Keynes Controls Ltd has an on-going policy of design review and reserves the right to amend the design of their product and this instruction manual without notice VibWire-201-Pro User Manual...
Page 5: Hardware Features
The Ethernet port is currently not used in the VibWire-201-Pro and has been added for future expansion. Micro-USB Port (Type B) The micro-USB port is used to configure the VibWire-201-Pro and to download data. Use the VW201pro configuration software tool assign sensor configuration information into the instrument.
Page 6 Input Signal Fig-5 Connection Sensor Port Real-time Results Thermistor Frequency As soon as the vibrating wire sensor is connected to the VibWire-201-Pro then the measurements Signal will be displayed on the display. temperature Coil sensor Frequency A typical display screen is shown opposite.
Page 7: Fitting Batteries
The battery level indicator will show 6V when a new set of batteries has been installed See Fig 11. Battery Life When operating as a single channel device using a new set of batteries the VibWire-201-Pro will operate for approximately 40 Hours continuous use.
Page 8 Voltage Voltage Once the calibration factors have been set, and the process option set to ‘2’ see The VibWire-201-Pro undertakes the spectral calculations on the incoming Fig 24 on page 11. vibrating sensor signal and gives the results immediately. There are no ‘User’ configuration settings required to be assigned in order to undertake a spectral calculation.
Page 9 The SDI-12 and RS-485 ports enable the VivbWire-201-Pro to transmit sensor data into third party data logger and acquisition systems. Device Port Selection To select the network port type for remote data acquisition operations on the VibWire-201-Pro, use the menu system to select either of the menu items shown below.
Page 10: Technical Specification
Temperature Measurements Technical Specification The current technical specification for the VibWire-201-Pro is: The VibWire-201-Pro is factory set to use the most common thermistor calibration factors that is fitted into most manufactures vibrating wire sensors. Description The thermistor is used to measure temperature.
Page 11 The VibWire-201-Pro cab be configured using the VW201cal.exe software which is available as a free download at: http://www.aquabat.net/downloads/VW201cal.zip Features The VW201cal software gives the User the ability to configure the VibWire-201-Pro in an easy to use Windows environment. Automatically sets time and date to host PC. Set the User defined frequency and temperature calibration factors.
Page 12 The 32 x 2 Wire sensor mode offers 32 x Frequency inputs or 32 x temperature measurements. The VibWire-201-Pro can record data internally onto a SD memory card, or remotely across a digital network to a stand-alone PC running the Keynes Controls Q-LOG applications software.
Page 13: Data Recording Options
The data table stores results in C.S.V. (Comma separated variable), for direct importing into spreadsheet such as Microsoft Excel. Data Recording Options The VibWire-201-Pro supports 3 x logging modes. Single Channel, 16 x 4 Wire and 32 x 2 Wire. Single Channel - Continually records a single measurement from a sensor connected to the sensor port on the device.
Page 14 VibWire-101 to a data table in the AquaLOG data logger. The same command should work on any suitable SDI-12 data logger. Get data: aD0! aD1! aD2! aD3! aD4! aD5! aD6! aD7! where each command aD0! returns 4 values 16 x Freq Readings 16 x Temperature Readings VibWire-201-Pro User Manual...
Page 15: Frequently Asked Questions
Network ID number Output Ports on the MUX-16/32 Unit Make sure the ID number used to identify the VibWire-201-Pro on a network is set correctly. Fig 33 Out-0 Port See menu system on page 29 section ‘Setting network address’ , or by the standard SDI-12...
Page 16 Selected Sensor 2534.86 3003.56 24.89 6424.95 1. Connect the MUX-Ctrl port on the VibWire-201-Pro to the Control port on the 992.28 2016-01-20 08:40::17 MUX-16/32 expansion unit. Figures 33 to 35, page 15 above show the wiring diagram for the MUX control ports.
Page 17 The example below demonstrates how to use the calibration factors on a sensor data sheet, and local initial conditions to determine the factors to be used by the VibWire-201-Pro to give results in SI Units. The example sensor data sheet, see Appendix-B page 32 gives results in kPa. Use suitable scaling factors to convert the output into other SI Units.
Page 18 The VibWire-201-Pro is integrated into the Q-LOG data acquisition software. Remote Mode Port = SDI-12 Address = 1 Important Note Measurement Count = 1032 The VibWire-201-Pro can be used with both the SDI-12 and RS-485 ports in Selected Sensor 2534.86 3003.56 the Q-LOG software. 24.89 6424.95...
Page 19 SDI-12 / RS-485 Supported Commands The following commands are supported by the VibWire-201-Pro and are used by data loggers and data acquisition systems. The commands have been included to allow the VibWire-201-Pro to operate easily with third party data loggers that support industry standard SDI-12 command set.
Page 20 Local Earth Local Earth to any other device. Diagnostics The VibWire-201-Pro is a perfect tool to assist engineers in the setup and diagnostics of Geotechnical systems. Connection to A common problem is that a geo-technical monitoring system seems to be...
Page 21 Repeat the operation until the ‘Frequency’ display appears. See Fig 15 page 8. Default Sample Rates 2534.86 The default sample rate for any VibWire-201-Pro in 32 x 2 wire is 1 minute Selected Sensor 2534.86 3003.56 The default sample rate for 16 x 4 wire mode operation is 30 seconds.
Page 22 R0.G.B = Constant Value = A in the Windows calibration factors Example. A model 5200 strain gauge is to be used with the VibWire-201-Pro to monitor strain on a bridge member. The gauge has been preset to operate at its mid-point and all subsequent measurements are to be taken from this initial condition.
Page 23 Keynes Controls recommends that option T0 be selected when setting up and new sensor, and only changed if proved inaccurate for a defined sensor. To write new calibration factors into a VibWire-201-Pro unit make sure that the device is connected to a USB port on the host PC running the VW201cal software.
Page 24 RS485 digital networks. Device USB Configuration Port Configuration Setup The simplest way to configure the VibWire-201-Pro is to use the free Windows VW201cal software which operates under the Microsoft Windows operating system. Use the USB cable provide with the instrument to connect the device to a port on a laptop.
Page 25: Temperature Measurements
The VibWire-201-Pro can make temperature measurements simultaneously to the frequency measurements when in 16 x 4 Wire mode. The VibWire-201-Pro can also act as a stand-alone temperature recorder in 32 x 2 Wire mode using the MUX-16/32 expansion unit. Factory Set Steinhart Hart Calibration Factors The VibWire-201-Pro is supplied pre-set to use 3.35E-3...
Page 26 Sensor Problems and Diagnostics The spectral display feature of the VibWire-201-Pro offers the user excellent tool for testing and diagnosing sensor problems. The ability to observe a sensor signal in the frequency domain enables the User to observe that a sensor installed and operating correctly. Should a sensor installation be badly installed then the spectra will show unusual spectral components.
Page 27 The fundamental frequency can vary considerably. The 3rd harmonic levels can become higher magnitude than fundamental and so the recorded results will be erratic. The VibWire-201-Pro results will oscillate to values between the fundamental and harmonic signal component. VW strain gauge - Badly seated flange plate...
Page 28 VibWire-201-Pro User Manual...
Page 29 APPENDIX-A Menu System Summary VibWire-201-Pro User Manual...
Page 30 Menu Options The following page shows a summary of the menu options used by the VibWire-201-Pro. Spectra Results Menu Selection Options Storing the menu option Menu-In Menu-In Sensor Nat Units Frequency Digits FFT Sensor Spectra Menu-In 992.28 2534.86 6424.95 Menu-Out...
Page 31 In the case of units shipped with the protective environmental cases then new battery sets should be included with the instrument. Power on the instrument With no sensor connected the instrument will default to the screen shown in Figure 11 on page 7 VibWire-201-Pro User Manual...
Page 32 APPENDIX-B Sample Calibration Data Sheets Sensors Piezometer Spot Welded Strain Gauge VibWire-201-Pro User Manual...
Page 33 The term (S1-S0) is a constant offset that allows for local atmospheric conditions and be taken from a barometer module such as models Barom-SDI12 or Barom-485. The VW sensor units have to be set to ‘Digits’ that is Hz /1000. VibWire-201-Pro User Manual...
Page 34 Linear calculation [mm] = GF x BF x (Current Reading - Site Zero Reading) Details in this example are for demonstration purposes only. No temperature calibration factors are included. The default factors specified by Keynes Controls are to be used. = 3.2234 x (Current Reading - Site Zero Reading) VibWire-201-Pro User Manual...
Page 35: Limited Warranty
(See Limited Warranty Conditions - Page 36) This covers defects which arise as a result of a failure in design or manufacturing. It is a condition of the warranty that the VibWire-201-Pro must be operated only in accordance with the manufacturer’s instructions and has not been subject to misuse.
Page 36 VibWire-201-Pro User Manual...
Page 37 E-mail: sales@keynes-controls.com , Web: www.aquabat.net Declaration of Conformity We Keynes Controls Ltd at above address declare under our sole responsibility that the product detailed below to which this declaration relates complies with protection requirements of the following harmonized EU Directives,...
Page 38: Wifi Modem
Remote Communication Options. The VibWire-201-Pro can be used with a range of communication devices to enable the device to transmit data across wireless networks for cable free operations. The devices include WiFI modem for connection onto popular industry standard WiFI networks, and wireless network modems data recording applications where cabling solutions cannot be practically installed.