Vibrating Wire Digital Converter

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* Date last updated : 2025.08.29

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Supplier Info.

Company Name Dong-A Geovan Co., Ltd.
Membership TradeVerify
Registration Date2003.03.29
Country/RegionKorea
CityGijang-gun
Contact Jessica Lee(Ms.)
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Dong-A Geovan Co., Ltd.

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Product Attributes

- Model Number VW-RS485
- Place of Origin Korea
- Supply Type In-Stock Items
- Condition New
- Related Keywords digital converter

Description by Manufacturer

Vibrating Wire Digital Converter

Model : VW-RS485

It is precise smart converter from VW analog input to Digital output RS485.
A node can read 4EA VW and 4EA Temperature signals.

The VWRS485 signal converter can read out all types of vibrating wire transducers of sweep Hz range 450 to 6000.

It is able to connect multiple daisy chain VWRS485 signal converter up to 32EA so It helps easy many VW data collecting through one line communication cable.

Simply input, A PC can read and record 128EA VW and Temperature.
128EA = 4channels x 32nodes

Compact design allows stable data gathering. In particular, individual signals can be collected filtering to make low noise level.

The end user can record data direct to a PC or collect data through a data logger which can support Modbus RTU function. There are two mode before placing an order.

Modbus RTU mode / Geovan PC program

Monitoring Structure

Geovan PC Program allows you to automatically collect and record data at regular intervals. Modbus RTU can be used by connecting to a data logger, RTU, PLC or PC. You must choose the protocol between Geovan PC or Modbus before shipping the product. The Rom writer sold separately helps to set up firmware by yourself in case of amended internal protocol. If you set up FTP on your PC, You can have access into the data at any time even from remote places.

Specification

PCB Size	80 x 58 x 11mm
Maximum number of connectign converters by Daisy Chain	32Ea
Number of Reading Channel(Differential Measurement)	Vibrating Wire 4EA, NTC Thermistor 4EA
Selectable Input Power Level	12Vdc or 5Vdc selection, Default 12Vdc
Adjustable Reading Interval	1minute to 720minutes
Selectable Reading Count for Average	1 to 5 times

PCB Details

#1 for vibrating Wire Sensor Wiring

+,- for VW Sensor Signal
T1, T2 for Temperature Reading
No Polarity of VW and Temperature
E for Shield Wire Earth(Ground)

#2 for RS485 Signal Wiring(Output

+,- for power supply 8Vdc to 15Vdc
It has polarity. Becareful wiring +,-
A+B- for RS485 signal converter
E for Shield Wire Earth(Ground)

#3 for Power Selection

12Vdc power range from 8Vdc to 15Vdc
5Vdc should be constant 5Vdc exactly.
If not, the PCB will be serious damaged.

#4 for Firmware Coding Port by Rom writer

Send Modbus RTU or RS485 geovan protocol through the port.

Mode of Vibrating Wire

Display mode	Item	Calculation	Units	Frequency Sweep(Hz)
A	All	Frequency	μ seconds	450~6,000
B	Load cell, TPC, Piezometer	F² x 10^-3	Digits	1,200~3,500
C	Arc weldable strain Gauge	F² x 10^-3 x 4.062	μStrain(ε)	450~1,000
D	Embedment strain Gauge	F² x 10^-3 x 3.304	μStrain(ε)	450~1,000
E	Spot weldable strain Gauge	F² x 10^-3 x 0.39102	μStrain(ε)	1,000~3,500
Temperature	NTC 3kΩ at 25°C	Table Sheet	Thermistor

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Company Profile

About Dong-A Geovan Co., Ltd.

Membership
Registration Date2003.03.29
Country/RegionKorea
CityGijang-gun
Contact Jessica Lee(Ms.)

We, Dong-A Geovan is offering various types of special purpose instruments to monitor subtle displacement of structure and ground movement.

Our goal is to provide optimized soultion just in time.

Especially Geovan's products such as ABS Inclinometer Casing, Load Cell, VW Strain Gage, Wirelss Data Logger, EL Tiltmeter etc will guide you to meet successful projects.

Should you have any questions, Please contact us at anytime.

Thank you.

Selling Categories

- Construction & Real Estate >> Other Construction & Real Estate
- Electrical Equipment & Supplies >> Other Electrical Equipment
- Electronic Components & Supplies >> Other Electronic Components

Keywords

inclinometer , inclinometer casing , tiltmeter , strain gauge , piezometer , embebment strain gauge , Bentonite Chip

Registration Date	2003/03/29(Year/Month/Date)
Buyer / Seller in EC21	Seller
Business Type	Manufacturer
Year established	1996
Employees total	101 - 500
Annual revenue	USD 5,000,001 - 10,000,000

Contact Information Order Credit Report

Company	Dong-A Geovan Co., Ltd.
Address	40, Ballyongsandan 2-ro, Jangan-eup,Gijang-gunBusan46034Korea
Phone	82 - 51 - 3155067
Fax	82 - 0504 - 3320963
Homepage	www.geovan.com
Contact	Jessica Lee / CEO

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Vibrating Wire Digital Converter

Product Attributes

Description by Manufacturer

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