V-Link 200 wireless node

Introducing our most advanced and high-performing wireless node to date. The V-Link®- 200 is LORD Sensing’s new wireless 8-channel analog input sensor, ideal for precise measurement of a variety of conditions—everything from voltage to acceleration.

Product Highlights

  • 8x higher sample rate (up to 4,096 Hz)
  • 4x more resolution (18-bit)
  • Dual power options (long-life battery and hardwired)
  • Four ±150 mVDC fully differential inputs
  • Four ±10 VDC single-ended inputs
  • Onboard memory for 8m data points
Datasheet Manual Software
Where to Buy?
U.S. International OEM

List Price:
$795.00

High Performance

Lossless data throughput and node-to-node sampling synchronization of ±50 μS in LXRS®-enabled modes

High resolution data with 18-bit A/D converter

Wireless range up to 1.5 km (500 m typical)

Ease of Use

Scalable networks for easy expansion

Rapid deployment with wireless framework

Remote configuration, acquisition, and display of sensor data with SensorConnect™

Optional web-based SensorCloud™ platform optimizes data storage, viewing, alerts, and analysis

Easy custom integration with open-source, comprehensive communications and command library

Cost Effective

Reduction of costs associated with wiring

Low-cost per channel with 8 input channels per node

General

Sensor input channels

Differential analog, 4 channels

Single-ended analog, 4 channels

Integrated sensors

Internal temperature, 1 channel

Data storage capacity

16 M Bytes (5+ million data points)

Analog Input Channels

Selectable measurement ranges

Differential: ±1.22 mV to ±156 mV DC (bridge completion factory-configurable)

Single-ended: ±2.56 V dc, ±5.12 V dc, ±10.24 V DC, 0 to 5.12 V dc, 0 to 10.24 V dc

Single-ended Input Impedence

1 Mohm

Input bandwidth

DC-4000 Hz (-3 dB cutoff)

Accuracy

± 0.1% full scale typical

Noise

± 0.02% full scale

ADC Resolution

18 bit

Temperature stability

0.1 % full scale over temperature range

Anti-aliasing filter

Differential Inputs: 128 to 4 kHz, Sallen-Key

Single-ended Inputs: -3dB at 15kHz, Two-pole

Bridge excitation voltage

+ 4.096 V dc (150 mA max)

Measurement gain and offset

User-selectable in software on differential channels gain values from 16 to 2048

Integrated Temperature Channel

Measurement range

-40 °C to 85 °C

Accuracy

± 1 °C (at 25 °C) typical

Resolution

0.1 °C

Sampling

Sampling modes

Synchronized, low duty cycle, datalogging, event-triggered

Sampling rates

Continuous sampling: 1 sample/hour to 4 KHz*

Periodic burst sampling: 32 Hz to 8 KHz*

Datalogging: 32 Hz to 4096 Hz

Sample rate stability

± 5 ppm

Network capacity

Up to 127 nodes per RF channel depending on sampling settings. Refer to the system bandwidth calculator: http://www.microstrain.com/configure-your-system

Synchronization between nodes

± 50 μsec

Operating Parameters

Wireless communication range

Outdoor/line-of-sight: 1.5 km (ideal), 800 m (typical)**

Indoor/obstructions: 250 m (typical)**

Radio frequency (RF) channel allocation

2.405 to 2.470 GHz spread spectrum over 14 channels

 

RF communication protocol

IEEE 802.15.4, FSK/GMSK

RF transmit power

User-set from 0dBm to 20 dBm. CE limits maximum transmit power to 10 dBm in EU

RF receive sensitivity

-99.4 dBm

RF transmission rate

250 kbps

Power source

Internal: 4 replaceable 3.6 V DC, 2.4 Ah Lithium AA-cell batteries

External: +7.5 to +36V DC

Operating temperature

-40 ˚C to + 85 ˚C

Acceleration limit

100 g

Physical Specifications

Dimensions

129 mm x 82.5 mm x 31 mm

Weight

283 grams (with batteries), 217 grams (without batteries)

Environmental rating

Indoor use

Enclosure material

Molded polycarbonate

Integration

Mounting

Bolt-down or DIN-rail mount

Compatible gateways

All WSDA® base stations and gateways

Compatible sensors

Differential analog sensors, -10 to +10 V DC analog sensors

Connectors

Screw terminal block (M4 circular connectors on IP67 faceplate)

Shunt calibration

Internal shunt calibration resistor 499 KΩ, differential channels

Software

SensorCloud™, SensorConnect™, Windows 7 (or newer)

Software development

Open-source MicroStrain Communications Library (MSCL) with sample code available in C++, Python, and .NET formats (OS and computing platform independent): http://lord-microstrain.github.io/MSCL/

Regulatory compliance

FCC (U.S.), IC (Canada), CE, ROHS

*Divide maximum rate by number of active channels
** Line of sight with antenna at 3 meters

Mechanical Drawing

Firmware

The V-Link-200  has 4 strain gauge channels that come from the factory set to Full-bridge.  When ordering these units, you must specify the bridge completion for each channel.  Half and quarter bridge completions are available and channels can be mixed and matched.  These completions are accomplished in the factory as part of the final assembly, 

See the V-Link 200 user's manual http://www.microstrain.com/sites/default/files/v-link-200_user_manual_85... on how to connect strain gauges (page 44 -45), and pages 57 - 59 on how to calibrate the strain gauge to output µstrain with the V-link-200.

The LORD MicroStrain V-Link-200 supports a wide range of Wheatstone bridge and analog sensors including acceleration, vibration, strain, load cells, torque, pressure, magnetic fields, displacement, etc.

As a basic function of support for these sensors, the node measures small voltages. The nodes can actually be repurposed to measure small currents. This is useful, for example, if one wanted to add the wireless capability of the nodes to a 4 to 20 mA sensor. See pages 50-51 of the V-Link 200 user's manual http://www.microstrain.com/sites/default/files/v-link-200_user_manual_85... for more information.

LORD MicroStrain® insures all products shipments to their full value unless the customer specifically states a different method.

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