The vanwaltDataSlave is perfectly suited for situations when data needs to be collected from sensors deployed in locations which are difficult to access, for example restricted areas.
The vanwaltDataSlave can be daisy chained, up to a quantity of 50, with an automatic connection to telemetry hubs such as the vanwaltDatahub.
The vanwaltDataSlave accepts an input from a sensor which measures single or multiple parameters. The vanwalt DataSlave turns any sensor into a wireless unit. It sits at location and transfers sensor measurements. The unit is provisioned with a radio "tile" which enables it to communicate with a PC or a vanwaltDatahub wirelessly over a considerable distance, up to 10km line of sight.
If the connected sensor has memory then the vanwaltDataSlave transmits the data from the sensor's internal memory. If the sensor does not have memory then the DataSlave collects the data from the sensor and stores it inside its own onboard memory.
The vanwaltDataSlave was designed by and manufactured in the UK under license from Van Walt Ltd.
The vanwaltDataSlave is powered by 2 internal AA type cells. Depending on the connected sensor, these batteries should last between 12 and 36 months. The batteries are standard and readily available and can be easily changed by the user.
The unit will interface with a multitude of sensors whether by Modbus, SDI-12, Pulse count or a cabled connection. It will integrate data logging into any sensor to allow recovery of that data wirelessly. Can connect wirelessly to telemetry systems.
1 Operating temperature range will be determined by the battery. Alkaline AA batteries will limit the unit to -20 °C +54 °F
Under good line of sight conditions, it should achieve a range of 10km at its lowest data range. Range is most affected by the terrain and antenna height.
For external 12 V Battery when using higher power sensors
The supply to the sensor will be switched on and off as required to save power
This is an optional connector for future expansion. It can count on positive or negative edges and detects a closure to ground.
For anyone who wants to transfer data remotely the vanwaltDataSlave allows for quick, cable-less installation without the need for extensive groundworks so is ideal for difficult to access sites like:
*Range: 10 km (line of sight)
Every vanwaltDataSlave contains a Network Capable radio 'Fleck Tile' that covers the 434, 869 and 915MHz license exempt frequency bands for worldwide use. It has low power consumption so can last up to 3 years on two AA batteries with 15-minute sampling intervals.
Rugged, robust Panorama LPB low profile antenna
Protected by a robust high impact radome the antenna is almost impervious to daily wear, tear and impact. It covers public safety / LTE frequencies across 700 and 800MHz as well as all global cellular frequencies from 698-960 MHz and 1710-2700MHz.
Provides a direct wireless line of communication from a PC to a vanwaltDataSlave to take readings directly from any connected sensor. This allows for remote data download of stand-alone data logging applications.
Via Weidmuller Omnimate 5.08 mm pitch connectors. Cables pass through M16 (3-7 mm cable diameter) IP68 cable glands fitted to the bottom of the enclosure case.