®

VS-Pro
Tensiometer-Controlled Vacuum System LCD Display

The VS-pro series of vacuum systems are capable of applying a constant or tension-controlled vacuum for long-term monitoring projects. Keyboard display allows for status checks and configuration without hooking it up to your PC. Applications include long-term monitoring, defined pore water sampling, defined leachate measurements, lysimeter sites, and tension-controlled sampling.

The constant vacuum method

The constant vacuum method is continuously maintained by a regulated vacuum pump. The vacuum can be set between atmospheric pressure and 85 kPa.

Tension-controlled extraction

A tensiometer measures the soil water tension.  The programmable vacuum station VS automatically supplies a vacuum in correspondence to the measured tension.  Due to the numerous functions of the unit an optimal adaptation to the sampling task is possible.

Benefits

  • LCD display and keypad for basic status check and configuration
  • Continuous display of readings and status on the LCD
  • LCD backlight and multicolor LED
  • High accuracy vacuum pump
  • Two vacuum outputs
  • Selectable constant or tension controlled vacuum
  • Optimized for use with batteries or they can be hardwired and plugged into your power supply
  • Option for tensiometer input: T8, T4, or T5
  • Multiple configuration options
  • Integrated data logger

Optional sampling bottles and storage box

Soil water sampling bottles made of Duran glass, available in three sizes. Bottles are implosion proof, have a plastic coating as chip guard. They also feature a silicon rubber gasket with two connectors, and there is an accessory clip for upright attachment on walls. In the sampling bottle box, up to 6 sampling bottles can be stored. The lid is covered with insulating material, latches shut the box securely, and the suction tubes are led through sealed fittings on the side of the box.

 

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Specifications

SUPPLY

10.5 to 15 VDC

CURRENT CONSUMPTION

Operating average: Approx. 16 mA 

Standby: Approx. 2 mA

While regulating: 50 to 800 mA

INTERFACE tensioLINK, RS485
ANALOG OUTPUT 2 x 0 … 1 V, … 2 V, … 5 V
VACUUM REGULATION

Range: 0 to -85 kPa

Accuracy: ± 0.05 kPa

MEMORY 5000 readings
DIMENSIONS 26 cm x 16 cm x 10 cm
PROTECTIVE RATE IP 66
OPERATING TEMP. -10 °C to 45 °C
ENCLOSURE Aluminum

 

 

Downloads

VS-Single, VS-Twin, VS-Pro Manual Manual PDF, 2.4MB
Soil water extraction methods Manual PDF, 0.59MB
TENSIOVIEW SOFTWARE DOWNLOAD Software EXE, 8.9MB

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