VS-SINGLE/VS-TWIN TENSIOMETER CONTROLLED VACUUM SYSTEMS
The VS series of vacuum systems from UMS are capable of applying a constant or tension-controlled vacuum for long-term monitoring projects.
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.
Long term monitoring projects
Studies on leachate under defined conditions
Soil water extraction from a certain pore size with a vacuum which is exactly suitable to the pore size
High accuracy vacuum pump
Two vacuum outlets
Selectable constant or tension controlled vacuum
Optimized for use with rechargeable batteries
Input for one tensiometer: T8, T4, or T5
Multiple configuration options
Configurable only by PC or Laptop
|SUPPLY||10.5 to 15 VDC|
||approx. 15 mA|
||approx. 1 mA|
||50 to 800 mA|
|ANALOG OUTPUT||2 x 0 ... 1 V, ... 2 V, ... 5 V|
||0 to -85 kPa|
||± 0.05 kPa|
|DIMENSIONS||26 cm x 16 cm x 10 cm|
|PROTECTIVE RATE||IP 66|
|OPERATING TEMP.||-10°C to 45°C|
|VACUUM COLLECTION SYSTEM||VPS-2||Vaccuporter||VS-Single||VS-Twin||VS-Pro|
|VACUUM METHOD||Hand Operated Pump||Electric Pump||Electric Pump||Electric Pump||Electric Pump|
|TENSIOMETER CONTROLLED EXTRACTION||No||No||Yes||Yes||Yes|
|DIGITAL DISPLAY AND KEYPAD||No||No||No||No||Yes|
|EXTERNAL POWER REQUIRED||No||No||Yes||Yes||Yes|
Sampling bottles and storage box
Soil water sampling bottles made of Duran glass, available in three sizes.
- Implosion proof
- Plastic coating as chip guard
- Silicon rubber gasket with two connectors
- 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 isolating material.
- Latches shut the box securely.
- The suction tubes are led through sealed fittings on the side of the box.
Size: 40 cm x 30 cm x 28 cm
|500 mL bottle||SF-500|
|1000 mL bottle||SF-1000|
|2000 mL bottle||SF-2000|
|Box with lid||SF-Box|
TensioLINK USB converter
The tensioLINK USB converter is used for directly connecting sensors and devices with serial tensioLINK to a PC. One can configure features and read out measured data.
UMS devices with 8pin M12 connectors (e.g. TS1 or T8 tensiometers) could be directly connected to the converter without the need for a further power supply. The sensor is powered through the USB interface.
Use with the PC-Software tensioVIEW. Manual Software and Driver come along with supplied CD.
|Sensor Supply||9 VDC / 100 mA tolerance +1 V|
|Short Circuit||2 Min.|
|Galvanic Isolation||1 kV|
|Serial Sensor Interface||RS485-2 wire, ESD protection 15 kV|
|USB interface||compliant to USB 1.1 and 2.0|