Appendix
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11.2 Technical specifications
Material and dimensions
Sensor unit housing
Dimensions
Fibre-glass reinforced Polyamide
Height 60 mm,
80 mm
Tensiometer shafts
Ceramic
Shaft material
Total length
Al
2
O
3
sinter, bubble point > 200 kPa;
5 mm
Acrylic glass;
5 mm
Lower: 25 mm
Upper: 50 mm
Cable
Length
1,5 m
Plug
4-pin LEMO
Measuring range
Pressure transducer
-300 kPa ... +300 kPa (electronically)
-85 kPa ... +300 kPa (physical)
Water tension
-85 (-450)kPa … 0 kPa depends on
refilling quality
Temperature
-30 °C ... +70 °C
Accuracy
Pressure
Temperature
±1,5 hPa / d = 0,05 hPa
±0,2 K (-10...+30 °C) / d = 0,01 K
Power supply
Power Vin
6 ... 10 V DC
Current consumption
6 mA nominal, (max. 15 mA)
Chemical resistivity
PH-range
pH 3 ... pH 10
Contact media
Limited for media that not affects silicon,
fluorsilicone, EPDM, PMMA or
polyetherimide
Protection
Housing with plug covered
IP 65 (splash water proofed)
Sensor units
Max. number of sensor units
which are supported by
tensioLINK
20
