Continuous and precise level measurement in unpressurised, open basins and tanks as well as underground applications such as shafts, wells and boreholes.
Properties
Protection class EN60529
:
IP68
Operating temperature
:
-10...70 °C (PVC: -10...60 °C)
Storage temperature
:
-25...70 °C (PVC: -10...60 °C)
Power supply
:
15...30 V DC
power
:
max. 25 mA
Output
:
2-Leiter-Technik
Measuring range
:
0,8...10 mWs (Standard)
Overpressure
:
abhängig vom Messbereich
Deviation from characteristic curve
:
Nichtlinearität,
Insulation resistance
:
> 100 kΩ
Short-circuit resistance
:
permanent
Reverse polarity protection
:
keine Schädigung o. Funktion bei vertauschten Anschlüssen
Cable
:
PVC, PUR, FEP (Ø8 mm; 2 x 0,25 mm2 mit Luftschlauch und PTFE-Filter
PVS-390
PVC float with magnet insert
for actuating monostable and bistable contacts
Variants
40
:
AußenØ 40 x 165 mm, für RohraußenØ 50 mm Gewicht ca. 145 g
50
:
AußenØ 50 x 125 mm, für RohraußenØ 63 mm Gewicht ca. 156 g
NP-255
Level Switch - multiple 2...4 - pneumatic
very reliable and simple
sensors for scanning liquids, in
particular when used for overflow
protection. liquids can be
aggressive, sticky or highly contaminated
Properties
Protection class EN60529
:
IP 54
connection thread
:
ab G2”
Union nut
:
ab G2¾”
Container connection flange
:
ab DN 25
Hose Ø
:
16 mm
Operating temperature
:
+60 °C
medium temperatur
:
max. +60 °C
Contact
:
Wechsler
Switching capacity
:
500 VA
Switch-on point (Viton membrane)
:
150 mm WS ±30 mm
Switch-off point (MembraneViton)
:
90 mm WS ±30 mm
Material
Pitot tube / Hose
:
PVC
Screw fitting/grommet
:
PVC
flange
:
PVC
Connection head
:
PVC
Switching voltage
silver
:
max. 250 V AC
Gold
:
max. 24 V AC
Switching current
silver
:
max. 6 A
Gold
:
max. 100 mA
EF2 24...230 V
Conductive electrodes with 24...230 V direct connection
The EF2 overfill protection (24...230 V AC/DC) is approved by "DIBt" as an overfill protection for liquids hazardous to water.