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
OAA-300
Alarm Indicator (Measuring Transducer) with general approval for construction
Our alarm indicators type OAA-300 are stand-alone signaling devices with optic and acoustic alarm indication.
Properties
Protection class EN60529
:
IP 65
Operating temperature
:
– 20…+60 °C
Storage temperature
:
– 30…+80 °C
Sensitivity
:
bei konduktiver Messung: 3, 10, 30, 100kΩ
Dimensions
:
170 x 190 x 85 mm
Weight
:
ca. 0,8 kg
Control circuits
Open circuit voltage
:
max. 10 V DC
Short-circuit current
:
max. 10 mA
Switching delay
:
ca. 0,5 s
Power supply
nominal voltage
:
230 V AC (optional 24, 115, 240 V AC 24 V DC
Nominal frequency
:
48...62 Hz
Power consumption
:
max. 3 W/VA
Output
Switching voltage
:
max. 250 V
Switching current
:
max. 3 A
Switching capacity
:
max. 500 VA | max. 50 W
Volume
:
75 dB
QFS-5x | QFS-6x
Teflon float switch for all kinds of liquids up to 150°C
The float of the QFS-50 and QFS-60 float switches is made of Teflon. Inside the float, one or two reed contacts with a movable permanent magnet are inserted as a switching element.