QFS-20 & QFS-21 float switches have stainless steel floats and one or two reed contacts.
Properties
Protection class EN60529
:
IP68
Material Float
:
VA 1.4571
Material hose
:
Edelstahlwellschlauch (1.4404) mit Edelstahldrahtumflechtung (1.4301)
Operating temperature
:
max. + 150 °C
media density
:
ρ ≥ 0,8g/cm³
Switching system
:
Reed-Schalter
Contact
:
Wechsler, NO, NC
Switching voltage
:
4...250 V AC/DC
Switching current
:
1 mA ...1 A
Switching capacity
:
max. 1A, 60 VA/60 W
Switching hysteresis
:
ca. 100 mm
Switching angle
:
ca. + 20° / – 20°
Operating pressure (QFS-20)
:
max. 15 bar
Operating pressure (QFS-21)
:
max. 6 bar
TK-303
Level transmitter for Ex-Zone 0 (Cat.1)
T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.
Technical Data
connection
:
Dose
Protection class
:
IP 65
Float type
:
03, 04, 09
Sliding tube length
:
max. 6000 mm
Operating temperature
:
max. 135 °C
Operating pressure
:
max. 20 bar (Kugel) max. 15 bar (Zylinder)
Resolution
:
7,5 mm | 10 mm
Accessories
:
R/I-Wandler TK-101
MaterialDensity
Type 03
:
0,75 g/cm³
Type 04
:
0,65 g/cm³
Type 09
:
0,76 g/cm³
KR-268
2-Kanal Kontaktschutzrelais mit WHG-Zulassung
universelle Messumformer. die Eingangssignale (Widerstandswerte) mit „Namur”-Spezifikation (DIN EN 60947) in Schaltsignale potentialfreier Ausgangskontakte umsetzen.
Properties
ltdata.SchutzartKlemme
:
IP 20
Protection class Housing
:
IP 40
Operating temperature
:
–20...+60 °C
Storage temperature
:
–30...+80 °C
AC nominal frequency
:
48...62 Hz
Power consumption
:
max. 1 W / VA
Weight
:
ca. 150g
tdata.Eingang(NAMUR)
Open circuit voltage
:
8,6...9,6 V
Short-circuit current
:
8,2...10,2 mA
Switching delay
:
< 0,5 s
Output
potential-free changeover contacts
:
1 pro Kanal
Switching voltage
:
min. 5 V | max. 250 V AC / 150 V DC
Switching current
:
min. 5 mA | max. cosφ=1 3 A | max. cosφ=0,7 3 A/AC | max. cosφ=1
Switching capacity
:
min. 300 mW | max. 750 VA / 150 W (30 V DC / 5 A) 18 W (150 V DC / 0,12 A)
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