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
BK-390
Bistable change-over contact
Magnetically actuated changeover switch,
which permanently changes its electrical switching state as a result of a magnetic system passing by, depending on the direction of movement.
Properties
Protection class EN60529
:
IP 65
Operating temperature
:
–25...+70 °C
Wire cross-section max.
:
1,5mm²
Switching point distance between two contacts
:
min. 40 mm
Switching hysteresis
:
ca. 10-15 mm
Material
Housing
:
Polycarbonat
Mounting clip
:
V2A, Kabelbinder (PP)
Rivet
:
V2A
Screw connection
:
M 20 x 1.5, Polyamid
Weight
BK-390-50
:
137 g
BK-390-63 / BK-380
:
140 g
Switching contact
Switching voltage
:
5...250 V AC/DC
Switching current
:
1mA...6 A AC/DC
Switching capacity(min.)
:
300 VA, 60 W
Switching capacity(max.)
:
5 mW
ZDS-N
Precision pressure switch for low pressure applications
Can be used in oil, brake fluid, diesel, air and other gases.
With very good stability and overpressure resistance.
technical properties
Pressure range
:
0...500mbar gestuft
supply
:
12 - 24 V DC
Output
:
Relais 230 V/1A
overload
:
2 x Messbereich
Med. connection
:
Schlauch
electrical connection
:
Schraubklemme
feature
:
Tasten, LCD-Anz.
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
TK-312
Evaluation unit with 0/4... 20 mA current output
The TK-312 measuring transducer converts the resistance signal supplied from a continuous level sensor into a current signal proportionate to the level.
Properties
Protection class EN60529 clamp
:
IP 20
Protection class EN60529 front panel housing
:
IP 40
Operating temperature
:
–20...+60 °C
nominal voltage
:
24... 230 V AC/DC
Power consumption
:
2 VA, 2W
Dimensions housing type B
:
22,5 x 114,5 x 99
Dimensions housing type C
:
22,5 x 114,5 x 114
Input
Voltage
:
0...10 V
Resistance in three-wire circuit RG
:
0-4...10 kW
Output
Temperature influence tolerance
:
max. ± 0,6 % der Signalspanne
Current output
:
0/4... 20 mA bezogen auf die Masse des Eingangs
Voltage output
:
0/2... 10 V
Mounting
:
Tragschiene nach EN 50022
Weight
:
175 g
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