Page 91 - Schroeder - Accessories

Fluid Level Indicators

The FSK fluid level sensor monitors the tank fluid level via an electrical switching signal. This switch signal can FSK Air Breathers
be used for a warning or to control the fluid level. The fluid enters the unit via the lower connection bore and
pushes a float up the tube. The float now shows the fluid level in the tank. If the level of the fluid drops again, Suction
the float will activate a switch contact. Switching contacts can either be Type O (opens when fluid is at low
level), Type C(closes when fluid is at low level), or type W(dual switching mode) which can be used either to Separators
close on contact or to open on contact. and
Strainers

Oil Sight
Glasses

Electronic
Sensors

Fluid Level
Indicators

Contact Ratings: Max. BW Specifications
Maximum Voltage: 50V AC or DC
Maximum Current: 200 mA (magnetic float inside the tube trips switch when fluid NOTE:
level drops within 50mm of lower bolt. See illustration FSA/FSK not suitable
for use with glycol
or fluids containing
glycol.

FSK...C (open at normal level) Electric Level
Switch
2
ground
1 FSK...C

Contacts CLOSE
when fluid level drops
BELOW switching level
FSK...O (closed at normal level)

2
ground
1 FSK...O

Contacts OPEN
when fluid level drops
BELOW switching level
Electrical Specifications

Contact Ratings
• Max. 8W
Maximum Voltage
• 50V AC or DC
Maximum Current
• 200 mA
Magnetic Float inside tube trips switch when fluid level drops
within 50mm of lower bolt. (see illustration)

SCHROEDER INDUSTRIES 89