Flow Measurement and Monitoring
FOS01
Optoelectronic
Level Switch
•
for liquids
•
small and compact, no mechanics
•
easy installation
•
switching status indication by LED
•
low maintenance
•
max. pressure: 50 bar
•
max. temperature: 135 °C
Description:
An optical sensor is mounted in a robust stainless steel
housing. It consists of a quartz glass tip with an infrared diode
as transmitter and a light-sensitive semiconductor as receiver.
If no liquid wets the sensor tip, the infrared light is completely
reflected from the inside of the quartz glass.
However, as soon as it is immersed in the medium, a large
part of the transmitted light can be escape into the liquid. This
is registered by the receiver, which then initiates a switching
process at the PNP transistor output of the device, which is
indicated directly by a green LED.
Typical applications:
The field of application for optoelectronic level indicators is the
detection of limit values in a large number of liquids. The
advantage here is that the measurement method is largely
independent of physical variables such as refractive index,
color, density, dielectric constant or conductivity. The very
compact design guarantees minimal space requirements,
making measurement in very small volumes possible. The
arbitrary mounting position as well as the high pressure and
temperature ranges offer a wide range of applications.
PKP Prozessmesstechnik GmbH
Borsigstr. 24 • D-65205 Wiesbaden
S
+49 (0) 6122-7055-0 •
T
+49 (0) 6122 7055-50
[email protected] • www.pkp.de
20190907
