Datasheet

2 Specifications are subject to change without notice (02.03.2006)
Specifications (cont.)
Mode of Operation
The sensor contains IR trans-
mitter, receiver and amplifier
with transistor or SCR output.
The light source is a Ga-As
diode emitting infrared light.
The conical tip of the sensor
forms an angle of 90ºC. This
angle acts as a prism, i.e. the
beam, emitted from the Ga-
As diode placed in one side
of the sensor head, is reflect-
ed internally to the phototran-
sistor placed in the other side
of the sensor head, provided
that the tip of the sensor is si-
tuated in free air. If the sensor
tip is immersed in a liquid,
always having a refractive
index different from air, the
beam will not be refracted by
the prism and the photo tran-
sistor will not receive any sig-
nal.
The sensor types can operate
in oil, waste water, aqueous
solutions such as beer, wine,
alcohol etc. without any kind
of accessory.
Dimensions
Wiring Diagrams
A
B
DC-types AC-types
A mm Ø 6.0 Ø 6.7
B mm Ø 4.1 Ø 5.2
VP01-...TB VP02-...TB
VP01E, VP03E VP01EP, VP03EP
Pipe thread ISO 228/1-G 3/8”
BN
BK
BU
BU
BK
BN
Transistor NPN/PNP SCR output AC types
Environment
Degree of protection IP 67 IP 67
Operating temperature -20° to +80°C (-4° to +176°F) -20° to +80°C (-4° to +176°F)
Storage temperature -40° to +100°C (-40° to + 100°F) -40° to +100°C (-40° to + 100°F)
Indication for output status LED, yellow LED, yellow
Housing and tip material
VP01/02 Polysulphone Polysulphone
VP03/04 Polyamide 12
Weight 90 g 90 g
Connection Cable (PVC), 2 m Cable (PVC), 2 m
Ø4,1 mm, 3 x 0,25 mm2 Ø5,2 mm, 2 x 0,5 mm2
Pressure 10 bar at + 60ºC 10 bar at + 60ºC
Pipe thread 3/8” PT 3/8” PT
VP, unmodulated
VP02E, VP04E VP02EP, VP04EP
BN
BK
BU
BU
BK
BN
BN
BU
BN
BU