VP01E - Carlo Gavazzi Group

Specifications are subject to change without notice (05.11.99) 1

• Unmodulated infrared sensor for liquid

level detection

• Approved for Ex-applications (DC-types)

• Built-in amplifier, Ga-As diode

• Output: Transistor NPN/PNP or SCR, make or break

switching

• High chemical resistance to most acids and bases

• VP01/03: Output OFF when sensor in liquid

• VP02/04: Output ON when sensor in liquid

• No electrical or thermal connection between liquid

and electrical circuit

• LED-indication for output ON (only DC types)

• Power supply: DC types: 10 to 40 VDC

AC types: 110 or 230 VAC

Level Sensors

Product Description

Optical level sensor with un-

modulated, infrared light for

the detection of liquids.

Fitted with built-in amplifier.

Transmitter and receiver are

completely self-contained in

solid plastic housing designed

for mounting into container

wall. VP01/02 are available

in a Polysulphone housing

resistant to most acids and

bases. VP03/04 are avail-

able in a Polyamide 12

housing resistant to various

solvents.

Type

Housing

Output status

Output type

PNP output

Type Selection - DC Types (Ex-approved)

Housing material Ordering no. Ordering no. Ordering no. Ordering no.

Transistor NPN Transistor NPN Transistor PNP Transistor PNP

Make switching Break switching Make switching Break switching

Polysulphone VP 02 E VP 01 E VP 02 EP VP 01 EP

Polyamide 12 VP 04 E VP 03 E VP 04 EP VP 03 EP

Type Selection - AC Types

Housing material Ordering no. Ordering no. Ordering no. Ordering no.

Make switching Break switching Make switching Break switching

110 VAC 110 VAC 230 VAC 230 VAC

Polysulphone VP 02-110TB VP 01-110TB VP 02-230TB VP 01-230TB

Specifications

Transistor NPN/PNP SCR output AC types

Rated operational voltage 10 - 40 VDC 110 VAC: 100 - 121 VAC, 45 - 60 Hz

230 VAC: 195 - 265 VAC, 45 - 60 Hz

Rated operational current

Continuous 200 mA 10 - 100 mA

Voltage drop ≤1.0 VDC ≤9.0 VAC

No-load supply current ≤12 mA ≤7 mA

Sensing accuracy

Liquid level difference Horizontal mounting: ± 5 mm Horizontal mounting: ± 5 mm

Vertical mounting: ± 2.5 mm Vertical mounting: ± 2.5 mm

Ambient light 0 - 100 lux 0 - 100 lux

Frequency of operating cycles (f) 30 Hz 5 Hz

VP 0 3 E P

Optical

Type VP, Unmodulated

Ordering Key

2Specifications are subject to change without notice (05.11.99)

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 reflected

internally to the phototransis-

tor 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

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”

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 -

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

Pressure 10 bar at + 60ºC 10 bar at + 60ºC

Pipe thread 3/8” PT 3/8” PT

Ex-approval DEMKO certificate of conformity

no. 92C.103973X

VP, unmodulated

VP02E, VP04E VP02EP, VP04EP