Specification; Design And Measuring Principle - Burkert 8030 Notice D'utilisation

2 SPECIFICATION

2.3 Design and Measuring Principle

Design
The 8030 flow sensor is made of a compact
fitting type S030 and an electronic module
type SE30 which can be easily connected
together by means of a quarter-turn system
(bayonet).
The output signal can be displayed or
processed directly. The output signal is
provided via a 4-pole cable plug according
to DIN 43650.
In the versions with 4...20 mA 5 or
adjustable pulse output 4, an additional
IP65 housing is pluged on the sensor instead
of the cable plug. The output signals are
available on a terminal strip inside the
enclosure via a PG 9 cable gland.
All parts contacting the fluid are in PVDF or
ceramic, enabling the use of the sensor in
aggressive fluids.
Measuring Principle
When liquid flows through the pipe, 4
magnets inserted in the paddle-wheel set
in rotation produce a measuring signal in
the 8030 transducer (coil or Hall Sensor).
FLOW SENSOR TYPE 8030
The frequency modulated induced voltage
is proportional to the flow velocity of the fluid.
A correlation coefficient (K-factor) specific
to each fitting diameter and material is
necessary to compute the flow-rate value.
The correlation coefficient (K-factor pulse/
l) is available in the instruction manual of
the Inline fitting type S030.
A minimum flow velocity from 0.3 m/s (1.0
ft/s); flow value of 3 l/min in a DN15 pipe is
required to ensure the flow measurement.
1 The flow sensor 8030 with coil requires
no external power supply . This flow sensor
can be only be operated with Burkert flow
indicators/totalizers (8025; SE34) wall-
mounted battery powered.
2 The flow sensor 8030 with Hall Sensor
requires an external power supply of 12...30
VDC. It is designed for connection to any
system with open collector frequency input
PNP or NPN.
3 The flow sensor 8030 with Hall sensor
"Low Power" is designed for use with Burkert
flow transmitters or indicators (8025; 8021;
8023; 8600; SE34).
4 The flow sensor 8030 with adjustable
frequency output module type 8021 requires
an external power supply of 12...30 VDC. It
is designed for connection to any system
with open collector frequency input PNP or
NPN.
5 The flow sensor 8030 with 4...20 mA
output module type 8023, runs in 2-wires
system and requires an external power
supply of 12...24 VDC.
E-4-
8030