Design And Measuring Principle - Burkert 8035 Manuel D'utilisation

2 SPECIFICATION

2.2 Design and Measuring Principle

Design
The Batch Controller 8035 Inline consists
of an electronic IP65 housing SE35 set
by quarter turn on the fitting S030. The
electronic housing integrates the electronic
board with display, programmation keys and
also a the transducer. The paddle-wheel is
mounted in the fitting.
The transducer component converts the
measured signal and displays the actual
value.The output signals are provided via
two cable glands.
Measuring and Dosing Principle
When liquid flows through the pipe, 4
magnets inserted in the paddle-wheel set in
rotation produce a measuring signal in the
transducer.
The frequency modulated induced voltage
is proportional to the flow velocity of the
fluid. A conversion coefficient, specific to
each pipe (size and material) enables the
conversion of this frequency into flowrate.
This coefficient (Factor-K in pulse/liter) is
available in the instruction manual of the
inline fitting (S030).
The controller 8035 Batch is mounted on a
pipe in series with the valve. The 8035 unit
measures the flow, calculates the volumes,
and operates the valve(s) according to the
selected program
(see § 4).
The controller electronic module 8035
Batch requires a power supply of
12-30 VDC or 115/230 VAC, depending
on the version.
BATCH CONTROLLER 8035
Dosing options
Following dosing modes are available
I) Local dosing command
a) The user enters the volume to be measu-
red and initiates the dosing from the keypad.
("LOC.MANU") (§ 4.3.1)
b) Local dosing with preset volumes. Selec-
tion of a pre-set volume and activation of
the process from the keypad.("LOC.MEM").
(§ 4.3.2)
c) Combination from "LOC.MANU" and
"LOC.MEM" options. activated from the key-
board ("MEM+MANU") (§ 4.3.1 + § 4.3.1).
II) Remote dosing command
a) Dosing controlled by binary inputs issued
from a PLC. Each pulse controls the dosing
of a preselected volume.("EXT.MEM")
(§ 4.3.4)
b) Automatic dosing controlled by the pulse
duration. The distributed volume is directly
proportional to the pulse duration
("EXT.[T]") (§ 4.3.3)
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