Design And Measuring Principle - Burkert SE35 Notice D'utilisation

2 SPECIFICATION

2.2 Design and Measuring Principle

Design
The Batch Controller SE35 Inline consists
of an electronic IP65 housing Type 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 PG 13.5.
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 SE35 Batch is mounted on a
pipe in series with the valve. The SE35 unit
measures the flow, calculates the volumes,
and operates the valve(s) according to the
selected program (see § 4).
BATCH CONTROLLER SE35
The controller electronic module SE35
Batch requires a power supply of 12...30
VDC (230/115 VAC as option).
Dosing options
Following dosing modes are available
I) Local dosing command:
a) The user enters the volume to be
measured and initiates the dosing from the
keypad. ("LOC.MANU") (§ 4.3.1)
b) Local dosing with preset volumes.
Selection 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
keyboard ("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 ditributed volume is directly
proportionnal to the pulse duration ("EXT .
[T]") (§ 4.3.3)
E-4-
8035