Evoqua WALLACE & TIERNAN MFC, Instruction Manual

Page: 46 / 268

46
WT.050.580.000.DE.IM.0714
Functions
MFC
4.
4.2 Measurement inputs
In principle, the following sensor measuring module types or
retrofit kits can be installed at module slots 1 to 4:
DES - for DEPOLOX
®
5 flow block assembly
DES - for DEPOLOX
®
4 flow block assembly with
PT100 temperature option
DES - for the DEPOLOX
®
5 flow block assembly
with optional PT1000 thermocouple
DES - for membrane sensors: free chlorine FCI,
chlorine dioxide (CD7), ozone (OZ7),
total chlorine TC1
pH - pH value
mV - Redox value
R
-
- Fluoride value
mS - Conductivity
mA/V - Input module
When the device is switched on, the menus are initialised
according to the installed sensor modules. Even if the sensor
modules are changed at a later date, the user menus are
automatically initialised when the device is switched on.
Sensor measuring module 1
(MOD 1)
Sensor measuring module 1 is regarded as the main
measurement and therefore has the most controller functions
(ratiocontrol, single feedback close-loop control or compound-
loop-control). No controller output is available for application 1.
Sensor measuring module 2
(MOD 2)
The sensor measuring module 2 has various functions depending
on the application. Single feed forward control or single feedback
closed loop control (application 3), two time switch contacts
(application 4) or it is used to optimise the controller setpoint in
sensor measuring module 1 (application 5).
Module slot 5
(MOD 5)
Module slot 5 can only be equipped with a mA/V sensor measuring
module, which is used to record further process parameters such
as flow rate or external setpoint/dosing factor.
Module slot 6
(MOD 6)
As an option, module slot 6 can be equipped with a four-way mA
output card. Each mA output can be optionally assigned with a
measured value or also with a controller control signal
(Ym feedback / Yout).