SFC
Functions
4.
71
4.5.2.1
Single feed forward with process measurement
This operating mode controls the quantity-proportional dosing of
disinfectants. The single feed forward with process measurement
is only supported with sensor measuring modules with the Process
Control option.
A typical application is simple flow-controlled potable water
chlorination, as shown in the following figure.
Picture 11 Process measurement with single feed forward.
Required module configuration:
• MOD1
-
To record the measured value
Input signals:
• Module 1 measured value recording
• Flow rate measurement (0/4 – 20mA) scalable
• second control variable is possible via sensor measuring
module
• internal or external dosing factor (0/4 – 20 mA)
The following controller outputs are possible:
• Dosing pump
• Pulse pump
• Positioner with feedback 1kOhm/5kOhm/0 –1 V/mA signal
• mA analog output
How the ratio
control works
The flow rate is recorded and the dosing capacity adjusted
proportionally to the flow rate using the flow rate sensor with linear
mA/V output signal.
On the settings for the flow rate signal see menu „Inputs/Outputs“
- “Flow Wq“.
D o s i n g
m g / l
0 , 0 0
1 . 0 0
0 . 4 3
0 , 6 5
1 2 : 3 5
M e a s . 1
M O D E
C A L
M E N U
D I
I
D I
I I
E S C
S e n s o r d
+ T e m p .
f l o w r a t e
S e n s o r
Q
1 x m A o u t p u t
2 x a l a r m r e l a y
2 x a l a r m / d o s i n g o u t p u t
f l o w r a t e
m A
f l o w r a t e
Содержание WALLACE & TIERNAN SFC
Страница 1: ...WALLACE TIERNAN MEASURING AND CONTROL SYSTEM SFC from version V 3 08 INSTRUCTION MANUAL...
Страница 2: ...2 WT 050 590 000 DE IM 0719 SFC Please note Original instruction manual...
Страница 40: ...40 WT 050 590 000 DE IM 0719 Description SFC 3...
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Страница 121: ...SFC Installation 5 121 Top hat rail assembly...
Страница 122: ...122 WT 050 590 000 DE IM 0719 Installation SFC 5 Wall mounting assembly...
Страница 123: ...SFC Installation 5 123 Top hat rail assembly...
Страница 124: ...124 WT 050 590 000 DE IM 0719 Installation SFC 5 Wall mounting assembly...
Страница 125: ...SFC Installation 5 125 Control cabinet installation assembly...
Страница 126: ...126 WT 050 590 000 DE IM 0719 Installation SFC 5 Control cabinet installation assembly...
Страница 127: ...SFC Installation 5 127 Installation of the front panel on the control cabinet...
Страница 128: ...128 WT 050 590 000 DE IM 0719 Installation SFC 5 Installation of the front panel on the control cabinet...
Страница 145: ...SFC Installation 5 145 Example 2 W2T505525 W3T171924 W2T505525 Only operate with sample water inlet...
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Страница 218: ...218 WT 050 590 000 DE IM 0719 Operation SFC 6...
Страница 232: ...232 WT 050 590 000 DE IM 0719 Maintenance SFC 7...
Страница 249: ...SFC Complete Units Retrofit Kits and Spare Parts 8 249 Drawing of DEPOLOX 5 pressurized version W3T170032 W3T170032...
Страница 253: ...SFC Complete Units Retrofit Kits and Spare Parts 8 253 VariaSens drawing non pressurized version W3T158742 W3T158742...
Страница 257: ...SFC Complete Units Retrofit Kits and Spare Parts 8 257 VariaSens drawing pressurized version W3T158756 W3T158756...
Страница 263: ...SFC Complete Units Retrofit Kits and Spare Parts 8 263 Drawing of DEPOLOX Pool pressurized version W3T158599 W3T158599...
Страница 266: ...266 WT 050 590 000 DE IM 0719 Complete Units Retrofit Kits and Spare Parts SFC 8...
Страница 273: ...SFC Declarations and certificates 10 273 10 Declarations and certificates 10 1 Declaration of Conformity...
Страница 274: ...274 WT 050 590 000 DE IM 0719 Declarations and certificates SFC 10...
Страница 275: ...SFC Declarations and certificates 10 275 10 2 Certificate of Compliance...
Страница 276: ...276 WT 050 590 000 DE IM 0719 Declarations and certificates SFC 10...
Страница 284: ...284 WT 050 590 000 DE IM 0719 Settings Table SFC 11...