Pr
o
Minent
®
Page 72
8.6
Measuring Parameter pH
8.6.1
DULCOMETER
®
D1C Measured Variable pH, Setting and Operation
Display
Symbols
The display of the DULCOMETER
®
D1C controller uses the following symbols:
Description Comment
Symbol
Limit value transgression
Symbol
Relay 1, upper
left
Symbol
Relay 1, lower
left
Symbol
Relay 2, upper
right
Symbol
Relay 2, lower
right
Metering pump 1 (alkali)
Symbol
Control
off
left
Symbol
Control
on
left
Metering pump 2 (acid)
Symbol
Control
off
right
Symbol
Control
on
right
Solenoid valve 1 (alkali)
Symbol
Control
off
left
Symbol
Control
on
left
Solenoid valve 2 (acid)
Symbol
Control
off
right
Symbol
Control
on
right
Servomotor
Control, open relay
Control, close relay
Without
control
The
bar
Position feedback
increases from left to right
during
opening.
Stop button pressed
Manual
metering
Fault
pH
BA_DR_002_02_09_GB_Cooling.indd 72
BA_DR_002_02_09_GB_Cooling.indd 72
24.02.2009 11:56:07 Uhr
24.02.2009 11:56:07 Uhr