Burkert Type 8620 - Manual (Page 135)

mxCONTROL Type 8620
Page 135
Parameter (CodeLevel: Operator)
Parameter Abbrevia-
tion
(menu) Value range Default values
(after successful download of Cfg-
File)
Channel 1
Pre-bleed limit
(in combination with
COND_CONTROL and
COND_PI)
PB 0 … 99999
(The unit is defined by the
unit of the process value of
the linked conductivity
module) Scal- + ((Scal+ - Scal-)/2)
Centre of the input range (Scal- …
Scal+) of the assigned conductivity
module, e.g.:
Scal- = 0 µS, Xo = 1000 µS
PB default value = 500 µS
Note! If the feed water quality is unknown, the maximum process value less 50 µS should be chosen
as Pre-bleed limit value. (e.g.: PB = max. PV - 50 µS)
Pre-bleed limit
(only in combination with
COND_CONTROL_RATIO
and COND_PI_RATIO) PB ratio -99999 ... 1.0
(The unit is defined by the
unit of the process value of
the linked conductivity
module) -50.0
Max. duration of the pre-
bleed phase (*) +TmPB 1 ... 180 min 180 min
Delay after Main dose Tm1 0 … 180 min 1 min
Delay after Post dose Tm2 0 … 180 min 1 min
Module output during
dosage CMD on 0 … 100 %
0 … 100 % (if binary output) 100 %
Dosing Events
Selection of the day for parameterizing dosing events of this day
by selection of week (week 1 or 2) first,
then by selection of week day (Monday, Tuesday, …, Sunday)
Enable/Disable all dosing
events of a day
Dosing
Events 1-8 enable/disable disable
Dosing Event 1 Dos 1
Dosing Event 2 Dos 2
… …
Dosing Event 8 Dos 8
Dosing Event X
Enable/Disable dosing
Event X
enable/disable disable
Start Time Start 00:00 … 23:59 00:00
Dosing Time (Duration) Tdose 1 … 180 min 1 min
Channel 2
All parameters of channel 1 are also available for channel 2 if the channel mode ChMode is set to dual.
(*) will be only displayed if the parameter “TmPB” is configured as “Yes” in the menu „Configuration“
The following figure shows the steps for the parameterizing of the dosing timer.