wtw TresCon NOx-N, Operating Manual

Page: 30 / 112

Operation NOx-N
2 - 10 ba43110e05 01/2011
2.6 Displaying/changing AutoCleanParameters
You can display or change the parameters of the automatic AutoClean
cleaning procedure.
Dependency
z
An AutoCal procedure automatically follows an AutoClean
procedure.
z
The AutoClean time and AutoCal time are linked (see below).
Note
You can trigger an exceptional AutoClean procedure. Read the section
S
TARTING THE
A
UTO
C
LEAN PROCEDURE
on page 3-3 in this manual for
more information. The operating sequence is described in detail there.
Changing the
AutoClean interval
The factory settings correspond to the values obtained from practical
experience in normal wastewater treatment plants. The AutoClean time
parameter is linked with the AutoCal time and can only be changed in
the
Changing the AutoCal Parameter menu (see section 2.5, page 2-8).
Parameter Values
AutoCal time Reference time at which an AutoClean
procedure should be started. Further
AutoClean procedures are carried out
according to the adjusted AutoClean interval.
The AutoClean time corresponds to the
AutoCal time and cannot be changed here.
AutoClean interval 1, 2, 3, 6, 12, 24 h
1 Measuring mode
Select TresCon NO
X
-N with
68
.
2 Call up the Parameters NOx-N menu with
3
. The main
menu appears on the display.
3 Select the AutoClean menu item with
68
and confirm
with
3
. The prompt Presentation of data/Change appears .
4 Select the Change mode with
68
and confirm with
3
.
5 Enter the PIN digit-by-digit with
68
. Change to the next
digit with
57
and confirm with
3
.
The analyzer switches into the stop mode.