En
gl
is
h (
G
B)
18
7. Operation
7.1 Operating elements
Fig. 12
Operating elements
7.1.1 Capacity adjusting knob
The capacity adjusting knob is used to set the
capacity in percent of the maximum dosing flow of
the pump. Due to the logarithmic increase of the
percent values, even small dosing capacities can be
set accurately.
7.1.2 LEDs (DDE-B)
The LEDs indicate the following operating statuses
and faults:
●
= LED on
❍
= LED flashing
empty table cell = LED off
*
For some alarms the pump tries to restart
periodically. Observe section
T
M
06
73
20
43
16
Pos. Description
Control
variant
B
AR
Status LEDs:
1
An alarm is active. See section
. (red)
●
●
External stop (red)
●
2
Tank level (yellow)
●
3
[Operation mode] key
●
Operation mode LEDs (green):
4
Pulse
●
5
Manual
●
●
6
Analog
●
7
Logarithmic scale
●
●
8
Capacity adjusting knob
●
●
9
[100%] key
●
1
2
3
4
5
6
7
8
9
LED status
Pump status
Description
●
Running
❍
Stop
Capacity
adjusted to 0 %
❍
Standby*
An alarm is
active. See
section
