English (GB)
23
If the input value in operation mode 4-20 mA falls
below 2 mA, an alarm is displayed and the pump
stops. A cable break or signal transmitter error has
occurred. The "Cable break" symbol is displayed in
the "Signal/error display" area of the display.
Fig. 16
Analog scaling
Fig. 17
Analog operation mode
6.5
SlowMode
When the "
SlowMode
" function is enabled, the
pump slows down the suction stroke. The function is
enabled in the "
Setup
>
SlowMode
" menu and is
used to prevent cavitation in the following cases:
•
for dosing media with a higher viscosity
•
for degassing dosing media
•
for long suction lines
•
for large suction lift.
In the "
Setup
>
SlowMode
" menu, the speed of the
suction stroke can be reduced to 50 % or 25 %.
Fig. 18
SlowMode
menu
6.6
Key lock
The key lock is set in the "
Setup
>
Key lock
"
menu by entering a four-digit code. It protects the
pump by preventing changes to settings. Two levels
of key lock can be selected:
It is still possible to navigate in the "
Alarm
" and "
Info
"
main menu and reset alarms.
6.6.1 Temporary deactivation
If the "
Key lock
" function is activated but settings
need to be modified, the keys can be unlocked
temporarily by entering the deactivation code. If the
code is not entered within 10 seconds, the display
automatically switches to the "
Operation
" main
menu. The key lock remains active.
6.6.2 Deactivation
The key lock can be deactivated in the "
Setup
>
Key
lock
" menu via the "
Off
" menu point. The key lock is
deactivated after the general code "2583" or a
pre-defined custom code has been entered.
6.7 Display Setup
Use the following settings in the "
Setup
>
Display
"
menu to adjust the display properties:
•
Units (metric/US)
•
Display contrast
•
Additional display.
6.7.1 Units
Metric units (litres/millilitres/bar) or US units
(US gallons/PSI) can be selected. According to the
operation mode and menu, the following units of
measurement are displayed:
TM0
4
1
1
20
20
10
TM
04 1
1
27
31
1
7
Caution
Enabling the "
SlowMode
" function reduces
the maximum dosing flow of the pump to
the set percentage value!
TM
04 1
1
53
1
11
0
0
Q [%]
0 - 20 mA
4 - 20 mA
[mA]
4
20
8
12
16
100
80
0
60
40
20
Operation
5.15
l/h
0-20mA
17.14 mA
Off
SlowMode (50% max.)
SlowMode (25% max.)
❑
❑
SlowMode
Level
Description
Settings
All settings can only be changed by
entering the lock code.
The [Start/stop] key and the [100 %]
key are not locked.
Se
keys
The [Start/stop] key and the [100 %]
key and all settings are locked.
Operation
mode/function
Metric units US units
Manual control
ml/h or l/h
gph
Pulse control
ml/
ml/
0/4-20 mA
Analog control
ml/h or l/h
gph
Calibration
ml
ml
Volume counter
l
gal
