6.6 Functions
Refer to the "Hierarchy of Operating Modes, Functions and Fault Statuses"
for the order of the various operating modes, functions and fault statuses.
The following functions can be selected using the
‘Settings’
menu:
The pump can also be operated in a calibrated state in all operating
modes if it is to meter extremely precisely. This can be useful with very vis‐
cous feed chemicals but less so with feed chemicals with a similar consis‐
tency to water. Calibration is retained over the entire stroke rate range and
over a stroke length range from 0 - 100%.
This facilitates the switch-over to a fixed adjustable capacity / stroke rate in
the
‘menu’
via the "External control" terminal.
This permits simple bleeding - without the need for an additional bleed
valve. The pump works at maximum stroke rate based on the selected
signal in order to transport gas bubbles out of the liquid end.
The following functions are available as standard:
It monitors the flow after every single stroke, if a dosing monitor is con‐
nected and if
‘Fast’
is set under
‘Settings
è
Metering
è
Discharge stroke’
or
‘DFMa’
(for the DulcoFlow
®
). The number of
defective strokes, after which the pump is switched off, can be set in the
‘Settings’
menu.
Information about the liquid level in the dosing tank is reported to the
pump. A two-stage level switch has to be fitted for this purpose, which is
connected to the "Level switch" terminal.
The pump can be remotely stopped via the "External Control" terminal.
The pump can be stopped without disconnecting it from the mains/power
supply by pressing the
[STOP/START]
key.
Priming can be triggered by pressing
[Priming]
.
6.7 Relay (Options)
The pump has several connecting options available:
The relay can close a connected power circuit (e.g. for an alarm horn) in
the event of warnings or fault messages (e.g.
‘Warning level’
).
The relay can be retrofitted through the slot in the front of the pump - refer
to the installation instructions for "Retrofitting relays".
This combined relay can generate a contact with each stroke via its pacing
relay in addition to functioning as a fault indicating relay.
The relay can be retrofitted through the slot in the front of the pump.
"Calibrate" function
"Auxiliary capacity" / "Auxiliary frequency"
function
"Bleed " function
"Flow" function
"Level switch" function
"Pause" function
"Stop" function
"Priming" function
"Fault indicating relay" option
"Fault indicating and pacing relay" option
Functional Description
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