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 oper‐
ating modes if it is to meter extremely precisely. Calibration should
take place at the operating point and be retained over the entire
stroke rate range and over a stroke length range of 0 - 100%.
This facilitates the switch-over to a fixed dosing rate / stroke rate
adjustable in the
‘menu’
via the "External control" terminal.
It permits the pump to pump the gas bubbles out of the liquid end
even without a vent valve (solenoid valve) – depending on the back
pressure.
This permits a simple timer program to be set up without the need
for an additional timer module.
The following functions are available as standard:
It monitors whether a stroke has led to a pressure surge if a
metering monitor is connected 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. It is possible to
connect a suction lance with continuous level measurement to
pumps from 2019 onwards.
The pump can be remotely stopped via the "External control" ter‐
minal.
The pump can be stopped without disconnecting it from the mains/
power supply by pressing
[STOP/START]
.
Priming can be triggered by pressing
[Priming]
.
6.7 Relays (options)
The pump has several connecting options available:
"Calibrate" function
"Auxiliary dosing rate" / "Auxiliary fre‐
quency" function
"Degassing" function
"Timer" function
"Flow monitor" function
"Level switch" function
"Pause" function
"Stop" function
"Priming" function
Functional description
26
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