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6
Functional description
6.1 Device
6.2 Dos. capacity
6.3 Operating modes
"Manual" operating mode
"Contact" operating mode
"Batch" operating mode
"Analog" operating mode
6.4 Functions
An electric motor drives a rotor. Rollers are fitted to the ends of the rotors,
which press the pump hose against the inner curvature of the dosing
head. The peristaltic pump operates by the rollers driving the feed chem‐
ical through the pump hose. The feed chemical is primed by the pump
hose automatically returning to its initial position.
The rotor always stops at angle values, which are safe for operation,
which is why the rotor can "run on" for up to 1/2 revolution.
The capacity that has been set regulates the pump itself.
The minimum volume that can be metered corresponds to 1 revolution of
the rotor.
'Batch' 'operating mode' , the minimum volume that can be metered
In
corresponds to 6 revolutions of the rotor.
Operating modes are selected via the "Operating modes" menu.
Refer to the "Hierarchy of Operating Modes, Functions and Fault Statuses"
for the order of the various operating modes, functions and fault statuses.
'Manual' operating mode permits you to operate the pump manually.
This operating mode provides the option of controlling the pump externally
by means of potential-free contacts (e.g. by means of a contact water
meter). "Pulse Control" can be used to preselect the metering volume in
'Settings' menu.
the
This operating mode provides the option of working with large metering
volumes. Metering can be triggered either by pressing the
by a pulse received via the "External control" terminal via a contact or a
semiconductor switching element. It is possible to pre-select a metering
volume (batch) and a metering time using the
menu.
The capacity is controlled using an analogue current signal via the
"External control" terminal. Processing of the current signal can be prese‐
lected using the control unit.
Refer to the "Hierarchy of Operating Modes, Functions and Fault Statuses"
for the order of the various operating modes, functions and fault statuses.
Functional description
[Clickwheel] or
[Clickwheel] in the 'Settings'
23
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