The "Automatic bleed" option is used for controlled bleeding of the liquid
end, if the pump has the "Automatic bleed" option. This option can be ret‐
rofitted through the slot in the front of the pump and conversion of the
dosing head.
There are two versions:
n Version with only 1 relay – to control the electric bleed valve in the
dosing head.
n Version with only 2 relays – one relay to control the electric bleed
valve in the dosing head and one relay free for other uses.
The current output I signal indicates the pump's actual calculated metering
volume. The relay can be retrofitted through the slot in the front of the
pump.
The option also always includes a fault indicating relay or a pacing relay.
6.8
LED Displays
LED display Colour lit briefly goes out flashes
Fault indicator red A fault message is
pending
- undefined operating
status
Warning indicator yellow A warning message is
pending
- -
Operating indicator green The pump is ready for
operation
At each stroke Stroke rate below 30
strokes / min
6.9 Hierarchy of Operating Modes, Functions and Fault Statuses
The different operating modes, functions and fault statuses have a dif‐
ferent effect on whether and how the pump reacts.
The following list shows the order:
1. - Stop
2. - Priming
3. - Error, Pause, Level
4. - Auxiliary capacity / Auxiliary frequency
5. - Manual, Analogue, Contact, Batch
Comments:
re 1 - "Stop" stops everything.
re 2 - "Priming" can take place in any mode of the pump (providing it is
functioning).
re 3 - "Error", "Pause" and "Level" stop everything apart from "Priming".
re 4 - The "Auxiliary capacity" and/or "Auxiliary frequency" always has
priority over the capacity / stroke rate specified by an operating
mode listed under 5.
"Automatic bleed" option
"mA output" option
Fault indicator (red)
Functional Description
24
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