The Setting Range - ProMinent gamma G/4b Operating Instructions Manual

"Pause" control
Internal operation "Manual"
External operation "Contact"
Metering monitoring "flow"
Float switch
Page 10 of 88 pages
Functions
2.2.2

The setting range

By means of the universal control cable the pump can be switched on and
off voltage-free. The control function operates according to the zero signal
current: when the contact is open the pump is idle, brown and black wires
are not connected with each other. When the contact is closed the pump
operates, brown and black wires are connected with each other.
The pause control is effective in each of the functions described here
below.
> Detailed description from page 58
The setting of the stroke volume takes place using the stroke length (3).
This can be set from 0 - 100% up to a maximum of 1.25 mm. Accurate
metering is achieved from 30% stroke length.
The stroking rate can be set with the keys (2 or 6) from 120 (180)
to 0 strokes/min. The number is displayed on the display (4).
> Detailed description from page 54 onwards.
The stroke cycle of the gamma pump can also be controlled externally e.g.
via a water meter contact. The connection takes place with a control cable
at the connection socket (12). Each incoming pulse corresponds to one
metering stroke. A max. of 120 (180) strokes/min are possible - there is no
danger of overdriving.
Please note:
The stroking rate set in the internal operation "Manual" is valid for
the external operation "Contact" as max. stroking rate.
> Detailed description from page 55
Gamma metering pumps check their own performance. After the assembly
of an optional metering monitor on the liquid end (19) and activation,
every complete metering stroke is recorded and passed on to the pump
electronics. If the correct metering amount is not present eight times the
pump stops.
> Detailed description from page 58
By attaching the two-stage float switch to the socket (11) the supply of fluid
media is monitored. When a minimum height is reached an early warning
is issued, the pump however continues to operate.
The pump switches off only once the level has dropped another 30 mm.
A fault annunciation relay can be switched as an option.
> Detailed description from page 58
Version 2.0