Introduction; Functions; Functional Principle - ProMinent gamma G/4b Operating Instructions Manual

Page 8 of 88 pages
Introduction/Functions
1

Introduction

ProMinent ® gamma/4b are microprocessor-controlled, solenoid-driven
diaphragm metering pumps capable of dialogue for metering fluids.
Sophisticated mechanics, state-of-the art control technology, easy uni-
form operation with user guidance in plain language, maximum operational
safety thanks to diagnosis of external error sources too, almost unlimited
adaption possibilities to process automation systems, self-monitoring of
the metering capacity and high metering safety in the capacity range of
0,2 to 23 l/h at a maximum counter pressure of 16 to 1,5 bar.
2

Functions

2.1

Functional principle

Gamma/4b metering pumps predominantly consist of
a pump drive
with enclosure, stroke solenoid and electronic microprocessor control
and a liquid end
with liquid end, suction and pressure connection, pump diaphragm and
intermediate disk.
The feeding procedure takes place in batches. The stroke length is max.
1.25 mm.
For every pulse which comes from the electronics a magnetic field builds
up in the field coil and a moveable mounted pressure piece is attracted.
In doing so the pump diaphragm displaces the medium in the liquid end
by means of a pressure valve, and the valve on the suction side closes.
After the switch-on pulse is terminated the magnetic field de-energises,
the pressure piece from the stroke solenoid is reset by the recuperating
spring and the diaphragm returns to the initial position. The pressure side
is closed. In this way the medium is sucked into the liquid end (suction
stroke).
The capacity per stroke can be preselected via the stroke length adjustment
knob (3).
The metering pumps can be retrofitted to suit the customer's specific
needs (options).
Version 2.0