5. Design and function
KFG KFGS KFGL KFGC
5.2.2 Lubricant reservoir
The lubricant reservoir is available in 2 kg, 6 kg,
10 kg, 15 kg and 20 kg sizes. The reservoirs
are made of transparent plastic and have fill
level markings that allow the fill level to be
monitored visually.
The pump fill level can be monitored either via
an integrated rocker switch or by an inductive
fill level switch fitted on the lid.
A grease return can also be attached. A display
and control screen is mounted on the front
side of the KFGS or KFGL design, while the
KFGC design has a display attached. An IrDA
interface is integrated into this, which can op-
tionally be used to program the pump.
5.2.4 KFGS and KFGL control units
Pump units of the KFGS series are equipped
with an IG502-2-I integrated control unit with
a control display. Parameters for interval times
(timer), interval pulses (counter) and pump cycle
times (contact) can be entered through the control
unit.
The KFGL's control unit, model LC502, allows
up to three lubrication zones to be lubricated
independently. Sectional lubrication is available
5.2.3 Fill level monitoring
There is a choice of two fill level switches for
monitoring of the minimum pump fill level. Fill
level control W1 (order code 1) and fill level
control W1G (order code 2) are used with lu-
bricants up to NLGI Grade 2≥ The difference
between the two fill level controls is that fill
level control W1G is equipped with signal
smoothing and a dry (potential-free) contact.
The output signal is confined to the following
indications:
Reservoir full
Reservoir empty
for differing lubricant requirements; the lubri-
cation lines can be controlled and monitored
individually.
5.3 KFG pump units
Pump units of the KFG series are reservoir
pump units without an integrated control unit.
The KFG pump is available in the versions with
grease reservoir and in reservoir capacities
4 kg, 6 kg, 10 kg, 15 kg, and 20 kg.
With the KFG pump unit, the fill level signal
must be processed by a system supplied by the
customer. The pump is available in various
voltage designs.
On pumps for single-line systems, an electrical
pressure relief valve is additionally installed on
the pump housing, which ensures that pres-
sure is relieved as required after the feeding
operation.
Page 53
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