1
2
3
Keypad and
display
Fig.
PS membrane keypad
Item
Description
Display
Key for acknowledgment of fault
indications and changing
programming screens
Key for triggering additional
lubrication cycle and for changing
programming values
Fig.
Fig.
Fig.
NOTE
EP
will briefly appear after display test.
If
EP
remains on after display test, this
indicates remote lube push-button is in
closed position or keypad push-button
is defective.
Test display of
membrane keypad
Test display is made when voltage is applied:
all segments and decimal points are
illuminated for seconds.
When power is applied to pump, display
will indicate if pressure switch or pressure
transducer is connected to pump.
Example indicates internal pressure
switch. There are four possibilities:
•
S
– Internal pressure switch
•
T
– Internal pressure transducer
•
TT
– Internal and external pressure
transducer (must be connected)
•
SS
– Internal and external pressure switch
(must be connected)
Fig.
Green segment right, power supply on
Fig.
Green segment left on, V DC pulse on
black wire
Fig.
Green circulating illuminated segment,
lubricating time, pump is running
Operating mode
• Lower right-hand segment indicates
V
going to red wire in conductor
cable (
† Fig.
).
• When there is a V
pulse on black
wire, lower left-hand segment is on
(
† Fig.
).
• During lubricating time of pump,
circulating illuminated segment appears
in display window of membrane keypad
(
† Fig.
).
• If power supply is interrupted during
lubricating time, operating time will
start at beginning after switching
power on again.
Segment
Segment