Pump with internal pressure
transducer only
Internal pressure transducer is factory
set to close at psi
(240 bar)
.
Internal transducer can be adjusted from
to psi
(96 to 317 bar)
using
keypad on pump. Adjustment is in
psi
(6,9 bar)
increments. Internal
pressure transducer is set to open at
psi
(62 bar)
below point where closed.
After pump starts lubrication cycle, motor
stops when pressure at pump reaches preset
pressure. Pump goes through two holding
periods:
H
and
H
. The following uses
factory setting of psi
(240 bar)
and
opening pressure of psi
(179 bar)
.
Holding time (H)
• Internal pressure transducer must reach
psi
(240 bar)
and stay above
psi
(179 bar)
for consecutive
seconds before going to
H
. If internal
pressure transducer drops below
psi
(179 bar)
during seconds,
pump restarts and runs until internal
pressure transducer reaches
psi
(240 bar)
.
Holding time (H) – lasts for
seconds
• At end of seconds, if internal pressure
transducer is above psi
(179 bar)
pump begins vent cycle.
• If at end of seconds internal pressure
transducer is below psi
(179 bar)
,
pump restarts and runs until internal
pressure transducer reaches
psi
(240 bar)
. When this
happens, vent cycle takes place.
• If at end of seconds internal pressure
transducer is above psi
(179 bar)
,
but during
H
hold time internal
pressure transducer dropped below
psi
(179 bar)
, pump restarts
and pumps for seconds before vent
cycle begins.
Possible faults
•
E
Fault – failure to build pressure at
pump within allotted minutes of
pumping time.
•
E
Fault – failure to vent at pump.
Internal pressure switch has seconds
to open when motor reverses to locate
vent position.
•
E
Fault – failure to vent at pump.
If at end of pause time pressure of
internal pressure transducer has not
dropped below psi
(62 bar)
,
E
fault occurs.
Pump with internal and
external pressure transducer
Internal pressure transducer is factory set
to close at psi
(240 bar)
. Internal
transducer can be adjusted from
to psi
(96 to 317 bar)
using
keypad on controller. Adjustment is in
psi
(6.9 bar)
increments. Internal
pressure transducer is set to open at
psi
(62 bar)
below point where closed.
External pressure transducer is set to
close at psi
(172 bar)
. Opening point of
external pressure transducer is adjustable
from to psi
(14 to 69 bar)
. It is
factory set to open at psi
(62 bar)
.
After pump starts lubrication cycle, motor
stops when pressure at pump reaches preset
pressure of psi
(240 bar)
. Pump can
go through three holding periods:
H
,
H
and
H
.
The following uses factory settings for
P
and
P
.
Holding time (H)
• Internal pressure transducer must reach
psi
(240 bar)
and stay above
psi
(179 bar)
for consecutive
seconds before going to
H
. If internal
pressure transducer drops below
psi
(179 bar)
during seconds,
pump restarts and runs until
internal pressure transducer reaches
psi
(240 bar)
.