Owner/operator
responsibility
It is the responsibility of the owner/operator
to properly use and maintain this
equipment.
The instructions and warnings contained
in this manual shall be read and understood
by the owner/operator prior to operating this
equipment.
It is the owner/operator responsibility to
maintain the legibility of all warning and
instruction labels.
The owner/operator shall retain this
manual for future reference to important
warnings, operating and maintenance
instructions.
Intended Use
Model V340HH electronic air shutoff
assembly is designed to operate exclusively
with Lincoln PMV pumps
The function of the electronic air shutoff
assembly, also known as an overrun con-
troller, is to prevent pump damage, due to
high runaway speeds (excessive number of
pump cycles per minute), if lubrication drum
or tank is emptied.
The overrun controller will shut off the
pump, and signal an alarm if the pump
exceeds its pre-set cycle rate.
Any other use not in accordance with
instruction will result in loss of claims for
warranty and liability.
System Overview
The electronic air shutoff assembly operates
as a pump speed monitor and overrun
controller for instances where pump speed
exceeds preset levels due to low lubricant
levels.
Pump cycles are continuously monitored
by a Programmable Control Board (PCB) for
correct operating cycles. If the pump cycles
exceed PCB settings, a solenoid is activated
which utilizes compressed air to shutoff
pump operation.
Table 1
Specifications
Air pressure
40 to 150 psi
(2.7 to 10.3 bar)
Operating temperature
–40 to +150° F
(
–
40
to
5° C)
.
Power
9 V battery (included in packaging, not installed
in assembly)
Minimum functional voltage
7.2 V
Destructive voltage
14 V
Active current, maximum
350 mA
Range of preset pump speeds:
Minimum
5 cycles/minute
Maximum
75 cycles/minute
Default
75 cycles/minute
Table 2
Controls and indicators
Power on/off switch
Manual switch
Digital Display
Two 2-digit alpha-numeric outputs
Red LED
Blinks to indicate error detected
Green LED
Blinks to indicate pump fuctioning normally
Button A
See manual description
Button B
See manual description
TEST
See manual description
Relay (DIN connector)
Two state relay (normal open/normal closed)
Description
The electronic air shutoff assembly monitors
pump speed as the overrun controller
assembly receives a discharge of
compressed air from the pump with each
pump cycle.
A processor detects air discharges via a
pressure switch. If the CPM (Cycles Per Min-
ute) exceeds a preset number of cycles, a
solenoid is activated which redirects the dis-
charged air, which in turn activates a mech-
anism which interrupts pump operation.
For specifications, refer to
Table 1
.
For a listing of controls and indicators,
refer to
Table 2
.
3
