Nassar IS-6 Manual De Instrucciones página 6

C
L1
C
L2
C
L3
Pressure set point adjustment
The pressure switch has 2 adjusting screws, they adjust
the start pressure (contact 1-2 closes) and stop
pressure (contact 1-2 opens).
Pressure adjustment
screw (stop)
Placa seguro
6mm
Adjust the Pressure screw until the value at RANGE is
set to the pressure you would like the switch to stop
(contact 1-2 opens). The start pressure (contact 1-2
closes) will be given by the value set at RANGE minus
the value at DIFF. Use the Diff screw to adjust this value.
Start Pressure= RANGE- DIFF.
Both the DIFF. and RANGE settings are indicated at the
scale in the front cover:
Range
INTERRUPTOR DE PRESIÓN/PRESSURE CONTROL SWITCH
TIPICAL WIRING DIAGRAM
OL
OL
MOTOR
OL
Diff. adjustment
screw (start)
NO GIRE ESTE TORNILLO
Diff.
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L2
PS
F
1
C = Contactor
F = Fuse 2 A Max.
OL = Overload relay
PS = Pressure switch
Example:
Stop pressure at 60 Psi. (Contact 1-2 opens)
Start pressure at 40 Psi. (Contact 1-2 closes)
Adjust the value at RANGE to 60 Psi. and DIFF to 20 Psi.
60-20=40 Psi.
RANGE
Important Note: Contact 1-2 will always be in the
oposite state as contact 1-4. To reverse the logic of
operation that was just described in this manual, use
terminals 1-4 instead of 1-2.
L3
OL
2
C
20
60
DIFF.
2