14
A
CCESSORY
L
IQUID
N
ITROGEN
L
EVEL
M
ONITOR
O
PERATION
R4
R2
SW1
C3
J4
J6
U7
U8
R3
C2
PC509X2 REV C
1
1
1
For normally closed contact, place jumper here.
For normally open contact, place jumper here.
Remote Alarm wires connect here
(Note polarity.)
-
+
1
2
3
6
5
4
Load
J3-2
J3-1
U4
V
Load Voltage
(AC, DC)
L
Remote Alarm Connections Schematic
The position of J4 and J6 indicate
whether the relay is normally open
or normally closed.
Figure 3
Figure 2
Figure 1
