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502-302
Series Z-tron
X
2.5 Relay Connections
LOW LEVEL FAIL SAFE
LEVEL BELOW
GND
TRIP POINT
L1
L2
LEVEL ABOVE
GND
TRIP POINT
L1
L2
_________________________________________________________________________________
TM
Level Control
The Z-tron relay has double-pole, double-throw (DPDT)
contacts. The relay serves as a switch and does not provide
the power to operate an annunciator or other equipment.
All relay connections are made to the terminal strip on the
side of the electronic chassis, as shown in Figure 2-7.
Relay Connections (with Power Connected)
ALARM LED
IS OUTALARM LED
7
8
9
IS OUT
3
4
5
ALARM LED
7
8
9
IS LIT
3
4
5
Figure 2-7
Relay Contact Chart
Figure 2-6
HIGH LEVEL FAIL SAFE
LEVEL BELOW
GND
7
TRIP POINT
L1
L2
3
GND
7
LEVEL ABOVE
TRIP POINT
L1
L2
3
7
Installation
ALARM LED
8
9
IS LIT
4
5
8
9
ALARM LED
IS OUT
4
5
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