502-3000 Series Ztron
TM
Point Level Control
Operation
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SECTION 3
OPERATION
This section describes the operating switches of the Ztron
level control. Remove the dome lid and use a small screw-
driver to set the operating controls.
3.1 Setpoint
Control
There is a single operating point adjustment used to control
the level at which the relay operates. See Figure 3-1.
NOTE
This adjustment is a 35-turn potentiometer and
does not have a mechanical stop. A small click
can be heard when the adjustment has been
turned fully in either direction.
• Turning the setpoint adjustment clockwise raises the level
at which the relay operates.
• Turning the setpoint counterclockwise lowers the level at
which the relay operates.
• The LED (on) indicates that the relay is energized.
Figure 3-1
Ztron Operating Controls and LED
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High level failsafe when shipped unless specified otherwise when ordered.
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