
MN301450 Rev A
5
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Technology
Step Four
VIBRATION SWITCH (AZ18-113 _ SERIES)
The vibration switch (tuning fork) operates at a nominal frequency of 400 Hz. As the switch becomes immersed
in a liquid or slurry, a corresponding frequency shift occurs. When the measured frequency shift reaches the set
point value, the switch changes state indicating the presence of a liquid or slurry medium. For optimum
performance and proactive maintenance, the sensor automatically adjusts for coating, and if necessary, outputs
a preventative maintenance alarm.
Vibration Switch NPT Version
Vibration Switch G Version
Do not squeeze the forks together. Doing so could damage or break the sensor and void the warranty.
When powering up the AZ13-113_ series, the start-up procedure requires the switch to cycle through a wet
condition for 1/2 second to determine an initial resonance. The relay within the controller will switch between
open and close during this sequence.
LZ12 SPECIFICATIONS
Sensor material:
Ryton® (glass fill)
Viton® cable grommet
Cable jacket mat’l:
PP
Cable type:
5-conductor,
#24
AWG
(shielded)
CONFIGURATIONS
Part Number
Material
(body)
Material
(cable)
Threads
(Inside x outside)
LZ12-1405
Ryton Polypropylene
¾” NPT x ¾” NPT
LZ12-1425
¾” R x ¾” G