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| 5
Level Liquid Level Sensor Model 408 |
5 Level
Liquid Level Sensor Model 408 from Time Mark
Description
The Model 408 is a 5-Level Liquid
Level Sensor designed for use with bubbler-type systems. The
Model 408 5-Level Liquid Level Sensor contains an internal
air pressure transducer; the user must provide a small air
compressor capable of supplying a maximum of 15 psi. This
operates the system to a liquid depth of 34.6 feet. The output
of the Model 408 5-Level Liquid Level Sensor connects to the
inputs of the Model 407 3-Pump Liquid Level
Controller (replacing the float switches) or to a Model
448 Output Relay Board. A 4-20 ma signal output is provided
as an input to process controllers or for other control applications.
A 3-digit LED display continuously shows the liquid depth
to 0.1 foot when the display control switch is in the “Liquid
Level” position. Other switch positions allow setting
of the corresponding trip level points. The trip points are
set using coarse and fine adjustment pots, and are shown on
the LED display. Each trip level has an LED indictor which
illuminates as the solid-state output makes. A test feature
allows the trip settings to be checked without actually changing
the liquid level.
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Hot Features:
- Digital display
of water depth in feet
- Solid-state outputs
- 5 adjustable trip
points
- 4-20 mA outputs
- Moisture protected
circuits
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Dimensions
for 5
Level Liquid Level Sensor Model 408
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