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| Liquid
Level Sensor Model 404 |
Liquid
Level Sensor Model 404 from Time Mark
Description
The Model 404 Liquid Level Sensor
operates in conjunction with a Model 403
Liquid Level Controller for bubbler-type duplex pumping
systems. The Model 404 Liquid Level Sensor contains an air
pressure-to-voltage transducer and requires only a small air
compressor capable of 15 psi to operate the system down to
approximately 35 feet. The Model 404 Liquid Level Sensor’s
four outputs are designed to replace the float switch inputs
to a Model 403, or to be used with a Model
448 Output Relay Board.
A 4-20 ma signal output provides for other control applications.
A 3-digit LED display continuously shows the liquid level
to a tenth of a foot when the Display Control switch is in
the Liquid Level position. Other settings of the switch allow
setting of the liquid level trip points. LED indicators illuminate
as the levels are exceeded. A test
control allows the trip settings to be checked without actually
raising or lower the liquid level.
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Hot Features:
- Digital display
of water depth
- Solid-state outputs
- 4 adjustable trip
points
- 4-20 mA output
- Moisture protected
circuits
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Dimensions
For Liquid Level Sensor Model 404
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