300 Datasheet, PDF (5/8 Pages) DB Lectro Inc – SCREW TYPE SERIES

NON-CONTACT ULTRASOUND
335 For Liquid Level,
Volume or Open
Channel Flow
With flexible software, advanced signal processing
and a powerful transducer, the Model 335 offers
outstanding measurement performance and value.
Hinged, Dual Compartments
The LCD module compartment houses the
user interface and the lower compartment
houses the wiring terminals. A screw
release allows the LCD compartment
to swing completely clear of the
wiring module.
Plug-In Display Module
The module offers easy set-up and config-
uration of all process parameters via four
push buttons. The custom graphics LCD
displays six-characters and a bar graph of
signal strength or tank level. The module can
be removed to configure other 335 units.
L ^{View of LCD}
module through
housing cover
window
Enlarged view
of LCD module
in working unit
LCD module
removed
335 Electronics
Advanced digital signal processing provides
optimum performance in a variety of process
conditions.
Echotel 335 Transmitter Specifications
Power Supply
85 to 255 VAC
Output Signal
4–20 mA (isolated); 600 Ω load
Fault Detection
Configurable 3 amp SPDT relay,
LED, and 3.6 or 22 mA
Relay
One, 3-amp SPDT
Fail-safe
Software selectable
Ambient Temperature -22° to +140° F (-30° to +60° C)
Display
Removable six-digit LCD module
with dual function bar graph
Keypad
4-button menu-driven data entry
LED Status Indication Echo strength, power, relay LED’s
Compensation
Auto temperature compensation
over transducer operating range
Accuracy
±0.2% of measured distance,
plus 0.05% of the range
Enclosure
Dual compartment cast aluminum
Protection
NEMA 6 (IP 67)
Transducer Specifications
Frequency
50 kHz
Beam Angle
Conical 7°
Max Range
26 feet (8 m)
Dead Zone
14 inches (350 mm)
Process Temp
-22° to +195° F (-30° to +90° C)
Process Pressure Atmospheric to 44 psig (3 bar)
Material
Polypropylene
Protection
NEMA 6P (IP68)
Applications
• Sump, Well, & Tank Level
• Open Channel Flow
• Water & Wastewater Treatment
• Chemical Storage Tanks
• Food & Beverage Containers
• Pulp & Paper Vessels
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