D E S C R I P T I O N

contact ultrasonic transmitter that performs liquid level,

volume, and open channel flow measurement. Model

355 Transmitters feature a powerful 60 kHz ultrasonic

transducer and advanced digital signal processing to

reliably measure out to a 20 feet (6 m) maximum range.

T h e

M o d e l

3 5 5

p r o v i d e s

u n s u r p a s s e d

e a s e

o f

c o n f i g u r a t i o n

w i t h

e i t h e r

t h e

m e n u - d r i v e n

4-push-button, 2-line

complete configuration to be performed via the local

user interface, or remotely with the extra capability of

capturing echo wave forms, and viewing trend data,

diagnostic conditions, and all transmitter configuration

parameters.

The integral mount electronics are housed in either a

h o u s i n g . T h e i n t e l l i g e n t e l e c t r o n i c s a n a l y z e t h e

u l t r a s o n i c

e c h o

p r o f i l e ,

a p p l y

t e m p e r a t u r e

compensation, reject echoes from false targets, and then

processes the true echo from the liquid surface. This

results in an extremely reliable measurement even

when applications difficulties like turbulence and false

echoes exist.

T h e 6 0 k H z u l t r a s o n i c t r a n s d u c e r i s o f f e r e d i n

in harsh environments. These powerful transducers

feature a 10

distance to maximize measurement capabilities in a

wide variety of applications.

A P P L I C A T I O N S

•

Chemical storage tanks

•

Vessels with highly viscous media

•

Paint, ink and solvent tanks

•

Industrial wastewater processing

•

Volume in batch and day tanks

•

Open channel flow weirs and flumes

F E A T U R E S

•

Two-wire, loop-powered transmitter for level,

volume and open channel flow measurement

•

Maximum range of 20 feet (6 meters)

•

PACTware PC program using HART Communications

for remote configuration and troubleshooting

•

Menu-driven 4-push-button, 2-line

× 16-character

LCD user interface

•

Temperature compensated echo rejection profile

identifies true echo from liquid surface

•

Two 7-digit flow totalizers, one resettable, and one

non-resettable

•

Common tank shapes and 20-point custom table for

fast and accurate volume configuration

•

60 kHz transducer with 10

(250 mm) blocking distance

•

Dynamic baseline noise compensation provides reliable

performance in the presence of electromagnetic noise

•

Generic Discharge Flow Equation and 53 flume/weir

primary elements for open channel flow applications

Echotel

Non-Contact Ultrasonic

Two-Wire Transmitter

for Level, Volume, or

Open Channel Flow

Cast aluminum housing with

Kynar Flex

Lexan

polypropylene transducer