Table of Contents
Advertisement
51-638 Echotel Model 338 Two-Wire Ultrasonic Transmitter
2.6.2 Transmitter
Supply voltage
Power consumption
Output signal
Diagnostic alarm
User Interface:
Keypad
Display
LED status indication
Ambient temperature
LCD module temperature
Enclosure
Cable entry
2.6.3 Transducer
Maximum range
Dead zone
Frequency
Process connection
Process temperature
Process pressure
Ultrasonic beam angle
Temperature compensation
Transducer
12 to 36 VDC
48 to 720 mW
4-20 mA isolated,
600 ohm load
3.6, 22 mA, or Hold
4-button menu-driven data
entry
Removable 6 digit custom
LCD module with dual
function bar graph
Echo strength and power
-22° to +140° F
(-30° to +60° C)
-13° to +140° F
(-25° to +60° C)
Plastic (PBT)
NEMA 6 (IP 67)
Two –
⁄
" NPT and
1
2
Two – PG16
20 feet (6 meters)
10 inches (250 mm)
80 kHz
2 inch NPT
(flanges optionally available)
-22° to +195° F
(-30° to +90° C)
Atmospheric to 44 psi (3 bar)
5° conical
Automatic over the operating
temperature range of the
transducer
Polypropylene NEMA 6P
(IP 68)
These units have been tested to EN 50081-2
and EN 50082-2 and are in compliance with
the EMC Directive 89/336/EEC.
38
Advertisement
Table of Contents
