51-638 Echotel Model 338 Two-Wire Ultrasonic Transmitter
26
The linearization table must start off with a value being
assigned to zero level in the vessel or primary flow element.
This zero level is assigned to data pair point 01 as "L:
000.0" and "r: xxxx" filled in with the volume, open
channel flow, or level value corresponding to the zero
level value.
The table must be terminated either by completed all
32 data pair points, or if the table contains less than 32
points, the table must be closed by a zero level value. For
example, a 16 point linearization table would have data
pair point 16 as "L: 000.0." After data pair point 01, the
338 will ignore any data in the linearization table after rec-
ognizing an "L" level value of 000.0. An error code will be
displayed if the above format is not followed when enter-
ing values into the linearization table.
1.6.7 Information Parameters
Parameters P60 through P75 are used for viewing unit
operating conditions, and transmitter diagnostics.
The display format for P60 – P63 varies depending on
how long the unit has been operating. The table below
shows the display format:
NOTE: P62 and P63 are not used with the Model 338 transmitter.
Data pair point
Left column "L"
Right column "r"
01:
L: 000.0
r: xxxx
02:
L: xxxx
r: xxxx
:
:
:
31:
L: xxxx
r: xxxx
32:
L: xxxx
r: xxxx
Parameter
Units
Description
P60
Hours
Total operating hours of unit
P61
Hours
Elapsed time since unit was last powered-up
Operating hours
Display format
0 to 999.9 hours
xxx.x
1000 to 9999 hours
xxxx
Over 9999 hours
X.XX:E (meaning x.xx 10
e
)
.
.
.
