19
Measurement Applications
BF
Back Flow Condition: Visible only when DP variable
displayed.
Z
Zero Flow Condition: Visible only when Flow Rate displayed
.
H
Hold:
Displayed when PCCU32 is in
Calibration Mode
and
has a measurement application in
Hold
mode.
A
Alarm Condition:
Need to view alarm. You may need to
compare application limits to current values to determine
where the alarm condition is present.
A
D
A to D Failure:
Displayed if A to D Converter’s Differential
Pressure, Absolute Static Pressure or temperature readings
exceed maximum counts or are less than minimum counts.
The Display Does Not Scroll As Expected
When power is first applied, the unit should quickly go through startup
and begin cycling through the pre-programmed display items. If the
display does not scroll after startup and/or looks similar to the following:
(Part numbers are for example only)
2100204 Boot/Loader PROM
2100809-002 (COPYRIGHT)
Disconnect the main power and then re-connect it. You should see
something similar to:
Verifying Flash
XXXXX
Checksum = XXXX
Verify Passed
or
COLD BOOT
Flash 2100826-003
X Series Flow Computer
2100826-003 (COPYRIGHT)
If the display still doesn’t scroll, try disconnecting the power and re-
connecting it again. If still no success, do the following:
With PCCU32, connect to the unit and establish communications such as
Connect To Totalflow
,
Entry Mode
, etc. Go into
Terminal Mode
and type
“
0.0.0=COLD
” (Do not enter quotes). The unit should go through a
Cold
Start
procedure and begin scrolling. If this does not succeed, call the
number on the back of this guide and talk to a customer service
representative.
