CiDRA SONARtrac PW VF-100 - Manual (Page 263)

20838-01 Rev 09 Page J-4
System Faults (page 3):
Item
No
PROBLEM
POSSIBLE
CAUSE DIAGNOSTIC
METHOD DIAGNOSTIC
RESULT
COMMENTS
6
Screen is
light or dark
in color
Incorrect screen
contrast setting
Check screen setting in
‘DISPLAY /
CONTRAST in
CUSTOMIZE menu.
Normal setting is 170
No – the contrast setting
is not 170
Adjust contrast setting up or down as
necessary. If problem persists contact
Customer Support.
Yes – contrast is set to
170
Try adjusting contrast. If this does not work
contact Customer Support.
7
The 4 –20mA
input on plant
data system
does not
work
Incorrect wiring
Verify 4-20mA is wired
to proper connector
terminals in the
transmitter (internal or
external power)
No – system is not
connected to
appropriate terminals
Reconnect wires; refer to section 8 of
Transmitter Installation Manual
yes See below
Verify ‘POWER SEL’
on ‘4 -20mA CH1’ (or 2)
in OUTPUT CONFIG
menu (internal or
external) is set to
correspond with the
wiring option above
No – incorrect ‘Power
Sel’ option.
Correct output option
Yes See below
Broken lead
between
transmitter and
plant data system
or faulty 4-20mA
supply
Verify 4-20mA output
on transmitter and at
data system
Select ‘4-20mA TEST’
under the
DIAGNOSTIC menu to
output discrete 4 to 20
mA signal in 1mA
increments.
Yes, output from
transmitter and input to
plant system
Wiring is good
No signal at plant data
system
Suspect wiring problem
No signal from
transmitter
Suspect faulty 4-20mA output. Acquire
Snapshot, Upload to secure Website, and
contact Customer Support.