YSI 5500D-1 - Manual (Page 101)

YSI 5X00
201
YSI 5X00
200
Issue possible cause possible solution
DO-galvanic or polaro-
graphic inaccurate values
DO sensor wires are termi-
nated incorrectly
see Wire DO sensors -page
50..
probe assembly ground wire
or temp sensor wires (if not
in use) are causing interfer-
ence)
cut back unused wires to
cable sheathing to avoid
shorting.
“over/under” sensor
readings
bad sensor
bad membrane
clean sensor, replace
membrane, calibrate sensor,
test sensor outside system
stream in solution of
known value,
replace sensor
no sensor value on
screen
sensor not enabled See Sensor Setup - page
137..
display setting configuration
set for multiple Run Screens
See Display Setting - page
115.
“check probe” message at
sensor calibration
improper placement of probe
assembly, incorrect sensor
wire connection(s), improper
placement of 5X00, bad sen-
sor, and/or bad membrane
See Location Considerations
Probe Assembly - page 33
See Wire sensors - page
50.
See Location Consider-
ations 5X00 - page 27.
clean sensor, calibrate,
test sensor outside system
stream in solution of
known value, replace mem-
brane and/or replace sensor
if necessary
Analog aux value is
overlapping to adjoining
sensor window
1X1 & 2X2 display format
setting cannot display values
over 7 digits in aux sensor
window
Adjust aux display format
to lower resolution i.e. from
0.00 format to 0 format.
See also Notes: Display
Screen Limitations - page
116..
Troubleshooting
Sensor Troubleshooting continued Relay (Outputs) Troubleshooting
- Disable control, alarm, and timer relays when troubleshooting relay out-
puts.
- Verify 5X00 wiring and configuration.
Issue possible cause possible solution
relay does not energize incorrect sensor configura-
tion
See Sensor Set up - page
137.
relay not enabled
incorrect timer configuration See Timers - page 159..
30 second delay at power up
and/or sensor configuration
change
30 seconds delay - see page
228..
peripheral device is wired
incorrectly
See Wire Relays - page 56.
The device is incorrectly
wired to NO or NC termi-
nal strip ports..
relays are not enabled for
control/alarm/timer system
Verify menu configuration
(relay enable) for control/
alarm/timer system.
See sensor system set up -
page 137.
See timer system enable
-page 159.
temp (high) does not de-
energize when set point
value is read
sensor is configured for
timed control
Verify setpoint and control
configuration values - page
151.
Email Alarm Troubleshooting
Issue possible cause possible solution
no 5X00 email alarm
message received
5X00 display is not at Run
Screen - all alarming is sus-
pended when in menus
exit to run screen to reset
alarm email alarm system
Troubleshooting