Manual

YSI 5X00
129
YSI 5X00
128
- displays at Run Screen when password is enabled.
Power Fail Menu
Menus → System → Power Fail
In the event of AC power failure, an AC version instrument’s power switches to
DC if properly wired. e switch from AC to DC power is automatic and does
not require 5X00 conguration. Enable Power Fail AC Monitor to generate event
when AC power fails and is restored. Because AC powered 5X00s may not reboot
properly aer an AC power failure or AC power surge, it is highly recommended
to use a battery back system when 5X00 is powered primarily by AC power. See
page 196 for DC battery maintenance information.
Disabling the Power Fail System will disable AC power events and disable the General
Alarm in the event of low battery for DC power. Disable Power Fail AC Monitor
when powering 5X00 by a DC power source.
Enable Low Battery Monitor to trigger General Alarm in the event DC voltage is ≤
to low battery trigger. e Low Battery Alarm Hold O time is ve (5) seconds and
cannot be user congured. Once the low battery general alarm has been acknowl-
edged by pressing one of the 4 sokeys, it is not reset. See General Alarm - page 124.
1. Verify AC and DC power supplies are properly wired and powered See
wire power - page 46.
Conguring the 5X00
2. Enter Power Fail Alarm menu and submenus
Menus → System → Power Fail
3. Use
▲ ▼
to scroll and highlight submenus.
4.
Press

to select.
5. Enable and congure submenus
6. Press
to save conguration and return to Run Screen.
Notes:
- Press
to view AC power fail events.
-
icon at Run Screen indicates that the 5X00 DC power is ≥ Low Battery
Trigger value with Low Battery Monitor enabled.
-
icon at Run Screen indicates DC voltage ≤ the Low Battery Trigger when
Low Battery Monitor is enabled.
- Low battery alarm is not reset when front panel sokey is pressed.
- AC power fail does not generate a general alarm.
Serial Number
Menus → System → Serial Number
e serial number is displayed at the serial number menu. e serial number is
required when contacting YSI customer service. e serial number is also neces-
sary to congure AquaManager. 5400 instruments begin with “54-”followed by
seven digits. 5500D-01, 5500D-02 and 5500D-04 instruments begin with “55-”
followed by seven digits. Serial numbers are generated at the factory and cannot be
changed by the user.
Service
Menus → System → Service
e Service menu includes submenus to congure and Reset Clean Probe timer,
Conguring the 5X00