Alarm Hold Off; Relay - YSI MultiDO 5400 User Manual

Sensor alarm values set the acceptable control range. When a sensor reports a value
≤ low alarm value or ≥ high alarm value, the alarm system becomes active after the
alarm hold off period. See Sensor Setup section, Controls and Alarms - 152 for
additional information. If an alarm system is active and alarm relay is enabled, the
alarm relay energizes.
Notes:
-
The Run Screen must be displayed during normal operation. All alarm
functions (5X00 email alarms, energizing of enabled alarm relays, alarm
icons, and buzzer) are suspended in 5X00 menus. Alarm systems are reset
when menus are exited to Run Screen.
- The General Alarm system is disabled during system-wide events such as
service hold and downloader.
- Sensor and Aux alarms must be enabled to trigger the General Alarm.

Alarm Hold Off

Menus → System → General Alarm → Alarm Hold Off→Time Units
General Alarm Hold Off is the length of time the alarm condition must exist before
the General Alarm system becomes active.
Notes:
- To avoid alarms for spurious events set the Alarm Hold Off > than 0.
- Aux system alarms are triggered after the Aux hold off time, and not after the
General Alarm hold off time.
- Low battery alarm has a five (5) second hold off that is not user selectable.

Relay

Menus → System → General Alarm → Relay
The General Alarm relay can be wired and configured to any networked output
NEW
relay. The configured relay energizes when the General Alarm system is active. See
page 86 for explanation of local versus remote instruments.
Configure General Alarm relay
Use AquaManager to configure system inputs and outputs - page "Use AquaManager
to configure Sensor Setup menus" on page 150.
1. Wire relay output device to local instrument, or any networked 5X00
instrument - page 54.
OR
1. Wire relay output device to REM - see IOEM/REM Safety and Instal-
lation guide>Chapter 3>Step 4>Wire REM Relay Outputs.
Configuring the 5X00
YSI 5X00
132
2. Enter General Alarm Menu
Menus → System → General Alarm>General Alarm Menu opens
▲ ▼
3. Use to scroll and highlight submenus.

4. Press to select.
5. Enable and configure Alarm Hold Off and Alarm Hold Off time and
time units. Use AquaManager to configure system inputs and outputs
- page 148.
OR
5. Enter General Alarm Relay Menu>General Alarm Relay menu opens
A. Select Instrument to enter device address menu and configure
instrument whose relay will be used for this instrument's general
alarm output.
Notes:
- Device Address menu displays a generic list of instruments being Local Ma-
chine, Master and Slaves 1-31.
- Device Address menu always display slaves 1-31 regardless of the actual num-
ber of slaves wired to the node network
B. Select Relay to enter Relay menu and configure instrument relay
channel that will be used for this instrument's general alarm output.
Note:
- When Device Address is anything other than Local Machine all relay assign-
ment menus remain generic. This means that regardless of the type of remote
instrument being configured Relays 1- 8 are displayed. This is true for slave
5200A and REM remote devices which only have 4 relays.
Configuring the 5X00
YSI 5X00
133