YSI 5200 - Manual (Page 79)

YSI Incorporated 77 5200 Recirculating System Monitor
7.2 General Alarm
Temperature
Alarm
DO Alarm
pH Alarm
ORP Alarm
Conductivity
Alarm
Auxiliary Alarm
General
Alarm
Alarm Light
or Buzzer
The General Alarm is a Summary alarm that activates a single device, such as a light or buzzer, whenever
any one of the individual parameter alarms is triggered. If the value of a parameter reaches the alarm low
or high point and the Alarm Hold Off time (See Section 9.2.3 Alarm Hold Off) has expired, an alarm
occurs. The status LED turns red showing which system(s) triggered the alarm (see 7.1 Alarm Logic Flow
Charts). The individual parameter alarm relay is activated (if a relay is assigned) and the General Alarm
is activated (if enabled). If the individual parameter alarm is enabled, the buzzer sounds and an alarm
page is sent (if the pager is enabled).
Reset the alarm by pressing the Enter key on the front of the 5200. Pressing the Enter key stops the
audible alarm and cancels any pending pages, but alarm status messages will NOT be cleared until the
5200 no longer senses the alarm condition.
Relay Disabled
Relay Disabled is the default setting for the General Alarm. It prevents the General Alarm from triggering
any relays (Internal or SubNet).
Relay Internal
Select Relay internal to trigger one of the four internal relays in this 5200.
Relay SubNet
Set the General Alarm to trigger an external subnet relay (connected to this 5200 via the RS485 network).