100
Communication setup
8.4.2 Alarm relays programming
Alarms can be programmed to activate based on certain conditions (low battery, low
memory, etc.). When an alarm is tripped, an action is initiated (report via modem, dial a
pager, or set a relay). There are two types of alarms:
• Trouble Alarms
• Set Point Alarms
8.4.2.1 Trouble alarms
Trouble Alarms initiate an action when a trouble condition occurs. For example, a relay
may close when the memory is full. For more information on trouble alarms, refer to
Troubleshooting and Error Messages on page 145.
1. From the Main Menu, select
SETUP, ADVANCED OPTIONS, ALARMS.
2. Select one of the trouble conditions.
3. Select an action to occur when the alarm is activated. The list below shows each
Trouble Condition. For causes and solutions, refer to Appendix C on page 145..
Figure 32 Single relay wiring inside the relay junction box
Trouble Condition
• Low Main Battery • Memory Battery
• Low Slate Memory • Slate Memory Full
• Modem Failure • Missed Sample
• Purge Failure • Jammed Distributor
• RS485 Timed Out
Alarm Actions
• Set Relay #1 • Set Relay #2
• Set Relay #3 • Set Relay #4
• Report Via Modem
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
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