Bacharach 3015-4286 Manual De Usuario

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10 
Instruction 3015-4286 
Connecting External Alarms 
Overview 
The AGMSZ includes four SPDT relays whose contacts are rated 3 A at 240 VAC. These relays are used for 
the connection of external alarm devices that are activated when the relay is energized. The relays are 
factory assigned to energize under the following conditions: 
 
Relay #1 
Leak 
Alarm Point 100 ppm 
 
Relay #2 
Spill 
Alarm Point 300 ppm 
 
Relay #3 
Evacuate 
Alarm Point 500 ppm 
 
Relay #4 
Fault 
System Fault Event 
Note that the alarm points of relays #1, #2, and #3 are set using the monitor’s LEAKLVLSPILLLVL
and EVACLVL function screens (Page 16). 
 
Connection 
Use any of the service knockouts to gain cable access to the interior of the monitor. Locate the External 
Alarm Relay Connector (Page 8). Secure the leads from the external alarm device and its power source to 
the connector as shown in the diagram below.  
The diagram on Page 11 shows a typical alarm device being connected to Relay 1. Note how power to this 
device is being tapped off the monitor’s AC input. 
 
External Alarm Relay Connector 
 
 
 
 
 
 
 
 
 
Each relay may be connected as normally open (NO), or normally closed (NC). 
The relay contacts are rated 3 A at 250 VAC. 
Power for the external alarm devices may be supplied from an external power source, or from  
the monitor’s AC input terminals.