Instructions / Assembly

Operation
19
4.6 Dry Contact Connection Information
The UVMax Controller is supplied with a Dry Contact Connection which allows connection to a remote device such as a
Solenoid Valve or remote alarm indicator when a major alarm occurs with the UV system.
4.6.1 Alarm Descriptions
The Dry Contact Output will inform you on the following Major Alarms:
1. Low UV Failure
2. Controller Failure
3. Lamp Failure
4. UV Sensor Failure
Figure 7 Dry Contact Connections
Dry Contact Connection Logic Chart
Output Connection
UV System Running Normally
(No Major Alarms)
UV System Is In a Major Alarm or No Power
is Connected to the UV System
Normally Open Contact (NO)
The Electrical path between these contacts are closed The Electrical path between these contacts are open
Common (COM)
Normally Closed Contact (NC)
The Electrical path between these contacts are open The Electrical path between these contacts are closed
Common (COM)
Normally Open (NO)
Common (COM)
Normally Closed (NC)