Process Monitoring, Reporting the Location of an Activated Emergency Shower
At each emergency shower location, a FlexPower Node with 4 discrete inputs and 4 discrete outputs and DX81 Battery Supply Module was installed. Because the installation was a Class I, Division 2 environment, the DX80...C housings were used and installed inside an appropriate enclosure.
When the shower is activated by a mechanical whisker switch, the FlexPower Node sends a signal to a Gateway and controller to notify security that a shower was engaged at a specific location. This enables a security team to more quickly find the specific shower and determine the extent of the emergency.
Some emergency showers are activated by a pressure sensitive floor mat instead of a switch. Either sensing device can be wired as an input on the Class I, Division 2 FlexPower Node. The FlexPower Node operation allows the radio device and sensor to be powered by 10 to 30V dc or a battery supply module. In this application, a single battery supply module will provide power to the sensor and radio device for up to five years.