General Overview
The RTT Finishing Solutions Filter Monitor Pro is designed to give operators and managers visual indication when filter maintenance is required. It includes 3 user adjustable set points for each sensor (filter stage) being monitoring. The pressure readings are gathered by an external pressure transmitter (sensor) that is installed near the filters. The pressure transmitter uses poly tubing to connect to pressure ports mounted in the wall of the filter chamber. When the fan is turned on, a pressure differential is created from the front side of the filter to the back side of the filter. As the filter loads with overspray, the pressure differential increases. The transmitter converts the pressure differential into a zero to ten volt DC signal that is sent back to the Filter Monitor Pro which is then converted into a numerical value and displayed on the touch screen.
The pressure that the sensor is designed to read is measured in Inches of Water Column shown as “w.c.. This is a very low pressure range as there are approximately 28 inches of water column in one P.S.I. which means the sensor is reading well below 1 P.S.I.
When the pressure across the filter increases, the value and gauge displayed on the touch screen increase. When the pressure exceeds the “Warning” set point, the screen and the stack light at the top of the controller will turn yellow alerting the operator that the filters will need to be replaced soon. The operator must acknowledge this warning in order to clear the screen. The acknowledgement is recorded in the Operation History Section. When the pressure exceeds the “Replacement Required” set point, the screen and the stack light at the top of the controller will turn red alerting the operator that the filters are in need of replacement. This page also requires the operator to acknowledge the notification and is recorded in the Operation History Section. If the filters are not replaced, and the pressure continues to rise, a final “Shutdown” warning will occur which will de-energize the included dry contact interlock. The interlock can be used to turn off spray equipment, turn on alarm sirens, shut down conveyors, or many other functions that may be required per application.
The Filter Monitor Pro includes a built in ethernet port that can be connected to an active internet connection allowing email and text notifications to be sent when the “Replace Soon” and “Replacement Required” alerts are triggered.
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