Quick Check Sensor & How to Perform Purity Readings

This is a tool to perform verification of the nitrogen content within the sprinkler system. One is provided for every FPS nitrogen generator. The adapter fitting provided is using 3/8 PTC and a supplied 3/8" OD tube to make the connection between the sensor and the APS-2 outlet. 

Steps to use this device:

• Purging the sprinkler, as guided by the APS-2 (label sets purge rate by sprinkler size).
• Turn on the sensor, allow for reading to stabilize. 
• Press Cal to confirm sensor reading of 79.1% N2.  
• If your sensor diplays "Err" on the panel, please reach out to support.
• After calibration, connect tube to APS-2 outlet (note the REVERSE thread bushing), and verify N2 purity reading. This reading will take some time to stabilize. Allow a few minutes to purge the tube between the APS and the sensor. 
• Industry guidelines have validated 98% to be a target nitrogen purity.

Photos below show the basic connection for this device. If we can follow up and assist in any way, please contact our support line at 910-415-1880 or email at [e-mail]