I have an in-line monitor for CO on my compressor. It is a tee in the line at the fill whip connection going through a flow reducer, then to a flow meter with a bypass check valve venting the additional flow. The back side of the flow meter is plumbed to a CO detector. With the flow meter, I am able to set the 0.5 lpm rate the detector (Sensorcon) is calibrated/designed for.
I have run it in the past, and have been getting 0 for a reading all the time. I have usually hooked it up/turned it on a little into the run time, but this time I had the monitor on earlier. Today, upon start-up, I had a momentary spike to 6 ppm for 15-20 seconds or so, then went to 0, staying there for the duration of the hour run time. I started with the pressure in the system at basically zero inclusive of the filters as it had been sitting for a number of weeks since the last run.
Any ideas what may have happened for that moment?
P.S. - the end of this run was used to take an air sample that has gone out for analysis...
I have run it in the past, and have been getting 0 for a reading all the time. I have usually hooked it up/turned it on a little into the run time, but this time I had the monitor on earlier. Today, upon start-up, I had a momentary spike to 6 ppm for 15-20 seconds or so, then went to 0, staying there for the duration of the hour run time. I started with the pressure in the system at basically zero inclusive of the filters as it had been sitting for a number of weeks since the last run.
Any ideas what may have happened for that moment?
P.S. - the end of this run was used to take an air sample that has gone out for analysis...