Initial Calibration help needed

[Bstinger]

Sorry, I don't know how to do a screen shot with XP. Here is the best I can do:

We haven't touched the bench in 2 weeks. I connect our laptop, bring up the flow bench software and do not touch a motor. I start the software and the and depression and CFM counters begin the do their thing. Depression starts at 0.0 and ends at .05 the CFM starts around 7 and slowly climbs to 38.52. I have not started a motor. If I stop and start the software again the depression will end about the same place and CFM will increment to 38.62.

If I then stop the software and Show Raw Values and see:
avg
Byte count Ch 1 40 46.8

Byte count Ch 2 320 319.25

Still no motors have been run in this session, On the configuration screen:

Calibration Offset Average
Ch 1 .001085 0 50

Ch 2 .000495 0 75

Ch 3 .001085 65 100

Sample rate is set to 100

Disc Coef is currently 0.5345

Let me know if we need to send you anything else.

[Bstinger]

I forgot to mention that we are testing at flows maxing in the 140 -150 CFM range and our plate inside the box is currently a 2.88 orifice diameter.

[Brucepts]

Bstinger did you get the PM I sent you the other day?