I suspect the monitoring station is in error. It would be a very good idea to get a decent tachometer such as the TECH-TACH TT-20K from [URL=http://www.tinytach.com/design/handheld.php][COLOR=blue][U]Design Technology, Inc.[/U][/COLOR][/url] or a digital multimeter such as a Fluke meter that reads "true RMS" values and can read the frequency of the power coming from the generator.
I read the RPM off the graph of my wireless remote monitoring station.
Has the gas pressure been measured where it goes into the generator? If so, what was the value?
Regarding the LP regulator- I had the propane company come up and he said it had more than enough capacity to handle the addition of the generator. It's adjustable, and they just had to "dial it up"