Thanks for posting that. My offset was more like 25% (125Hz reading was actually more like 100Hz) - but now aligns with the DSO and DMM. Many thanks!
Does it deadjust again if you use the sweep function (like I described) ?
Mine does and this makes the reliability of the unit more than questionable.
Hey RIchie...well I followed your test...and yes, does the same thing. Even easier...it looks like it's tied to when you save the end freq parameter.
Looks like some overflow error somewhere...but can do this.
1. Set frequency to 60Hz, 3.00v, Sine
2. Press 'sys' button once (to select "save p_on freq")
3. Press blue button to save it
4. Press 'parm' to go back to main menu
5. DMM reads 60Hz
6. Power cycle reads 60Hz
7. Press 'sweep' three times to select "Sweep end freq".
8. Set to "1000.00Hz"
9. Press blue button to save
10.Power cycle
11.DMM now reads 52Hz
12.Power cycle and press "Parm" and left arrow together for two seconds while starting up.
13.Press blue button to save
14.Press "Parm" button
15.DMM now reads 60Hz
Seems to hold this setting as long as you don't save your end sweep frequency.
I think it's reliable enough....but a little on the buggy side. For your info, if you change the end frequency value, you change the error offset in the process!