I have a multimeter Keysight 34410A. It was used a little.
It have a problem with switching autorange at funcion Resistance. If I switch range mannulaly 2W (ohms) and set autorange It working correctly.
Problem is: I switch from function ACV or CONT to function 2W, when it have running function ACV min. 5-8 second before.
Multimeter stay at range 1Gohm - like you can see on the picture: "0.00000 GOHM".
All more function is working correctly (switching autoranging). Function Resistance meassure correctly.
I upgrated firmware on the latest version 2.43 yesterday but it doesnt fix it.
I have some older device (34410A) and it doesnt have this problem.
Please for your help. I think that it is a software problem.