- - UNI-T UT61D: Press the "REL/RS232/USB" button for roughly 1 second.
- - V&A VA18B: Keep the "Hz/DUTY" key pressed while powering on the device.
- - Victor 70C: Press the "REL/RS232" button for roughly 1 second.
- - Victor 86C: Press the "REL/RS232" button for roughly 1 second.
+ - Tenma 72-7750: Briefly press the "RS232C" button.
+ - UNI-T UT60G: Briefly press the "RS232C" button.
+ - UNI-T UT61B/C/D: Press the "REL/RS232/USB" button for roughly 1 second.
+ - UNI-T UT325: Briefly press the "SEND" button (as per manual). However, it
+ appears that in practice you don't have to press the button (at least on
+ some versions of the device), simply connect the device via USB.
+ - V&A VA18B/VA40B: Keep the "Hz/DUTY" key pressed while powering on the DMM.
+ - Victor 70C/86C: Press the "REL/RS232" button for roughly 1 second.
+ - Voltcraft VC-830: Press the "REL/PC" button for roughly 2 seconds.