Maynuo M97 series

Maynuo M97

Status	supported
Source code	maynuo-m97
Channels	1
Voltage/current (CH1)	various
Connectivity	RS232
Features	DC electronic load only
Website	maynuo.com

The Maynuo M97 series are 1 channel programmable DC electronic loads with serial connectivity (Modbus RTU).

The OEM for the load (both used by Maynuo and Atten) appears to be XiTRON which got acquired by Vitrec. The Maynuo manual sometimes leaks references to the Xitron XT98xx device.

Devices

Maynuo	Atten OEM	Max Current	Max Voltage	Max Power	Comments
M9710		30 A	150 V	150 W
M9711	ATZ9711	30 A	150 V	150 W
M9811		30 A	150 V	200 W
M9712	ATZ9712	30 A	150 V	300 W
M9812		30 A	150 V	300 W
M9712B	ATZ9712B	15 A	500 V	300 W
M9812B		15 A	500 V	300 W
M9712B30		30 A	500 V	300 W
M9712C	ATZ9712C	60 A	150 V	300 W
M9713	ATZ9713	120 A	150 V	600 W
M9713B	ATZ9713B	30 A	500 V	600 W
M9714	ATZ9714	240 A	150 V	1200 W
M9714B	ATZ9714B	60 A	500 V	1200 W
M9715		240 A	150 V	1800 W
M9715B		120 A	500 V	1800 W
M9716		240 A	150 V	2400 W
M9716B		120 A	500 V	2400 W
M9716E		480 A	150 V	3000 W
M9717		240 A	150 V	3600 W
M9717B		120 A	500 V	3600 W
M9717C		480 A	150 V	3600 W
M9718		240 A	150 V	6000 W
M9718B		120 A	500 V	6000 W
M9718D		240 A	500 V	6000 W
M9718E		120 A	600 V	6000 W
M9718F		480 A	150 V	6000 W
M9834		500 A	150 V	10000 W
M9835		500 A	150 V	15000 W
M9835B		240 A	500 V	15000 W
M9836		500 A	150 V	20000 W
M9836B		240 A	500 V	20000 W
M9837		500 A	150 V	35000 W
M9837B		240 A	500 V	35000 W
M9838		500 A	150 V	50000 W
M9838B		240 A	500 V	50000 W
M9839		500 A	150 V	100000 W
M9839B		240 A	500 V	100000 W
M9840		1500 A	150 V	200000 W
M9840B		500 A	500 V	200000 W

The devices linked above are supported. The other devices might work, but are untested. If you have one of the unsupported devices and can test it, please contact Aurel.

Resources

• Xitron XT9812 product page
• Gerry Sweeney's unboxing/teardown video for an M9711 device, including the theory of operation, and a discussion on the need for an isolated communications cable