GE UPS Monitoring

Has anyone managed to get GE UPS's monitored by OpManager? I've followed the guide at http://forums.manageengine.com/forumHome.do?forumGroupId=49000000002007&forumTopicId=49000002635835& , but I still get N/A or data not available in the graphs.

I've attached the ups_monitors.xml file in case I've missed something fundamental!