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Deon Ramey

Bogart Engineering PM-5000-U PentaMetric Input Unit

Written July 12, 2009


I purchaesed the PentaMetric input unit and the computer interface unit. I am using the USB port. The computer inerface unit uses the RS232 port. This required me to buy an RS232 to USB converter at Radio Shack. Since I am using the USB port, I down loaded the PMcomm77 software. It worked but there was a glitch in it. It cycled between port open and idle to receiving dataevery few sconds. Every minute or so it would lock up. I would get an error message and given a choice between continue receiving data or stopping to fix the problem. I picked continue. It would work for while and then freeze up again. I decided to download the PMComm829 software. This works great. No more freeze ups! This software is for either USB or Ethernet connection. I am using the relay output to control 2 relays to switch back and forth between batteries and ac grid. When the batteries are fully charged, the relays are activated which connects the loads to the inverter and batteries. When the batteries get down to 60% charge, the relays deactivate, which hands over the loads to the ac grid. Then after the solar panels have completly recharged the batteries, the loads are again handed over the the batteries and inverter. This cycle continues on. I am using the transfere relay in the inverter and an ac grid activated relay also. I am still learning how to set the values in the input unit. For some reason, the computer interface does not come in an encloser. I bought a plastic and metal box at Radio Shack to mount the circuit board in. Some day, I might buy the output unit so I will have the alarm and notice sounds. The computer interface does not have this. Overall, I am pleased with this product and would recommend to to anyone who wants more capability in thier battery monitor.

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