11/8/2023 0 Comments Rv battery monitor remote displayFor example, a 12 V battery system with an inverter over 800 watts could exceed this, and the 500A/50mV shunt should be used. If you will be measuring current with the meter that is greater than 70 Amps (charging or discharging) then the 100A/100mV shunt is too small (it will overheat), and you should use the 500A/50mV shunt. There are two things to consider when deciding which to use: Which shunt should I use with the TriMetric or PentaMetric?įor medium and larger systems most people use the 500A/50mV shunt. For 48V systems it is less expensive than the TM-2020 because it does not require an extra 48 volt adapter. It is about typically about $15 more than the TM-2020. It is easier to view and enter programmed parameters. ![]() ![]() The newer TM-2025 includes better lightning protection. (For the technically knowledgeable only): It has a serial data output of all the “real time” data-which could be used to access data for other control or output in, for example OEM applications. The TM-2025 has a “simplified” level of operation suitable for most users, but can be configured for more flexibility (and complexity) where occasionally required. The TM-2025 can also monitor the voltage only of a second battery, such as a starting battery, or possibly also the input voltage of a solar array (if less than 100 volts.) This also provides lightning protection for the TM-2020.
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