Watt meter help

littleharbor2littleharbor2 Solar Expert Posts: 1,639 ✭✭✭✭
Does anybody else have one of these in use. I have 3 of them that have been kicking around for a while. They don't have any instructions and all the overseas venders are of no help. There are a red and black wires for line and load and a small port. I have seen these pictured in a discussion here in the past. Seems the port would accept a modular plug wired to a shunt maybe, but they aren't sold with any such modular plug nor instructions.

2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric, 540 ah @24 volt AGM battery bank. Plenty of Baja Sea of Cortez sunshine.

Comments

  • Raj174Raj174 Solar Expert Posts: 795 ✭✭✭✭
    Found this youtube, it appears to have a 100 amp shunt built in.





    4480W PV, MNE175DR-TR, MN Classic 150, Outback Radian GS4048A, Mate3, 51.2V 360AH nominal LiFePO4, Kohler Pro 5.2E genset.
  • BB.BB. Super Moderators, Administrators Posts: 32,230 admin
    You can read about a similar meter here:

    http://www.rc-electronics-usa.com/electrical-test-equipment.html

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • littleharbor2littleharbor2 Solar Expert Posts: 1,639 ✭✭✭✭
    Thank you both. I will go through the text and video.

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric, 540 ah @24 volt AGM battery bank. Plenty of Baja Sea of Cortez sunshine.

  • dennis461dennis461 Registered Users Posts: 109 ✭✭✭
    edited February 2017 #5
    If it is similar to others, it is not rated for 100 AMPs continuous.
    http://www.rc-cars-planes.com/docs/wu100v2_user_manual.pdf
    Camden County, NJ, USA
    19 SW285 panels
    SE5000 inverter
    grid tied
  • BB.BB. Super Moderators, Administrators Posts: 32,230 admin
    I would suggest that most of these types of devices are way over spec'ed... 100 Amps for a second? Probably closer to 15-20 amps max continuous (from the typical wiring size).

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • littleharbor2littleharbor2 Solar Expert Posts: 1,639 ✭✭✭✭
    I made the connection between CC, (source) and Battery (load) trying to measure charging of my battery and the unit wouldn't even light up. Maybe this is a bad unit.
     At least I have found out the port is for aux. power when measuring small voltage sources.

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric, 540 ah @24 volt AGM battery bank. Plenty of Baja Sea of Cortez sunshine.

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