Spacer Pain

[Kent0]

In case no one else has mentioned it: the spacers for the WBjr are a pain. They should be part of the circuit board assembly so that one needn't juggle seven pieces to attach the WBjr to a shunt.

By the way, the WBjr won't fit on the shunt in a Magnum MPSL panel because the bus bars are in the way.

[boB]

By the way, the WBjr won't fit on the shunt in a Magnum MPSL panel because the bus bars are in the way.

Will take a look at this at least.  Sorry about the spacers.  We looked at implementing those as pressed in
but was also a pain to get done or something like that.  I hear you though.  It's best to pull the shunt
out to install the WB jr. but only has to be done once (hopefully)

[TomW]

I had similar thoughts when I installed mine.

I thought it would be easier to do it in place but that was wrong. It took a lot of contortions and a couple pairs of hemostats to accomplish. If I were to do it again I would remove the shunt and install the WBjr on the bench rather than in the E panel.

I blamed my rather full E-panel for most of it. And my fat fingers for the rest.

Bottom line is you are not alone with this installation  problem.

Tom

[Kent0]

It looks like the WBjr would work in the Magnum MPSL panel with some slightly longer spacers.

[boB]

Oh, I guess I didn't notice it was the  "Magnum MPSL panel" ?   Isn't that Magnum's panel ?   

There is room in a MidNite E-panel for both WB Jr. and their BMK.   

[SolarMusher]

It looks like the WBjr would work in the Magnum MPSL panel with some slightly longer spacers.

Kent,
Talking about the MPSL, I had found it easier to install the WBjr directly into the classic with twisted wire. Works great.
Erik

[brad.midnite]

Are you measuring the Classic battery current with the WbJr? From your description, that's the impression I'm getting. The WbJr is meant to measure battery current. Assuming your loads are tied separately to the battery, at the battery terminals, you wouldn't be measuring load current.

Or perhaps you've got it hooked up normally and I'm just confused.

[SolarMusher]

Are you measuring the Classic battery current with the WbJr? From your description, that's the impression I'm getting. The WbJr is meant to measure battery current. Assuming your loads are tied separately to the battery, at the battery terminals, you wouldn't be measuring load current.

Or perhaps you've got it hooked up normally and I'm just confused.

I mean if you can't fix it on shunt for whatever reason, you just have to connect the two WBjr terminals to a Magnum MPSL shunt with a length of 16-24 inches twisted wires and connectors (use a small length of BMK twisted wires in excess for example), carefully insulate WBjr terminals with tape and place it into a Classic wire compartment, connect purple wire to aux2+ and you're done.
You will be measuring all load currents...
Erik

[zoneblue]

Just for clarity, the shunt in the battery wire reads battery current, which is charge and loads combined, and combined in a fairly unpredictable manner. However is you know the charge current (Icc), then a true load current value is obtainable by subtracting Iwb from Icc.

[dgd]

Just for clarity, the shunt in the battery wire reads battery current, which is charge and loads combined, and combined in a fairly unpredictable manner. However is you know the charge current (Icc), then a true load current value is obtainable by subtracting Iwb from Icc.

Wouldn't it be nice if there was two or more Classics/Kids with Wbjrs that apart from one monitoring battery current another could be monitoring load usage current or some device input current. It would probably need some way in MNGP or local app to identify the measured current and it stats over time.

dgd

[wondras]

Just wanted to say... getting the WBjr attached wasn't *that* bad. I put tape over the screws while I seated the WBjr, then screwed right through the tape to lock it down.

THANK YOU for making it able to coexist with another meter, and even including the right hardware to do it. My trusty old Tri-Metric still makes a great "gas gauge" when it's on the Amp-hour display.