How can the shunt be connected from the negative side of the battery and the positive side of the motor as instructions indicate?

Btw, the posted answer that the shunt's main terminals can be connected via the engine's negative wires to the battery's negative post can have issues. If the alternator does have an independent negative wire (instead of grounding to the engine directly) then you could put the shunt in series with this negative wire. Do not wire the shunt from the engine itself (i.e. a grounding stud) to the negative post of the battery. If done this way, the heavy starting current (when cranking the engine) would flow through the shunt and that would be a big problem. Stick with wiring the shunt in series with the alternator's positive output wire.

This doesn't come with any instructions. how do i hook it up? how do i attach the shunt?

Well I will tell you how I hooked mine up. PositIve from battery to one side of shunt it does not matter what side and the other side goes to my inverter. Now the two screws on the shunt and the two studs on the back of the meter you need to have two smaller wires of equal lengths and hook up the meter to the shunt. Before you hook up the two little wires zero out your meter that little screw on front of meter turn it slow so the needle points to zero. Now hook up your two small wires. If you hook up wires wrong your needle will go backwards, just reverse them so the needle points to zero. Now my amp meter shows me how many amps I am pulling from my batteries- mike- fridge-exc. Hope it helped you.

Can this be used on a 48 volt battery system?

Yes it can. This meter measures current not volts.

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Baomain DH-670 DC 100A Analog Amp Panel Meter Current Ammeter with 75mV Shunt

Baomain DH-670 DC 100A Analog Amp Panel Meter Current Ammeter with 75mV Shunt

产品编号: 29935574

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细节

Brand
Baomain
Material
Plastic
Item dimensions L x W x H
3.86 x 4.96 x
Item Weight
120 Grams
UPC
711811448553

⚡Measures DC current up to 100A

📏Compact 70x60mm face size

🔧Includes precise 75mV shunt for accuracy

描述

⚡ Stay Current, Stay Ahead – Precision You Can Trust!

ROBUST 100 A CAPACITY - Handles high current loads up to 100A, perfect for demanding electrical setups.
COMPACT SLEEK DESIGN - Slim 3.5cm depth and 70x60mm face fits seamlessly into any control panel.
FINE TUNE YOUR ACCURACY - Integrated dial adjustment button lets you calibrate readings effortlessly.
POWER PRECISION AT A GLANCE - Analog display with clear, easy-to-read scale ensures you never miss a critical reading.
DURABLE BUILD LIGHTWEIGHT FEEL - Weighing just 205g, it’s built to last without adding bulk.

The Baomain DH-670 is a high-precision analog ammeter designed for DC current measurement up to 100A. Featuring a compact 70x60mm panel size and a 75mV shunt for enhanced accuracy, it offers clear readability and fine-tuning capability, making it an essential tool for professional electrical monitoring and control.

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