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YB27VA DC 8-100V Digital Voltmeter Ammeter Volt Amp Meter LED Voltage Current Tester Milliammeter 9.99mA 999mA 20A 50A 100A 500A

Attention:

1，9.99mA, 99.9mA, 999mA, 2A, 5A, 10A, 20A direct test, the shunt is built in.

2，More than 10A(except for 20A direct test) ,you must use a shunt to work,even 0.1A, or it will be burnt.

3，More than 10A(except for 20A direct test) ,the shunt is not built in,you need to buy it separately.

(1)If you have a shunt , please note your shunt specification (standard is 75mV, if no notes, all according to 75mV delivery)

(2)If you don't have a shunt, please order the corresponding shunt, we will not notice at the time of shipment.

Technical Parameters:

Supply voltage：DC8 ~ 100V

Operating current：<20mA

Display mode: 0.28 "LED, single color or double color:(red-red): Both voltage and current are red color

(red-blue): Voltage is red,current is blue.

Dimension:48*29*21mm

Mounting dimension: 45.5*26.5 mm

Measurement rate: ≥ 500mS / time

Measurement accuracy: 1% (± 2 digits)

Features:

The wide power supply range, with reverse polarity protection.

Display voltage and current on the screen at the same time.
Use the SMT technology, so consistency is very good
The decimal point automatically shifted
With a voltage calibration potentiometer, current calibration potentiometer, you can calibrate by yourself. The tolarance is absolutely exist.
Good anti-interference ability, showing the refresh speed.
With three wires,connection is convenient,used to monitor the battery voltage,can be also used for other products.

Connection Method:

This meter is equipped with three wires, please find professionals in strict accordance with the following connection diagram, if any questions please feel free to contact customer service.

Testing side: three-wire terminals

COM(black wire): Test common terminal（The COM is commond negative of voltmeter and ammeter）
V +(red wire): Test positive voltage input
A +(yellow wire): Test positive current input. It can only be connected the load negative and load power negative, as shown below:

Suitable for "more than 10A",must need a shunt:

Suitable for "10A or less and 20A direct test",no need a shunt:

Working conditions:

Operating temperature: -10 ~ +50 ℃
Working humidity: 10 ~ 80% (no condensation)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct exposure