Product parameters

Supply voltage DC4V-30.0V

Current testing range 0-10A

Voltage measurement range: 0.0V-100V

Voltage error ± 1%

Current error ± 2%

Working current<20MA

Refresh speed is about 620MS per time

Display mode: dual three digit 0.28 "LED digital tube

Display colors: red+red, red+blue. Optional

Lead length 15CM

Dimensions: 48X29X22 MM, length X width X thickness;

Installation hole 46X27MM

Working temperature -10 ° C~65 ° C

Product Function and wiring diagram

Product features:

High precision, high reliability.

It has reverse connection protection and does not burn when connected in reverse.

Directly use without manual calibration.

Instructions:

1. Precautions before use

The power supply voltage of the product must be 4-30V, and the test current range is 0-10A. Please wire according to the diagram.

The dual display meter is powered on normally, the load is disconnected, and the zero point is briefly short circuited. The screen shown in the following figure appears, indicating successful adjustment.

2. Wiring method

The product has two power supply methods: independent power supply and direct power supply. Please note that regardless of the power supply method, the working voltage can only be 4V-30V. The current measuring end cannot be connected in reverse. The "positive pole of current detection" should be connected to the "negative pole of load", the "negative pole of current detection" should be connected to the "negative pole of voltage to be measured", and the "positive pole of load" should be connected to the "positive pole of voltage to be measured". The so-called positive and negative poles of the load refer to the current flowing in as the positive pole of the load and flowing out as the negative pole of the load. Please refer to the following diagram for specific connection methods:

3. Common problems and solutions

(1) Inaccurate current display

If it is a direct or independent power supply and the equipment power supply are grounded, simply disconnect the thin black wire to achieve accuracy.

(2) No display when connected to the power supply

Any AC power that has been rectified must be filtered by an electrolytic capacitor with a capacitance of at least 1000uF before it can be supplied to the meter head.

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