3-wire Voltmeter with 0.36 inch LED Display - 0V to 30V DC

SKU: TH0890
$99.00
$6.99 Out of Stock
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A mini 3-wire voltmeter ranging from 0 to 30V DC with a 0.36 inch LED display. The 3-wire configuration has a red, black and white (or yellow) wires.

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1 $6.99
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5-9 $6.64
10-49 $6.29
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Overview

A mini 3-wire voltmeter measures a DC (Direct Current) voltage ranging from 0 to 30V DC and has a 0.36 inch LED display. The 3-wire configuration has a red, black and white (or yellow) wires. It is a commonly used configuration for measuring electrical potential difference across two points in a circuit which gives better accuracy compared to 2-wire configuration.

This additional wire enables the meter to compensate for voltage drops across the connecting wires, resulting in more precise readings.

Specification

Model DSN-DVM-368L-3
Measuring Range 0 - 30V DC
Power Supply Red: 4.5 - 30V DC
Green: 4.7 - 30V DC
Blue: 5.0 - 30V DC
Tolerance ±1%
Input Impedance >100K
Current Red: < 23mA
Green: < 18mA
Blue: < 13mA
Refresh Rate 300 milliseconds
Display 3 Digit, 0.36 inch LED
Display Color Red, Green or Blue
Wire Length 15cm
Dimensions 23mm x 15mm x 10mm
Mounting Holes 2x 2.8mm

Connection & Pinout

Connection and pinout for 3-wire voltmeter

Red Wire Positive Terminal
Connects to the positive terminal of the power supply.
Black Wire Negative Terminal
Connects to the negative terminal of the power supply.
White / Yellow Wire Common or Sense Terminal
The third wire, which allows the voltmeter to measure the actual voltage at the point of interest in the circuit, bypassing any voltage drop across the wires due to resistance.

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