Digital Voltmeter Ammeter 30V 10A Red and Blue

£4.96 inc VAT

Availability: 5 in stock (can be backordered)

Brand: SparkFun
Part Number: SPX-18374
Barcode: 5055421003616
SKU: PPSPX-18374 Categories: , , , ,
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While a DMM is great for a quick check, a panel-mount current and voltmeter is handy when you need to constantly monitor a system. Battery-backed systems can be quickly diagnosed by checking the overall system voltage; run times can be calculated based on the instantaneous current consumption rates. For all those times and more, it’s just super handy to have a meter available.

This digital combination DC current/voltmeter measures up to 30V and 10A using approximately 15mA quiescent current. All units come pre-calibrated but can be further calibrated once installed using a small trim pot on the backside of the device.

The wiring diagram shows a normal hookup. The thicker 2-pin wiring harness is for the ammeter and is normally wired into the current return path to the battery or ground. The thinner 3-pin wiring harness is for the voltmeter. The black wire on the 3-pin harness is internally connected to the ammeter and can be left NC (not connected) or to ground. The Red wire of the ammeter should be attached to the system and the Black wire of the ammeter should be connected to ground otherwise the system will work fine, but the meter will display 0.00 as it cannot display negative values.

Digital Voltmeter Ammeter powered on

Digital Voltmeter Ammeter Features:

  • Max Current: 10A
  • Max Voltage: 30V
  • Accuracy:
    • Current: ±1%
    • Voltage: ±0.1%
  • Quiescent: 15mA avg

Volt Meter Dimensions:

  • Bevel: 48 x 29 x 3mm
  • Base: 19 x 44.5 x 25.7mm
  • Cutout: 46 x 27mm

Digital Voltmeter Ammeter Dimensions

Connecting a Digital Voltmeter Ammeter to an Arduino:

Connecting a Digital Voltmeter Ammeter to an Arduino

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