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Shunt Meter

An shunt amp meter for measuring DC current with an external shunt

The APM Shunt Meter is a shunt amp meter for measuring DC current in conjunction with an external shunt for applications including marine, leisure and material handling.

Benefits include:

  • Designed for use with an external shunts on low side applications
  • Works with shunts up to 1000mV
  • High resolution 0-1V DC input
  • Measures to 0.1% accuracy of the signal or 0.5mV (whichever is greater)
  • Remote monitoring with Trumeter Cloud and APM Gateway

If you are using a current transformer and measuring AC current, we recommend using our APM CT Meter >

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Specifications

APM Input

0 – 1V DC

PSU

12 – 24V AC/DC

Outputs

Output 1: Digital (open collector) or Analog (4-20mA), Output 2: Digital (open collector) or Analog (4-20mA)

Communication

Modbus RTU Optional

Dimensions

72mm x 72mm x 53mm

Screen Size

57mm x 53mm

Accuracy

0.1%

Certifications

CE, cUL, IP65, NEMA Type 4 & 12 (UL50), ROHS, UKCA, UL

Part Numbers

APM-SHUNT-APO – positive LCD, with outputs
APM-SHUNT-ANO – negative LCD, with outputs

024569-01 – APM Evaluation Kit

Why Choose the APM Shunt Meter

The APM Shunt Meter is an ammeter designed for measuring DC current in conjunction with an external shunt. It measures DC currents from 0 – 1,000mV with 0.1% accuracy. Alternative meters for specific applications include:

  • APM Amp Meter: auto-detects AC or DC currents up to 5A with 1% accuracy
  • APM CT Meter: measures AC currents from 0 – 10,000A with 0.5% accuracy

The unique display combines the instant readability of an analog meter with the precision and functionality of a digital meter. Get quick recognition and precise functionality for the easiest to use and easiest to read panel meter available.

Easy-to-Read Display Technology

The APM Shunt Meter’s display combines the best of both digital and analog amp meters, making it easy to read even in challenging conditions.
  • Two Contrast Options: Order the positive display for bright sunlight, or the high-contrast negative display for indoors.
  • Large Readout: Optimize readability and accuracy with four 12mm [0.47″] digits.
  • Adjustable Brightness: Change the backlight brightness to accommodate changing conditions.
  • Wide Viewing Angle: Operators can read the meter from a range of positions.
  • 40-Segment Curved Bar Graph: Get an immediate visual indication of parameters.

User Configurable Ammeter

The APM Shunt Meter is highly configurable using the APM configuration software. The easy-to-use, free software allows you to tailor the meter to your specific needs.
  • Color Changing Backlight: Configure color and intensity, with flashing or static alerts for specific conditions.
  • Configurable Scale & Range: Adjust offset, gain, linear scale, and min/max range with 20-point non-linear scaling.
  • 10 Independent Alarms: Set conditions and actions to meet your requirements.
  • Messaging Area: Display custom messages and annunciators.
  • 16 Pre-set Configurations: Use position switches on the back of the meter to select pre-set standard configurations without software.
  • Digital Output Delays: Set delays from 0.5 to 120 seconds.

Remote Monitoring

Every APM comes with a free lifetime subscription to Trumeter Cloud so you can remotely monitor the status of your systems. Just add on our plug-and-play APM Gateway to get:

  • Customizable alarm conditions and thresholds for notifications
  • Unlimited email notifications, plus options to add instant text messages
  • Exportable data stored securely in the Cloud

Output & Communications

The APM Shunt Meter comes standard with two outputs to communicate with other systems: 1 digital (open collector) or 1 analog (4-20mA). In certain circumstances we can customize the APM Shunt Meter with Modbus RTU for further communications.

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