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Amp Meter

A digital amp meter for measuring direct AC & DC current up to 5A

The APM Amp Meter is a digital amp meter for measuring AC & DC direct current up to 5A to 1% accuracy. For applications including control panels and power supplies.

Benefits include:

  • Auto-detects AC or DC input
  • Measures 5A direct
  • 1% accuracy (with up to 50mA fluctuation)
  • 20 point non-linearization scaling (for non-linear sensors)
  • 10 alarm setpoints & configurable digital output delay
  • 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 >

If you are using a shunt and measuring DC current, we recommend using our APM Shunt Meter >

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Specifications

APM Input

0 – 10,000A via CT, 0 – 5A Direct

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

1.0%

Certifications

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

Part Numbers

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

024569-01 – APM Evaluation Kit

Why Choose the APM Amp Meter

The APM Amp Meter is a versatile ammeter designed for a wide range of current measuring and monitoring applications. It auto-detects AC or DC currents up to 5A with 1% accuracy, making it suitable for various equipment and measurement needs. Alternative meters for specific applications include:

  • APM CT Meter: measures AC currents from 0 – 10,000A with 0.5% accuracy
  • APM Shunt Meter: measures DC currents from 0 – 1,000mV with 0.1% 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 Amp 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.
  • 40-Segment Curved Bar Graph: Get an immediate visual indication of parameters.
  • Large Readout: The APM Amp meter features four 12mm [0.47″] digits for clear and accurate readings.
  • Adjustable Brightness: Change the backlight brightness to suit different environments.
  • Wide Viewing Angle: Operators can read the meter from a range of positions.

User Configurable Digital Ammeter

The APM Amp Meter is highly customizable using the APM configuration software. The easy-to-use, free software allows you to tailor the meter to your specific needs.

  • Color Changing Backlight: Customize color and intensity, with flashing or static alerts for specific conditions. 
  • Customizable Scale & Range: Adjust offset, gain, linear scale, and min/max range with 20-point non-linear scaling.
  • 16 Pre-set Configurations: Use position switches on the back of the meter to select pre-set standard configurations without software.
  • 10 Independent Alarms: Set conditions and actions to meet your requirements.
  • Messaging Area: Display custom messages and annunciators.
  • 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 Amp 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 Amp Meter with Modbus RTU for further communications.

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