CT Meter
A CT amp meter for measuring AC current with an external CT
The APM CT Meter is an CT amp meter for measuring AC current in conjunction with an external CT. It’s used for applications including motor control, heating control and industrial power supplies.
Benefits include:
- Designed for use with an external current transformer
- Monitors AC currents up to 10,000A with a CT
- 0.5% accuracy
- 20 point non-linearization scaling (for non-linear sensors)
- 10 alarm setpoints & configurable digital output delay
- Remote monitoring with Trumeter Cloud and APM Gateway
See our Shunt ammeter for applications measuring DC current from 0-1,000mV with 0.1% accuracy >
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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 | 0.5% |
| Certifications | CE, cUL, IP65, NEMA Type 4 & 12 (UL50), ROHS, UKCA, UL |
Part Numbers
APM-CT-APO – positive LCD, with outputs
APM-CT-ANO – negative LCD, with outputs
024569-01 APM Evaluation Kit
By Request: Modbus Connectivity
APM-CT-APS – positive LCD, with Modbus
APM-CT-ANS – negative LCD, with Modbus
APM-CT-ANO – negative LCD, with outputs
024569-01 APM Evaluation Kit
By Request: Modbus Connectivity
APM-CT-APS – positive LCD, with Modbus
APM-CT-ANS – negative LCD, with Modbus
Why Choose the APM CT Meter
The APM CT Meter is an ammeter designed for measuring AC current in conjunction with an external CT. It measures AC currents from 1 – 10,000A with 0.5% accuracy. Alternative meters for specific applications include:
- APM Amp Meter: auto-detects AC or DC currents up to 5A with 1% 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.
Unique, Easy-to-Read Display
The APM CT Meter’s display is easy to read in any enviroment, combining the best of digital and analog CT amp meters.
- Adjustable Brightness: Change the backlight brightness to the optimal level for an operator’s environment.
- Two Contrast Options: Choose between the positive display for bright sunlight, or the high-contrast negative display for indoors.
- 40-Segment Curved Bar Graph: Give operators an immediate visual indication of parameters.
- Large Readout: The APM CT meter features four 12mm [0.47″] digits for clear and accurate readings.
- Wide Viewing Angle: Operators can easily read the meter from a range of positions.
User Configurable Digital Ammeter
The APM CT 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.
- 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 CT 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 CT Meter with Modbus RTU for further communications.
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