Trumeter APM User Manual

Operating Specification
Measurement Range
Voltage (V)
L-L: 10 - 600VAC
L-N: 10 -300VAC
Current (I) 0–5A (CT only)
Power (W/VA/VAr)
0-999,999MW
Dependant on CT ratio
Frequency 45 – 65 Hz
Measurement Accuracy of full scale
Voltage (V) 1%
Current (I) 1%
Frequency 1%
THD 5%
Power (W/VA/Var) 1%
CAUTION: Risk of Danger
Read complete instructions prior to installation and
operation of the unit
CAUTION: Risk of electric shock
APM
POWER METER
Before installation, read the Safety
Warnings overleaf.
Intended Use: The APM has been specifically designed for engineers requiring an effective way to monitor and
display data. The APM accepts a range of electrical inputs (depending on the model) and displays the data on its
integrated multi-format display. The APM has been designed for industrial use only, by installation into electrical
cabinets or display panels.
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Trumeter APM Specifications

General

Display Type	LCD
Supply Voltage	12-24 VDC
Operating Temperature	-10 °C
Dimensions	96 mm
Protection	IP65
Display	LCD

Summary

Operating Specification

Measurement Range

Details the voltage, current, power, and frequency measurement ranges for the APM power meter.

Measurement Accuracy

Specifies the accuracy of full-scale measurements for voltage, current, frequency, THD, and power.

Modbus and Digital Output Wiring

Modbus Connections

Illustrates the wiring diagram for Modbus communication connections.

Digital Output Connections

Shows the wiring connections for the digital outputs of the APM meter.

Analog and Single Phase Line Power Wiring

Analog Output Connections

Details the wiring for the 4-20mA analog output functionality.

Single Phase Power Meter Connections - Line Power

Provides the wiring diagram for single-phase power meter setup with line power.

Single Phase Local Power and Split Phase Line Power Wiring

Single Phase Power Meter Connections - Local Power

Illustrates the wiring for single-phase meters using local power supply.

Split Phase Power Meter Connections - Line Power

Shows the wiring for split-phase power meter setup with line power.

Split Phase Local Power and Three Phase Line Power Wiring

Split Phase Power Meter Connections - Local Power

Details the wiring for split-phase meters using local power supply.

Three Phase and Neutral Power Meter Connections - Line Power

Provides wiring diagram for three-phase meters with neutral and line power.

Three Phase Local Power Wiring Configurations

Three Phase (No Neutral) Power Meter Connections - Local Power

Illustrates wiring for three-phase meters (no neutral) with local power.

Three Phase Power Meter Connections with PT and CT - Local Power

Shows wiring for three-phase meters using PT and CT with local power.

Safety Warnings and Precautions

Installation Safety Guidelines

Covers essential safety instructions for installing the APM power meter.

Voltage Measurement Safety

Highlights specific safety requirements for voltage measurements and protection.

Maintenance Safety

Provides safety instructions for cleaning, inspection, and maintenance of the unit.

Technical Specifications

Environment and Power Supply

Lists environmental operating conditions and power supply details for the APM.

Display and Output Specifications

Details display characteristics, open collector, and analog output specifications.

Connections and Physical Dimensions

Covers connection types, wire specifications, and panel cutout dimensions.

Control Outputs and System Features

Control Outputs Overview

Explains the concept of control outputs and isolation barriers in the APM.

Unit Size and Panel Cutout

Provides dimensions and cutout details for panel mounting the APM.

Front Panel Button Functions

Describes the functions of the front panel buttons for parameter navigation and scrolling.

Software Configuration

Notes the requirement for software to configure setpoints and outputs.