Panel Meters

Part Number	Description / PDF	Quantity
APM-CT-ANO Trumeter	CURR TRANS METER NEG LCD WITH OU	13
APM-VOLT-ANO Trumeter	VOLT METER NEG LCD WITH OUTPUTS	8
APM-M2-APO Trumeter	PROCESS METER POS LCD W O/P 90-2	32
APM-AMP-ANN Trumeter	AMMETER AMP NEG LCD	13
APM-SHUNT-ANO Trumeter	SHUNT METER NEG LCD WITH OUTPUTS	8
APM-POWER-APO Trumeter	POWER METER POSITIVE WITH OUTPUT	0
APM-VOLT-APN Trumeter	VOLT METER POS LCD	200
APM-CT-APO Trumeter	CT METER POS LCD WITH OUTPUTS	5
APM-TEMP-APO Trumeter	APM TEMPERATURE METER POSITIVE	17
APM-FREQ-APN Trumeter	FREQ METER POS LCD	8
APM-PWR-APO Trumeter	POWER METER NEGATIVE WITH OUTPUT	15
APM-MAX-M21-PU-4R Trumeter	VOLT AMP FREQUENCY POWER	4
APM-AMP-APO Trumeter	AMMETER POS LCD WITH OUTPUTS	66
APM-MAX-M23-PU-4R Trumeter	SHUNT RESISTOR FOR PROCESS TRUME	4
APM-FREQ-ANN Trumeter	FREQ METER NEG LCD	7
APM-PROC-APO Trumeter	PROCESS POS LCD WITH OUTPUTS	7
APM-PROC-ANO Trumeter	PROCESS NEG LCD WITH OUTPUTS	40
APM-FREQ-ANO Trumeter	FREQ METER NEG LCD WITH OUTPUTS	7
APM-M2-ANO Trumeter	PROCESS METER NEG LCD W O/P 90-2	30
APM-VOLT-ANN Trumeter	VOLT METER NEG LCD	11

Panel Meters

1. Overview

Panel meters are precision measurement and display devices integrated into industrial control systems to monitor electrical or physical parameters. They serve as critical interfaces for real-time data visualization in automation environments, enabling operators to maintain process efficiency and system integrity. Their importance lies in enhancing operational accuracy, reducing human error, and supporting predictive maintenance strategies.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Analog Panel Meters	Mechanical pointer-based display, simple design	Voltage/current monitoring in basic machinery
Digital Panel Meters	LCD/LED numerical display, high accuracy	Production line parameter tracking
Multifunction Meters	Multi-parameter measurement (V, A, kW, etc.)	Energy management systems
Smart Panel Meters	Communication protocols (Modbus, CAN), data logging	Industrial IoT systems
Temperature Panel Meters	Thermocouple/RTD input support	Chemical reactor temperature control

3. Structure and Components

Typical panel meters consist of: - Enclosure: Flame-retardant plastic/metal housing with IP65+ protection - Display Unit: 3.5-7 digit LED/LCD with backlighting - I/O Interface: Screw terminals/quick-connect for sensor integration - Power Module: 12-24V DC or 110/220V AC supply - Control Elements: Membrane keypad or rotary encoder

Technical composition includes precision ADC converters, microprocessor cores (ARM/DSP), signal conditioning circuits, and optional wireless modules.

4. Key Technical Specifications

Parameter	Description
Measurement Range	Determines applicable voltage/current thresholds (e.g., 0-1000V)
Accuracy Class	Defined as 0.05% to 1% full-scale deviation
Resolution	Minimum detectable change (e.g., 1 V, 0.1 C)
Response Time	0.1s-2s critical for dynamic process monitoring
Input Types	Support for analog/digital signals, thermocouples
Communication Protocols	RS485, Modbus RTU, Profibus compatibility
Environmental Rating	-20 C to +70 C operating temperature, IP67

5. Application Fields

Major industry applications:

Manufacturing: CNC machine monitoring
Energy: Power distribution system analytics
Chemical Processing: Reactor pressure/temperature control
Transportation: Electric vehicle battery management
Building Automation: HVAC system optimization

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Siemens	7ME6 Synchrocompact	Modbus TCP support, 0.1% accuracy
Schneider Electric	Powertight PMC	Multi-parameter energy measurement
Honeywell	5130X Temperature Controller	0.05 C precision, PID control
Omron	K3HB Process Meter	Dual-display, IP66 protection
Yokogawa	WT5000	High-precision power analysis

7. Selection Recommendations

Key selection criteria:

Determine parameter types and measurement ranges
Evaluate environmental conditions (temperature, vibration)
Specify communication requirements (fieldbus compatibility)
Assess display readability needs (digit size, color coding)
Consider calibration certification requirements
Verify mounting dimensions (DIN 43700 standard compliance)

8. Industry Trends

Emerging developments include: - AI-powered anomaly detection algorithms - Wireless IoT integration (5G/LoRaWAN) - Energy harvesting self-powered designs - Edge computing capabilities - Enhanced cybersecurity features (IEC 62443 compliance) - Predictive maintenance through machine learning