Energy Measurement Module EM203 | Bachmann M1 Automation

Bachmann EM203 Ethernet Module

Product Description / Overview

The Bachmann EM203 is a high-precision energy measurement module designed for three-phase power systems. It captures voltage, current, power, frequency, and energy data with 16-bit resolution, providing real-time monitoring and diagnostics. Moreover, the module features galvanic isolation and built-in status LEDs, ensuring safe operation and accurate data acquisition. In addition, its compact design and DIN rail mounting allow easy integration into industrial panels, making it ideal for modern energy management systems. Fully compatible with the Bachmann M1 automation system, the EM203 supports effective energy optimization and system safety across various industries.

Technical Data

System Compatibility
• Bachmann M1 automation system

Measurement Channels
• 3-phase measurement (L1, L2, L3 + Neutral)

Measured Parameters
• Voltage, current, active/reactive power, apparent power, power factor, frequency, energy (kWh)

Voltage Measurement Range
• 57–400 V AC (phase-to-neutral), up to 690 V AC (phase-to-phase with PTs)

Current Measurement Range
• 1 A or 5 A nominal (via CTs), scalable

Accuracy Class
• Class 0.5 (IEC 62053-22)

Sampling Rate
• High-speed sampling for real-time monitoring

Resolution
• 16-bit measurement resolution

Isolation
• Galvanic isolation between measurement inputs and system bus

Diagnostics
• Built-in self-diagnostics, LED indicators for status and faults

Power Consumption
• 5 W

Dimensions
• 130 × 25 × 150 mm

Weight
• 0.35–0.45 kg

Operating Temperature
• −30 °C to +60 °C

Storage Temperature
• −40 °C to +85 °C

Humidity Range
• 5% to 95% RH, non-condensing

Mounting
• DIN rail or rack installation

Certifications
• CE, UL, RoHS

FAQ

Q1: What is the primary function of the EM203 module?
It measures voltage, current, power, frequency, and energy for three-phase systems accurately.

Q2: How does the EM203 ensure safe operation?
It provides galvanic isolation and built-in diagnostics with LED status indicators.

Q3: Can the EM203 be integrated with other Bachmann M1 modules?
Yes, it fully integrates with the M1 automation system for seamless energy monitoring.

Q4: What industries commonly use this module?
Power generation, renewable energy, chemical, water treatment, oil & gas, and manufacturing sectors.

Q5: What is the measurement accuracy of the EM203?
It provides Class 0.5 accuracy according to IEC 62053-22 standards, ensuring precise readings.