General Overview
Model: ES2403

Series: EPRO Compact Monitoring System

Type: 2-Channel Vibration & Speed Monitoring Module (Enhanced Version)

Primary Application: Critical machinery protection for turbines, compressors, and high-speed rotating equipment

Key Technical Parameters
1. Input Specifications
Channels: 2 independent monitoring channels

Sensor Compatibility:

Vibration:

Eddy current probes (5mm/8mm)

Velocity sensors (4–20 mA)

Accelerometers (ICP/IEPE)

Tachometer:

Magnetic pickup (MPU)

Optical encoder (0–30,000 RPM)

Keyphasor® Input: 1x/rev pulse for phase analysis

Measurement Ranges:

Displacement: 0–1000 μm (p-p)

Velocity: 0–50 mm/s (RMS)

Acceleration: 0–20 g (optional)

Frequency Response:

Displacement: 0.3 Hz – 1 kHz

Velocity: 5 Hz – 2 kHz

Tachometer: 0.5 Hz – 20 kHz

2. Output & Communication
Analog Outputs:

2× 4–20 mA (isolated, ±0.1% accuracy)

2× ±5V/±10V (raw vibration signal)

Relay Outputs:

4× SPDT (2 Danger + 2 Warning)

1× OK-to-Start relay

Digital Interfaces:

RS-485 (Modbus RTU)

Ethernet (TCP/IP, optional)

3. Power & Environmental
Power Supply: 18–36 V DC (24V nominal), <4W

Operating Temp: -40°C to +85°C

Housing: Stainless steel, IP65 (front panel)

Mounting: DIN rail or direct bolt-mount

4. Advanced Features
Dynamic Signal Analysis:

Real-time FFT (up to 10,000 lines)

Orbit and Bode plot capability

Condition Monitoring Functions:

Peak hold

Crest factor measurement

Phase analysis

5. Compliance & Certifications
Standards:

API 670 (5th Ed.)

ISO 10816/20816

IEC 61000-6 (EMC)

Certifications:

ATEX/IECEx (Zone 1)

SIL 2 (optional)

Model Comparison (ES2402 vs ES2403)
Feature ES2402 ES2403
Max Speed 20,000 RPM 30,000 RPM
Vibration Range 20 mm/s 50 mm/s
Housing Aluminum (IP20) Stainless Steel (IP65)
Comm Interface RS-485 only RS-485 + Ethernet
Typical Applications
High-speed turbomachinery:

Gas/steam turbines (>10,000 RPM)

Centrifugal compressors

Precision monitoring:

Aerospace test stands

High-performance pumps