General Description
The EPRO A3311 is a single-channel vibration monitoring module designed for machinery protection in industrial applications (pumps, motors, fans). It provides real-time vibration measurement with 4-20mA output and alarm relays.

Key Parameters
Input Specifications
Measurement Type: Vibration velocity (RMS or peak)

Sensor Compatibility:

Velocity sensors (4–20 mA / 0–10V)

Accelerometers (with IEPE conditioner)

Frequency Range: 10 Hz – 1 kHz (ISO 10816 compliant)

Measurement Range: 0–20 mm/s RMS (adjustable)

Outputs & Alarms
Analog Output: 1x 4–20 mA (isolated, linear to vibration)

Relay Outputs: 2 programmable relays (SPDT, 250V AC/2A)

Alarm Types: Danger/Warning (adjustable thresholds)

Electrical & Environmental
Power Supply: 24V DC (±10%)

Power Consumption: <3W

Operating Temperature: -20°C to +70°C

Protection Class: IP40 (panel-mounted)

Performance
Accuracy: ±1% FS

Sampling Rate: 1 kHz

Display & Interface
Front Panel: LED indicators (Power, Alarm, Signal)

Configuration: DIP switches for range/alarm setup

Typical Applications
Industrial pump/motor monitoring

Fan/blower vibration protection

Standalone machinery protection

Compliance & Certifications
Standards: ISO 10816

Certifications: CE, UL