EPRO A6220 Shaft Eccentricity Monitor

This monitor measures shaft bow and eccentricity in rotating turbomachinery. You will find the EPRO A6220 Shaft Eccentricity Monitor providing critical protection for steam and gas turbines. Its dual-channel design supports two independent proximity probe inputs simultaneously.

Technical Specifications

This monitor contains two independent measurement channels for redundancy. You can also locate four relay outputs for alarm and trip functions. The EPRO A6220 Shaft Eccentricity Monitor stores no battery energy for configuration retention. Instead, it uses non-volatile memory for all alarm setpoints and parameters. Therefore, this device never requires any routine battery replacement.

Parameter	Specification
Full Product Name	EPRO A6220 Shaft Eccentricity Monitor
Series	A6000
Product Type	Shaft Eccentricity Monitor
Weight	1.45 kg
Length	19.0 cm
Width	8.5 cm
Panel Height	12.8 cm
Measurement Channels	2 (independent)
Sensor Input	EPRO PR6423 series probes
Measuring Range	0-1000 µm peak-peak
Frequency Response	1-100 Hz
Relay Outputs	4 (2 per channel)
Analog Outputs	2 x 4-20 mA
Power Input	24 VDC or 110/220 VAC
Energy Storage	Non-volatile memory only

Measurement Details

The EPRO A6220 Shaft Eccentricity Monitor calculates shaft bow during startup and slow roll conditions. You can set alarm and trip thresholds independently for each channel. The monitor filters out vibration components above 100 Hz for eccentricity-only measurement. Moreover, each channel provides a separate 4-20 mA output for DCS integration. This design ensures reliable turbine protection during critical startup phases.

Mechanical Integration and Mounting

You must mount the EPRO A6220 Shaft Eccentricity Monitor into a standard 19-inch rack or panel cutout. After positioning, secure the unit using the four mounting screws on the front bezel. The monitor measures exactly 19.0 centimeters in length and 8.5 centimeters in width. Its total weight reaches approximately 1.45 kilograms for stable panel mounting. Furthermore, the front panel includes LED indicators for channel status and alarm conditions.

Environmental and Storage Guidelines

You should store this EPRO A6220 Shaft Eccentricity Monitor in a dry location away from vibration. The monitor operates reliably between -20°C and +65°C ambient temperature. Likewise, keep the unit away from conductive dust or corrosive gases. Because the monitor uses solid-state components only, it requires zero regular maintenance over its service life.