Emerson EPRO | A6312-8 Speed and Key Monitor

Precision Speed Monitoring for Industrial Machinery

The Emerson EPRO A6312-8 Speed and Key Monitor delivers ultra-accurate rotational monitoring with dual-channel outputs. Engineered for reliability in harsh environments, this DIN-rail mounted solution protects turbines, compressors, and rotating equipment from catastrophic failure with its configurable alarm thresholds and robust 0-65°C operating range.

Core Technical Specifications

• Brand/Model: Emerson EPRO A6312-8
• Measurement Range: 0-20,000 RPM
• Accuracy: ±1% full scale
• Analog Outputs: Dual 4-20mA channels (500Ω max load)
• Pulse Outputs: 0-20kHz TTL signals
• Response Time: Configurable 0-10 sec

Protection & Control Features

• Dual Alarm Setpoints with 5-100% adjustable range
• 0-5 sec delay per channel (36 sec with A6740 relay)
• NO/NC contact configuration
• 1% resolution with 20% hysteresis

Environmental Durability

• Operating Temp: 0°C to 65°C
• Storage Temp: -30°C to 85°C
• 95% humidity tolerance
• Vibration resistant design

Physical Specifications

• Dimensions: 160x128x30mm (DIN 41494)
• Weight: 320g (450g packaged)
• Eurocard PCB format
• 6TE/3HE panel footprint

Industrial Implementation

Installs in minutes using standard DIN rails. Compatible with Emerson's A6500 monitoring systems and A6740 relay cards. Certified for global industrial safety standards (ATEX/IECEx).

Complete Package Includes

• A6312-8 Monitor Unit
• Installation manual
• DIN rail mounting kit
• Terminal connectors

Real-World Application

Prevents turbine overspeed at power plants with 0.2ms response time. Monitors compressor shafts in oil refineries where temperatures reach 60°C. Provides bearing protection for 5MW generators with dual-redundant alarms.

Warranty: 12-month manufacturer guarantee against defects.