Emerson CSI A6125 Dual-Channel Vibration Monitor Module

Emerson CSI A6125 Case Piezoelectric Vibration Monitor

The CSI A6125 from Emerson provides reliable vibration monitoring for critical machinery. This compact module is part of the CSI 6500 system. 

Compact Design & Core Features

• Two-channel 3U module saves 50% cabinet space versus traditional 6U cards.
• Fully compliant with API 670 machinery protection standards.
• Features hot-swappable design for easy maintenance without shutdown.
• Supports remote limit multiply and trip bypass functions.
• Works with piezoelectric accelerometers and velometer sensors.

Key Technical Specifications

• Brand & Model: Emerson CSI A6125.
• Input Channels: Two independent differential inputs.
• Input Voltage Range: -5 to +15 VDC.
• Frequency Range (Accel): 30-8000 Hz (High), 10-2000 Hz (Med), 6-1000 Hz (Low).
• Frequency Range (Vel): 10-2000 Hz (High), 6-1500 Hz (Med), 2-250 Hz (Low).
• Sensor Supply: 2-8 mA constant current at 30 VDC.
• Current Output: 0/4-20 mA per channel, ±1% accuracy, load <500 Ω.
• Voltage Output: 0-10 VDC per channel, load >100 kΩ.

Alarm & Monitoring Functions

• Alert & Danger Setpoints: Adjustable from 5% to 100% of full scale.
• Setpoint Resolution: 1% of full scale value.
• Alarm Delay: 0-5 seconds per channel, or 0-36 seconds with relay card.
• Alarm Hysteresis: Adjustable 0-20% on decreasing signal.
• Self-Checking: Monitors power, sensor, cable, temperature, and hardware.

Environmental & Physical Data

• Operating Temperature: 0°C to 65°C (32°F to 149°F).
• Storage Temperature: -30°C to 85°C (-22°F to 185°F).
• Humidity: 5% to 95% RH, non-condensing.
• Power Supply: 24 VDC, max 6W (250 mA).
• Dimensions: 128.4mm (H) x 30.0mm (W) x 160.0mm (D) - 3U size.
• Weight: Approximately 320g (0.705 lbs).

Frequently Asked Questions

• Q: What types of sensors does the CSI A6125 support?
  A: It supports standard two-wire piezoelectric accelerometers and velometers with a 2-8 mA constant current supply.
• Q: How is the alarm delay function configured on this monitor?
  A: You can set independent alarm delays from 0 to 5 seconds per channel directly on the module, extending to 0-36 seconds with an optional A6740 relay card.
• Q: What is the main advantage of the 3U, single-slot design?
  A: The compact 3U size reduces cabinet space requirements by half compared to older four-channel 6U cards, allowing higher density monitoring system configurations.