IHI CQ71SEN004 (Shinkawa Vibration Transmitter for IHI-Sullair Centrifugal Compressor)

Product Description

The IHI CQ71SEN004 is a two-wire vibration transmitter co-developed by IHI and Shinkawa, specially designed for IHI-Sullair centrifugal air compressors. It converts vibration acceleration signals into standard 4–20mA output for compressor control and condition monitoring system, used to monitor bearing vibration of high-speed centrifugal compressor rotors. It is a genuine OEM spare part for IHI centrifugal compressor packages.

Features

• Part Number: CQ71SEN004, cross reference: WK-142K3-3
• Brand: IHI (Shinkawa internal sensor)
• Signal type: IEPE vibration transmitter, 2-wire 4–20mA output
• Power supply: 24VDC loop power
• Enclosure: Stainless steel housing, IP65
• Process thread: 1/2" NPT mounting thread
• Operating temperature: -40℃ ~ +125℃
• Accuracy: ±0.1% span
• Built-in vibration signal conditioning, no separate preamplifier needed
• Manufacturer Status: Active OEM spare; original new stock, calibrated surplus and refurbished available
• Typical gross weight: approx 0.15 kg, origin: Japan
• Matched system: IHI-Sullair centrifugal compressor PLC control cabinet

Applications

• IHI / Sullair centrifugal compressor bearing vibration monitoring
• Oil-free centrifugal air compressor condition protection
• Factory air station, chemical plant large air compressor safety interlock
• Rotating machinery vibration monitoring and spare replacement
• Compressor overhaul, sensor upgrade and spare inventory

FAQ

Q: What is the cross model for CQ71SEN004?
A: The cross part number is WK-142K3-3 (Shinkawa internal code).

Q: Can it be used on Bently Nevada 3500 rack?
A: It outputs 4-20mA vibration value, it can connect to analog input module, but it is not a native 3500 proximity probe.

Q: What is the difference between CQ71SEN004 and CQ71SEN005?
A: CQ71SEN004 is vibration transmitter; CQ71SEN005 is proximity probe for shaft displacement measurement.