IHI CQ71SEN004 Vibration Transmitter

Technical Specifications

• Utilizing a standard 2-wire loop-powered topology.
• Utilizing a fully enclosed, high-vibration-resistant industrial-grade housing.
• Integrating non-polarized field terminal interfaces.
• Used for closed-loop monitoring of bearing vibration and rotor displacement in rotating machinery, including centrifugal air compressors.

TThe CQ71SEN004 converts dynamic acceleration or velocity physical inputs from sensor probes into a proportional standard analog output stream to interface with central automation controllers. The circuitry utilizes an industrial shielding framework, incorporating physical galvanic isolation and internal filters to suppress electromagnetic noise and prevent signal distortion. Enclosed in an industrial-grade housing, the internal electronics sustain 24/7 continuous operation under conditions of mechanical shocks and ambient temperature shifts.

Common Applications

Heavy Industrial Turbomachinery: Utilized in operational state monitoring for industrial steam turbines, flue gas expanders, and large blowers, acquiring dynamic physical vibration signals of high-speed rotors to prevent mechanical rubbing and structural damage.
Large Ventilation and Material Handling Fans: Executing continuous vibration monitoring on heavy-duty equipment including main mining fans and cement kiln induced draft fans to prevent sudden mechanical breakdown from impeller unbalance or bearing wear.
Petrochemical Pump Package Monitoring: Applied to driving and non-driving ends of high-power multistage crude oil pumps and liquefied natural gas (LNG) cryogenic pumps to close-loop track mechanical stress variations during operations.

Industrial Resilience Protection

The CQ71SEN004 incorporates physical galvanic isolation and filters to eliminate ground loops and block high-frequency electromagnetic noise. Sealed within a corrosion-resistant and shockproof enclosure, the internal electronics undergo temperature shift and mechanical impact testing to prevent signal degradation or hardware failure during 24/7 continuous operations.

Technical FAQ

Q: What is the main function of CQ71SEN004?
A:  It converts mechanical vibration into a 4-20mA analog current signal.

Q:  How to install CQ71SEN004?
A:  It is usually mounted via DIN rail or screws inside a control cabinet.

Q: What parameters does CQ71SEN004 measure?
A: It primarily measures vibration velocity or displacement of rotating machinery.

Q: What input does CQ71SEN004 receive?
A: It receives signals from vibration sensors (velocity or acceleration probes).

Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.

Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.

Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.

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