Product Details
The Yokogawa FCA4*B, also cataloged as the FCA4 Pressure Measurement Module, operates as a dedicated hardware component for dual-sensor pressure and differential pressure signal acquisition within Yokogawa CENTUM VP and CENTUM CS DCS networks.
Suffix Breakdown & Model Matrix
| Code Element | Specification / Description |
|---|---|
| FCA4 | Base module designation for multi-protocol pressure and differential pressure measurement |
| *B | Style code Revision B specifying housing enclosure construction and terminal interface |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FCA4*B |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | 7.6 cm x 3 cm x 15.2 cm |
| Operating Temp | -10 deg C to 60 deg C |
| Power Consumption | 10 W |
| Power Supply | 24 VDC |
| Enclosure Rating | IP67 (ruggedized metal housing) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Measured Variables | Pressure, differential pressure (DP) |
| Sensor Inputs | Dual pressure sensor interface |
| Input Signal Types | 4-20 mA, mV, thermocouple, RTD |
| Output Signal | Digital |
| Communication Protocols | FOUNDATION Fieldbus, PROFIBUS DP, HART |
FOUNDATION Fieldbus and 4-20 mA HART Loop Protocol Integration
The FCA4*B pressure measurement module integrates multi-protocol digital communication, supporting FOUNDATION Fieldbus, PROFIBUS DP, and 4-20 mA HART loop protocol standards. Internal signal conditioning circuitry converts analog millivolt, thermocouple, RTD, and 4-20 mA inputs from dual pressure sensors into calibrated digital output streams. Channel-to-channel isolation and integrated signal filtering suppress common-mode electrical noise and prevent ground loops, delivering deterministic process variable updates to CENTUM VP and CENTUM CS controllers.
Frequently Asked Questions
Q: Does the IP67-rated housing of the FCA4*B require additional field enclosures for outdoor mounting?
A: The IP67 metal housing provides direct resistance against dust ingress and low-pressure water jets, allowing direct field mounting; however, secondary shading is recommended in high-temperature environments subject to direct solar exposure.
Q: How are mixed sensor input types configured on the FCA4*B module?
A: Analog input selection across 4-20 mA, millivolt, thermocouple, and RTD signal sources is defined via system configuration software, which adjusts internal analog-to-digital scaling and cold junction compensation parameters per input channel.
Q: What power parameters must be met when energizing the module on a 24 VDC bus loop?
A: The power supply must maintain a stable 24 VDC output capable of supplying at least 10 W continuous power per module under full sensor excitation and active fieldbus transmission states.
Field Installation Guidelines
- Mechanical Mounting: Secure the FCA4*B module to structural panels or mounting plates using M4 fasteners. Torque all mounting hardware to 2.5 N-m to maintain structural stability.
- Gland Sealing: Cable entries must use IP67-rated metallic cable glands. Install sealed blind plugs in all unused cable entry ports to preserve the enclosure rating.
- Shield Grounding: Connect signal cable drain wires directly to the main functional earth (FE) ground terminal on the module housing to suppress high-frequency electromagnetic interference.
- Wiring Separation: Route 24 VDC power lines and high-frequency digital signal cables in separate wire ducts, maintaining a minimum 300 mm distance from 230 VAC power conduits.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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