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Yokogawa CM1*A C-Series Signal Conditioner Card
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- Part Number: CM1*A
- Brand: Yokogawa
- Type: Signal Conditioner Cards
- Dimensions: 3.3x10.7x13cm
- Country of Origin: Japan
- Barcode: 8537101190
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Additional Specifications
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Product Description
Configured for signal conversion and system modernization in Yokogawa control environments, the Yokogawa CM1*A (CM1*A Signal Conditioner Card) provides direct physical/electrical execution of signal transformation and power rail decoupling.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CM1*A |
| Brand | Yokogawa |
| Origin | Unspecified |
| Weight | Unspecified |
| Dimensions | Standard C-series nest card profile |
| Operating Temp | Standard industrial limits |
| Storage Temp | Unspecified |
| Power Supply | Backplane-supplied via signal conditioner nest |
| Power Consumption | Unspecified |
| System Migration | Upgrades CENTUM V to CENTUM CS / CS 3000 / CENTUM VP |
| Functional Execution | Industrial signal conversion and dual-stage isolation |
| Isolation Envelope | Three-way isolation (input-to-output, input-to-power) |
| Mounting Format | Direct plug-in to existing C-series signal conditioning nests |
Process Control Signal Integration and Isolation Architecture
- Executes bidirectional signal conversion to allow seamless integration of legacy field instrumentation into modern DCS control loops.
- Integrates robust channel-to-channel isolation hardware and three-way electrical separation to decouple input, output, and power supply stages.
- Preserves 4-20 mA HART loop protocol signal integrity across analog lines while isolating central processing units from field-side ground potential variations.
Frequently Asked Questions
Q: How is the CM1*A card powered inside the control cabinet?
A: The card draws its operational power directly through the backplane connections of the existing C-series signal conditioning rack (nest).
Q: What specific migration path is supported by the CM1*A hardware?
A: The module is engineered to upgrade legacy CENTUM V installations directly to CENTUM CS, CS 3000, and CENTUM VP architecture without rewiring field terminal racks.
Q: How does the module prevent ground loop interference in process loops?
A: It incorporates full three-way galvanic isolation that physically decouples field-side input terminals from both output processing loops and internal system power rails.
Field Installation Guidelines
- Align the card with the card guide channels of the C-series signal conditioning nest and insert firmly until the rear connector seats completely into the backplane.
- Ensure field cabling shields are properly bonded to a designated low-impedance grounding bar to eliminate circulating earth currents and high-frequency interference.
- Separate low-level analog wiring routes from high-voltage AC lines within the cabinet wiring ducts to suppress inductive noise coupling.
- Maintain clear airflow paths across the top and bottom of the signal conditioner nest to facilitate natural convective thermal management.
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