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- Yokogawa CH1*A Signal Conditioner Card
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Yokogawa CH1*A Signal Conditioner Card
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- Part Number: CH1*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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وصف المنتج
The Yokogawa CH1*A, also cataloged as the CH1*A Signal Conditioner Card, operates as a dedicated hardware component for signal conversion and I/O isolation within CENTUM V and CENTUM VP control systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CH1*A |
| Brand | Yokogawa |
| Origin | USA |
| Weight | 0.60 kg (600 g) |
| Dimensions | Standard card size for Yokogawa signal nests |
| Operating Temp | -10 to 55 deg C |
| Power Supply | Supplied via nest backplane |
| Power Consumption | Unspecified |
| System Compatibility | CENTUM V / CENTUM VP / Migrated systems |
| Functionality | Signal conversion, input/output isolation, power isolation |
| Mounting Format | Installed in signal conditioner nest |
| Certifications | CE, UL, RoHS compliant |
Process Control Signal Integration and Isolation Architecture
- Executes three-way galvanic isolation between input circuitry, output loops, and the backplane power rail to prevent earth potential ground loops.
- Facilitates 4-20 mA HART loop protocol transparent signal conditioning for analog process instrumentation tied to DCS field input networks.
- Provides internal channel-to-channel isolation and surge filtering to protect central logic processors from field-side voltage spikes and high-frequency noise.
Frequently Asked Questions
Q: How is primary operational power provided to the CH1*A signal conditioner card?
A: Power is distributed directly to the module through the internal power rail of the signal conditioner nest backplane.
Q: What isolation boundaries are maintained within the CH1*A module circuitry?
A: The card features complete three-way electrical isolation separating the input, output, and power supply circuits.
Q: Is the CH1*A card hot-swappable during system operation?
A: Replacement must adhere to the specific nest backplane guidelines; field technicians should ensure the loop is switched to manual mode prior to pulling the module to avoid process disturbances.
Field Installation Guidelines
- Slide the card smoothly into its designated slot in the signal conditioner nest, ensuring the rear connector fully seats into the backplane socket.
- Ground all field signal cable shields at a single point on the cabinet's low-impedance earth bar to maintain high-frequency noise suppression.
- Ensure field wiring channels maintain physical separation from high-voltage AC cables to prevent inductive electromagnetic coupling.
- Confirm that the signal conditioner nest ventilation pathways remain unblocked to allow natural convective airflow around the card assembly.
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