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Yokogawa ATT4S-00 S2 Terminal Block
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- Part Number: ATT4S-00 S2
- Brand: Yokogawa
- Type: Terminal Blocks
- Dimensions: 3.3x10.7x13cm
- Country of Origin: Japan
- Barcode: 8537101190
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Additional Specifications
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Tags:
Terminal Blocks
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Yokogawa CENTUM VP
Product Description
The Yokogawa ATT4S-00 S2, also cataloged as the ATT4S Terminal Block, operates as a dedicated hardware component for thermocouple and millivolt (mV) signal connections within Yokogawa process control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ATT4S-00 S2 |
| Brand | Yokogawa |
| Origin | Unspecified |
| Weight | 0.20 kg |
| Dimensions | Compact terminal block footprint |
| Operating Temp | Standard industrial limits |
| Storage Temp | Unspecified |
| Power Consumption | Passive physical termination unit |
| Signal Channels | 16 channels (Thermocouple / mV inputs) |
| Connection Type | Pressure clamp terminals |
| Isolation / Insulation | 500 V AC withstanding voltage |
| Application | Field variable wiring interface |
Process Control Signal Integration and Isolation Architecture
- Provides cold junction compensation (CJC) reference paths across pressure clamp terminals to maintain millivolt-level temperature accuracy.
- Incorporates 500 V AC dielectric insulation ratings across terminal paths to ensure channel-to-channel isolation and prevent ground loop interference.
- Facilitates direct 4-20 mA HART loop protocol transparent routing and millivolt sensor integration across high-density DCS I/O field interface blocks.
Frequently Asked Questions
Q: What termination mechanism is utilized on the ATT4S-00 S2 terminal block?
A: The module incorporates 16-channel pressure clamp terminals engineered for vibration-resistant wiring retention.
Q: What is the dielectric voltage withstand rating between signal terminals?
A: The terminal assembly is rated for a 500 V AC withstanding voltage, providing electrical surge protection across individual sensor channels.
Q: How does the terminal block prevent measurement errors across thermocouple channels?
A: The terminal housing integrates isothermal mass zones to minimize thermal gradients across field screw interfaces, maintaining precise cold junction compensation baseline integrity.
Field Installation Guidelines
- Mount the terminal block securely onto the designated enclosure baseplate or DIN rail, verifying physical locking stability.
- Strip field thermocouple leads to the specified length and insert fully into the pressure clamp terminals, tightening clamping screws to standard torque limits.
- Terminate all cable shields at a single dedicated low-impedance earth bar within the cabinet to suppress high-frequency noise.
- Maintain physical separation between low-level millivolt/thermocouple field wiring and high-voltage power cables in control panel wiring ducts.
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