Yokogawa ATR8S-00 S2 RTD Pressure Clamp Terminal Block

The Yokogawa ATR8S-00 S2, also cataloged as the ATR8S RTD Terminal Block, operates as a dedicated hardware component for RTD signal connection and field wiring termination within Yokogawa DCS control architectures. Configured with pressure clamp terminals, this unit provides direct physical execution of temperature sensor wire fixation. It ensures quick, stable cable retention without requiring screw torque adjustments.

Hardware Specifications

Process Signal Interfacing & Channel Isolation Characteristics

• RTD Signal Conditioning Integration: Configured specifically for signal terminals of RTD temperature sensors, routing analog temperature data directly to Yokogawa DCS analog input channels.
• 4-20 mA HART Loop Protocol Compatibility: Supports analog quantity I/O wiring, maintaining low line resistance and signal accuracy across high-density temperature loops.
• Channel-to-Channel Isolation Support: Prevents signal cross-talk and noise interference across adjacent channels in harsh industrial environments, keeping sensor data complete.

Frequently Asked Questions

Q: Does the ATR8S-00 S2 terminal block require periodic screw re-tightening during preventative maintenance?

A: No, the pressure clamp terminal mechanism provides continuous spring force on the conductors, eliminating wire loosening caused by vibration or thermal expansion without screw adjustment.

Q: Can the ATR8S-00 S2 be utilized for non-RTD analog signals in Yokogawa DCS installations?

A: While optimized specifically for RTD temperature sensors, the pressure clamp interface accepts standard analog I/O wiring within the voltage and current limits of the parent DCS input card.

Field Installation Guidelines

1. DIN-Rail / Panel Mounting: Securely snap the module onto a standard 35 mm DIN-rail inside an IP54-rated field marshaling cabinet to shield terminals from airborne dust and moisture.
2. Pressure Clamp Wire Termination: Strip conductor insulation to 8-10 mm. Depress the clamp release mechanism using a standard screwdriver, insert the bare wire end, and release to lock the wire in place.
3. Shielding & Grounding: Terminate individual and overall RTD cable shields to the cabinet ground bar. Ensure ground loop impedance remains below 1 ohm to preserve high analog signal integrity.
4. Wiring Separation: Maintain a minimum physical distance of 300 mm between low-voltage RTD sensor cables and high-power AC lines to prevent induced electrical noise.