Configured for secure fluid line termination in process instrumentation, the YOKOGAWA ATA4S-10 (ATA4S-10 Pressure Clamp Terminal Block) provides direct physical coupling for pressure transmitter tubing. This hardware component maintains mechanical integrity within pressure-sensing signal loops.

Suffix Breakdown & Model Matrix

• ATA4S: Base series designation for the pressure clamp terminal block assembly.
• -10: Specific configuration suffix denoting the standard terminal interface geometry and tubing capacity.

Hardware Specifications

Process Instrumentation Pressure Connectivity

The ATA4S-10 functions as the primary mechanical interface between process piping and pressure transmitter diaphragm seals. By utilizing specialized pressure clamps, the block ensures that pneumatic or hydraulic lines are held securely under operating conditions, preventing process fluid bypass or pressure drift. The physical design facilitates consistent line alignment, which is required for accurate 4-20 mA HART loop performance in pressure measurement applications.

Frequently Asked Questions

Q: Is the ATA4S-10 compatible with all standard instrument tubing sizes?

A: The terminal block is designed for a specific range of standard instrumentation tubing. Consult the site-specific piping schedule to ensure the tube outside diameter matches the clamp interface specifications before installation.

Q: How does this block ensure leak-free operation?

A: The pressure clamps are engineered to apply uniform radial force around the tubing circumference. Proper seating of the tubing within the clamp assembly is required to maintain the seal integrity under rated process pressures.

Field Installation Guidelines

• Inspect the tubing ends for burrs or debris before insertion; clean, square-cut ends are required for optimal clamping performance.
• Insert the tubing into the block interface until it reaches the physical stop to ensure the engagement depth is correct.
• Tighten the clamp fasteners in accordance with the specified torque requirements to prevent tubing crush or inadequate sealing force.
• After installation, perform a soap-bubble test or a pressure-decay check to verify the tightness of the connections before introducing process fluid.
• Ensure the terminal block itself is securely mounted to a vibration-damped surface to prevent long-term loosening of the clamp connections due to mechanical fatigue.