ATR8D-00 Yokogawa 8-Channel Dual Terminal Block

Availability: 99 left in stock

Yokogawa ATR8D-00 Redundant Terminal Block The Yokogawa ATR8D-00, also cataloged as the ATR8D Dual Pressure Clamp Terminal Block, operates as...

SKU: ATR8D-00

Manufacturer: Yokogawa
Product No.: ATR8D-00
Product Type: Terminal Blocks
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 800g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ATR8D-00 Redundant Terminal Block

The Yokogawa ATR8D-00, also cataloged as the ATR8D Dual Pressure Clamp Terminal Block, operates as a dedicated hardware component for 8-channel temperature input modules within CENTUM VP and CS 3000 FIO Subsystem platforms. Configured for dual-redundant signal branching, the unit provides direct physical/electrical execution of low-voltage sensor connections to multiple I/O subsystems simultaneously.

Hardware Specifications

Parameter	Specification
Model	ATR8D-00
Brand	Yokogawa
Origin	Japan
Weight	0.8 kg
Dimensions	Standard Yokogawa FIO terminal block profile
Operating Temp	0 to 60 deg C
Power Consumption	Passive component (No independent power draw)
Channel Count	8 channels (Dual-redundant support)
Connection Interface	M3.5 pressure clamp terminals
Supported Sensors	RTD (Pt100, Pt50), Thermocouple (K, J, T, E)
Withstanding Voltage	500 VAC between terminals and ground
Insulation Resistance	>= 10 MOhm at 500 VDC
Storage Temperature	-40 to 85 deg C

Process Control & DCS Instrumentation Integration

The terminal block routes raw field signals from RTD and thermocouple sensors over a dual-path layout, splitting the data matrix to redundant input modules like the AAR181 without signal loss. Internal trace pathways feature precise tracking to facilitate cold junction compensation (CJC) stability across all thermocouple configurations. The physical design ensures channel-to-channel isolation integrity is maintained upstream, safeguarding the 4-20 mA HART loop protocol architectures or dedicated temperature lines against common-mode noise propagation and atmospheric grounding interference.

Frequently Asked Questions

Q: Does the ATR8D-00 require a power supply to maintain the redundant signal paths?

A: No, this unit is a passive hardware component utilizing internal hardwired physical traces to branch the incoming 8-channel signals. It requires no external power connections to function.

Q: Can wire leads be safely connected or disconnected while the paired I/O modules are powered?

A: Field signal wiring can be adjusted on the M3.5 clamps while the backplane is active, provided the technician uses insulated tools. However, care must be exercised not to short adjacent low-voltage temperature signals, which can cause transient diagnostic faults on the active DCS modules.

Field Installation Guidelines

Snap the ATR8D-00 base assembly firmly onto the dedicated DIN-rail or field enclosure mounting plate, checking the mechanical latch engagement.
Strip the field sensor wires to the recommended specification, insert them cleanly into the M3.5 pressure clamps, and torque the screws to standard industrial ratings.
Route thermocouple extension wire or RTD cabling away from any parallel running high-voltage AC conduits to prevent induction noise.
Verify that the terminal block grounding terminal connects directly to the system instrumentation ground bar using low-impedance copper wire.

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