AET4D-00 Yokogawa Analog Terminal Board

AET4D-00 Yokogawa CENTUM VP Terminal Board

AET4D-00 Yokogawa CENTUM VP Terminal Board

Availability: 20 left in stock

Yokogawa AET4D-00 CENTUM VP Terminal Board The Yokogawa AET4D-00, also cataloged as the AET4D Analog Terminal Board, operates as a...

SKU: AET4D-00

Manufacturer: Yokogawa
Product No.: AET4D-00
Product Type: Terminal Boards
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 1500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa AET4D-00 CENTUM VP Terminal Board

The Yokogawa AET4D-00, also cataloged as the AET4D Analog Terminal Board, operates as a dedicated hardware component for field signal termination and cold junction compensation routing within CENTUM VP and CENTUM CS 3000 platforms. Technicians wire field transmitters, RTDs, and thermocouples directly to the M4 screw terminals on this board, which bridges field signals to analog I/O modules such as the AAI143 and AOI143. The 16-channel assembly supports both single and dual-redundant I/O module configurations, maintaining high signal integrity and isolation across process control loops.

Hardware Specifications

Parameter	Specification
Model	AET4D-00
Brand	Yokogawa
Origin	Japan
Weight	1.5 kg
Dimensions	482.6 x 88.1 x 85 mm
Operating Temp	-20 to +60 deg C
Power Consumption	Passive pass-through (bus powered via connected I/O module)
Channel Capacity	16 channels per board
Connection Type	M4 screw terminals
Compatible Modules	Analog I/O modules (e.g., AAI143, AOI143)
Supported Signals	Thermocouple, RTD, 4-20 mA current, VDC voltage
Insulation Resistance	100 Mohm minimum at 500 VDC
Withstand Voltage	500 VAC for 1 minute

Cold Junction Compensation & Channel-to-Channel Isolation

Engineers integrate the terminal board with specialized temperature acquisition loops to maintain cold junction compensation (CJC) accuracy when processing thermocouple millivolt inputs. High-grade terminal contacts restrict parasitic thermal EMF generation across the temperature boundary. Furthermore, robust dielectric isolation up to 500 VAC prevents ground loop currents and field transients from propagating along the 4-20 mA HART loop protocol lines, shielding the system backplane from field-side electrical disturbances.

Frequently Asked Questions

Q: Does the terminal board support dual-redundant analog I/O module wiring configurations?

A: Yes, internal signal busing allows a single terminal board to route field connections simultaneously to primary and secondary redundant analog I/O modules.

Q: What screw torque specification applies when terminating field wiring to the M4 terminals?

A: Technicians should tighten the M4 terminal screws to a nominal torque of 1.2 Nm to ensure low contact resistance without damaging conductor strands.

Q: What insulation resistance threshold does the hardware maintain between field terminals and chassis ground?

A: The board provides an insulation resistance of 100 Mohm minimum when tested at 500 VDC across terminal blocks and mounting hardware.

Field Installation Guidelines

Mount the terminal board securely onto the designated 19-inch rack frame or cabinet panel using four standard mounting screws.
Verify that all field-side power sources remain de-energized prior to attaching signal wiring to the terminal blocks.
Strip field conductor ends to 8 mm and crimp standard ring or spade lugs onto the wire ends before inserting them under the M4 screw terminals.
Tighten all terminal screws to 1.2 Nm using a properly fitted screwdriver to prevent loose connections or micro-arcing.
Route thermocouple extension wires away from AC power lines and variable frequency drive cables to suppress electromagnetic interference.
Connect signal cable shields directly to the designated cabinet grounding bar at a single point to prevent ground loop noise.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.