AAI841-S00-S2 YOKOGAWA Series Datasheet & Technical Manual

AAI841-S00-S2 YOKOGAWA Analog I/O Module Process Control Datasheet

AAI841-S00-S2 YOKOGAWA Analog I/O Module Process Control Datasheet

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YOKOGAWA AAI841-S00-S2 Analog Input Output Module Configured for 4-20 mA process loop monitoring and control, the YOKOGAWA AAI841-S00-S2 (AAI841-S00 Analog...

SKU: AAI841-S00

Manufacturer: Yokogawa
Product No.: AAI841-S00
Product Type: Analog Input Output Modules
Product Origin: Japan
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

YOKOGAWA AAI841-S00-S2 Analog Input Output Module

Configured for 4-20 mA process loop monitoring and control, the YOKOGAWA AAI841-S00-S2 (AAI841-S00 Analog I/O Module) provides direct physical/electrical execution of sensor data acquisition and field actuator modulation. This module manages eight input channels and eight output channels, facilitating high-speed data exchange within the control station backplane.

Suffix Breakdown & Model Matrix

Code	Specification
AAI841	Base Model (8-channel analog input/output)
-S00	Standard hardware configuration
S2	S2 Style / Revision Index

Hardware Specifications

Parameter	Specification
Model	AAI841-S00-S2
Brand	YOKOGAWA
Origin	Indonesia
Weight	0.3 kg
Dimensions	Not specified (Standard I/O module footprint)
Operating Temp	-20 deg C to 70 deg C
Power Consumption	310 mA (5 V DC), 500 mA (24 V DC)
I/O Channels	8 Inputs / 8 Outputs
Signal Range	4-20 mA
Step Response	Input 100 ms / Output 40 ms

DCS Process Control Connectivity

The AAI841-S00 supports integration with field devices via the 4-20 mA HART loop protocol, allowing for simultaneous process variable transmission and diagnostic data retrieval. In non-isolated architectures, engineers must maintain strict adherence to common-mode grounding standards to prevent ground loop currents from injecting noise into the analog measurement circuits. To ensure data integrity, the system must be configured to account for the internal input resistance characteristics, which shift from 400 Ohm at 20 mA to 1000 Ohm at 4 mA.

Frequently Asked Questions

Q: Can this module be configured for mixed 2-wire and 4-wire transmitter connections?

A: Yes. The input configuration is selectable per channel via setting pins on the module. Ensure the internal transmitter power supply specifications are verified against the specific sensor requirements prior to deployment.

Q: What are the primary considerations when replacing a non-isolated module in a pre-existing loop?

A: Given the non-isolated design, users must confirm that the field side does not introduce external potential differences. If the process requires isolation to prevent loop interference, external galvanic isolators must be installed between the field devices and the module input terminals.

Field Installation Guidelines

Verify that the module is installed in a clean, dry location compliant with the -20 deg C to +70 deg C operating temperature range.
Ensure the KS cable or MIL connector is fully seated and locked to the module front panel to prevent intermittent electrical contact.
Check the load resistance on the analog output channels; maintain a resistance below 750 Ohm to ensure the output signal remains within the linear operational range.
Ground all cable shields at the designated system earth bus bar to mitigate electromagnetic interference, particularly for the non-isolated input/output circuits.
Perform a continuity check on field wiring and verify the "Circuit-Open Detection" threshold is calibrated to trip below 0.65 mA as per the loop safety logic

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