METSO D201189L AI8H High‑Precision 8‑Channel Analog Input Module for Metso‑Valmet DNA Automation System

Description

METSO D201189L AI8H High‑Precision 8‑Channel Analog Input Module for Metso‑Valmet DNA Automation System

Product Details

The D201189L, also known as AI8H, is a high‑density analog input module developed by Metso (now Valmet), designed for the DNA distributed automation platform. It provides 8 independent analog input channels to collect field process signals including 4‑20 mA, 0‑10 V, RTD and thermocouple sensor signals. With high‑resolution A/D conversion circuitry, it converts analog field measurements into digital data for system controller processing. Each channel is equipped with galvanic isolation to suppress field‑side surge and electromagnetic interference, protecting the system backplane from external circuit faults. Per‑channel LED indicators deliver direct visual status feedback. Adopting standard rack‑mount structure, it fits into Metso‑Valmet I/O rack backplane bus for fast system integration. Widely deployed as original spare‑part and retrofit component for pulp‑paper, mining and chemical process sites, it delivers stable performance under dusty, vibrating industrial working conditions.

D201189L

Applications

‑ Pulp & paper mill process monitoring and closed‑loop control ‑ Mineral processing and metallurgical plant signal acquisition ‑ Chemical plant DCS field signal measurement ‑ Power plant auxiliary process parameter collection ‑ Water‑wastewater treatment automation system ‑ Retrofit & spare‑part replacement for legacy Metso‑Valmet DNA systems ‑ General heavy‑industry process instrumentation data acquisition

Related Series Models (6+)

1. D201189
2. D201129L
3. D201136L
4. D20076
5. D20085
6. D20105
7. D20121

Key Features

1. 8‑channel high‑density analog input design, supports multiple signal types: current, voltage, RTD and thermocouple.
2. High‑precision A/D conversion ensures accurate measurement for critical process parameters.
3. Channel‑level galvanic isolation improves anti‑interference capability, prevents field wiring faults from damaging the whole rack.
4. Independent LED status indicator per channel for fast on‑site troubleshooting.
5. Standard rack‑mount modular hardware, easy installation, hot‑swap compatible for maintenance.
6. Optimized hardware for continuous 24/7 operation in harsh industrial environments.
7. Seamless communication with Metso‑Valmet DNA controller via backplane bus.
8. Supports flexible channel configuration according to different field sensor types.

Main Functions

1. Collect multi‑type analog signals from field transmitters, RTD and thermocouple sensors.
2. Perform high‑precision analog‑to‑digital conversion and transmit digital data to host controller.
3. Provide galvanic isolation between field instrument side and automation system internal bus.
4. Real‑time channel status monitoring, indicate working/fault status via onboard LED lamps.
5. Transmit diagnostic information and channel fault alarms to the main control system.
6. Support channel parameter configuration for different sensor modes.
7. Complete signal conditioning for raw field measurement signals.
8. Cooperate with other DNA series modules to realize whole‑plant process data acquisition and monitoring.