Honeywell 621-3550 Analog Input Module

Product Overview

The Honeywell 621-3550 is a high-performance analog input module designed for IPC 621 programmable controllers. It captures signals from various field devices such as sensors, transmitters, and transducers. Moreover, its robust design ensures precise data acquisition for industrial automation processes, enabling accurate monitoring and control in demanding environments. This module supports multiple signal types, making it highly versatile for process industries.

Key Features and Benefits

• Supports up to 16 analog input channels, allowing high-density signal acquisition for complex systems.

• Accepts diverse signal types, including 4–20 mA current, 0–10 V voltage, thermocouples, and RTDs.

• Provides 12-bit A/D conversion and ±0.1% full-scale accuracy for reliable measurements.

• Channel-to-channel and channel-to-system isolation reduces electrical noise interference.

• Equipped with diagnostic LEDs and programmable scaling for easier troubleshooting and system optimization.

• Industrial-grade construction ensures long-term reliability in harsh operating conditions.

• Compact design with low power consumption (~300 mA at 24 VDC) enables efficient system integration.

Technical Specifications

• Channels: 16 analog input channels

• Signal Types Supported: 4–20 mA, 0–10 V, Thermocouples, RTDs

• Resolution: 12-bit A/D conversion

• Accuracy: ±0.1% of full scale

• Isolation: Channel-to-channel and channel-to-system

• Power Supply: 24 VDC via IPC 621 backplane

• Current Consumption: ~300 mA

• Operating Temperature: 0°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity Range: 5% to 95% RH, non-condensing

• Dimensions: 27.4 × 17.1 × 3.3 cm

• Weight: 0.57 lbs

Typical Applications

The 621-3550 is ideal for oil & gas, chemical, and power generation industries. For instance, it can monitor temperature, pressure, and flow rates in real-time. Its high-density input capability supports complex automation tasks while ensuring data accuracy and system stability. Moreover, it integrates seamlessly with Honeywell IPC 621 controllers for centralized process control.

Support and Reliability

Honeywell ensures a 12-month warranty on new or refurbished units. The module’s diagnostic features simplify maintenance and reduce downtime. In addition, channel isolation enhances safety and protects both the controller and field devices from electrical interference.

FAQ

Q: What signal types can the 621-3550 accept?
A: It supports 4–20 mA current, 0–10 V voltage, thermocouples, and RTDs.

Q: Is this module compatible with Honeywell IPC 621 controllers?
A: Yes, it is fully compatible with IPC 621 programmable controllers and DCS systems.

Q: What is the operating temperature range?
A: The module operates reliably from 0°C to +60°C and stores safely between -40°C and +85°C.

Q: Does the module include diagnostic features?
A: Yes, it has diagnostic LEDs and programmable scaling for easy troubleshooting and monitoring.