Honeywell 900A01-0202 HC900 Analog Input Module

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Produsen: Honeywell
Nomor Produk: 900A01-0202
Negara asal:Amerika Serikat
Jenis Produk: Analog Input Modules
Pembayaran: T/T, Western Union
Berat: 2000g
Pelabuhan pengiriman: Xiamen
Garansi: 12 bulan

Description

Processing multi-channel analog signals is simplified using the Honeywell 900A01-0202, a high-performance, 8-channel isolated analog input module designed for the HC900 process controller platform. This module allows direct connection to a wide range of industrial sensors, featuring universal channel configuration to minimize hardware footprint and simplify system design. Each of the eight channels can be individually programmed to accept different signal types, including thermocouples, RTDs, voltage, current, resistance, and slidewires, providing high application flexibility in demanding process environments.

The Honeywell 900A01-0202 features robust galvanic isolation to prevent ground loop currents from degrading signal integrity. With channel-to-channel and channel-to-logic isolation, the module maintains stable operation and high measurement accuracy even in electrically noisy industrial settings. Integrated diagnostics, such as thermocouple break detection via current pulse, ensure rapid troubleshooting and reduced system downtime.

Features

Eight independent, galvanically isolated analog input channels.
Universal input support including mV, V, mA, RTD, Thermocouple, Ohms, and Slidewire.
Robust isolation: 400 VDC point-to-point and 1000 VDC input-to-logic.
High-efficiency noise rejection with >130dB common mode rejection at 120VAC.
Active sensor diagnostics with automatic thermocouple break detection.
RTD inputs isolated in pairs for optimal signal processing and cabling efficiency.

Applications

Thermal processing and industrial furnace monitoring.
Oil and gas refining and pipeline monitoring.
Chemical processing and reactor temperature tracking.
Power generation plant parameter monitoring.
Water and wastewater treatment facility automation.

Technical Specifications

Manufacturer	Honeywell
Part Number / Model	900A01-0202
Series	HC900 Control System
Module Type	Analog Input Module
Number of Channels	8 (isolated)
Input Configurations	mV, V, T/C, RTD, Ohms, mA, Slidewire (configurable per channel)
Input Impedance (T/C and mV)	10 megohms
Input Impedance (Volts)	>1 megohm
Input Impedance (mA)	250 ohms
Galvanic Isolation (Point-to-Point)	400 VDC
Galvanic Isolation (To Logic)	1000 VDC
Series Mode Noise Rejection	>60dB
Common Mode Noise Rejection	>130dB at 120VAC
Over-Range Limit (Linear/Volts)	+/- 10%
Over-Range Limit (Non-Linear/TC, RTD)	+/- 1%
Sensor Break Detection	Thermocouple break detection via current pulse
Shipping Weight	2 kg

Connections and Interfaces

Connection Type	Specification / Layout
RTD Wiring configuration	Isolated in pairs (IRTD is common to two inputs)
Thermocouple Inputs	Cold junction compensation; maximum 100 Ohms/Leg
RTD Compatibility	PT100 3-wire (40 ohms balanced max), 100/500/1000 RTD (100 Ohms/Leg), 10 Ohm Cu (10 Ohms/Leg)
Slidewire Range	100 to 6,500 Ohms (10% of total resistance/leg)

Installation Guidelines

Mounting: Ensure the module is securely seated in the HC900 rack chassis slot and the module retaining screws are fully tightened.
Wiring: Route low-voltage analog input signal cables away from high-voltage AC power distribution wiring to prevent electromagnetic coupling.
Shielding: Use shielded twisted-pair cabling for all sensor connections. Connect shields to the chassis ground bar at the controller end only.
Thermal Management: Maintain recommended clearance spaces around the rack assembly to ensure natural convection cooling matches environmental specifications.

Key Features:

#Analog Input Modules #Honeywell HC900

What sensor types can be connected to the Honeywell 900A01-0202 module?

The Honeywell 900A01-0202 is a universal analog input module that supports thermocouples, RTDs (including PT100), millivolt (mV) signals, standard DC voltage (V), DC current (mA), resistance (Ohms), and slidewire inputs.

What isolation levels does the 900A01-0202 input module provide?

The module provides galvanic isolation of 400 VDC point-to-point (channel-to-channel) and 1000 VDC isolation from the input channels to the controller's logic circuit. Note that RTD inputs are isolated in pairs.

How does the module handle sensor diagnostics, such as broken thermocouple wires?

The 900A01-0202 module uses an active current pulse method to perform real-time sensor break detection on thermocouple input channels.

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