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ABB AI845 3BSE023675R1 S800 I/O Series 8-Channel Analog Input Module

Brand: ABB

Item NO: AI845 3BSE023675R1

Effect: On site analog signal acquisition and analog-to-digital conversion

Condition: In stock, brand new/Used

Warranty: 365 days

Payment:T/T 50% deposit, 50% balance

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Product Description

ABB AI845 3BSE023675R1 S800 I/O Series 8-Channel Analog Input Module

AI845 3BSE023675R1 is an ABB S800 I/O series 8-channel analog input module. Compatible with System 800xA and Symphony Plus distributed control systems, it is the core card for collecting on-site analog signals in process industries. The module is designed for single ended and single pole input, compatible with 4-20mA and 0-20mA currents, as well as 1-5V and 0-5V voltage standard industrial signals. AI845 3BSE023675R1 supports HART intelligent transmitter penetration communication and can be paired with TU844/TU845 redundant terminal bases to achieve single module or 1:1 redundant operation.

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ABB AI845 3BSE023675R1 S800 I/O Series 8-Channel Analog Input Module

Core function

On site analog signal acquisition and analog-to-digital conversion
Receive standard current and voltage analog signals output by two-wire/three wire transmitters, convert them into digital signals through a 12 bit ADC, and upload them to the controller to complete real-time acquisition of on-site process variables.
HART intelligent instrument data transparent transmission
Supporting HART overlay communication, the upper system can directly read the device diagnosis, range, calibration, and fault information of the smart transmitter without the need for an additional HART acquisition card.
Grouping electrical isolation anti-interference
8-channel overall ground grouping isolation, blocking on-site ground circulation and surge voltage, avoiding measurement drift and data jump caused by strong electromagnetic interference.
Standardized rack hot swappable operation and maintenance
The S800 unified rack slot structure allows for separate module insertion and replacement when the cabinet is powered on, without the need for the entire system to be shut down for maintenance.

Parameter Specifications

Item	Specification
Model	AI845
Order Code	3BSE023675R1
Product Type	8-channel analog input module, S800 I/O series
Input Channels	8 unipolar single-ended channels
Supported Signals	4–20 mA, 0–20 mA, 1–5 V DC, 0–5 V DC
ADC Resolution	12 bit
Basic Accuracy (25℃)	±0.1% full scale
Input Impedance	250 Ω (current input), ≥10 MΩ (voltage input)
Isolation Mode	Group isolation (8 channels to ground)
Rated Insulation Voltage	50 Vrms, dielectric test 500 V AC / 1 min
HART Function	HART pass-through communication supported
Redundancy Support	Single or 1:1 redundant with TU844 / TU845 terminal unit
Transmitter Supply	Channel-wise current limited 24 VDC power output
Over-range Detection	-12.5% ~ +15% for 4–20mA / 1–5V; 0 ~ +15% for 0–20mA / 0–5V
Module Update Cycle	Min 10 ms
Power Dissipation	3.5 W typical
Module Bus Current	100 mA (+5V), 50 mA (+24V)
Diagnostic Indicators	Run, Fault, Warning LED on front panel
Max Field Cable Length	600 m
Operating Temperature	-40 ℃ ~ +70 ℃
Storage Temperature	-40 ℃ ~ +85 ℃
Relative Humidity	5% ~ 95% non-condensing
Dimension (H×W×D)	119 mm × 45 mm × 102 mm
Net Weight	0.23 kg
Protection Class	IP20 (cabinet installation only)
Certifications	CE, UL, RoHS compliant