ABB HAI805 8-Channel HART Analog Input Module

Product Description

HAI805 is ABB S800 I/O series 8-channel 4–20mA analog input module with HART pass-through, used for AC800M and System 800xA DCS field signal acquisition.

Each channel supports HART protocol transparent transmission, reads field instrument digital parameters while collecting analog current signals. Single-ended input with channel-to-channel isolation, 16-bit high resolution, conformal coated PCB, standard DIN rail mounting with TU810 base, common spare for power, chemical and water treatment control cabinets.

Technical Specifications

Model: HAI805, Brand: ABB, Origin: Switzerland

Channel Count: 8 single-ended analog input channels

Input Signal: 4–20mA current loop

HART Support: HART protocol pass-through on every channel

Resolution: 16-bit A/D conversion

Accuracy: ±0.1% full scale

Channel Isolation: Channel-to-channel galvanic isolation, basic insulation

Update Time: 100ms per channel group

Power Supply: Powered via S800 I/O base module

Power Consumption: Approx. 1.2W

Operating Temperature: -20℃ ~ +60℃ full load

Storage Temperature: -40℃ ~ +85℃

Humidity: 5%–95% non-condensing, conformal coated PCB

Protection Class: IP20 cabinet installation only

Mounting: DIN rail mounting with TU810 / TU811 base unit

Net Weight: Approx. 0.15kg

Certifications: CE, UL, ATEX Zone 2, SIL2 functional safety

Key Features

8-channel 4–20mA input with full HART pass-through, reads instrument diagnostics and multi-variable data without extra HART gateway.

16-bit high resolution with ±0.1% accuracy for precise process variable measurement.

Channel-to-channel galvanic isolation prevents ground loop drift and cross-channel interference.

Compatible with all standard HART field transmitters for pressure, temperature, flow and level instruments.

Front panel status LEDs indicate channel communication and fault state for quick on-site troubleshooting.

Hot-swap supported with TU810 base, module replacement without system shutdown for minimum downtime.

SIL2 functional safety certified, suitable for safety-related process control loops.

Compact S800 standard form factor, flexible I/O rack expansion for AC800M control systems.