ABB AI893 3BSC690141R1 Analog Input Module

General Information

• Article Number: 3BSC690141R1

• Type: Analog Input

• Signal Specification: RTD or Thermocouple (TC)

• Number of Channels: 8

• Signal Type: Differential

• HART Support: No

• Sequence of Events (SOE): No

• Redundancy: No

• High Integrity: No

• Intrinsic Safety: Yes

• Mechanics: S800 Series

Detailed Technical Data

• Resolution: 15-bit + sign

• Input Impedance: > 10 MΩ

• Isolation: Groupwise isolated from ground

• Measurement Error:

• TC/mV: < 20 µV

• RTD (0–400 Ω): < 0.1 Ω

• RTD (0–4000 Ω): < 1 Ω

• Temperature Drift (per 10°C):

• TC/mV: < 20 µV

• RTD (0–400 Ω): < 0.1 Ω

• RTD (0–4000 Ω): < 1 Ω

• Update Cycle Time: (Number of active channels × 125 ms) + 125 ms

• Common Mode Voltage Input: ±5 V

• CMRR (50/60 Hz): > 100 dB

• NMRR (50/60 Hz): > 80 dB

• Rated Insulation Voltage: 50 V

• Dielectric Test Voltage: 500 V AC

• Power Dissipation: 0.5 W

• Current Consumption (from +5V Modulebus):

• Typical: 90 mA

• Maximum: < 125 mA

Compatibility

• Compatible MTUs: TU890, TU891

• Keying Code: BA

Mechanical Dimensions

• Width: 45 mm (1.77 in)

• Depth: 102 mm (4.01 in), 111 mm (4.37 in) including connector

• Height: 119 mm (4.7 in)

• Weight: 0.16 kg (0.35 lbs)

Summary

The ABB 3BSC690141R1 is an 8-channel analog input module designed for precise measurement of RTD or thermocouple signals in intrinsically safe environments. With high input impedance, excellent noise rejection, and robust isolation, it is ideal for industrial applications requiring high reliability and accuracy within the S800 I/O system.