ABB DSAI133A 3BSE018290R1 Analog Input Board

Real-time data monitoring in chemical, petroleum, metallurgy, and other industries (e.g., pipeline pressure, liquid level height);

Temperature and current signal acquisition and monitoring of generator sets;

Processing of temperature, humidity, and flow signals in central air conditioning systems;

Monitoring of water quality parameters (pH value, turbidity) in sewage treatment plants.

Number of Channels: 8 analog input channels, supporting differential or single-ended input modes;

Input Signal Types:

Sampling Accuracy: 16-bit ADC conversion, resolution up to 0.015%, linearity error ≤±0.1%;

Sampling Rate: Up to 100Hz per channel, supporting multi-channel synchronous sampling.

Power Supply: DC 24V (±10%), power consumption ≤3W;

Isolation Characteristics: Electrical isolation between channels (isolation voltage 500V AC), isolation between input and system power supply (isolation voltage 1500V AC), with strong anti-interference capability;

Wiring Method: Detachable terminal block (Phoenix terminal), supporting hot-swappable maintenance;

Status Indication: Independent LED indicators for each channel (power, fault, normal signal), facilitating on-site diagnosis.

Operating Temperature: -20°C to +60°C (natural cooling without fans);

Protection Level: IP20 (suitable for installation in control cabinets);

Anti-Interference Standard: Complies with EN 61000-6-2 industrial electromagnetic compatibility (EMC) requirements, resistant to vibration (5-500Hz, 2g).

Scenario: Real-time temperature collection in polymerization reactors, requiring multi-channel synchronous monitoring (8 Pt100 thermal resistors).

Solution: DSAI133A connects thermal resistors via shielded cables, configured in differential input mode, processes data through ABB AC 800M PLC, and supports temperature abnormality alarms (threshold ±1°C).

Effect: Temperature measurement error ≤0.5°C, sampling period 100ms, meeting process control accuracy requirements.

Scenario: Monitoring sewage pipeline flow (4-20mA signal from electromagnetic flowmeter), requiring resistance to electromagnetic interference.

Solution: The module uses single-ended input mode, paired with a metal shielded junction box, and communicates with the DCS system via a redundant bus.

Effect: Flow data transmission delay ≤5ms, no signal distortion during long-term operation, 50% reduction in maintenance.