ABB AI830A
Product Description
The ABB AI830A is an analog input module designed for resistive temperature detector (RTD) applications. It is part of the S800 I/O series, which is a distributed modular process I/O system that can communicate with master controllers via standard fieldbuses6. This module is suitable for use with various process controllers from ABB and other suppliers due to its wide connectivity6.
The AI830A has 8 channels for measuring temperature with resistive elements (RTDs) using 3 – wire connections1. It supports RTD types such as PT100, CU10, NI100, and NI120, as well as resistive sensors1. Linearization and conversion of the measured temperature to centigrade or Fahrenheit are performed on the module1. Each channel can be individually configured, and the mainsfreq parameter is used to set the mains frequency filter cycle time, providing a notch filter at the specified frequency (50 Hz or 60 Hz)1.
Product Parameters1
- Input Signal Type: 3 – wire RTD (PT100, CU10, NI100, NI120, and resistive potentiometer).
- Resolution: 14 – bit.
- Error: Dependent on the field cable resistance, with the formula \(R_{err}=R\times(0.005+\Delta R/100)\), \(T_{err}^{\circ}C = R_{err}/(R_{0}\times TCR)\), \(T_{err}^{\circ}F=T_{err}^{\circ}C\times1.8\).
- Temperature Drift: Refer to the table in S800 modules and termination units document (3BSE020924 – xxx).
- Update Cycle Time: \(150 + 95\times(number\ of\ active\ channels)\) ms.
- CMRR (Common – Mode Rejection Ratio): >120 dB (at 10ω load) for 50 Hz and 60 Hz.
- NMRR (Normal – Mode Rejection Ratio): >60 dB for 50 Hz and 60 Hz.
- Rated Insulation Voltage: 50 V.
- Dielectric Test Voltage: 500 V a.c.
- Power Dissipation: 1.6 W.
- Current Consumption: +5 V module bus: 70 mA; +24 V module bus: 50 mA; +24 V external: 0 mA.
Product Specifications1
- Electrical Safety: Complies with EN 61010 – 1, UL 61010 – 1, EN 61010 – 2 – 201, and UL 61010 – 2 – 201.
- Hazardous Location: Class 1, Division 2 CULus, Class 1, Zone 2 CULus, ATEX Zone 2.
- Marine Certification: ABS, BV, DNV, LR.
- Temperature, Operating: \(0^{\circ}C\) to \(+55^{\circ}C\) (\(+32^{\circ}F\) to \(+131^{\circ}F\)), with approvals issued for \(+5^{\circ}C\) to
