ABB P72140-4-0788740 CTI21｜High Precision Temperature Input Module｜

Specification
Multi channel temperature measurement channel
32 channel two-wire analog/temperature input;
16 compatible three wire/four wire heating resistors (RTDs);
Support sensor types
Thermal resistance: Pt100, Ni100; Temperature measurement range -200 ℃~+850 ℃
Various standard thermocouples (K, S, B, E, J, T, R, N)
High precision signal processing
16 bit high-precision A/D analog-to-digital conversion;
Built in cold end compensation, automatic wire resistance compensation, and signal linearization;
Multi level electrical isolation
Global optocoupler total isolation;
Independent isolation is achieved between channels through relay multiplexing, which is resistant to strong on-site interference;
Redundancy and self diagnosis
Support module redundancy hot backup;
Real time self check for broken wires, short circuits, and module faults, and upload fault codes to the upper DCS.
Parameter
Power supply: DC24V, maximum power consumption 12W
Protection level: IP20 (installed inside the control cabinet)
Working temperature: -20 ℃~+60 ℃; Storage -40 ℃~+70 ℃
Explosion proof version: CTI21 Ex is the explosion-proof version of this model, which meets the EEx ib IIC explosion-proof standard and can be used in chemical explosion-proof areas