ABB CTI 21-P 3BDH000741R1 Temperature Input 16/ 32 Inputs
ABB CTI 21-P 3BDH000741R1 Temperature Input 16/ 32 Inputs
Model: CTI 21-P Ex
Order Code: 3BDH000741R1
Input Channels:
32 analog/temperature inputs (configurable in 2-conductor mode)
16 temperature inputs (configurable in 3/4-conductor mode) 67
Sensor Compatibility:
Freely configurable for NTC/PTC sensors or linear voltage measurement (0–6 V)
Types: U, L, T, J, E, K, R, S, B, N
Range: -50°C to +1820°C (e.g., K-type: -50°C to +1372°C; B-type: +50°C to +1820°C) 67
Pt100 (2/3/4-wire): -200°C to +850°C (DIN IEC 751)
Ni100 (2/3/4-wire): -60°C to +250°C (DIN 43760)
Resistance Thermometers:
Thermocouples:
Voltage/Resistance Inputs:
Measurement Accuracy:
±0.1% of measurement range end value
Temperature drift: ±0.1% per 10K temperature change 6
Input Characteristics:
Input Resistance: 10 MΩ (voltage inputs)
Excitation Current: 1.0 mA ±1.7% (software-corrected for resistance sensors) 6
Isolation & Safety:
Overvoltage protection up to 240 Vrms
Compliant with EEx ib IIC standards for hazardous areas 67
Channel-to-channel isolation via relay multiplexer
Central isolation through opto-coupler
Galvanic Isolation:
Protection:
Signal Processing:
16-bit A/D Converter for high-resolution measurements
Line Resistance Compensation: Automatic adjustment for long sensor cables
Cold Junction Compensation: Integrated for thermocouples 7
Redundancy Support: Module supports redundant configurations for critical applications.
Diagnostics: Real-time monitoring for line breaks, sensor faults, and module health.
Flexibility:
Linearization of non-standard sensor characteristics.
Configurable damping for noise suppression (50/60 Hz).
Environmental Robustness:
Operating Temperature: -40°C to +85°C
Designed for industrial environments (vibration, dust, humidity resistant) 67
Standards: DIN IEC 751, DIN 43760, DIN EN 60584-1
Hazardous Area Certification: EEx ib IIC (suitable for Zone 2 installations)
EMC Compliance: Meets European EMC Directive requirements 613
Industrial process control systems
Power generation monitoring
Hazardous area installations (e.g., oil & gas, chemical plants)
Redundant temperature measurement in critical machinery
Delivery:
Warranty:
All our products are covered by our own warranty.
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