Triconex
0102030405
Triconex 3721 TMR Analog Input Modules
Key SpecificationsVOGI
Voltage: 0 to 5VDC or -5 to +5VDC, + 6%.
No. of Input Points: 32differential,DC-coupled
Input Update Rate: 10ms.
Accuracy: < 0.15% of FSR,from 0°Cto 60°C
Input Resistance(load): 10MΩ (DC),min
Power-Off Resistance: 140KΩ (DC),typical
Common Mode Rejection : - 85dB (DC-100Hz)
Common Mode Range: -12V to +12V peak
Leg-to-Leg Isolation: 420KΩ, typical
Input Overrange Protection : 150 VDC/115 VAC continuous
Current Range: 0-20mA with 250Ωshunt resistor
Key FeaturesVOGI
High-Performance Analog Input: Utilizes differential analog input to suppress common-mode interference, ensuring accurate signal acquisition in noisy industrial environments .Features 32 differential input channels, enabling simultaneous monitoring of multiple process variables.
Robust Safety and Reliability: Triconex 3721 is designed with TMR architecture to enhance fault tolerance and system availability, critical for safety instrumented systems (SIS),Provides 1,500 Vrms isolation voltage between channels and systems, preventing electrical interference and ensuring safe operation.
Technical Precision: Delivers <0.15% full-scale range (FSR) accuracy across the operating temperature range, ensuring reliable data for decision-making,Achieves -85 dB rejection (DC to 100 Hz), minimizing noise impact on signal integrity.
Application Flexibility: Triconex 3721 converts analog signals from sensors into digital data for real-time process control, safety interlocks, and critical parameter monitoring,Supports DIN rail mounting and integrates seamlessly with other Triconex SIS components for scalable system configurations.
Freight Estimation(Part Of The Area)VOGI
|
Destination |
Freight |
|
Middle East |
$75 |
|
Southeast Asia |
$22 |
|
South Asia |
$102 |
|
South Africa |
$81 |
|
Europe and USA |
$45 |
|
Russia |
$92 |
APPLICATIONVOGI
Process Safety in Oil and Gas: Triconex 3721 monitors field devices (e.g., pressure transmitters, gas detectors) in upstream and midstream operations. Upon detecting overpressure or hydrocarbon leaks, it triggers safety actions like valve closure or compressor shutdown via the TMR controller, ensuring compliance with SIL 2/3 requirements.
Power Generation Turbine Protection: Integrated into turbine control systems, it acquires vibration and over-speed sensor data. The triple-channel architecture ensures reliable trip logic execution even with single-channel faults, preventing catastrophic turbine failures.
Fire & Gas Mitigation Systems: Triconex 3721 interfaces with flame detectors and H2S sensors in refineries. By voting on redundant input signals, it minimizes nuisance alarms while guaranteeing fail-safe actuation of deluge systems and emergency ventilation.
Critical Machinery Interlocks: In rotating equipment applications, it verifies permissive conditions through 2-out-of-3 voting, enabling safe start-up sequences and preventing mechanical damage during abnormal operations.