TRICONEX 3703E High Precision Isolated TMR Analog Input Module
Product Description
3703E is SIL3-certified TMR isolated analog input card dedicated for high-speed bipolar ±10VDC signal acquisition in Tricon SIS platform, equipped with 4 fully isolated differential channels, ultra-fast 500Hz sampling rate, customized for fast dynamic parameters such as turbine vibration, rotational speed and rapid pressure fluctuation monitoring in safety interlock loops. It adopts triple modular redundant voting design with full channel isolation to eliminate ground loop interference for harsh industrial field.
Description
Model Interpretation
3703E: 4-channel isolated high-speed AI, bipolar -10~+10VDC input, enhanced isolation & high sampling variantP/N:3703ECompatibility: Tricon V9~V12 rack(8110/8111/8112/8115/8116), hot-swappableDifference vs 3700/3721: Only 4 high-precision isolated channels, 500Hz fast sampling vs regular 10/55ms update of 37XX series, exclusive ±10V bipolar range for dynamic signals.
Technical Parameters
Electrical Specification
Input Type: 4-channel fully isolated differential DC voltageSignal Range: -10VDC ~ +10VDC bipolar fixed rangeSampling Rate: 500Hz per channel (2ms single channel refresh)Resolution: 16-bit high precision A/D conversionBasic Accuracy: ≤±0.05%FS at 0~60℃Input Impedance: ≥100MΩ DCIsolation Grade: 1500VAC field-to-backplane galvanic isolation, channel-to-channel independent isolationOvervoltage Protection: Continuous withstand 150VDC/115VAC surgeBackplane Power: 24VDC, typical consumption ≤2.5W
Safety & Redundancy
Architecture: TMR triple modular redundancy, 2-out-of-3 fault votingCertification: IEC61508 SIL3, TÜV, UL, CE, ATEX, FM approvalDiagnostics: Per-channel continuous open/short/trip & TMR deviation detection, fault coverage＞99.9%SOE Time Stamp: ≤20ms event captureMTBF: ≥180000 hours
Mechanical & Environment
Form Factor: Standard 3U single slot Tricon rack moduleDimension(W×H×D):114×30×185mmNet Weight:≈0.95kgFront Panel LED: PASS, FAULT, ACTIVE, four independent channel status indicatorsOperating Temp:-40℃~+70℃, Storage:-40℃~+85℃Humidity:5%~95%RH non-condensing
Core Functions
High-speed dynamic analog signal collection for fast changing process variables, ideal for vibration, rotation speed, rapid pressure pulse signal pickupFull independent channel isolation prevents cross-channel interference and ground potential drift damageTMR redundant circuit ensures single component failure without interrupting safety measurement loopOnline hot-plug maintenance without SIS system shutdown, channel independent fault locatingCompatible with TriStation1131 software for range configuration, fault calibration and real-time data monitoring
Applications
Power plant: Gas/steam turbine ESD protection, shaft vibration, rotating speed safety monitoringOil & gas refinery: Compressor HIPPS interlock, rapid surge pressure monitoringChemical industry: Reactor fast fluctuation pressure/temperature safety interlockSIS upgrade project: Replace low-speed regular AI for high dynamic precision measurement points
Contrast Brief
3703E(4Ch,-10~+10V,500Hz isolate) |3721(32Ch,±5/0~5V,10ms)|3700(32Ch,0~5V,55ms)Small channel high precision fast card |High density general bipolar AI |Standard unipolar low-speed AI
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