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IS230TNVBH2A, REV B - Turbine Nano-Volt Board Assembly Module is available in stock which ships the same day.
IS230TNVBH2A, REV B - Turbine Nano-Volt Board Assembly Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: IS230TNVBH2A, Rev B
Revision: REV B
Manufacturer: General Electric
Series: Mark VIe Speedtronic
Functional Designation: Turbine Nano-Volt Board Assembly (TNVB)
Assembly Breakdown: Consists of 1x IS220PTNVH1A/B Processor Pack and 1x IS200STNVH2A Simplex Terminal Board
Signal Type: Low-level analog inputs (Thermocouples, millivolt, and microvolt sensors)
A/D Resolution: High-resolution multi-channel analog-to-digital conversion layer
Interface Topology: Dual RJ45 Ethernet Ports (IONet), 1x High-Density Pack Connector, 48-Position Screw Terminal Blocks
Power Supply Input: Nominal 28.0 VDC (Range: 18.0 to 32.0 VDC)
Operating Temperature: -30 to 65 Degrees Celsius
Availability: In Stock
FUNCTIONAL DESCRIPTION FOR IS230TNVBH2A Rev B:
The IS230TNVBH2A, REV B is a Turbine Nano-Volt Board Assembly Module designed and manufactured for General Electric's Mark VIe Speedtronic control framework. Positioned as a dedicated low-signal interface, this assembly is purpose-built to acquire, filter, and digitize extreme low-voltage analog telemetry. It operates as the critical gateway for sensitive turbine sensors, such as high-accuracy thermocouples and specialized thermal sensors, where millivolt or microvolt deviations indicate significant thermodynamic changes.
INTEGRATED FACTORY ASSEMBLY
The H2A variant functions as a complete factory assembly that tightly couples localized processing power with a rugged field termination interface. The IS220PTNV processor pack sits directly atop the IS200STNV compact terminal board. Electrical signals and control logic pass seamlessly between the field terminal strip and the microprocessor through a high-density multi-pin connector, secured mechanically by integrated threaded studs to withstand industrial vibrations.
HIGH-RESOLUTION AMBIENT COLD-JUNCTION COMPENSATION
For exact thermocouple temperature cross-referencing, the underlying STNV board incorporates localized Cold-Junction Compensation (CJC) sensors. The hardware reads the temperature at the physical terminal block terminal points, allowing the processor pack to apply dynamic mathematical corrections to the incoming nano-volt signals. This eliminates thermal gradient errors induced by ambient cabinet fluctuations, ensuring absolute stability for critical exhaust gas temperature (EGT) loops.
ADVANCED NOISE REJECTION & CALIBRATION
Operating in proximity to high-power turbine equipment exposes low-level signals to massive electromagnetic interference (EMI). The IS230TNVBH2A features advanced hardware filtering, instrumentation amplifiers, and group isolation architecture. The onboard 16-bit A/D converters oversample the incoming channels, filtering out 50/60 Hz line hum and high-frequency noise spikes before routing the data to the central application layer.
DETERMINISTIC DATA TRANSMISSION OVER IONET
Telemetry processed by the internal microprocessor is packaged into real-time, deterministic data frames and broadcast to the primary controllers via dual-redundant 10/100 Base-TX RJ45 ports running the proprietary IONet protocol. Both network paths process the signals simultaneously. If one network link drops or experiences packet degradation, the alternative channel maintains the data stream with zero control loop latency.
WHY BUY FROM WOC:
World of Controls is a specialized global authority in the lifecycle extension of GE Mark VIe ecosystems, providing the IS230TNVBH2A, REV B in both UNUSED and REBUILT conditions to eliminate operational latency. Our quality-assurance protocol involves multi-channel low-level microvolt signal injection testing, precision CJC calibration verification, dual-port IONet routing validation, and strict thermal stress testing. By partnering with WOC, you secure hardware for peak performance, reinforced by 24/7 technical consultation and accelerated global logistics.
What is GE IS230TNVBH2A, REV B?
The IS230TNVBH2A, REV B is a Turbine Nano-Volt Board Assembly (TNVB) within General Electric's Mark VIe system. It is designed to measure and digitize highly sensitive, low-level analog inputs such as millivolt and thermocouple signals from critical turbine instrumentation.
Why does this board require Cold-Junction Compensation (CJC)?
Because thermocouple signals are generated based on the relative temperature delta between the hot tip and the terminal block, the board utilizes internal CJC temperature sensors to measure the exact terminal temperature, allowing the system to accurately calculate absolute field temperatures.
Can this unit be swapped while the control system is powered?
Yes, the module features built-in soft-start and inrush-limiting circuits that safely control power spikes upon installation, making it hot-swappable during active turbine runtimes.
What is the benefit of the dual IONet ports on the processor pack?
The dual RJ45 ports provide full network infrastructure redundancy. Both links transfer data simultaneously, ensuring that if one cable or network switch fails, the control signals flow uninterrupted through the remaining link
