GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module - Image 1
GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module - Image 2
GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module - Image 3
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GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module
GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module - Image 2
GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module - Image 3
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GE VMIVME-7750-746000 VME64x Single-Board Computer (SBC)
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GE TKMA30800WL
GE TKMA30800WL

GE VMVIVME-3125 12-Bit, 32-Channel Scanning A/D Converter Module

Product Introduction
The GE VMVIVME-3125 is a high-performance analog-to-digital (A/D) converter module designed for embedded control and data acquisition systems. It integrates 32 single-ended or 16 differential input channels into a single 6U VME card, enabling high-density analog signal processing in industrial environments. The module supports programmable gain and range settings via jumpers, allowing seamless switching between sensors like ±10 V accelerometers and 0-25 mA liquid-level transmitters without firmware modifications. Its dual-port memory architecture eliminates host CPU wait states by allowing simultaneous data scanning and retrieval.

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Description

Technical Specifications

  • Resolution: 12-bit (0.024% accuracy)
  • Channels: 32 single-ended or 16 differential inputs
  • Sampling Rate: 40 kHz aggregate (1.25 kHz per channel in cyclic mode)
  • Input Ranges: ±50 mV to ±10 V, 0-25 mA
  • Gain Settings: ×1, ×10, ×100 (jumper-selectable)
  • Isolation: 250 V RMS channel-to-bus isolation
  • Overvoltage Protection: ±35 V surge tolerance
  • Data Encoding: Offset binary or two’s complement (software-selectable)
  • Bus Interface: VME64 (A16/D16)
  • Power Requirements: +5 V @ 1.2 A, ±12 V @ 50 mA
  • Operating Temperature: 0°C to +70°C
  • Form Factor: 6U VME, 160 mm depth

Functional Characteristics

  • High Channel Density: Integrates 32 inputs into one card, freeing slots for additional I/O or compute modules.
  • Flexible Signal Conditioning: Programmable gain eliminates external amplifiers for signals like 50 mV strain gauges or 10 V tachometers.
  • Real-Time Performance: 40 kHz throughput supports applications like turbine blade vibration analysis or hydraulic actuator monitoring.
  • Industrial Robustness: Optical isolation and overvoltage protection ensure reliability in harsh environments with ground loops or voltage spikes.
  • Ease of Use: Jumper-based configuration reduces setup time, while dual-port memory simplifies host integration.

Application Scenarios

  • Renewable Energy: Monitors thermal hotspots in solar receivers by scanning 1,500 thermocouples at 40 kHz in Nevada’s solar test facilities.
  • Aerospace: Captures 0.05 Pa pressure variations in 200 m/s wind tunnels via differential sensors.
  • Industrial Automation: Tracks pulp consistency in paper mills or density in mining slurries using 4-20 mA transducers.
  • Battery Research: Records 12-bit voltage data from 0 V to 5 V during battery cycling tests.
  • Structural Health Monitoring: Detects vibrations in turbine blades or hydraulic systems with 1.25 kHz per-channel sampling.

Compatibility

  • Companion Modules:
    • VMVIVME-3112: 16-channel, 16-bit alternative for higher-resolution strain/pressure applications.
    • VMVIVME-4140: 4-channel, 16-bit analog output module for closed-loop control.
    • VMVME-7740: Single-board Pentium controller for hosting A/D drivers and DMA operations.
  • Software Support: Compatible with VxWorks, Linux RT, and other real-time operating systems for deterministic task scheduling.
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