INFICON 0190‑51546

Product Name: Vacuum Gauge Controller PCB Assembly Product Description: This is a printed circuit board controller unit for vacuum measurement systems, REV03 denotes hardware revision 03. It processes sensor signals from vacuum transducers, converts physical vacuum pressure values into digital data, and supports host‑system communication for vacuum process monitoring. It is widely deployed inside semiconductor process vacuum equipment.

Category:
Description

Technical Specifications

  • Power Supply: 12‑24 VDC
  • Communication Interface: RS‑485, Modbus RTU
  • Accuracy: ±1 % of reading
  • Response Time: <5 seconds
  • Operating Temperature: ‑20 °C ~ +50 °C
  • Certifications: CE, UL, CSA Functional Features
  • Real‑time vacuum pressure signal acquisition and digital conversion
  • Multi‑sensor signal conditioning circuit integrated on PCB
  • Supports remote data reading and parameter configuration via Modbus RTU
  • Built‑in over‑voltage and reverse‑polarity protection circuit
  • Compact form factor for internal equipment rack installation Application Scenarios
  • Semiconductor manufacturing vacuum chamber monitoring
  • Vacuum coating equipment
  • Industrial leak‑detection stations
  • Research laboratory vacuum test benches Performance Parameters
  • Signal sampling rate: configurable
  • Isolation: electrical isolation between field sensor side and communication side
  • Revision mark: REV03 hardware version identifier printed on silkscreen Material Composition
  • Base substrate: FR‑4 printed circuit board
  • Passive components: multilayer ceramic capacitors, metal‑film resistors
  • Heat dissipation component: aluminum alloy heat sink for power devices
  • Connector housing: high‑temperature nylon plastic Structural Characteristics
  • Card‑type plug‑in board structure
  • Vertical mounting inside equipment chassis
  • Terminal block for field wiring at edge of PCB
  • Surface‑mount and through‑hole mixed component layout Working Principle: Analog vacuum sensor signals are filtered and amplified by on‑board conditioning circuits, then digitized by ADC chips. The onboard microcontroller processes measured values and transmits data to upper‑level controllers through RS‑485 Modbus RTU interface. Installation Requirements
  • Mount vertically inside well‑ventilated equipment cabinet
  • Maintain clearance around aluminum heat sink for thermal dissipation
  • Route sensor wiring separately from high‑power noise‑generating cables
  • Torque terminal block screws per manufacturer specification Usage Notes
  • Operate only within 12‑24 VDC input range; overvoltage will destroy circuit traces
  • Avoid mechanical shock to PCB assembly during installation
  • Keep board surface free from process dust, chemical vapors and condensation
  • Match communication baud rate and Modbus address with host system
  • Observe ESD protection rules when handling exposed circuit board
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