Inficon MPG401 Operating Manual

Inficon MPG401 Operating Manual

Inverted magnetron pirani gauge

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Operating Manual
Inverted Magnetron Pirani Gauge
MPG400
MPG401
tina48e1-c
(2017-10)
1

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Summarization of Contents

Product Identification and Usage
Product Identification Details
Specifies information from the product nameplate for communication with INFICON.
Intended Use of Gauges
Describes the application of MPG400 and MPG401 gauges for vacuum measurement.
Functional Principle Overview
Explains the combined operation of Pirani and cold cathode systems for vacuum measurement.
Safety Information and Precautions
Symbols, Qualifications, and General Safety
Explains warning symbols, personnel qualifications, and provides general safety guidelines and magnetic field warnings.
Liability and Warranty Terms
Outlines INFICON's liability and warranty conditions, voided by improper product use.
Technical Specifications and Setup
Adjustment and Calibration Parameters
Details settings for and potentiometers for pressure calibration.
Electrical Connection Details
Describes sensor cable, line length, operating voltage, and current specifications.
Grounding and Common Connections
Explains grounding concepts and common connections for supply and signal lines.
Vacuum Contact Materials
Lists materials used in vacuum contact for MPG400 and MPG401 gauges.
Mounting and Environmental Specifications
Specifies mounting orientation, volume, pressure limits, temperature, humidity, and protection ratings.
Installation Procedures
Vacuum Connection Guidelines
Details requirements for connecting the gauge to a vacuum system, including overpressure warnings.
Magnet Unit Removal for CF Flanges
Explains the procedure for removing the magnet unit from gauges with CF flanges.
Electrical Connection Methods
Describes connecting the sensor cable to the gauge and control devices.
Operation and Measurement
Measurement Principle and Behavior
Explains the combined operation of Pirani and cold cathode systems for vacuum measurement.
Maintenance and Cleaning
Gauge Adjustment and Readjustment
Details the factory calibration and how to readjust the Pirani measuring circuit.
MPG400 Cleaning and Part Replacement
Outlines steps for disassembling, cleaning, and reassembling the MPG400 gauge.
MPG401 Cleaning and Part Replacement
Outlines steps for disassembling, cleaning, and reassembling the MPG401 gauge.
Appendices: Technical Data
Measuring Signal to Pressure Conversion
Presents formulas, curves, and tables for converting signal to pressure.
Gas Type Dependence Analysis
Shows how different gas types affect pressure indication and provides conversion factors.
ETL Compliance Certification
Confirms the products meet UL and CAN/CSA safety standards.

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