--- type: product schema_version: 1 stock_number: "99645-1" canonical_url: "https://www.artisantg.com/99645-1/MKS-Instruments-347" json_url: "https://www.artisantg.com/99645-1/MKS-Instruments-347.json" generated_at: "2026-11-07T12:52:57.513Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # MKS Instruments / Granville-Phillips 347 Stabil-Ion Pressure and Vacuum Measurement Gauge Controller _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: MKS Instruments - Model: 347 - Condition: Used and in Excellent Condition - Price: $1,295.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 4 lb, estimated - Shipping dimensions: 12X9X6 in, estimated ## Categories - Industrial Systems Equipment > PLCs and Controllers > Controllers (primary) - Industrial Systems Equipment > Sensors and Transducers > Pressure Sensors ## Function Provides continuous pressure measurement and control for ion gauge tubes in high vacuum systems. Processes ion current signals to calculate pressure readings from 10^-11 to 10^-3 Torr. Features programmable setpoint relays for process control, analog output signals for data logging, and RS-232/RS-485 digital interfaces. Incorporates emission current regulation, degas functionality, and overpressure protection. Supports Bayard-Alpert and other ion gauge configurations. Commonly applied in semiconductor processing, surface analysis, particle accelerators, and space simulation chambers requiring precise vacuum monitoring and automated pressure-based process sequencing. ## Images - - - -