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Analogue Baratron® Vacuum Gauges  •  Unheated or Heated Versions  •  Full Scale Range 1,000 – 0.1 mbar

Type 722B Unheated Gauge
  • Smaller, lower-cost manometer
  • Measurement ranges (Full scale) 1,000, 500, 250, 100, 50, 30, 20, 10, 2 and 1 mbar
  • Signal output of 0-10 VDC or 0-5 VDC
  • 1/4″ VCR, 1/2″ tube, 8VCR F, Mini-CF, DN16KF flange options
  • Drop in replacement for earlier Baratron models
  • Full Scale Range as low as 1 Torr capacitance manometers
  • High accuracy over a wide operating temperature range
  • Corrosion resistant — all-metal, all- welded construction exposes only Inconel and stainless steel to the media
Type 727A Heated Absolute Gauge
  • Smallest Baratron® heated vacuum gauge available
  • Easily mounts inside process systems and gas cabinets
  • Operating temperature of 45°C prevents deposition of process gases and by-products that cause drift
  • Measurement ranges (Full scale) 1,000, 500, 250, 100, 50, 30, 20, 10, 2 and 1 mbar
  • 1/4″ VCR, 1/2″ tube, 8VCR F, Mini-CF, DN16KF flange options
  • Typical accuracy of 0.50% of Reading gives accurate vacuum measurement at low end of pressure range
  • Output Signal 0-10 VDC analog into > 10K ohm load
  • Analog output interfaces with most control systems
a-Baratron® AA01A Unheated Absolute Gauge
  • All products are specified in percent of reading for best accuracy and improved process yield
  • Measurement ranges (Full scale) 1,000, 500, 100, 20, 10, 2, 1, 0.25 and 0.1 mbar
  • 1/4″ VCR, 1/2″ tube, 8VCR F, Mini-CF, DN16KF flange options
  • Inconel® and Incoloy® nickel alloy construction of basic sensor operates without damage in virtually any chemical environment, including halogens, deionized water and steam, and ozone
  • Direct measurement of chamber total pressure independent of gas type
  • High over-pressure limit ensures reliability from occasional system mishaps
  • Best-available long-term output stability ensures state-of-the-art process repeatability in nearly any application
  • Push button zeroing
  • CE and RoHS compliant
a-Baratron® AA02A Heated Absolute Gauge
  • All-digital architecture and improved thermal management provides better long-term stability, improved accuracy, and increased reliability
  • Sensor temperatures of 45°, 80°, or 100°C
  • Fully welded sensor built entirely from Inconel® and Incoloy® nickel alloys for best-available corrosion resistance; uses no intermediate brazing or joining materials
  • Full Scale measurement ranges from 0.1 Torr (13.3 Pa) to 1000 Torr (133.3 kPa)
  • Measurement ranges (Full scale) 1,000, 500, 100, 20, 10, 2, 1, 0.25 and 0.1 mbar
  • 1/4″ VCR, 1/2″ tube, 8VCR F, Mini-CF, DN16KF flange options
  • Pushbutton zero permits adjustment of zero position up to 20% of product’s Full Scale range
  • Operates on ±15 VDC or +24 VDC input voltage, and provides 0 – 10 VDC analog serial output that are linear with pressure
  • Standard or MKS’ patented Etch sensor for use in processes with condensable byproducts
  • CE and RoHS compliant
  • 100% backwards-compatible with previous MKS 127, 128, 627, 628, E27, & E28 analog Baratron® manometers