42B Baratron® Flow-through Gauge Vacuum/Pressure Switch
(10 - 26,000 Torr)

photo - 42A Baratron Flow-through, Absolute Pressure Switch (10-26,000 Torr)

The MKS Instruments 42B Flow-through Pressure Switch offers accurate and reliable protection for vacuum/pressure processes. Designed for applications where a DC signal output is not required, these switches provide relay outputs that are readily interfaced with alarms, valve actuators, computers, process controllers, load locks and other protection devices. The 42B is referenced to atmospheric pressure. The trip point on can be set to trip above, below (reverse calibration), or exactly at current atmospheric pressure.

Features & Benefits:

  • High reliability reduces downtime
  • Superb set point accuracy and repeatability
  • All-metal, all-welded construction exposing only stainless steel and Inconel® for corrosion resistance
  • Switch relay can be set to energize above or below set point for fail-safe operation
  • Low hysteresis improves set point accuracy

Applications:

The 42B Baratron® Gauge Pressure Switch provides precise control for a wide variety of production applications including semiconductor processing tools, high vacuum pumps, compressors, blowers, medical equipment and machine tools. The 41B is often used to ensure a loadlock pressure has equilibrated to local atmospheric pressure before opening the door.

Incoloy® and Iconel® are registered trademarks of Inco Alloys International.
VCR® is a registered trademark of Swagelok® Company.

Indicate desired trip point as a three-digit value in the comments section of the order form.

List pricing is available for registered users from the USA under "Configurations" (below). Register/log in here.

Configurations:

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Part NumberPressure Range full scaleFittingsInput VoltageRelay ModeConnectorPriceQTY
42B11TCH1AAXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B11TCH1AFXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B11TCH1BAXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B11TCH1BFXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B11TCH2AAXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B11TCH2AFXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B11TCH2BAXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B11TCH2BFXXX10 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B12TCH1AAXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B12TCH1AFXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B121TCH1BAXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B12TCH1BFXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B12TCH2AAXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B12TCH2AFXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B12TCH2BAXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B12TCH2BFXXX100 mmHg (Torr)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B11DCH1AAXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B11DCH1AFXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B11DCH1BAXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B11DCH1BFXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B11DCH2AAXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B11DCH2AFXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B11DCH2BAXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B11DCH2BFXXX10 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B12DCH1AAXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B12DCH1AFXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B12DCH1BAXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B12DCH1BFXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male10-20 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only
42B12DCH2AAXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set point9-pin Type "D" maleQuote Only
42B12DCH2AFXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure above the set pointflying leads - 2 ft shielded cableQuote Only
42B12DCH2BAXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set point9-pin Type "D" maleQuote Only
42B12DCH2BFXXX100 Torr (Reverse Calibration Only)Swagelok® 4 VCR® fixed male20-30 VDCEnergizes with pressure below the set pointflying leads - 2 ft shielded cableQuote Only

Need help?

Contact an Applications Specialist by sending an email to MKS Instruments, or call 978-645-5500.