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WWW.MKSINST.COM R740C, R750C BARATRON GENERAL PURPOSE CAPACITANCE MANOMETERS WITH TRIP RELAYS Today’s industrial manufacturing processes require stability, repeatability, and accuracy in measuring pressure and vacuum. MKS has applied its expertise in capacitance sensor design in the new R740C and R750C compact Baratron ® capacitance manometers that are designed for use in industrial, analytical, and electronic measurement applications. The products’ flexible design allow it to be used either for new processing systems, or for retrofits into existing processing systems. The R740C and R750C Baratrons are rugged, industrial-grade pressure and vacuum transducers that use MKS proprietary sensor and electronics designs for superior accuracy, repeatability, and long-term signal stability. All exposed sensor surfaces are made from Inconel ® or Incoloy® nickel alloys for exceptional resistance to corrosion from a wide variety of aggressive chemicals. The sensor is also fully welded, guaranteeing safety to equipment operators from accidental exposure to dangerous chemicals. This advanced sensor and its electronics are mounted in a rugged stainless steel enclosure that can withstand harsh environments, the two (2) independently-adjusted electromechanical trip relays allow the product to be used to directly control external components such as pumps, valves, and other equipment. The R740C product is referenced to atmospheric pressure, and thus offers Full Scale measurement ranges from 20 to 3000 PSIG (1.4 to 204 bar). The R750C is an absolute transducer (referenced to high vacuum), and thus offers Full Scale measurement ranges from 10 Torr (13 mbar) to 3000 PSIA (204 bar). The products have a standard linear 0-10 VDC analog output signal in addition to the trip relays. Features & Benefits

  • Self-contained sensor and signal conditioner in a compact and r ugged enclosure
  • All-welded Inconel® sensor construction allo ws for use with most corrosive media
  • Proven MKS capacitance technology yields a measurement resolution of 1 par t in 10,000
  • Linear 0-10 VDC analog output plus tw o (2) independently-adjusted tr ip relays
  • Overpressure limit of tw o times Full Scale or 45 psia (whiche ver is greater) with no deg radation in performance
  • Available with absolute (ref erenced to v acuum) or gage (referenced to atmosphere) calibr ations Pressure & Vacuum Measurement Solutions

Pressure Ranges R740C: 20 to 3000 PSI (1.4 to 204 bar) gauge, R750C:

10 Torr (13 mbar) to 3000 PSI (204 bar) absolute

Accuracy (includes non-linearity, hysteresis and ±1% of Reading non-repeatability) Repeatability ±0.1% of Reading Resolution (Analog Output) ±0.01% of Full Scale (FS) Ambient Operating Temperature 0°C to 50°C T emperature Effect Zero 0.02% of FS/°C Span 0.04% of Reading/°C Response Time 20 msec Maxim um Overpressure

45 PSI or 2x FS (whiche

ver is greater) Burst Pressure FS r anges of 1000 PSI or less

100 PSI or 10x FS (whiche

ver is greater) FS r anges of more than 1000 PSI 5x FS Internal V olume 4.7 cm3 Exposed Materials Inconel®, Incoloy®, and 316L stainless steel Input Voltage ±15 VDC (± 5%) @ 35 mA (max) Analog Output Signal 0-10 VDC into > 10 k W load Electrical Connector 15-pin D-subminiature Rela y Specifications (2) independently-adjusted DPDT contacts adjustab le between 0.5% and 100% of FS. Rela ys are UL listed and rated at 1.0 amps @ 30 VDC or 0.3 amps @ 30VAC. Relay setpoints and oper ating directions can be adjusted by customers from exterior of product. F actory Default Trip Relay Settings T rip Relay A energizes below 55% of Full Scale range, and Trip Relay B energizes abo ve 55% of Full Scale range. Custom relay settings available on special order; contact MKS Applications f or details and pricing. W eight 1.0 lbs (0.4 kg) Compliance CE Available Fittings 1/4'' (6.3 mm) OD tube , 4 VCR® male and female, 8 VCR female, 8 VCO® female, NPT*, NW16-KF, and 1.33'' (33.8 mm) OD CF* Figure 4 — R740C, R750C with external slide switches

Dimensional Drawing — Note: Unless otherwise specified, dimensions are nominal values in inches (mm referenced). 13T R750C CE R740C/R750C - 1/18 © 2010-2018 MKS Instruments, Inc. All rights reserved. Some Baratron® capacitance manometer products may not be exported to many end user countries without both US and local go vernment export licenses under ECCN 2B230. Specifications are subject to change without notice. mksinst™ is a trademark and Baratron ® is a registered trademark of MKS Instruments, Inc., Andover, MA. Inconel® and Incoloy® are registered trademarks of Inco Alloys International, Huntington, WV. VCR® and VCO® are registered trademarks of Swagelok Co., Willoughby, OH. Conflat® is a registered trademark of Varian Associates , Inc., Lexington, MA. *Available only on Full Scale ranges of 1000 Torr or less Not a vailable for 10 or 50 Torr Full Scale ranges *A vailable only for Full Scale ranges of 1000 psi or less G G Ordering Code Example: R750C13TCE2GG R740C/R750C Baratron Pressure Transducers Code Configuration Gage Single-ended Transducer R740C Absolute Single-ended Transducer R750C Pressure Ranges Gage (R740C models only) 20 psig 21P 50 psig 51P 100 psig 12P 200 psig 22P 250 psig RDP 500 psig 52P 1000 psig 13P 2000 psig 23P 3000 psig 33P Absolute (R750C models only) 10 mmHg 11T 20 mmHg 21T 50 mmHg 51T 100 mmHg 12T 500 mmHg 52T 1000 mmHg 13T 50 psia 51P 100 psia 12P 3000 psia 33P Fittings 1/2'' OD Tube* BA 1/4'' OD Weld Stub BB

4 VCR® Male CB

4 VCR

8 VCR

8 VCO® Female D A

1/4'' NPT F emale F A 1/4'' NPT Male FB 1/8'' NPT F emale FE 1/8'' NPT Male FF NW -16KF* GA 1.33'' OD Conflat®*** HA Input/Output ±15 VDC (±5%) input/0-10 VDC output Accur acy 1.0% Reading G T rip Point Setting Standard Setting (rela ys activate above trip points) G Optional Setting (rela ys activate below trip points) S MKS Instruments, Inc. Global Headquar ters

2 Tech Drive, Suite 201

Andover, MA 01810 Tel: 978.645.5500 Web: www.mksinst.com MKS Instruments, Inc. Pr essure & Vacuum Measurement Solutions Six Shattuck Road Andover, MA 01810 Tel: 978.975.2350