Compare Model Drawings, CAD & Specs Full Scale Range Fitting Type Analog Output Availability Price
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 100 psia, 0.125 in. NPT Male, 0-10 VDC, DB9
$915
3 Weeks
100 psia 0.125 in. NPT male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 100 psia, 0.125 in. NPT-M, 4-20 mA, DB9
100 psia 0.125 in. NPT male 4 - 20 mA
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 100 psia, 0.125 in. NPT Female, 0-10 VDC, DB9
$950
3 Weeks
100 psia 0.125 in. NPT female 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 100 psia, 0.125 in. NPT-F, 4-20 mA, DB9
$915
3 Weeks
100 psia 0.125 in. NPT female 4 - 20 mA
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 1000 psia, 0.125 in. NPT Male, 0-10 VDC, DB9
$915
3 Weeks
1000 psia 0.125 in. NPT male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 1000 psia, 0.125 in. NPT-M, 4-20 mA, DB9
$915
3 Weeks
1000 psia 0.125 in. NPT male 4 - 20 mA
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 1000 psia, 0.125 in. NPT Female, 0-10 VDC, DB9
$950
1000 psia 0.125 in. NPT female 0 - 10 VDC
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 1000 psia, 0.125 in. NPT-F, 4-20 mA, DB9
1000 psia 0.125 in. NPT female 4 - 20 mA
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 1000 Torr, 0.125 in. NPT Male, 0-10 VDC, DB9
$945
3 Weeks
1000 Torr 0.125 in. NPT male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 1000 Torr, 0.125 in. NPT-M, 4-20 mA, DB9
$945
3 Weeks
1000 Torr 0.125 in. NPT male 4 - 20 mA
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 1000 Torr, 0.125 in. NPT Female, 0-10 VDC, DB9
$1,000
3 Weeks
1000 Torr 0.125 in. NPT female 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 1000 Torr, 0.125 in. NPT-F, 4-20 mA, DB9
$945
3 Weeks
1000 Torr 0.125 in. NPT female 4 - 20 mA
3 Weeks
Absolute Pressure Transducer, 2000 psia, 4 VCR Female, 0-10 VDC, DB9
$915
3 Weeks
2000 psia 4 VCR female 0 - 10 VDC
3 Weeks
Absolute Pressure Transducer, 3000 psia, 4 VCR Female, 0-5 VDC, DB9
$915
3 Weeks
3000 psia 4 VCR female 0 - 5 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 3000 psia, 0.125 in. NPT Male, 0-10 VDC, DB9
$915
3 Weeks
3000 psia 0.125 in. NPT male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 3000 psia, 0.125 in. NPT-M, 4-20 mA, DB9
3000 psia 0.125 in. NPT male 4 - 20 mA
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 3000 psia, 0.125 in. NPT Female, 0-10 VDC, DB9
$950
3 Weeks
3000 psia 0.125 in. NPT female 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 3000 psia, 0.125 in. NPT-F, 4-20 mA, DB9
$915
3 Weeks
3000 psia 0.125 in. NPT female 4 - 20 mA
3 Weeks
Absolute Pressure Transducer, 3000 Torr, 4 VCR Male, 0-10 VDC, DB9
$915
3 Weeks
3000 Torr 4 VCR male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 50 psia, 4 VCR Female, 0-10 VDC, DB9
$915
3 Weeks
50 psia 4 VCR female 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 50 psia, 0.125 in. NPT Male, 0-10 VDC, DB9
$915
3 Weeks
50 psia 0.125 in. NPT male 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 50 psia, 0.125 in. NPT-M, 4-20 mA, DB9
$915
3 Weeks
50 psia 0.125 in. NPT male 4 - 20 mA
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transducer, 50 psia, 0.125 in. NPT Female, 0-10 VDC, DB9
$915
3 Weeks
50 psia 0.125 in. NPT female 0 - 10 VDC
3 Weeks
740C/750c baratron 20-3000 psia capacitance manometer
Absolute Pressure Transmitter, 50 psia, 0.125 in. NPT-F, 4-20 mA, DB9
50 psia 0.125 in. NPT female 4 - 20 mA

Product Options

Description
  740C/750c baratron 20-3000 psia capacitance manometer 750C Absolute Capacitance Manometer, High Pressure, 10 Torr to 3000 PSIA

Specifications

  • Type
    Single-End
  • Full Scale Pressure Ranges
    20 to 3000 psig (1.4 to 204 bar)
  • Accuracy
    ±1% of Reading
  • Resolution
    0.01% of Full Scale
  • Repeatability
    ±0.1% of Reading
  • Analog Output
    0-5 VDC, 0-10 VDC, or 4-20 mA
  • Zero Temperature Coefficient
    0.02% of Full Scale/°C
  • Span Temperature Coefficient
    0.04% of Reading/°C
  • Media
    Gas (for liquid contact MKS applications)
  • Volume
    0.3 cu. in.
  • Overpressure Limit
    45 psig or 2× Full Scale, whichever is greater
  • Burst Pressure
    Up to 1000 psi:100 psig or 10× Full Scale, whichever is greater
    Above 1000 psi:
  • Power Requirements
    +13 to 32 VDC @ 10 mA max.
  • Response Time
    20 msec
  • Weight
    0.5 lbs (0.2 kg)
  • Compliance
    Fully CE compliant to EMC Directive 2004/108/EC
    Fully compliant to Directive 2002-95-EC

Features

Baratron® Capacitance Manometer Technology

Capacitance manometers are electro-mechanical gauges that can measure both pressure and vacuum. The capacitance gauge translates a pressure-modulated movement in a thin diaphragm into an electrical signal proportional to the pressure. The pressure sensor is the thin diaphragm that is exposed to the pressure or vacuum being measured via the inlet tube. An electrode is mounted in the reference cavity behind the diaphragm. Pressure differences between the process and the reference cavity deflect the diaphragm slightly, changing the distance between it and the electrode. Variations in this distance produce variations in the capacitance between the diaphragm and the electrode creating an electrical signal that is proportional to the pressure change. Since differences in the capacitance signal are produced by physical changes within the manometer and not by changes in the gas properties, pressure measurements by the capacitance manometer are independent of the composition of the gas being measured.

Gas independent pressure measurement with a Baratron® capacitance manometer. Schematic shows the internal components and functional zones.

Percent of Reading Accuracy

Accuracy is specified as a percent of Reading, not Full Scale, as seen in some of the lower performance devices. Percent of Reading accuracy provides you with an even more accurate output signal in the lower scale of the pressure range, where it is needed most.

Inconel® Nickel Alloy Construction

The patented capacitance sensor is built entirely from Inconel® nickel alloys on its measurement side, which offers superior corrosion resistance over long periods of time. Inconel® construction also offers high overpressure tolerances that reduce errors due to line pressure spikes, and high burst pressure ratings that contribute to overall system safety.

Absolute Pressure Measurement

These Baratron® pressure transducers are referenced to vacuum for absolute pressure measurement. Applications include: vacuum furnaces, freeze-drying of fruits and vegetables, gas lasers, automotive component testing, bottle coatings, and vacuum distillation.

Wide Variety of Pressure Output Signals

These capacitance manometers are available in a wide variety of pressure output signals.  They can be used as a pressure transducer when choosing the 0-5 VDC or 0-10 VDC output option, or as a pressure transmitter when choosing the 4-20 mA output options.

Choice of Connector Types

These pressure transducers are available with a number of connectors for easy integration into a system.  Connector options include:

  • 9-pin male D-subminiature
  • 15-pin male high-density D-subminiature
  • 9-pin D-subminiature on flying lead
  • 4-pin Bendix PTO
  • Flying Leads – 6 ft (2 m)
  • Flying Lead with 15-pin male D-subminiature

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