Compare Model Drawings, CAD & Specs Full Scale Range Fitting Type Availability Price
Absolute Pressure Transducer, 45°C, 1 Torr, 0.15%, 0.5 in. Tube, NEMA 1
$2,250
1 Torr 0.5 in. OD tube
Absolute Pressure Transducer, 45°C, 1 Torr, 0.15%, 8 VCR-F, NEMA 1
$2,325
1 Torr 8 VCR female
Absolute Pressure Transducer, 45°C, 1 Torr, 0.15%, NW16 ISO-KF, NEMA 1
$2,325
1 Torr NW16 ISO-KF
Absolute Pressure Transducer, 45°C, 10 Torr, 0.15%, 0.5 in. Tube, NEMA 1
$2,250
10 Torr 0.5 in. OD tube
Absolute Pressure Transducer, 45°C, 10 Torr, 0.15%, 8 VCR-F, NEMA 1
$2,325
10 Torr 8 VCR female
Absolute Pressure Transducer, 45°C, 10 Torr, 0.15%, NW16 ISO-KF, NEMA 1
$2,325
10 Torr NW16 ISO-KF
Absolute Pressure Transducer, 45°C, 100 Torr, 0.15%, 0.5 in. Tube, NEMA 1
$2,250
100 Torr 0.5 in. OD tube
Absolute Pressure Transducer, 45°C, 100 Torr, 0.15%, 8 VCR-F, NEMA 1
$2,325
100 Torr 8 VCR female
Absolute Pressure Transducer, 45°C, 100 Torr, 0.15%, NW16 ISO-KF, NEMA 1
$2,325
100 Torr NW16 ISO-KF
Absolute Pressure Transducer, 45°C, 1000 Torr, 0.15%, 0.5 in. Tube, NEMA 1
$2,250
1000 Torr 0.5 in. OD tube
Absolute Pressure Transducer, 45°C, 1000 Torr, 0.15%, 8 VCR-F, NEMA 1
$2,325
1000 Torr 8 VCR female
Absolute Pressure Transducer, 45°C, 1000 Torr, 0.15%, NW16 ISO-KF, NEMA 1
$2,325
1000 Torr NW16 ISO-KF

Configuration Options

Description
  220DA Absolute Capacitance Manometer, 0.1-1000 Torr, NEMA1, Heated to 45° C

Specifications

  • Type
    Pressure Transducer
  • Sensor Type
    Industrial Capacitance Manometer
  • Measurement Type
    Absolute
  • Full Scale Pressure Ranges
    1, 10, 20, 100, 1000, 5000, 10000, 15000, 20000, 25000 Torr
  • Sensor Temperature
    Controlled to 45°C
  • Accuracy
    0.15% of Reading
  • Analog Output
    0 to 10 VDC into > 10K Ω load and 4 to 20 mA into < 500 Ω load
  • Volume
    7.0 cc
  • Overpressure Limit
    35 psia
  • Power Requirements
    115/230 VAC, 50/60 Hz
  • Enclosure Rating
    NEMA 1

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.

Internally Heated to 45°C

These capacitance manometers are temperature controlled to 45°C for improved accuracy. Unheated versions are exposed to ambient temperature variations which can degrade the sensor accuracy. These devices have the sensor enclosed in a volume that is maintained at a constant temperature above ambient. This solution improves the manometer’s accuracy and repeatability and lowers instrument drift by reducing or eliminating process contamination within the manometer. Heated manometers are recommended for applications that require maximum accuracy and repeatability, operate above ambient temperature and for those processes that employ hot gases.

The pressure sensor is located inside a 45°C constant temperature oven for improved pressure measurement accuracy.

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.

All-Inconel® Wetted Surfaces

These pressure transducers feature all Inconel® construction of the pressure sensor allowing it to operate without damage in virtually any chemical environment, including exposure to halogens, deionized water and steam, and ozone.

0-10 VDC and 4-20 mA Pressure Outputs

These Baratron® capacitance manometers feature two simultaneous 0 to 10 VDC and 4 to 20 mA analog pressure outputs to interface with common process control systems.  The 0-10 VDC signal allows it to be used as a pressure transducer, while the 4-20 mA signal supports use as a pressure transmitter.

NEMA 1 Rated Enclosure

All pressure sensor components and electronics are housed in a rugged, NEMA 1 rated enclosure for protection when used in harsh industrial environments.

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