The 629H Baratron® process capacitance manometer is temperature controlled to either 45°C or 100°C, accurate to 0.12% of Reading, and includes improved temperature control electronics to provide superior long-term stability and repeatability. It has an optional external zero input.
|Compare||Model||Drawings, CAD & Specs||Availability||Price|
|629H.1TBCJ4B Heated Capacitance Manometer, 0.1 Torr, 45°C, 8 VCR-F, DB9 w/Thread Lock, 0.25% of Rdg Accuracy, Status LED, External Zero||
|629H.1TBFL2B Heated Capacitance Manometer, 0.1 Torr, 45°C, 8 VCR-F, DB9 w/Thread Lock, 0.50%/Rdg Accuracy, Status LED||
|629H11TBCJ2B Heated Capacitance Manometer, 10 Torr, 45°C, 8 VCR-F, DB9 w/Thread Lock, 0.12% Rdg Accuracy, Status LED||$2,284||
|629H11TBDL1B Heated Capacitance Manometer, 0.1 Torr, 100°C, 8 VCR-F, DB9 w/Thread Lock, 0.25%/Rdg Accuracy||
|629H11TDCJ4B Heated Capacitance Manometer, 10 Torr, 45°C, NW16 ISO-KF, DB9 w/Thread Lock, 0.12%/Rdg Accuracy, Status LED, External Zero||
|629H11TDDL3B Heated Capacitance Manometer, 10 Torr, 100°C, NW16 ISO-KF, DB9 w/Thread Lock, 0.25%/Rdg Accuracy, External Zero||
|629H13TBCJ1B Heated Capacitance Manometer, 1,000 Torr, 45°C, 8 VCR-F, DB9 w/Thread Lock, 0.12% Rdg Accuracy||$2,179||
|629H13TBDL1B Heated Capacitance Manometer, 1,000 Torr, 100°C, 8 VCR-F, DB9 w/Thread Lock, 0.12% Rdg Accuracy||
|629H13TDCJ2B Heated Capacitance Manometer, 1,000 Torr, 45°C, NW16 ISO-KF, DB9 w/Thread Lock, 0.12% Rdg Accuracy, Status LED||$2,258||
|629H13TDDL1B Heated Capacitance Manometer, 1,000 Torr, 100°C, NW16 ISO-KF, DB9 w/Thread Lock, 0.12% Rdg Accuracy||
The following options are available for 629H Baratron® Heated Absolute Capacitance Manometers
Ordering Code Example: 629H01TACJ1B
|Configuration Option||Option Code|
|629H Absolute Capacitance Manometer.||629H|
Full Scale Range
|0.02 Torr (not available in 100°C)||U2T|
|0.5 in. OD Tube||A|
|8 VCR female||B|
|1.33 in. OD CF||C|
|NW16 ISO-KF (range < 5000 Torr)||D|
|8 VCO female||E|
|2.75 in. OD CF||L|
|NW25 ISO-KF (range < 5000 Torr)||Q|
|0.12% of Reading||C|
|0.15% of Reading||D|
|0.25% of Reading||E|
|0.5% of Reading||F|
|Optional Heater Status||2|
|External Zero (not available on 0.02 Torr 45°C and 0.05 Torr 100°C)||3|
|Heater Status and External Zero (not available on 0.02 Torr 45°C 4 and 0.05 Torr 100°C)||4|
|15 pin Type "D" with Thread Locks||B|
|15 pin Type "D" with Slide Locks||P|
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.
These capacitance manometers are temperature controlled to 45°C or 100°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.
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.
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.
These Baratron® capacitance manometers feature a high-level 0-10 VDC analog output signal that is linear with pressure. This analog output can be interfaced with an MKS pressure controller, an MKS power supply/display instrument, or any instrument that meets these requirements.