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Dual vacuum gauge sensors with electronics
OBE-2002 vacuum gauges are closely-coupled electronics modules which provide the user with a small, low-cost method of accurate vacuum measurement over a wide range of pressure. OBE-2002 units use the same rugged HPM-2002s tube as the award winning/highly successful Teledyne Hastings Model 2002. The modules contain all of the performance features of the Model 2002 dual sensor instruments in a compact configuration.
OBE-2002 units are ideal for applications that require accuracy without the expense of costly capacitance manometers and a wide measurement range without multiple gauges. OBE-2002 electronics modules are available with Dual Analog, RS 232, RS 485-Half and Full Duplex, Dual 4-20 ma and DeviceNet™ output options.
DeviceNet is a trademark of the Open DeviceNet Association, Inc.
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Rugged vacuum gauges based on the Bourdon principle covering the pressure range from 1 to 1020 mbar (0.75 to 765 Torr).
Advantages to the User
Highly reliable, rugged, insensitive to vibrations
Linear readout, independent of the type of gas
Excellent media compatibility owing to the stainless steel movement (BOURDONVAC C)
IP 54 protection (BOURDONVAC C)
Safety gauge which complies with UW-VBG 61 § 16 (BOURDONVAC C)
Typical Applications
Vacuum distillation
Drying processes
For explosion hazard applications
Vacuum conveying systems
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Teledyne Hastings Instruments manufactures a complete line of vacuum instrumentation. Special application needs are met by a broad selection of accurate Hastings gauge tubes. Thermopile, thermocouple, piezo-resistive strain gauges, and super Pirani sensor types are available to cover vacuum pressure ranges from 10-5 to 1000 Torr. When it comes to vacuum measurements in the 0-50 Torr range, the VH series vacuum meters and controllers offer dual unit displays (mbar and mTorr), taut band meters for rapid response to pressure changes, and are designed to operate with Hastings' proven rugged yet sensitive thermopile vacuum sensors.
The well-deserved reputation of Hastings' VT series compact, panel-mounted vacuum gauges reflects their exceptional stability, accuracy, and reliability. Other vacuum instrumentation includes: Model 2002(R) ,
Model 2002 OBE, 760 Plus, HPM 4/6, Digital VT vacuum gauge and IGE-3000 ionization gauge.
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World first: The new Pirani sensor VSP 3000 from VACUUBRAND offers the world first fine vacuum sensor with outstanding corrosion resistance and mechanical robustness. Primarily designed for applications in chemistry laboratories and process engineering, it benefits from a ceramic-encapsulated measuring element, an embedded reference element for temperature stability and wetted parts made of high-grade chemically resistant plastics. This technological breakthrough means that the VSP 3000 is a high shock proof sensor that will even survive in the event of sudden gas bumping – a typical cause of failure for standard sensor filaments.
This new patent pending sensor design is unique in fine vacuum measurement and sets a new benchmark standard for chemical fine vacuum measurement. The new Pirani sensor VSP 3000 from VACUUBRAND can be used in conjunction with both the DCP 3000 vacuum gauge and the CVC 3000 vacuum controller respectively and offers therefore not only a versatile fully chemically resistance in the measuring range from atmosphere down to 10-3 mbar, but also the innovative possibility of accurate 2-point vacuum control within this extended range. In addition, up to four external gauge heads can be connected simultaneously to the DCP 3000 vacuum gauge for easy and cost effective multi-point measurement. With small flange connection KF DN 16 at the gauge head and a screw-in hose nozzle for DN 6 to DN 10, the sensor offers flexible connection options for existing vacuum apparatus. Finally, the VACUU•BUS™-system also allows cable extensions up to 30 m, enabling remote application usage.
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Teledyne Hastings’ ionization gauges provide the user with accurate, repeatable pressure measurement for applications such as thin film coating, sputtering, lighting manufacturing, vacuum furnaces and calibration systems. These gauges feature a range from 10-10 Torr to 10-2Torr.
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Your Compact Vacuum Meters with data logger and USB interface
for 1600 to 5 x 10-4 mbar
Compact vacuum meters of the VD8 family are fully electronic and combine high quality sensors and modern microcontroller technology with a handy design.
Our customers appreciate these easy-to-operate gauges as reliable tools in plant engineering, service and laboratory.
The digital display of your vacuum meter shows the exact absolute pressure. Sensors with temperature compensation and sophisticated evaluation electronics guarantee precise and reproducible measurement results.
Optionally the vacuum meters can be used as datalogger in
order to store pressure data during the measurement. By push of a button those data are easily transmitted to a PC where they can be analysed and documented for your quality assurance using our VacuGraph Windows software.
Mobile use or fi xed installation? Integrated or detachable sensor? Quick spot check of actual pressure or documentation of measurements on PC? The VD8 will always be in compliance with your wishes.
Further Advantages
- Display of minimum and maximum pressure
- Automatic switch-off or continuous operation
- High battery lifetime due to clocked measurement
- Operation with battery or mains adapter
- Robust stainless steel flange
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Do you attach special value to the durability and performance of your vacuum instrumentation? We as developer and manufacturer of vacuum transducers, gauges, vacuum meters and controllers supply products which will exceed your expectations.
Thyracont Vacuum Instruments GmbH supplies vacuum measurement and control instruments for rough to ultrahigh vacuum.
All our products are “Made in Germany”
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Your intelligent vacuum transducers for 1000 to 1 x 10–9 mbar
Joy at innovation with the objective to find optimal solutions for our customers is our motivation for technological peak performance. This way we keep on giving new impetus to vacuum metrology.
The latest family of THYRACONT gauges, Smartline, was developed to meet the increasing demands for functionality, precision and reliability in a great variety of vacuum applications.
The patented THYRACONT impulse Pirani with extended measuring range activates ionization sensors only below a very low pressure threshold. This protects the sensors and improves gauge life.
Both, sensors and electronics are consequently designed for high performance with minimum power consumption.
Let intelligent microcontrollers take automatic care of sensor control. This will guarantee optimal interaction between the Pirani and ionization sensors and offer user friendly operation.
More Smartline advantages:
- Compact, metal sealed sensors
- Low thermal and electric influence on the vacuum process
- Insensitive against shock venting
- Correct pressure readings due to separate gas correction factors for each sensor
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They measure the level of vacuum
Available in different sizes and fixing conformations
Dry or glycerine bath dials for applications affected by heavy vibration
Double reading scale: 0 / -1000 mbar, 0/-100 KPa
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A&N currently offers two styles of vacuum gauges for rough vacuum applications:
Bourdon gauges
Thermocouple gauge tubes
A&N Bourdon gauges provide '30 to 30' (30” Hg vacuum to 30 psig) range of vacuum measurement and are available in multiple flange styles. Vacuum measurement is accomplished by a mechanical process in which a copper tube changes position due to the force of atmospheric pressure acting upon it. The mechanical force moves the indicator needle and provides a visual reading of the presence of vacuum in the system. Because this is a mechanically induced reading, Bourdon gauges work reliably regardless of the type of gas present.
A&N thermocouple gauge tubes are dependable, low-cost replacement tubes for a variety of manufacturers. A cross-reference chart as well as a full explanation of their operation is available in the A&N print catalog or in the PDF version of the print catalog (see above). Thermocouple tubes are often used to monitor foreline pressure and to signal that the system has reached cross-over pressure.
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Your Chemical Resistant Compact Vacuum Meter for 1600 to 1 mbar
Compact vacuum meters of the VD8 family are fully electronic and combine high quality sensors and modern microcontroller technology with a handy design.
Our customers appreciate these easy-to-operate gauges as reliable tools in plant engineering, service and laboratory.
The digital display of your vacuum meter shows the exact absolute pressure. Sensors with temperature compensation and sophisticated evaluation electronics guarantee precise and reproducible measurement results.
Optionally the vacuum meters can be used as datalogger in
order to store pressure data during the measurement. By push of a button those data are easily transmitted to a PC where they can be analysed and documented for your quality assurance using our VacuGraph Windows software.
Mobile use or fixed installation? Quick spot check of actual pressure or documentation of measurements on PC? The VD8 will always be in compliance with your wishes.
Further Advantages:
- Chemical resistant cermic sensor
- Display of minimum and maximum pressure
- Automatic switch-off or continuous operation
- High battery lifetime due to clocked measurement
- Operation with battery or mains adapter
- Robust stainless steel flange
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Do you attach special value to the durability and performance of your vacuum instrumentation? We as developer and manufacturer of vacuum transducers, gauges, vacuum meters and controllers supply products which will exceed your expectations.
Thyracont Vacuum Instruments GmbH supplies vacuum measurement and control instruments for rough to ultrahigh vacuum.
All our products are "Made in Germany"
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High-accuracy vacuum gauge controller that offers pressure measurement and process automation never before available in a single instrument. It measures pressure from Bayard-Alpert ionization gauges, convection-enhanced Pirani gauges, and capacitance manometers providing uninterrupted pressure readings from 1000 Torr to UHV.
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Your intelligent vacuum transducers for 1000 to 1 x 10–9 mbar
Joy at innovation with the objective to find optimal solutions for our customers is our motivation for technological peak performance. This way we keep on giving new impetus to vacuum metrology.
The latest family of THYRACONT gauges, Smartline, was developed to meet the increasing demands for functionality, precision and reliability in a great variety of vacuum applications.
The patented THYRACONT impulse Pirani with extended measuring range activates ionization sensors only below a very low pressure threshold. This protects the sensors and improves gauge life.
Both, sensors and electronics are consequently designed for high performance with minimum power consumption.
Let intelligent microcontrollers take automatic care of sensor control. This will guarantee optimal interaction between the Pirani and ionization sensors and offer user friendly operation.
More Smartline advantages:
- Compact, metal sealed sensors
- Low thermal and electric influence on the vacuum process
- Insensitive against shock venting
- Correct pressure readings due to separate gas correction factors for each sensor
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The DVG50 Digital Vacuum Gauge is used to monitor performance and efficiency of vacuum systems. Vacuum levels can be used as a diagnostic tool to determine system integrity, to verify that sufficient vacuum is present (e.g., as required for lyophilization) or to monitor the progression of the concentration process. Added benefits include an easy-to-read LED display, chemical resistance for use with both high vacuum and oil-free pumps, and direct attachment between vacuum lines.
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FEATURES:
- Seamless measurement from atmospheric pressure to UHV on a single vacuum port.
- 0-10VDC Analog Output
- RS485 digital communications
- Three Adjustable Set Points
- Digital Display, read in Torr, Mbar or Pa
- Power with 24VDC
- Small Size: 3.7" x 2.75" x 6.3"
TYPICAL PRODUCT APPLICATIONS:
- Physical Vapor Deposition
- Optical & Functional Thin Films
- Molecular Beam Epitaxy
- Accelerators & UHV Research
- Electron Device Manufacture
- Optoelectronic Device Manufacture
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General Overview :
The Pirani gauge is a roughing pressure vacuum gauge. It uses the thermal conductivity of gases to measure pressure. VG Scienta has two different types of Pirani gauge measuring slightly different pressure ranges; they are both available in a variety of styles with a range of mounting flanges.
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Many vacuum applications operate only in a specific pressure range. Analog and digital total vacuum or pressure measurement instruments are employed to measure and control the total pressure in a vacuum system. Pfeiffer Vacuum offers you three different lines of total pressure gauges.
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INFICON vacuum gauges offer superior accuracy and reliability in compact designs. Combining multiple technologies in a single controller for total pressure measurement and control of vacuum processes.
INFICON ceramic capacitance diaphragm gauges (CDG) outperform all metal-diaphragm CDGs in temperature and mechanical stability, zero drift, accuracy, repeatability, and corrosion resistance. Innovating beyond conventional technology, INFICON ceramic capacitance diaphragm gauges use an ultrapure aluminum oxide ceramic diaphragm, replacing traditional metal disphragms, for vacuum measurements of superior accuracy and repeatability.
INFICON gas-type-independent Pirani Capacitance Diaphragm combines patented dual Pirani sensors and gas-type-independent ceramic capacitance diaphragm technology in a money-saving, space-saving gauge.
INFICON Bayard Alpert Capacitance Diaphragm Gauge measures 13 decades using one compact gauge, one connection, one sensor cable and one A/D converter, dramatically reducing complexity and cost.
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KVPVG150 Vacuum Gauge
The KVPVG150 vacuum gauge with a 39 mm diameter face and a G1/8 bottom male connection. Its vacuum range is 0 to -1016 mbar.
Please contact KV Technical Sales for further details and ordering information.
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Features:
- Expandable Design - System may be assembled by combining modules to form the desired multi-functional instruments, up to 10 channels.
- Exceptional Readability - Large, bright LEDs.
- Selectable Units - Torr, microns, psi, mBar, or Pascal.
- System Leakup Rate - Digitally displayed in microns per hour.
- Computer Interface - RS232/RS485 digital communications with host computer.
- 0 - 10V, mV outputs for each sensor.
- Easy to use - All controls accessible through front panel.
- Gas compensation - Argon, Nitrogen.
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The MKS line of single vacuum gauge controller systems include Pirani, convection-enhanced Pirani and cold cathode sensor technologies. The controller/sensor systems can measure from 10-10 to 1,000 Torr.
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- Wide Range: Measures from 1x10- -2 to 1x10 -10 Torr.
- High Performance: Dual, coated and supported filaments for maximum life. Exceptionally low x-ray limit of < 1x10-10 torr. One button electronic selection of filament.
- UHV Compatible: CF type seals and 10-11 std. cc/sec. (He) leak rate ensures reliable UHV operation..
- Reliable Service: Simple design means trouble-free years of productive use in the most difficult applications.
- Bakeable: to 200 degrees C (sensor only).
- Emission Current: Selectable.
- Pressure Display: Four digit LED.
- Degas: Time Selectable.
- Setpoints: Dual TTL setpoints for process control.
- Digital Communication: RS232/485.
- Power Input: 11.5 to 30 VDC control interface power switch.
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Features :
- High Temperature
- UHV compatible
- Del-Seal™ CF flange
- Stainless steel construction
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General description
Change of pressure in vacuum systems brings about a rise or fall in number of gas molecules present and hence a rise (or) fall in the thermal conductivity of the gas. Thus the heat loss of constant voltage electrically heated filament in the system varies with the pressure.
The pirani gauge head filament has high temperature co-efficient of resistance. So a slight change in system pressure brings about useful change in filament resistance resulting in an out of balance voltage which can be read as a pressure on meter. The pirani gauge head indicates the total pressure of combined gases and other vapors in the system on the heated wire, which can loss heat to both gas and vapor molecules. The change in resistance due to temperature build-up, of a coil filament, which is supplied with constant voltage placed in Wheatstone bridge configuration, consequent to the pressure and thermal conductivity which is directly read by the gauge in terms of m.bar.
The gauge consists of the stabilized power supply and the indicating meter with the arrangement to select any of two gauge heads. Each gauge head consists of bridge and calibration elements. These heads are factory calibrated with full interchangeability. Each gauge head is provided with `O' ring coupling, to braze to customer's vacuum system.
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CDVG-4 1/4” NPT Manual Combination Dump Valve and Gage
CDVG-8 1/2” NPT Manual Combination Dump Valve and Gage
MDV-4 1/4” NPT Manual Dump Valve
MDV-8 1/2” NPT Manual Dump Valve
VG-4 1/4” NPT Vacuum Gage
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General description
This is a cold cathode ionisation Gauge consisting of two electrodes anode and cathode. A potential difference of about 2.2 KV is applied between anode and cathode through current limiting resistors. A magnetic field is introduced at right angles to the plane of the electrodes by a permanent magnet having nearly 800 gauss magnetic field which will increase the ionisation current.
The electrons emitted from the cathode (gauge head body) of the gauge head are deflected by means of magnetic field applied at right angles to the plane of the electrodes and are made to take helical path before reaching the anode loop. Thus following very long path, the chance of collision with gas molecule is high even at low pressures. The secondary electrons produced by ionisation themselves perform similar oscillations and the rate of ionisation increases rapidly. Eventually, the electrons are captured by the anode and equilibrium is reached when the number of electrons produced per second by ionisation is the sum of positive ion current to the cathode and the electron current to the anode and is used to measure the pressure of the gas.
The Cold Cathode Penning gauge is designed on this detection method to read vacuum from 10-2 to 10-6 m.bar. The vacuum reading efficiency is enhanced by utilizing cross coupled static magnetic and electron fields of the gauge head. The gauge is stabilized to high voltage DC power supply of about 2 KV. The ionization current in terms of vacuum can be noted from the front panel micro-ammeter. All the high voltage points in the penning gauge are well insulated to eliminate any accidental contact by the user.
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