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Mass Range:

(amu)

Smallest Detectable Partial Pressure:

Resolution:

(% Valley)

Mass Stability:

(+/- amu)

Maximum Operating Pressure:

Mass Analyzer Design:

Ionization Method:

Detector Type:

Local Interface:

Computer Interface?

Computer Interface Options:

Application Software Included?

Display Options:

Import/Export Capabilities?

Spectral Correction Equations?

Quantitative Analysis Capabilities?

Self-Calibration?

Extreme Environment?

Data Storage Options?

Programmable?

Monitor, Alarm or Process Controller?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with Residual Gas Analyzers specifications:

Performance Specifications
   Mass Range:       A measure of the atomic mass range detected by the spectrometer in Atomic Mass Units (AMU). May also be measured in Daltons (Da). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Smallest Detectable Partial Pressure:       The smallest detectable partial pressure in the vacuum system that the analyzer can detect. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Resolution:       % Valley Resolution is the valley between adjacent peaks of equal height, throughout the mass range. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Mass Stability:         
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Maximum Operating Pressure         
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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System Configuration
   Mass Analyzer Design:      The part of the spectrometer that analyzes the process by which a mixture of ionic species is separated according to the mass-to-charge ratio (m/z). The analysis may be qualitative and/or quantitative.
   Your choices are...         
   Quadrupole       Quadrupole mass spectrometers consist of an ion source; ion optics to accelerate and focus the ions through an aperture into the quadrupole filter; the quadrupole filter itself, with control voltage supplies; an exit aperture, an ion detector, detection electronics, and a high-vacuum system. 
   Magnetic Sector Analysis       Single focusing analyzers: A circular beam path of 180, 90, or 60 degrees can be used. The various forces influencing the particle separate ions with different mass-to-charge ratios. Double Focusing analyzers: An electrostatic analyzer is added in this type of instrument to separate particles with a difference in kinetic energies. 
   Other       Other unlisted, specialized or proprietary mass analyzer design. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Ionization Method:       
   Your choices are...         
   Electron Impact Ionization (EI)       Electron impact ionization (EI) source uses an electron beam, usually generated from a tungsten filament, to ionize gas-phase atoms or molecules. An electron from the beam knocks an electron off of analyte atoms or molecules to create ions. 
   Field Ionization (FI)       Field ionization is the removal of electrons from any species by interaction with an intense electrical field. 
   Chemical Ionization (CI)       Chemical ionization refers to the formation of new ionized species when gaseous molecules interact with ions. The process may involve transfer of an electron, a proton, or other charged species between the reactants. 
   Other       Other unlisted, specialized, or proprietary ionization method. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Detector Type:       
   Your choices are...         
   Electron Multiplier Tube (EMT)       Electron multiplier tubes (EMT) are similar in design to photomultiplier-tubes. They consist of a series of biased dynodes that eject secondary electrons when they are struck by an ion. They therefore multiply the ion current and can be used in analog or digital mode. 
   Faraday Cup       A Faraday cup is a metal cup that is placed in the path of the ion beam. It is attached to an electrometer, which measures the ion-beam current. Since a Faraday cup can only be used in an analog mode, it is less sensitive than other detectors that are capable of operating in pulse-counting mode. 
   Other       Other unlisted, specialized, or proprietary detector type. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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User Interface Options
   Local Interface:       
   Your choices are...         
   Analog Front Panel       The panel has analog user inputs such as potentiometers, dials, switches, for adjustment of output, ranges, etc. 
   Digital Front Panel       The panel uses digital keypads or menus for programming. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Computer Interface?       The spectrometer can be controlled or monitored remotely with a computer via interface. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Computer Interface Options:       
   Your choices are...         
   Serial Interface       Serial ports or interfaces can be used for serial communication, in which only one bit is transferred at a time. Examples include RS232, RS422, RS485, USB etc. 
   Parallel Interface       Parallel interfaces are channels capable of transferring more than one bit at a time. Examples include PC printer ports, Centronics ports, etc. 
   Other       Other unlisted or specialized computer interface, such as modem, transmitter, TTL, etc. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Application Software Included?       For control or for monitoring the process. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Display Options
   Display Options:       
   Your choices are...         
   Analog Meter       Data is displayed with an analog meter or simple visual indicator. 
   Digital Readout       Device uses numerical or application specific display. 
   Video Display       The data is presented in video form via CRT, LCD, or other multi-line forms. 
   None       No integral display. Output is read and displayed remotely. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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General Features and Functionality
   Import/Export Capabilities?       Analyzer has the ability to export or import sample data. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Spectral Correction Equations?       Spectrometer has the integral ability to correct for variations in the spectrum generated due to stray light and other parameters. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Quantitative Analysis Capabilities?       The analyzer has the ability to quantify the gases present in the sample. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Self-Calibration?         
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Extreme Environment?       For use in extreme environments. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Data Storage Options?       Detector has data storage options. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Programmable?         
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Monitor, Alarm or Process Controller?         
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Environment
   Operating Temperature:       This is the full required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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