| Description | The Span Pac™ H2O instrument works on a differential principal. Application of this principle is meaningful when the moisture content of the background diluent gas exceeds 10 percent of the minimum concentration to be generated. Calibration is based on the change in analyzer response caused by the The Span Pac™ H2O instrument works on a differential principal. Application of this principle is meaningful when the moisture content of the background diluent gas exceeds 10 percent of the minimum concentration to be generated. Calibration is based on the change in analyzer response caused by the addition of a known water vapor concentration from a KIN-TEK Trace Source™ water permeation tube to a flowing stream of the diluent gas. This differential method overcomes the “no zero” problem, and the problem of the background gas affecting the response.
The permeation tube emission rate is certified by the Factory traceable to NIST by gravimetric weight loss over time. This provides a close approximation to a primary standard, even in situations where primary standards are not available.
KIN-TEK takes special care in design, construction and choice of hardware components to minimize errors due to atmospheric contamination and interactions with other materials in the system.
... Read More | The KIN-TEK Analytical 491Flex™ System is a manually operated, expandable, full capability permeation tube system for generating precision calibration gas mixtures. The 491Flex™ is ideally suited for creating trace concentration – ppm, ppb, and pptr – mixtures. The system uses KIN-TEK Trace SourceThe KIN-TEK Analytical 491Flex™ System is a manually operated, expandable, full capability permeation tube system for generating precision calibration gas mixtures. The 491Flex™ is ideally suited for creating trace concentration – ppm, ppb, and pptr – mixtures. The system uses KIN-TEK Trace Source™ disposable, refillable and diffusion permeation tubes for over 550 Supported Chemicals. The 491Flex™ Gas Standard Generator System is composed of one or more modules, depending on application requirements.
Features:- Complete, integrated, ready-to-use turnkey system
- Manually operated via front panel controls
- Direct readout of oven temperature and mass flow rate
- Modes of Operation: standby, zero and span
- Designed for limited expandability
- Flow path designed for maximum flexibility with minimum error
- Flow path suitable for reactive gases – mixture contacts only glass, Teflon® and stainless steel (other materials available)
- Optional component flow path materials available (sulfinert-coated, all stainless, etc.)
- Accepts disposable permeation tubes, diffusion tubes, ultra-high rate liquid filled tubes, wafer tubes, and prefilled gas fed permeation tubes
- Accepts up to 8 disposable tubes per oven with maximum 6 inch length x 1/4 inch diameter (KIN-TEK HRT, SRT and EL tubes)
- Accepts one of KIN-TEK refillable LFH, and 57 Series tubes per oven
... Read More | The EcoFlex™ Permeation System is designed for creating trace concentration gas mixtures. Mixtures are produced by diluting the minuscule flow of vapor emitted by Trace Source™ permeation (or diffusion) tubes with a much larger flow of inert matrix gas, typically nitrogen or zero air. Mixtures The EcoFlex™ Permeation System is designed for creating trace concentration gas mixtures. Mixtures are produced by diluting the minuscule flow of vapor emitted by Trace Source™ permeation (or diffusion) tubes with a much larger flow of inert matrix gas, typically nitrogen or zero air. Mixtures contact only suitably inert materials, Teflon®, coated stainless steel, or glass.
The EcoFlex™ manual system is built on the same readily transportable platform as the microprocessor controlled FlexStream™ Base Module. The EcoFlex™, however, is a simple, stand-alone, non-expandable, single oven permeation system.
The EcoFlex™ holds the Trace Source™ Permeation Tube(s) at a constant temperature and introduces a small controlled flow of dilution gas over the tube. Pure component compound vapor emitted from the permeation tube(s) mixes with this small flow to form a ‘base’ concentration gas mixture. This base mixture then joins a larger main dilution flow to form the final mixture. The mixture concentration is set by adjusting that main dilution flow.
Permeation tubes of various emission rates are available for over 550 compounds. By choosing a tube suited to the application, mixtures having concentration from low ppb to over 1000 ppm can be generated and the concentration can then be adjusted over a 20:1 range. A single permeation tube, for instance, might be used for concentrations from 1 ppm in 250 cc/min or down to 50 ppb in 5 slpm. Using the mixture immediately after preparation eliminates storage loss.... Read More | The KIN-TEK Generator FlexStream™ System is ideally suited for creating trace concentration – ppm, ppb, and pptr – mixtures. The FlexStream™ uses KIN-TEK Trace Source™ disposable, refillable and diffusion permeation tubes for over 550 Supported Chemicals. Permeation tube oven with wide temperature The KIN-TEK Generator FlexStream™ System is ideally suited for creating trace concentration – ppm, ppb, and pptr – mixtures. The FlexStream™ uses KIN-TEK Trace Source™ disposable, refillable and diffusion permeation tubes for over 550 Supported Chemicals. Permeation tube oven with wide temperature range controlled to 0.01 °C. The FlexStream™ Gas Standard Generator System is composed of one or more modules, depending on application requirements.
Features:- High-accuracy primary dilution mass flow rate
- Front panel color touch-screen human interface
- Automation of all calculations; key in the target concentration and the FlexStream™ sets the flow rate
- Single-oven module can create mixtures with up to 8 components
- External computer monitoring and control
- Expandable
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