These instruments use permeation tubes to deliver gas standards directly to an FTIR, GC, GC-MS, Ion Mobility Spectrometer or any type of gas analyzer or environmental chamber.
FlexStream™ Gas Standards Generator
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The FlexStream™ gas standards generator provides: | ||
| • | Permeation tube oven with wide temperature range controlled to 0.01 °C | ||
| • | 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. | ||
FlexStream features:
| Principle of Operation | FlexStream Base Module |
| Dilution of constant component vapor emission from permeation or diffusion tubes |
 |
| Delivery of precise, adjustable, low concentration dynamically blended gas mixtures. Trace concentrations - ppmv, ppbv, pptv |
|
| Front panel touchscreen for oven temperature and dilution flow rate adjustment and standby, zero and span selection |
|
| External PC monitoring and control via industry-standard Modbus® RTU communications protocol and Ethernet or serial RS-232 connectivity |
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| Permeation Tube Oven | |
| Construction - high thermal mass oven with electronic PID control | Vertical orientation |
| Oven temperature range (heat only) | 30-150 °C |
| NIST-traceable oven temperature | |
| Oven setpoint resolution and control | ±0.01 °C |
| Temperature digital indication and adjust via front panel | |
| Temperature digital indication and adjust via computer interface | |
| Over-temperature detection with audible alarm and oven power removal | |
| Diluent Gas (customer-supplied) | |
| Uses inert, non-reactive, non-hazardous dry gas (Nitrogen, zero air, Argon, etc.) |
|
| Mass flow controller subsystem is factory-calibrated in Nitrogen; contact factory for calibration in other type gas |
|
| FlexSteam accepts a gas correction factor (GCF) for most gases to auto-adjust the dilution mass flow rate when a diluent gas other than Nitrogen is used |
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| Using the supplied FlexLink™ PC-based software, the mass flow controller subsystem can be easily calibrated with up to 10 points in other diluent gases (Customer supplies the flow standard) |
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| Primary Dilution Mass Flow Controller | |
| Standard mass flow controller range | 0.25 to 5 lpm |
| Optional mass flow controller ranges available (0.5-10, 0.1-1, 0.1-0.5 lpm) | |
| Mass flow rate accuracy (with multi-point calibration) | Lesser of±1.5% Reading and ±1% FS |
| Mass flow rate digital indication and control via front panel | |
| Mass flow rate digital indication and control via computer interface | |
| Mass flow controller calibration method: piece-wise linear fit | up to 10 calibration points |
| Accepts Vapor Emissions from the Following Devices* | |
| Liquid-filled disposable tubes up to 15 cm in length (maximum of 8 tubes) | |
| Liquid-filled high rate (LFH) permeation tubes (maximum of 1 tube) | |
| Factory pre-filled gas-fed permeation tubes (maximum of 1 tube) | |
| Diffusion tubes (maximum of 4 tubes) | |
| *Note: A single oven can hold only one of the above tube types at a time | |
| Standard Component Flow Path | |
| Component contacts only glass, Teflon® and stainless steel | |
| Glass permeation tube holder | |
| Suitable for reactive component gases | |
| Optional Component Flow Path (specified at time of order) | |
| Heated output lines | |
| Stainless steel | |
| Electro-polished stainless steel | |
| Sulfinert-coated stainless steel | |
| Teflon only | |
| Teflon permeation tube holder | |
| Standard Modes of Operation | |
| Standby (oven venting at approx 75 cc/min flow rate) | |
| Zero (with user-specified flow rate) | |
| Span-by-flow (with user-specified flow rate or concentration) | |
| Span-by-concentration (with user-specified target concentration) | |
| Purge | |
| Auto-calculates flow setpoint based on target concentration, tube emission rate and oven temperature |
|
| Automatically updates touchscreen with up to 8 generated concentration values | |
| Output Concentration Range | |
| Below 1 ppb to over 1000 ppm depending on tube emission rate and dilution flow rate; low ppb and ppt concentrations with secondary dilution |
|
| User selects units of ppm, ppb or ppt | |
| Interfaces | |
| Local interface - color touch screen display with virtual keypad | |
| Remote interfaces - Ethernet (standard) and serial RS-232 (standard) | |
| RS-232 conversion to RS-485 via customer-supplied converter (optional) | |
| Communications Protocol | Modbus RTU |
| PC-based Software | |
| KIN-TEK FlexLink™ software CD shipped with FlexStream Base module | |
| FlexStream Labview® Modbus driver on FlexLink™ CD | |
| LabView®-based starter software with source provided upon request | |
| Expandability | |
| Additional permeation ovens (via up to 5 FlexPM modules) | |
| Customer-refillable gas-fed permeation oven option (via FlexGF modules) | |
| Secondary diluition flow rate option (via FlexSD module); other ranges available |
0.5 to 5 lpm |
| Overall output gas stream dilution ratio with both primary and secondary dilution | Up to 10,000 to 1 |
| Humidified gas module option (contact factory for more information) | |
| Gas stream output Interface module option (via FlexIM module); If FlexSD secondary dilution module is installed, subtract 10 psig (69 kPa) |
ambient to 30 psig (207 kPa) |
| Instrument Housing (specified when ordering) | |
| Carrying case (standard) | |
| Expansion chassis (option); desktop or rack-mount; 2 cases maximum | 3 modules per case |
| Maximum number of modules in a single FlexStream system | 6 |
| Power Requirements (specified when ordering) | |
| 115 VAC, 50/60 Hz, 2 A | |
| 230 VAC, 50/60 Hz, 1 A | |
| Dimensions and Weight | |
| Dimensions (Base module as packaged in carrying case); approximate; add 3.5 in (8.3 cm) to Depth for front panel inlet filter clearance |
7.5 W x 13.5 H x 20 D inch 18.4 W x 34.3 H x 50.8 D cm |
| Weight (Base module as packaged in carrying case); approximate | 27 lb (12.2 kg) |
| Certifications | |
| European CE Mark (230 VAC, 50 Hz): FlexBase, FlexPM, FlexSD | |
| NRTL (site-specific) | |
| CSA (site-specific) | |
| Speciality Applications (Please contact the Factory) | |
| Special diluent (carrier) gases other than inert gases | |
| Trace moisture | |
| Chemical compatibility issues | |
| Heat tracing requirements | |
| Other | |
Model 491M Gas Standards Generator
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The 491M gas standards generator provides: | ||
| • | Industry-standard for over 20 years | ||
| • | Permeation tube oven with wide temperature range controlled to 0.1 °C | ||
| • | Primary dilution mass flow rate | ||
| • | Standby, zero and span modes | ||
| • | Single-oven module can create mixtures with up to 8 components | ||
| • | Expandable | ||
491M features:
| Principle of Operation | 491MB Base Module |
| Dilution of constant component vapor emission from permeation or diffusion tubes |
|
| Delivery of precise, adjustable, low concentration dynamically blended gas mixtures. Trace concentrations - ppmv, ppbv, pptv |
|
| Manual front panel controls for oven temperature and dilution flow rate adjustment and standby, zero and span selection |
|
| Permeation Tube Oven | |
| Construction - high thermal mass oven with electronic PID control | Vertical orientation |
| Oven temperature range (heat only) | 30-150 °C |
| NIST-traceable oven temperature | |
| Oven setpoint resolution and control | ±0.1 °C |
| Temperature digital indication and adjust via front panel | |
| Diluent Gas (customer-supplied) | |
| Uses inert, non-reactive, non-hazardous dry gas (Nitrogen, zero air, Argon, etc.) |
|
| Mass flow meter subsystem is factory-calibrated in Nitrogen; contact factory for calibration in other type gas |
|
| Primary Dilution Mass Flow Controller | |
| Dilution flow rate set by manual valve on front panel; measured by mass flow meter | |
| Standard dilution flow rate range | 0.25 to 5 lpm |
| Optional flow rate ranges available (0.5-10, 0.1-1, 0.1-0.5 lpm) | |
| Mass flow rate accuracy | ±1% FS |
| Mass flow rate indication via front panel | |
| Mass flow calibration method | Analog zero/span adjust |
| Accepts Vapor Emissions from the Following Devices* | |
| Liquid-filled disposable tubes up to 15 cm in length (maximum of 8 tubes) | |
| Liquid-filled high rate (LFH) permeation tubes (maximum of 1 tube) | |
| Factory pre-filled gas-fed permeation tubes (maximum of 1 tube) | |
| Diffusion tubes (maximum of 4 tubes) | |
| *Note: A single oven can hold only one of the above tube types at a time | |
| Standard Component Flow Path | |
| Component contacts only glass, Teflon® and stainless steel | |
| Glass permeation tube holder | |
| Suitable for reactive component gases | |
| Optional Component Flow Path (specified at time of order) | |
| Heated output lines | |
| Stainless steel | |
| Electro-polished stainless steel | |
| Sulfinert-coated stainless steel | |
| Teflon only | |
| Teflon permeation tube holder | |
| Standard Modes of Operation | |
| Standby (oven venting at approx 75 cc/min flow rate) | |
| Zero (with user-specified flow rate) | |
| Span-by-flow; flow rate set by manual valve on front panel and measured by mass flow meter with front panel digital indication |
|
| Output Concentration Range | |
| Below 1 ppb to over 1000 ppm depending on tube emission rate and dilution flow rate; low ppb and ppt concentrations with secondary dilution |
|
| Expandability | |
| Additional permeation ovens (via up to five 491M-PM modules) | |
| Customer-refillable gas-fed permeation oven option (via 491M-GF modules) | |
| Secondary diluition flow rate option (via 491M-SD module); other ranges available |
0.5 to 5 lpm |
| Overall output gas stream dilution ratio with both primary and secondary dilution | Up to 10,000 to 1 |
| Direct gas blending module option (via 491M-DGB) | |
| Humidified gas module option (via 491M-HG) | |
| Gas stream output Interface Module option (via 491M-IM module); If 491M-SD secondary dilution module is installed, subtract 10 psig (69 kPa) |
ambient to 40 psig (276 kPa) |
| Instrument Housing (specified when ordering) | |
| Carrying case (standard) | |
| Expansion chassis (option); desktop or rack-mount; 2 cases maximum | 3 modules per case |
| Maximum number of modules in a single 491M system | 6 |
| Power Requirements (specified when ordering) | |
| 115 VAC, 50/60 Hz | |
| 230 VAC, 50/60 Hz | |
| Dimensions and Weight | |
| Dimensions (Base module as packaged in carrying case); approximate | 7.5 W x 13.5 H x 20 D inch 18.4 W x 34.3 H x 50.8 D cm |
| Weight (Base module as packaged in carrying case); approximate | 32 lb (14.5 kg) |
| Certifications | |
| European CE Mark (230 VAC, 50 Hz): 491MB (Base), 491M-PM, 491M-SD, 491M-HG, 491M-GF, 491M-DGB |
|
| UL (site-specific) | |
| Speciality Applications (Please contact the Factory) | |
| Special diluent (carrier) gases other than inert gases | |
| Trace moisture | |
| Chemical compatibility issues | |
| Heat tracing requirements | |
| Other | |
Span Pac™ H20 Trace Moisture Gas Standard
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The Span Pac™ H20 trace moisture gas standard provides: | ||
| • | H2O concentrations adjustable over 20:1 range with single oven; 400:1 with dual oven system; 10,000:1 with secondary dilution mass flow | ||
| • | Concentrations within 0.01 to 10,000 ppm H2O range depending on model selection | ||
| • | H2O concentrations below 100 ppb with welded model | ||
| • | Industrial models have NEMA 4 cabinets and optional Z or X purge capability | ||
| • | Uses KIN-TEK Trace Source™ disposable and user-refillable water permeation tubes | ||
Trace concentration moisture is an extremely important parameter in gases used in a wide range of processes. But there is no absolute analytical method that can be used in all applications. For most sensing methods, the response to moisture is affected by the background gas and most current methods are subject to “poisoning” by certain contaminants. Basically, all trace moisture sensing systems require calibration to external standards and they must be frequently challenged with standards to demonstrate continued accuracy.
There are three special problems associated with trace moisture calibration:
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.
| Principle of Operation | Span Pac™ H20 |
| Delivery of precise, adjustable concentrations by dilution of moisture vapor from one or more certified water permeation tubes held at constant temperature |
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| Models Available | |
| Span Pac™61-H20 with single oven and primary dilution | |
| Span Pac™261-H20 with dual ovens and primary dilution | |
| Span Pac™ 61-H20-SD with single oven and primary and secondary dilution | |
| Span Pac 61-W-H20 single-oven welded model for concentrations below 100 ppb (0.01 ppm) |
|
| Span Pac 61-W-H20-SD single-oven welded model with secondary dilution for concentrations below 100 ppb (0.01 ppm) |
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| Permeation Tube Oven | |
| High thermal mass oven with electronic control | Horizontal orientation |
| Oven temperature range (heat only) | 30-150 °C |
| NIST-traceable oven temperature | |
| Oven temperature setpoint and display resolution | ±0.1 °C |
| Diluent Gas (customer-supplied) | |
| Uses inert, non-reactive, non-hazardous dry gas (nitrogen, zero air, argon, etc.) | |
| Mass flow subsystem(s) are factory-calibrated for nitrogen diluent gas. Contact Factory for calibration in other diluent gases. |
|
| (option) Instrument can be customized for other diluent gases such as hydrogen or oxygen |
Contact Factory |
| Primary Dilution Flow Subsystem | |
| Primary dilution mass flow range | 0.25 to 5 lpm |
| Mass flow rate accuracy | ±1% FS |
| Mass flow rate indicated on front panel | |
| Mass flow meter subsystem is factory-calibrated in nitrogen; contact factory for calibration in other gases |
|
| (option) 0.5 to 10 lpm; other flow ranges available | Contact Factory |
| Secondary Dilution Mass Flow Subsystem (for Span Pac 61-H20-SD model) | |
| Secondary dilution mass flow range | 0.25 to 5 lpm |
| Secondary component split flow mass flow range | 10 to 200 sccm |
| Mass flow rate accuracy (dilution and component flow controllers) | ±1% FS |
| Mass flow rate indicated on front panel | |
| Overall output gas stream dilution ratio with both primary and secondary dilution | 10,000:1 |
| (option) 5 to 100 sccm mass flow range | Contact Factory |
| Accepts Vapor Emissions from the Following Devices* | |
| Disposable 0.25 in (0.635 cm) water permeation tube(s) up to 5 in (12.7 cm) in overall length (maximum of 6 disposable tubes) |
|
| User-refillable liquid filled high rate (LFH) water permeation tube (max. 1 tube) | |
| *Note: A single oven can hold only one of the above tube types at a time | |
| Component Flow Path | |
| Electro-polished and passivated stainless steel tubing to minimize adsorption | |
| Electro-polished stainless steel permeation tube holder (for disposable-type tubes) | |
| Heated lines | |
| Cabinet Purge Port | |
| Reduces outboard-to-inboard atmospheric moisture contamination | |
| Maintains an acceptable nitrogen level within the cabinet when using hydrogen as the diluent gas to eliminate any possibility of an explosive mixture. (The user must supply a continuous controlled flow of nitrogen to the purge port.) |
|
| Optional Welded Models | |
| Seamless tubing with orbitally-welded joints for Span Pac 61-W-H20 and Span Pac 61-W-H20-SD models that generate 1 or more concentrations below 100 ppb |
|
| Modes of Operation | |
| Standby, zero and span modes set from the front panel | |
| Output Concentration Range (depending on permeation tube emission rates) | |
| Single oven model: 20 to1 concentration range within 0.01 to 10,000 ppm | |
| Dual oven model: 400 to 1 concentration range within 0.01 to 10,000 ppm | |
| Single oven model with secondary dilution: 10,000 to 1 concentration range within bounds of 0.01 to 10,000 ppm |
|
| (option) Welded models for concentrations below 100 ppb (0.01 ppm) | |
| (standard) Output gas stream can be pressurized from ambient to 40 psig for single and dual oven models and 35 psig for secondary dilution model |
|
| (option) Other output pressure ranges available | Contact Factory |
| Housing Configurations | |
| (standard) Desktop enclosure | |
| (option) NEMA 4 enclosure for industrial environments | |
| (option) NEMA 4 enclosure with Z-purge to meet NEC Class 1, Group C or D, Division II | |
| (option) NEMA 4 enclosure with X-purge to adapt unit to Division I requirement | |
| Power Requirements (specify when ordering) | |
| 115 VAC, 50/60 Hz | |
| 230 VAC, 50, 60 or 50/60 Hz | |
| Typical Custom Applications (Please contact the Factory) | |
| Using trace moisture with reactive gases | |
| Using other dilution gases such as oxygen, hydrogen, CO2, etc. | |
| Pressurized output gas stream greater than standard pressures | |
| Other mass flow rate ranges | |
| Your special requirements - contact us | |
AutoBlend™ Gas Standards Generator
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The AutoBlend™ gas standards generator provides: | ||
| • | Six independent permeation tube ovens with wide temperature range controlled to 0.1 °C | ||
| • | Primary dilution mass flow rate to 10 lpm | ||
| • | Secondary dilution mass flow rate to 10 lpm | ||
| • | Can create mixtures with up to 48 permeation tube components | ||
| • | Dual headspace and humidification options available | ||
The AutoBlend™ is an integrated computer-controlled gas blending system designed to create flowing, adjustable-concentration complex gas mixtures and test atmospheres. The system introduces precisely controlled trace concentration components into a flowing, high purity matrix gas.
The AutoBlend uses KIN-TEK Trace Source™ disposable, refillable and diffusion permeation tubes for over 500 chemicals.
The AutoBlend has six permeation tube ovens. Each oven can generate its component concentrations independent of the other ovens. This is an extremely powerful feature for dynamically testing the effects of a wide range of vapor contaminants since each oven can be switched in (span) and out (vent), and the concentrations generated by each spanning oven are independent of the concentrations generated by the other spanning ovens.
Hardware is included to assure constant gas stream output conditions independent of variations in flow and pressure. This is particulary important for applications where flow capacity is limited (e.g., filling of gas bags), or when back pressure is required to introduce the output gas stream sample to the device under test at an elevated pressure. Controls are provided on the front panel for adjusting the output pressure.
The base gas mixture created in each oven can contain up to eight different analyte components so that a test atmosphere can be spiked with up to 48 components simultaneously.
A small flow of pure dilution gas passes over the permeation (or diffusion) tubes installed in each oven to form a base gas mixture. A variable portion of each base gas mixture is then added to a main dilution flow to create a primary mixture with variable concentration ratios.
A secondary dilution feature provides a large dynamic concentration range. Secondary dilution is used or bypassed automatically in the system as required to produce target concentrations.
In many applications normally innocuous contaminants that occur routinely, or randomly, may be significant for testing purposes. In the AutoBlend™, two optional dynamic headspace saturation modules can be added (as shown in bottom cabinet above) to allow the addition of vapors from potential transient interfering compounds such as cleaning solutions, fuels or paints. Output from the headspace modules can be added either before or after secondary dilution of the trace components.
The resulting test atmosphere can be supplied either dry or at variable humidity levels with the optional humidification module. Humidity is added by splitting the total dilution flow into two parts. One part remains dry and contains all of the trace components from the permeation tubes and headspace modules. The other portion of the dilution gas is saturated with water vapor. The two portions are combined at the output of the system to form the humidified mixture. Relative humidity (RH) is varied by varying the ratio of humidified diluent to dry diluent. The trace components do not contact liquid water in the system.
| Principle of Operation | AutoBlend™ |
| Delivery of precise, adjustable, low concentration dynamically blended gas mixtures. Trace concentrations - ppmv, ppbv, pptv |
|
| Primary dilution of constant component vapor emission from permeation or diffusion tubes. Secondary dilution is automatically added but only if needed to bring the target concentrations to specified values |
|
| Method-driven. Up to 20 points of multi-component concentration mixtures can be added to a user-named method. |
|
| Permeation Tube Oven | |
| Six independent high thermal mass ovens with electronic PID control | Vertical orientation |
| Oven temperature range (heat only) | 30-150 °C |
| NIST-traceable oven temperature | |
| Oven setpoint resolution and control | ±0.1 °C |
| Split flow mass flow controller with each oven | 10 to 200 sccm |
| Independent oven over-temperature alarms | |
| Diluent Gas (customer-supplied) | |
| Uses inert, non-reactive, non-hazardous dry gas (Nitrogen, zero air, Argon, etc.) |
|
| Mass flow meter subsystem is factory-calibrated in Nitrogen; contact factory for calibration in other type gas |
|
| Primary Dilution Mass Flow Subsystem | |
| Primary dilution flow rate auto-set in software as a function of target concentration | |
| Primary dilution mass flow controller range | 0.5 to 10 lpm |
| Mass flow rate accuracy | ±1% FS |
| Mass flow rate indication via PC computer screen (with AutoBlend software) | |
| Secondary Dilution Mass Flow Subsystem | |
| Secondary dilution flow rate auto-set in software as a function of target concentration | |
| Secondary dilution mass flow controller range | 0.5 to 10 lpm |
| Secondary component split flow mass flow controller range | 10 to 200 sccm |
| Mass flow rate accuracy (dilution and component flow controllers) | ±1% FS |
| Mass flow rate indication via PC computer screen (with AutoBlend software) | |
| Overall output gas stream dilution ratio with both primary and secondary dilution | 10,000:1 |
| Accepts Vapor Emissions from the Following Devices* | |
| Liquid-filled disposable tubes up to 15 cm in length (maximum of 8 tubes) | |
| Liquid-filled high rate (LFH) permeation tubes (maximum of 1 tube) | |
| Factory pre-filled gas-fed permeation tubes (maximum of 1 tube) | |
| Diffusion tubes (maximum of 4 tubes) | |
| Headspace (for up to two optionally installed headspace modules only) | |
| *Note: A single oven can hold only one of the above tube types at a time | |
| Standard Component Flow Path | |
| Component contacts only glass, Teflon® and stainless steel | |
| Glass permeation tube holder | |
| Suitable for reactive component gases | |
| Optional Component Flow Path (specified at time of order) | |
| Heated output lines | |
| Stainless steel | |
| Electro-polished stainless steel | |
| Sulfinert-coated stainless steel | |
| Teflon only | |
| Teflon permeation tube holder | |
| Standard Modes of Operation | |
| Standby (oven venting at approx 75 to 100 cc/min flow rate) | |
| Zero (with user-specified flow rate) | |
| Span-by-concentration. Oven and headspace module split flow controllers, primary and secondary dilution flow controllers and the secondary component split flow controller are automatically set by the software in order to achieve the target concentrations. |
|
| Output Concentration Range | |
| Below 1 ppb to over 1000 ppm depending on tube emission rate and primary and secondary dilution flow rates |
|
| Expandability (specify options when ordering) | |
| Dual headspace module option (each with 200 sccm split mass flow controller) | |
| Humidified gas module option (with 10 lpm mass flow controller) | |
| Power Requirements (specified when ordering) | |
| 115 VAC, 50/60 Hz | |
| 230 VAC, 50/60 Hz | |
| Speciality Applications (Please contact the Factory) | |
| Special diluent (carrier) gases other than inert gases | |
| Trace moisture | |
| Chemical compatibility issues | |
| Heat tracing requirements | |
| Other | |