Baltic Blender
免費Offers In-App Purchases
1.10for iPhone, iPad and more
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Baltic Blender 螢幕截圖
About Baltic Blender
Technical diving gas partial-pressure blending app. Supports nitrox and - via in-app purchase upgrades - trimix and pricing/volumes used.
Baltic Blender uses the GERG-2004 real gas model to allow a SCUBA gas blender to easily and accurately use partial-pressure techniques to blend available gasses to the desired final mixture. It is not intended as a substitute for proper training and certification in the safety, handling, and blending of high pressure gasses, but rather as a tool to perform the complex math required to reach the desired mixture. In such training classes, you would learn important safety information about the handling of high-pressure gasses. SCUBA gas blending is not to be taken lightly; it is one of the only activities where a mistake may not just kill you, but also those around you, or possibly the diver you are blending the gas for.
Traditional blending techniques have two inherent errors which the blender must learn to compensate for, traditionally by adding a fudge-factor. First, traditional blending uses the simple ideal gas model, but the gasses we breathe, at SCUBA cylinder pressures, are far from ideal gasses. Baltic Blender uses the GERG-2004 real gas model which predicts how the real-world gasses behave. Second, traditional blending generally ignores the heating of the cylinder as gas is introduced, requiring the blender to either fudge or allow the cylinder to cool. Baltic Blender requires that the blender allow the temperature to stabilize, rather than cool, between each step, so that an accurate measurement of the cylinder wall temperature using a commercially available infrared thermometer reflects the temperature of the gas inside.
Supports using preblended gas for eg. using leftover trimix or for using banked mixes.
Features ;
* Nitrox
* Trimix (via in-app purchase)
* Volume consumed & Pricing (via in-app purchase)
* Blending and topping off
* Metric and imperial units.
* Simultaneous work on multiple cylinders
* Grouping of tanks and pricing
* Real Gas Law using GERG-2004
* Per cylinder configurable preblend
* Easy to access temperature adjustments
* Configurable list of default gases
* Configurable standard temperature
* Bill printing/emailing
You can enter the data for multiple cylinders at once. Cylinders can be placed in groups for billing purposes.
** Trimix, volume consumed and pricing is only available via in-app purchase upgrades. **
GERG-2004; Kunz, O.; Klimeck, R.; Wagner, W.; Jaeschke, M. (2007): The GERG-2004 Wide-Range Equation of State for Natural Gases and Other Mixtures: GERG Technical Monograph 15 (2007) and Fortschr.-Ber. VDI, Reihe 6, Nr. 557, VDI Verlag, Düsseldorf, 2007.
The partial GERG-2004 implementation used to calculate the compressibility factors of oxygen, helium, nitrogen and their mixtures in the gas phase was inspired by open source code written by David de Marneffe (daviddemarneffe[at]y a h o o . c o m) in December 2007.
Baltic Blender uses the GERG-2004 real gas model to allow a SCUBA gas blender to easily and accurately use partial-pressure techniques to blend available gasses to the desired final mixture. It is not intended as a substitute for proper training and certification in the safety, handling, and blending of high pressure gasses, but rather as a tool to perform the complex math required to reach the desired mixture. In such training classes, you would learn important safety information about the handling of high-pressure gasses. SCUBA gas blending is not to be taken lightly; it is one of the only activities where a mistake may not just kill you, but also those around you, or possibly the diver you are blending the gas for.
Traditional blending techniques have two inherent errors which the blender must learn to compensate for, traditionally by adding a fudge-factor. First, traditional blending uses the simple ideal gas model, but the gasses we breathe, at SCUBA cylinder pressures, are far from ideal gasses. Baltic Blender uses the GERG-2004 real gas model which predicts how the real-world gasses behave. Second, traditional blending generally ignores the heating of the cylinder as gas is introduced, requiring the blender to either fudge or allow the cylinder to cool. Baltic Blender requires that the blender allow the temperature to stabilize, rather than cool, between each step, so that an accurate measurement of the cylinder wall temperature using a commercially available infrared thermometer reflects the temperature of the gas inside.
Supports using preblended gas for eg. using leftover trimix or for using banked mixes.
Features ;
* Nitrox
* Trimix (via in-app purchase)
* Volume consumed & Pricing (via in-app purchase)
* Blending and topping off
* Metric and imperial units.
* Simultaneous work on multiple cylinders
* Grouping of tanks and pricing
* Real Gas Law using GERG-2004
* Per cylinder configurable preblend
* Easy to access temperature adjustments
* Configurable list of default gases
* Configurable standard temperature
* Bill printing/emailing
You can enter the data for multiple cylinders at once. Cylinders can be placed in groups for billing purposes.
** Trimix, volume consumed and pricing is only available via in-app purchase upgrades. **
GERG-2004; Kunz, O.; Klimeck, R.; Wagner, W.; Jaeschke, M. (2007): The GERG-2004 Wide-Range Equation of State for Natural Gases and Other Mixtures: GERG Technical Monograph 15 (2007) and Fortschr.-Ber. VDI, Reihe 6, Nr. 557, VDI Verlag, Düsseldorf, 2007.
The partial GERG-2004 implementation used to calculate the compressibility factors of oxygen, helium, nitrogen and their mixtures in the gas phase was inspired by open source code written by David de Marneffe (daviddemarneffe[at]y a h o o . c o m) in December 2007.
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最新版本1.10更新日誌
Last updated on 2021年04月22日
歷史版本
Fix hang when pressure/gas input is dismissed.
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Version History
1.10
2021年04月22日
Fix hang when pressure/gas input is dismissed.
1.9
2020年12月28日
Fixes for iOS14 and iPhone 12
1.8
2020年12月11日
Updated for iOS 14.
1.7
2017年07月24日
Further improvements to mapping adding gas back to volume. Now filling a 80 cuft 3000 psi tank from 0 to 3000 psi with air will show 80 cuft was added and not 79.6 cuft.
1.6
2017年06月13日
- Use real gas law for pricing volume calculations.
- Fix bug where app crashed on high values in working pressure.
- Fix bug where app crashed on high values in working pressure.
1.5
2017年05月26日
- Fixes for iOS10 and 64bit compatible.
1.4
2014年11月04日
- iOS8 support.
- Support pricing for air by volume.
- Minor UI bugs fixed.
- Support pricing for air by volume.
- Minor UI bugs fixed.
1.3
2013年10月28日
- iOS7 UI.
- Configurable ppO2 END display for mixture selector.
- Configurable ppO2 END display for mixture selector.
1.2
2013年01月12日
- Fixes hang when editing cylinder name and tapping pressure/mix (Issue #61).
- Minor UI fixes/improvements.
- Minor UI fixes/improvements.
1.1
2012年11月06日
- iPhone5 and iOS6 compatibility.
- Configurable Standard Temperature, no longer locked at 21℃/70℉.
- Configurable list of default gases.
- Print/email bills with custom header.
- Minor internationalisation fixes.
- Configurable Standard Temperature, no longer locked at 21℃/70℉.
- Configurable list of default gases.
- Print/email bills with custom header.
- Minor internationalisation fixes.
1.0
2012年05月08日
First release.
0.30
2012年03月29日
Baltic Blender FAQ
點擊此處瞭解如何在受限國家或地區下載Baltic Blender。
以下為Baltic Blender的最低配置要求。
iPhone
須使用 iOS 10.3 或以上版本。
iPad
須使用 iPadOS 10.3 或以上版本。
iPod touch
須使用 iOS 10.3 或以上版本。
Baltic Blender支持英文
Baltic Blender包含應用內購買。 以下為Baltic Blender應用內購買價格清單。
Trimix
$4.99
Volumes & Pricing
$4.99