HVAC Psychrometric LT vs Psychrometer °F Usage & Stats

The "HVAC Psychrometric LT" app is the #1 selling psychrometric application for the Apple iPhone and iPad. Tens of thousands of happy users have downloaded this useful application for performing quick and simple psychrometric analysis. Just a few reasons why you should buy this application: 1. The Psych LT is a universal app that it is optimized for both the iPhone and iPad. 2. This app was developed by Carmel Software, a company that has been developing software for 20+ years. We are experts in software design and HVAC analysis. 3. It allows you to quickly and easily perform single-state HVAC psychrometric calculations. 4. Select and update all input parameters and view the calculated results all in the same screen without switching from one screen to another. 5. Select from 23 different combinations of any 2 input parameters such as "Humidity Ratio / Dewpoint Temperature" and much more. 6. Immediately view updated results as you change the input values using the on-screen slider control. You can specify how much to increase or decrease values as you slide the indicator along the slider mechanism. 7. Send an HTML email and a spreadsheet attachment of all of the single-state and mixed-air inputs and results 8. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 The following input and output value-types are displayed: 1. Dry-bulb temperature 2. Humidity ratio 3. Relative Humidity 4. Wet-bulb temperature 5. Partial pressure 6. Enthalpy 7. Specific volume 8. Dewpoint temperature 9. Total airflow or mass flow (for mixed-air calcs, only) You can specify additional parameters such as the altitude of the air being analyzed, the atmospheric pressure, different types of units such as degrees F or R, and English or Metric units. The "HVAC Psychrometric LT" application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our analysis software and incorporated it into their leading Autodesk Revit software product. In addition, ASHRAE has hired Carmel Software to develop custom mobile apps to accompany their various standards. We also offer the following apps for the iPhone/iPad: 1. HVAC Residential Load Calcs 2. HVAC Load Plus 3. HVAC Duct Sizer 4. HVAC Pipe Sizer – Gas Low Pressure 5. HVAC Pipe Sizer - Gas High Pressure 6. HVAC Pipe Sizer – Liquid 7. HVAC Pipe Sizer – Steam 8. Steam Tables 9. HVAC Toolkit 10. Psychrometric LT 11. HVAC Pipe Sizer Plus 12. HVAC Pipe Sizer Gas Plus 13. HVAC Quick Load 14. HVAC ResLoad-J 15. HVAC Equipment Locator 16. HVAC Psych HD

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Psychrometer °F

This app calculates thermal comfort. It evaluates heat, cold, dryness, and moisture, and indicates whether conditions are within a comfortable range. You can easily adjust values with a dial, and temperature is color-coded for clarity. By entering either temperature and humidity, dew-point temperature, or wet-bulb temperature, the following air properties can be calculated accurately: Dry-Bulb Temperature (°F) Wet-Bulb Temperature (°F) Dew-Point Temperature / Frost Point (°F) Relative Humidity (%RH) Mixing (Humidity) Ratio (gr/lb) Absolute Humidity (gr/ft³) Enthalpy (Btu/lb) Specific Volume (ft³/lb) Atmospheric Pressure (inHg) Vapor Pressure (inHg) Saturation Vapor Pressure (inHg) Temperature–Humidity Index (Discomfort Index) (“Good” indication in the temperature range of 68 to 82 °F and humidity of 30 to 60%.) Easy dial input. You can automatically enter the outdoor temperature and humidity from weather information (please allow use of location information). If you use a psychrometer, please choose from three types. (When not using one, keep Assmann as the default.) Assmann: aspirator psychrometer; forced-ventilation type. Natural: August psychrometer; simple, wall-mounted, without forced ventilation. Sling: sling psychrometer; swung by hand. (If you press the Reset button or the Outdoor button, it returns to the ventilation type. Except for the ventilation type, only wet-bulb input is available.) The following can be read without a psychrometric chart: By fixing the input mode to dew-point input (°F DP) and increasing/decreasing the upper dial, you can read heating/cooling changes. By fixing the input mode to wet-bulb input (°F WB) and increasing/decreasing the upper dial, you can read humidification/dehumidification changes. For steam humidification, fix the input mode to humidity input (%) and increase/decrease the lower dial to read. The Sonntag formula is used for saturation vapor pressure; Sprung and Ferrel are used for vapor-pressure calculations. Relative humidity is calculated according to WMO. This app does not measure values at your current location; it retrieves weather information. The input range is wide for usability, but entering extreme values increases error and may cause calculation errors. Also note that rounding and other internal calculations may change the least significant digits, so numbers may vary slightly when switching modes. We make every effort to ensure the accuracy of the results, but we do not guarantee it. We are not responsible for any damages, losses, or disadvantages that occur during use.