Psychrometer °F vs airCloud Tap

Psychrometer °F is a psychrometric calculator for evaluating thermal comfort and moist-air conditions using U.S. customary units. Adjust temperature and humidity easily with the on-screen dials. Temperatures are color-coded for quick reference, and a “Good” indicator appears when conditions are between 68–82°F and 30–60% relative humidity. Choose from the following input combinations: • Dry-bulb temperature and relative humidity • Dry-bulb temperature and dew-point or frost-point temperature • Dry-bulb temperature and wet-bulb temperature The app displays or calculates: • Dry-Bulb Temperature (°F) • Wet-Bulb Temperature (°F) • Dew Point / Frost Point (°F) • Relative Humidity (%RH) • Humidity Ratio / Mixing Ratio (gr/lb) • Absolute Humidity (gr/ft³) • Enthalpy (Btu/lb) • Specific Volume (ft³/lb) • Atmospheric Pressure (inHg) • Vapor Pressure (inHg) • Saturation Vapor Pressure (inHg) Comfort Indices: • Heat Index based on the U.S. National Weather Service method • Simplified indoor WBGT based on dry- and wet-bulb temperatures • Discomfort Index (DI) The app also displays risk levels and easy-to-understand indicators for each selected index. Atmospheric Pressure: Choose from standard atmospheric pressure, the device’s built-in barometer on supported devices, or manual entry. Selecting the barometer may require Motion & Fitness access because iOS manages pressure-sensor permission through this setting. Outdoor Conditions: Tap the Outdoor Air button to retrieve the current temperature, relative humidity, and weather conditions for your location from Apple Weather. Location access is requested only when this feature is used. This feature retrieves weather information; it does not directly measure the air conditions around your device. Psychrometer Types: • Assmann — Aspirated psychrometer with forced ventilation; provides the highest measurement accuracy. • Wall-Mounted — August psychrometer using natural airflow; simple and convenient, but less accurate. • Sling — Swung by hand to move air across the thermometers; portable and suitable for outdoor use. Assmann is the default setting. Tapping Reset or Outdoor Air returns the app to Assmann mode. Wall-Mounted and Sling modes use wet-bulb input. Psychrometric Process Reference: You can also explore psychrometric processes without using a psychrometric chart. • In dew-point input mode (°F DP), keep the dew point fixed and adjust the upper dial to observe heating and cooling changes. • In wet-bulb input mode (°F WB), keep the wet-bulb temperature fixed and adjust the upper dial to observe humidification and dehumidification changes. • To examine steam humidification, use relative-humidity input mode (%) and adjust the lower dial. Calculation Methods: The Sonntag equations are used for saturation vapor pressure. Vapor-pressure calculations use the Sprung, August, or Ferrel psychrometric relationships according to the selected psychrometer type. Relative humidity is calculated according to WMO conventions. The input range is intentionally wide, but extreme combinations may increase numerical error or fall outside the practical range of the formulas. Rounding and internal unit conversions may also cause the least significant digits to change when switching input modes. Results are provided for reference only. Although care is taken to ensure accuracy, results are not guaranteed. The developer is not responsible for any damage, loss, or disadvantage resulting from use of this app. This app contains ads. A one-time in-app purchase removes the banner ad and the full-screen ad shown at launch.

airCloud Tap app offers contactless settings of your Hitachi air conditioning equipment via mobile phone (1), through NFC technology. HVAC professionals and air conditioning managers can reduce time spent on commissioning, operation, and maintenance. With airCloud Tap, each commissioning & service setting can be read on your phone, combined with a simplified visual interface and complete description. How airCloud Tap works 1. Download and create your account airCloud Tap app. 2. Bring your phone close to the NFC symbol on compatible Hitachi air conditioning equipment (2)(3). airCloud Tap will read and display the current settings on your phone screen. 3. You can modify all air conditioning settings by editing them on airCloud Tap app. You do not need to maintain proximity to the air conditioning equipment when editing settings on the phone. 4. Once new settings are entered on the phone, tap your phone close to the NFC symbol on the air conditioning equipment to apply them. List of key settings and data accessible with airCloud Tap app (4): Via Hitachi air365 Max VRF units (2): □ Commissioning: Record site information, log refrigerant charges, Optional Function selection, External Input/Output, Process Test Run □ Maintenance: Record and export operation data, system information, Cause of alarm code, Error history display, Operation data before alarm Via Hitachi wired controllers (3): □ Commissioning: Thermistor selection and calibration, Optional Function Selection, Process Test Run, Controller’s displayed room name, Date/Time, Language selection, Hotel Mode Activation □ Air conditioning operation: Scheduling, Power-Saver, Dual Setpoint, Temperature Restriction, Controller Lock □ Maintenance: Error history display, Operation data reading, Product information Quick copy-paste functionality, ideal for multi-unit systems For outdoor units and remote controllers, save your setting preferences inside the app to apply them again later! It takes a simple tap to copy and apply the saved settings. This functionality is particularly useful for multiple zones with similar needs, such as hotel guestrooms, office meeting rooms, multifamily condominium units… etc. Users can arrange all the settings in one zone first, save them, and then write the copied settings to all remaining zones in one tap. Export of system data With airCloud Tap, users can read operation & history data and export them into separate files, for easy sharing with other servicing teams. Access to online installation & operation manuals airCloud Tap can recognize the air conditioning equipment’s model and redirect you to online installation manual and operation manuals. (5) (1) Smartphone requirements Storage capacity: 150 Mbyte or more Require connectivity features: NFC (Near Field Communication) & Internet (Wi-Fi*/4G/5G) (2) Compatible controller equipment: Hitachi VRF Advanced-Color controllers PC-ARFG1-A, PC-ARFG1-U, PC-ARFG1-M, PC-ARFG2-T, PC-ARFG2-E, PC-ARFG2-EB and Eco-Compact wired controllers PC-ARC-A, PC-ARC-U, PC-ARC-M. (3) Compatible outdoor unit equipment: RAS-HNCBLW, RAS-HNCCLW, RAS-RNCBLW, RAS-RNCCLW (4) List of functionalities is not exhaustive. (5) Requires internet connection (6) For those using two or more smartphone devices: If you have changed your user basic information (such as name or user type), please log out of the app on all devices and log in again. Trademark * Wi-Fi is a registered trademark of the Wi-Fi Alliance.