Calculator of Air 4+

Name: Calculator of Air
Rating: 4.6 (13 reviews)
Author: yoshihito sakagami

yoshihito sakagami

iPhone용으로 디자인됨

- 4.6 • 13개의 평가

- 무료

iPhone 스크린샷

설명

---- Very easy "Psychrometric Charts" calculator! ----
# Psychrometric Charts means Humidity Charts.

If you use this app, you can very easily calculate humidity, dew point temperature, etc.
The app supports 6 items, "dry bulb temperature", "wet bulb temperature", "dew point temperature", "relative humidity", "humidity ratio" and "enthalpy".
If you enter the any 2 of the items and tap “ENTER”, the app is automatically calculate other items.
You can refer to more items(plus 6 items) by use the app and sister app "HumidCalc" in combination(additional features since version 1.0.7).
For example, if you use this function, you can know specific-volume when you know dew point temperature and relative humidity.
Input range is the temperature is -273.15 ℃ to 99.97 ℃ (-459.67 ° F to 211.95 ° F), the humidity ratio is 0 kg/kg to 1 kg/kg (0 lb/lb to 1lb/lb) and the relative humidity is 0 %RH to100 %RH.
If you enter an abnormal number (for example, high wet-bulb temperature than the dry-bulb temperature), makes us known in the error display.
The app can be used in Celsius temperature (℃) or Fahrenheit temperature (° F) and Click-Sound also can be of choice turned ON / OFF.

※ 1: If you are using a 3.5 inches device, and if you want to change the setting of temperature unit or click sound, yu can change by the iOS device's Settings app.
※ 2: Atmospheric pressure is fixed at the standard atmospheric pressure (1013.25hPa / 29.92inHg).

- Disclaimer 1.
Please input and use the temperature range(0 ℃ to 40 ℃ / 32°F to 104°F ) according to common sense as much as possible. If you enter an extreme value correct calculation result may not appear.

- Disclaimer 2.
We are making as much as possible precise calculation result is output, but there are cases where errors due to technical problems, such as floating point results.

- Disclaimer 3.
We are not liable for any damage caused by the use of this application does not bear all of the responsibility.

2020년 3월 10일

버전 1.1.4

- Tweaked the screenshot.

4.6/5

13개의 평가

very good

I need to calculate the RH% inside a house given the outside temp, outside RH%, and indoor temperature. This requires two steps. First calculate dew point of outside, then using same dew point and indoor temp, calculate indoor RH%. But this calculator erases the dew point when I’m at step 2 entering the indoor temp. I have to memorize the dew point and re-enter it. Another minor thing is it displays too many digits.
P.S. The developer taught me a trick. At step 2 before entering the temp, press the dew point button first, then the dew point number will stay. I added one more star to the review.

I sincerely apologize for the delay in my reply to you.
The problem is solved if you operate the app in the way I will explain now.

(1)First of all, calculate the dew point temperature from the outside temp and the outside RH% using this app.

(2)In that state, please tap the "Dew Point" button. All numerical values other than "Dew Point" are erased from the calculation result screen, and only the numerical value of "Dew Point" remains.

(3)In that state, enter the indoor temp and tap the "ENTER" button. This app calculates indoor RH% as you wish.

I'm sorry, I'm Japanese so I'm bad at English.

P.S : Thank you so much for you added one more star!
I am glad to be of service to you.
ありがとう！(Thank you!)

Good app

I’ve been using this for a while, it works !

Sorry for the very late reply.
Thank you for your high evaluation!
The "Calculator of Air" implements a memory function, and by utilizing this function, you can use this application even more conveniently.
As an example, we will explain how to calculate the relative humidity when outdoor air is taken into a room and then heated.
＊When humidification is not performed.

1: Enter the temperature and humidity of the outside air into the "Calculator of Air".
2: Press the "Dew Point" button.
3: Next, press the "TEMP." button and after entering the indoor temperature, press "ENTER".

With this simple operation, you can calculate the indoor humidity.
If you have a chance, please try it.