Atmospheric Thermodynamics Programs
For the HP48SX scientific calculator
The Atmospheric Thermodynamic (AT) program calculates the thermodynamic properties of humid air, various meteorological parameters, and associated energy transfers.
The HP48SX calculator came out in the 1990's and was the leading programmable scientific calculator at the time. The popularity of the HP48SX led devotees to come up with a HP48 emulator which can run on a personal computer. The emulator has all the features of the original calculator and is much faster; a calculation that took 10 minutes on the real calculator takes 3 seconds on the PC emulator – a speed increase of 200 times.
Installation procedure for HP48SX calculator emulator
Calculator Emulator installation procedure - PDF (326 KB).
Atmospheric Thermodynamic Program Documentation
Program documentation - July 2010 revision. - PDF (117 KB).
Atmospheric Thermodynamic Program User Instructions
User Instructions - PDF (181 KB).
Atmospheric Thermodynamic HP48SX Program Code
HP48SX Binary Object Program Code - July 2010 version - (115 KB).
Installation Procedure
1. Program 'AT1'
can be used in HP48SX or HP48GX
2. Ensure that the calculator has a minimum of 120 kB of available
memory
3. Drag the binary file in calculator window,
4. Save in Home directory as : 'AT1' ,
Notes:
Total HP48SX memory can be increased from 30 kB to 292 kB
by merging two 128 kB memory cards.
Total HP48GX memory can be
increased from 128 kB to 259 kB by merging one 128 kB memory card.
Program AT1
was written on the HP48SX.
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