Ativa AT-30SX

Date of introduction:  2008 Display technology:  LCD dot matrix
New price:  $14.95 (SRP 2009) Display size:  3 * 15 characters
Size:  6.4" x 3.1" x 0.45"
 163 x 78 x 12 mm3
Weight:  3.5 ounces, 98 grams Serial No:  
Batteries:  Solar cells + LR44 Date of manufacture:  mth 04 year 2007
AC-Adapter:   Origin of manufacture:  China
Precision:  15 Integrated circuits:  
Memories:  7    
Program steps:   Courtesy of:  Joerg Woerner

Casio introduced with the fx-115ES already in 2005 an advanced scientific calculator with a 2-line Natural Textbook Display showing formulas and results exactly as they appear in the textbook.

Texas Instruments followed mid-2007 with the TI-30XS MultiView and Sharp joined the group with its EL-W531 series introduced late-2007.

Citizen Systems Japan Co., Ltd. introduced in 2008 with the SR-270X a pretty close clone of the Casio fx-300ES but the calculator seems to be available only in the European market. In the United States an identical product is sold by Office Depot with this Ativa AT-30SX.

In addition to the so called "Math Format" mode the calculator sports a traditional "Linear Format" mode.

Dismantling the Ativa AT-30SX reveals a pretty common construction with a single printed circuit board (PCB). The PCB hides the single-chip calculating circuit under a small protection blob of black epoxy and drives the graphing display with a heat sealed fine-pitch connector. The prominent SR100 designation on the main PCB proves that this calculator was manufactured by Kinpo Electronics, Inc., a famous company located in Taiwan and doing calculator production for well established companies like Texas Instruments, Hewlett Packard, Casio, Canon and Citizen. 

Please compare the Ativa AT-30SX with its competitors Casio fx-300ES, Sharp EL-W535 and Texas Instruments TI-30XS MultiView and understand that the Ativa AT-30SX is 99% compatible with Casio fx-300ES!

The remaining 1% are very ambivalent:

The algorithm of the Ativa AT-30SX sport a higher precision and faster execution time.
The menu structure and keyboard functionality is identical but the layout of the keys is disturbing.
    Please notice for instance the odd grouping of the [sin], [cos] and [tan] keys and the out-of-place [Abs] and [log
ab] keys.
Both the Ativa AT-30SX and Casio fx-300ES sport a dual power system with solar cells and battery,
    but the Ativa doesn’t turn on without battery, even in bright sunlight!

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© Joerg Woerner, March 7, 2011. No reprints without written permission.