DATAMATH CALCULATOR MUSEUM
Goulds Pumpulator by Texas Instruments
|Date of introduction:||1980||Display technology:||LED-stick|
|New price:||Display size:||8 (5 + 2)|
|Size:|| 5.8" x 3.1" x
148 x 78 x 36 mm3
|Weight:||4.0 ounces, 114 grams||Serial No:||2378392|
|Batteries:||9V||Date of manufacture:||wk 51 year 1980|
|AC-Adapter:||Origin of manufacture:||USA|
|Precision:||11||Integrated circuits:||TMC0980 (CD9801)|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 5.0M Bytes)|
Goulds Pumpulator was one of the early customized calculators produced by Texas
Instruments. Basically this calculator represents a Business
Analyst-I but was changed with a custom designed program memory to do be used as a pump calculator for use with
the English system of measurement. A similar
approach was later realized by Jeppesen Sanderson with their Flight Computers,
e.g. the Avstar.
Dennis Belillo gave us some hints about the functions and keys of this mystery calculator.
| psi = pounds/inch squared 1 psi = 70.3089 grams/cm. squared
atmospheric pressure is +/- 15 psi at sea level
hp (I understand that there is a measure of work called the metric horse power)
1 horse power (as God intended them to be) = 1.0143 horse power metric
and 1 hp = 632,800 calorie, grams/hour
gpm = gallons / min therefore 1 gpm = 3.7853 liters per minute
Simply by comparing the designation of the integrated circuits of the entry line "Majestic" calculators, you'll get the all members of this family:
Digging deeper into the TMC098x calculator chips you'll locate an OEM-chip used on a TI-30 "clone" manufactured in Hong Kong:
TMC0985 Amelia Scientific 2001
With the introduction of the TI-58 Texas Instruments created the Solid State Software Modules to customize calculators. Have a look onto the insurance fee calculators from Agrippina, Allianz, Lloyd, LVM, Nordstern or Victoria.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, December 5, 2001. No reprints without written permission.