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Manual Radio Shack EC-252

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  • Radio Shack EC-252 - page 1

    Cat. No. 65-53 8 OWNER’S MANUAL Please read befo re using this equi pment. EC-252 Metric Conversion Calcul at or 65-538.fm P age 1 Monday, December 13, 1999 9:15 AM ...

  • Radio Shack EC-252 - page 2

    2 INTRODUCTION Your EC-25 2 Metric Conv ersion Cal culator conveni ently c ombines an i nternal battery and a s olar pan el, s o you c an use the cal - culator anywhere . It als o has a three-key memo ry system so y ou can ad d, subtract , and recall a ca lc ula t ed figu re. In add iti on to performin g standard calcula tions , your cal - culat or ...

  • Radio Shack EC-252 - page 3

    3 KEYS AND FUNCT IONS — Converts sta ndard to metri c mea- surem ents. — Converts met ric to sta ndard mea- surem ents. +/– ( °F °C ) — Changes a dis played numbe r from pos itive to negati ve and vic e versa. Also converts Fahrenhei t to Celsiu s and vice ve rsa. 65-538.fm P age 3 Monday, December 13, 1999 9:15 AM ...

  • Radio Shack EC-252 - page 4

    4 ÷ ( acre m 2 ) — Performs t he division function . Also converts acre s to square mete rs and vi ce versa . ON/C — Turns on p ower. Also clears t he las t entr y when pres sed on ce and clea rs the w hole calcul atio n whe n pres sed tw i ce. 7 ( in cm ) — Enters 7 . Also conv erts inche s to cent imeters a nd vi ce ver sa. 8 (ft m ) — E ...

  • Radio Shack EC-252 - page 5

    5 4 ( in 2 cm 2 ) — Enters 4 . Also convert s square inches to square c entimet ers and vice ve rsa. 5 ( ft 2 m 2 ) — Enters 5 . Also c onverts square fee t to squ are meters a nd vice v er- sa. 6 ( mi le 2 km 2 ) — Enters 6 . Also c onverts squar e miles to squ are kil ometer s and vice versa . – ( fl. ml ) — Performs the subtraction fun ...

  • Radio Shack EC-252 - page 6

    6 3 ( ga l l ) — Enters 3 . Also converts US gallons to lite rs and vi ce versa . M+ ( yard m ) — Adds and s tores a c al- culation answer in memory. Also co nverts yard s to mete rs and vi ce ver sa. 0 ( oz g ) — Enters 0 . Also conv erts ounce s to gram s and vi ce ver sa. . ( lb kg ) — En ters the de cimal po int. Also conv erts pounds t ...

  • Radio Shack EC-252 - page 7

    7 OPERATION T URNING ON THE EC-252 Pre ss ON/C to turn on the ca lculator. Notes: • The cal culator turn s of f automati cally if you do n ot press any key wit hin abo ut 1 1 minutes. • When y ou tu rn the ca lculator of f, previ- ous ent ries are cl eare d. CORRECTING ENTRY ERRORS If you enter a n incorrec t value, press ON/C once. Th en enter ...

  • Radio Shack EC-252 - page 8

    8 To clear the di splay for a ne w calculat ion, press ON /C twice. 0. appears, th en begin the ne w calcula tion. If yo u pres s an inco rrec t opera tor key ( + , – , × × × × , ÷ ), si mply p ress the c orre ct key and con- tinue yo ur calcul ation. CALCULATION ERRORS ERROR appears in the up per lef t corner when: • A calcul ation res ul ...

  • Radio Shack EC-252 - page 9

    9 Estimating Cal culat ion Results If you perform a calcu lation that results i n an ov erfl ow err or , you ca n est imate the co r- rect result (to 8 s ignific ant digits ) by follow- ing th ese s teps. 1. Count the number of digits dis played to the l eft of the d ecimal p oint. 2. Remo ve the decimal point. 3. Add as ma ny zeros to th e right o ...

  • Radio Shack EC-252 - page 10

    10 USING THE +/– KEY Press +/– to ch ange the dis played va lue from positi ve to negativ e or from negat ive to positive . Note: MINUS - appears fo r a negative value . CALCULATION EXAMP LES Basic Y o u Press Y ou See 256 + 3 78 = 634. 471 – 223 = 248. 15.5 × 2.3 = 35.65 17.2 ÷ 2.5 = 6.88 24 + 24. 65-538.fm P age 10 Monday, December 13 , 1 ...

  • Radio Shack EC-252 - page 11

    11 Constants For multip lication , the first v alue you enter is the cons tant. For a ddition, subtracti on, and divisio n, the sec ond value you ent er is the constan t. 36 – 60. 75 × MINUS – 15. 8 ÷ MINUS – 120. 9 = MINUS – 13.333333 Y o u Press Y ou See 5 × × × × 7 = 35. 9 = 45. 10 = 50. 100 ÷ 5 = 20. Y ou Press Y ou See 65-538.fm ...

  • Radio Shack EC-252 - page 12

    12 Percentage Example: 20% of 720 is 144 . Add-On Example: 3 0% add ed to 540 i s 702. 200 = 40. 300 = 60. Y ou Press Y ou See 720 × 20 % 144 Y ou Pre ss Y ou See 540 + 3 0 % 702. Y o u Pre ss Y ou See 65-538.fm P age 12 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 13

    13 Discount Exam ple: 800 di scounted by 20 % is 640. Reciprocal Exam ple: 1 / 8 = 0.125 Exponent Exam ple: 7 6 = 1176 49 Y ou Pres s Y ou S ee 800 – 20 % 640. Yo u P r e s s Yo u S e e 8 ÷ = 0.125 Y ou Press Y ou See 7 × = = = = = 117649 65-538.fm P age 13 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 14

    14 MEMORY CALCULATIO NS To st ore a value in mem ory, first press MRC (mem ory recal l/clear) twice t o clear the mem ory, then pre ss ON/C to cl ear all calcula tions . To add a value to memo ry, enter the num - ber or cal culation you wa nt to add, then press M+ . The cal cul ator total s the c urrent calcula tion (i f one is p ending) an d adds ...

  • Radio Shack EC-252 - page 15

    15 To recall the valu e from memo ry, press MRC once. The m emory va lue appea rs. To clea r the conte nts in mem ory, p ress MRC twice so MEMORY di sappears . Exam ple: 2392 + 576 ————— – 73 = –64.6 1582 786 – 43 2 Y o u Pr es s Y o u Se e MRC MRC ON/C 0. 786 M+ MEMORY 786. 432 M– MEMORY 432. 2392 + MEMORY 2392. 576 ÷ MEMORY 296 ...

  • Radio Shack EC-252 - page 16

    16 CONVERSION and let you sel ect the convers ion di- rection — to me tric or from metric . The symbo ls ab ove each key show y ou whi ch convers ion each ke y makes. For examp le, in cm is printed above 7 . To conver t 12 inches into cen timete rs, press 12 7 . 12 inche s = 30.48 ce ntimeters . To convert centim eters into inches, use . 73 = MIN ...

  • Radio Shack EC-252 - page 17

    17 Length Exampl e: 5.5 cm = ? in Exampl e: 7 5 / 8 in = ? cm Exampl e: 12.8 m = ? ft Y o u Pres s Y ou See 5.5 in cm (7) 2.1653543 Yo u P r e s s Yo u S e e 5 ÷ 8 + 7 = in cm ( 7) 19.3675 Y ou Press Y ou See 12.8 ft m ( 8) 41.99475 65-538.fm P age 17 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 18

    18 Exam ple : 54 yd = ? m Wei ght Example: 630 lb = ? kg Example: 1 lb = ? k g Y ou Press Y ou See 54 yard m ( M+) 49.3776 Y ou Press Y ou See 630 lb kg (.) 285.768 Y ou Press Y ou See 1 lb kg (.) 0.4536 65-538.fm P age 18 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 19

    19 Vo l u m e Exampl e: 389 ft 3 = ? m 3 Exampl e: 100 ml = ? (US) fl. oz Exampl e: 245 (US) ga l = ? l Yo u P r e s s Yo u S e e 389 ft 3 m 3 (2) 11.015313 Y o u Pres s Y ou See 100 fl. ml (–) 3.3813484 Yo u P r e s s Yo u S e e 245 g al l ( 3) 927.423 oz 65-538.fm P age 19 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 20

    20 T emperature Example: 125°F = ? °C Example: –35°C = ? °F Area Example: 245 ft 2 = ? m 2 Y ou Press Y ou See 125 °F °C ( +/– ) 51.666666 Y ou Press Y ou See 35 +/- °F °C ( +/– ) MINUS - 31. Y ou Press Y ou See 245 ft 2 m 2 ( 5 ) 22.7605 65-538.fm P age 20 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 21

    21 Exampl e: 1540 c m 2 = ? ft 2 Yo u P r e s s Yo u S e e 1540 in 2 cm 2 ( 4 ) 238.70047 65-538.fm P age 21 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 22

    22 CARE T o enjoy your EC -252 Metric Conversion Calculato r for a l ong time: • Keep t he calc ulator dry . If it gets wet, wipe it dry imme diately . • Use and s tore the calcu lator on ly in normal te mperat ure environm ents. • Handle the calcula tor gently and care- fully . Don’t drop i t. • Keep th e calculat or away from dus t and ...

  • Radio Shack EC-252 - page 23

    23 REPLACING THE BATTERY Alth oug h your ca lcula tor us es sol ar p ower most of the tim e, the backup bat tery will even tual ly beco me we ak and need r eplac - ing. If the disp lay spee d slows do wn in a dimly -lit room, rep lace the batte ry with a 389A -type button-c ell batt ery (Rad ioShack Cat. No. 23 -117). Caution: Use only a fresh bat ...

  • Radio Shack EC-252 - page 24

    24 2. Caref ully in sert a smal l, flat-blade screwdriver betwe en the lower case halves, then sl ightly twi st the s crew- driver to separat e the l ower front and back ca se hal ves. 3. Use a screwdriver to gen tly pry out the old batter y . Wa r n i n g : Keep th e battery out of reach of ch ildren. Swallowin g a but- ton-ce ll battery can be fa ...

  • Radio Shack EC-252 - page 25

    25 • Dispos e of the old b attery pr omptly and prop erly . Do not burn or b ury it. 4. Posi tion the new batte ry so the posi- tive (+ ) side is up, then insert it into the batt ery co mp artm ent . 5. Snap the front a nd back case halves back tog ether , then replace the screws . 65-538.fm P age 25 Monday, December 13 , 1999 9:15 AM ...

  • Radio Shack EC-252 - page 26

    26 SPEC IFIC ATIONS Display .... ................. ........... ... 8-Digit LCD Sola r Cell Minimum Illumi nation ................ .. 150 LUX Battery ................... O ne 389A Button -Cell (Cat. No. 23-1 17) Battery Lif e .................... ...... About 1 Y ear Operatio n T empera ture ....... .... 32°–104° F (0°C–40°C) Dimensio ns ... ...

  • Radio Shack EC-252 - page 27

    27 Limited O ne-Y ear W arranty Thi s pr oduct is wa rrant ed by Rad ioSha ck ag ainst manu- facturi ng defects in m at er i al and w o rkman shi p unde r n or- mal us e for o ne (1) yea r from t he dat e of purc hase f rom RadioSh ack c ompan y-owned stores and author ized Ra- dioSha ck franchi sees and dealer s. EXCE PT AS PRO - VIDED HEREIN, Rad ...

  • Radio Shack EC-252 - page 28

    RadioSha ck A Division of T andy Corporat ion Fort Worth, T e xas 76102 07A99 Printed in China ( Continued ) become the p roper ty of Radio Shac k. New or rec ondit ion ed part s and p roduc ts may be use d in th e per- forman ce of war ra nty s ervi ce. R epa ired o r repl ac ed pa rts and pro du cts are w a rranted for the r em a inder of th e or ...

Manufacturer Radio Shack Category Calculator

Documents that we receive from a manufacturer of a Radio Shack EC-252 can be divided into several groups. They are, among others:
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- EC-252 manuals
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Radio Shack EC-252.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Radio Shack EC-252, service manual, brief instructions and user manuals Radio Shack EC-252. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Radio Shack EC-252.

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A complete manual for the device Radio Shack EC-252, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Radio Shack EC-252 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Radio Shack EC-252.

A complete Radio Shack manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Radio Shack EC-252 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Radio Shack EC-252, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Radio Shack EC-252, that we can find in the current document
3. Tips how to use the basic functions of the device Radio Shack EC-252 - which should help us in our first steps of using Radio Shack EC-252
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Radio Shack EC-252
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Radio Shack EC-252 in a specific country, if it was not possible to solve the problem on our own.

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