1. DL manuals
  2. Calculated Industries
  3. Calculator
  4. ElectriCalc Pro 5060
  5. User Manual

Calculated Industries ElectriCalc Pro 5060 User Manual

Other manuals for ElectriCalc Pro 5060: User Manual
Manual is about: NEC COMPLIANT UPDATEABLE ELECTRICAL CODE CALCULATOR

Summary of ElectriCalc Pro 5060

  • Page 1

    User’s guide e lectri c al c ® p ro m odel 5060 e lectri c alc ® p ro m–r/c c onstruction m aster ® m + ac + / – π dc res wire res milli – eqgrnd d/r size instrip sefuse starter cond type m–type 125% pf% eff% 90 ° 75 ° ind/sync 1Ø 3Ø amb ° cu/al 60 ° frair prefs √ ___ x x 2 2 8 3 0 4 5 6 7 9 1 on/c ...

  • Page 2

    5060-ug-b-composite 4/4/03 12:37 pm page 2.

  • Page 3: User’S Guide — 1

    User’s guide — 1 introducing the electricalc ® pro now nec ® -updateable! The electricalc ® pro is an invaluable calculator for today’s busy electrical professional. Unlike a regular calcula- tor, it has intuitively labeled “electrical keys” and conforms to the 2002 and future national electrical co...

  • Page 4: 2 — Electricalc Pro

    2 — electricalc pro the electricalc pro instantly solves for the following: ♦ volts, amps, volt-amps, watts, kva, kw, pf%, eff%, and dc resistance ♦ copper or aluminum wire sizes ♦ parallel & derated wire sizes ♦ voltage drop wire sizes, % and actual voltage drops, voltage drop distances and wire re...

  • Page 5: User’S Guide — 3

    User’s guide — 3 table of contents installing nec updates . . . . . . . . . . . . . .4 key definitions . . . . . . . . . . . . . . . . . . .5 preference settings . . . . . . . . . . . . . . .26 default settings . . . . . . . . . . . . . . . . .27 basic math operations . . . . . . . . . . . . .28 per...

  • Page 6: 4 — Electricalc Pro

    4 — electricalc pro installing nec updates your electricalc pro is now updateable for future national electrical code ® editions that are updated every three (3) years (next code update is 2005). To upgrade your unit, follow the instruc- tions below: 1) purchase the nec update from ci (see pricing &...

  • Page 7: User’S Guide — 5

    User’s guide — 5 key definitions standard calculator functions [on/c] — on/clear turns on power. Pressing once clears the last entry and the display. Pressing twice clears all non-permanent values. [off] — off turns all power off. Clears the memory and most internal registers. [+] [–] [x] [÷] [=] ar...

  • Page 8: 6 — Electricalc Pro

    6 — electricalc pro [set] — second function accesses the secondary functions shown above the keys when pressed prior to selection. [stor] — store used to store values when pressed just before a storage register (i.E., m+, amps, voltage, etc.). Displays: stor. [rcl] — recall recalls a value stored in...

  • Page 9: User’S Guide — 7

    User’s guide — 7 [stor] [0] — cumulative memory adds displayed value to memory (e.G., 10 [m+], 20 [m+], [rcl] [m+] = 30). Clears when the calculator is shut off. [rcl] [0] — memory recall displays the value saved in (m+). [rcl] [rcl] — display/clear memory displays and clears the value saved in (m+)...

  • Page 10: 8 — Electricalc Pro

    8 — electricalc pro [set] [3] — three-phase (3Ø) sets calculator to three-phase mode. Displays: 3Ø. [set] [2] — ambient temperature (amb°) permanently enters ambient tempera- ture for determining ampacity derived wire sizes. Ambient temperature will only change when entering a new value or by resett...

  • Page 11: User’S Guide — 9

    User’s guide — 9 [set] [5] — free air (frair) sets calculator into free air mode, which refers to nec table 310-17 for wire size calculations. Displays: frair. [set] [6] — 60°c wire insulation sets calculator to 60°c wire insulation type for wire size calculations. This is the default setting. Displ...

  • Page 12: 10 — Electricalc Pro

    10 — electricalc pro [amps] — amps enters or calculates amps (using volts and va or watts). Displays: amps, kamp or mamp. [volts] — volts enters or calculates volts (using amps, hpth, and va or watts). Default value is 240 volts. Displays: volt, kv, or mv. [set] [volts] — dc resistance calculates an...

  • Page 13: User’S Guide — 11

    User’s guide — 11 [hpth] — horsepower (theoretical) enters or calculates theoretical horse- power (based on amps, va, watts, efficiency%, pf%, and/or volts). 1.0 hpth correlates to 746 watts at 100% efficiency. Displays: hpth. [set] [hpth] — efficiency enters or calculates the percent ratio between ...

  • Page 14: 12 — Electricalc Pro

    12 — electricalc pro [set] [8] — induction/ synchronous motor toggle toggles between induction and syn- chronous motor types. Displays: sync (synchronous) or ind (induction - de- fault). [hpmotor] — motor horsepower enters or calculates motor horsepower. Displays: sync hp (synchronous) or hp ind (in...

  • Page 15: User’S Guide — 13

    User’s guide — 13 ♦ first press if a wire length has been entered, the first press will show the larger of the ampacity or voltage drop derived wire size. The calculator will use the larger value when calculations require a wire size. If no voltage drop length has been entered, the calculator will d...

  • Page 16: 14 — Electricalc Pro

    14 — electricalc pro [parsz] — parallel size used to find the size of parallel conduc- tors using amperage and an entered quantity of wires. Parallel wire size computations smaller than 1/0 are dis- played as “none” (display shows “none”) as the nec does not allow parallel wire runs smaller than 1/0...

  • Page 17: User’S Guide — 15

    User’s guide — 15 ♦ first press calculates the derated wire size, if you have entered the number of wires, for example, 4 [set] [parsz]). Displays: d/r wire size. ♦ second press displays the maximum adjusted am- pacity of the derated wire size. Displays: d/r wire a. ♦ third press displays the derate...

  • Page 18: 16 — Electricalc Pro

    16 — electricalc pro [vd%] — percent voltage drop used to enter or calculate voltage drop. The default voltage drop is 3%. If wire size or wire length values are not avail- able, “none” will display since the volt- age drop cannot be found. ♦ first press enters a maximum allowable voltage drop perce...

  • Page 19: User’S Guide — 17

    User’s guide — 17 ground function keys [grnd] — ground an output-only key used to find the grounding electrode conductor size for ac systems based on nec table 250-66 and an entered or calculated service-entrance conductor (largest size). Only actual wire sizes are con- sidered valid entries. ♦ firs...

  • Page 20: 18 — Electricalc Pro

    18 — electricalc pro [set] [grnd] — equipment ground (eqgrnd) this function uses nec table 250-122 to compute the minimum equipment grounding conductor size, given an entered amperage rating or setting for a over-current device up line (i.E., 300 [set] [grnd]). Note: this function deviates from the ...

  • Page 21: User’S Guide — 19

    User’s guide — 19 fuse/breaker keys the electricalc pro has special keys that automatically calculate the amp ratings of the following over-current protection devices: dual element fuses (time delay), single element fuses (non-time delay), instantaneous trip breakers (type 1), inverse time breakers ...

  • Page 22: 20 — Electricalc Pro

    20 — electricalc pro ♦ first press displays the current motor type. Note there is no motor type in single-phase mode. ♦ second press in three-phase mode only, subsequent presses of [o-load] will select and display the next motor type from this list: sq-c non-e (squirrel cage, non- design e), sq-c e ...

  • Page 23: User’S Guide — 21

    User’s guide — 21 ♦ second press displays the full-load current percent multiplier value used to determine fuse size. Subsequent presses repeat this cycle. Displays: %flc. [set] [invtime] — instantaneous trip circuit breaker ♦ first press displays the minimum amp rating for an instantaneous trip cir...

  • Page 24: 22 — Electricalc Pro

    22 — electricalc pro [o-load] — overload protection ♦ first press displays the overload amperage re- quirement based on the full-load cur- rent shown on the motor nameplate. Multiplies the entered motor nameplate full-load current (stored in the [amps] registers) by 115% or the value you enter. Conf...

  • Page 25: User’S Guide — 23

    User’s guide — 23 conduit sizing keys the electricalc pro calculates conduit size using nec tables 1, 3, 4, and 5 of chapter 9 (given insulation type, wire size, and quantity of wires). It will also calculate the number of wires of a specified insulation type and wire size that will fit in a defined...

  • Page 26: 24 — Electricalc Pro

    24 — electricalc pro ♦ third press shows total cross-sectional area of all entered wires of the selected wire insu- lation. Displays: ttl wire area. [condsz] — conduit size used to find conduit sizes based on the total area of the entered wire types and sizes (up to 15 at one time). If the quantity ...

  • Page 27: User’S Guide — 25

    User’s guide — 25 ♦ third press shows fill percentage for the calculated conduit size as determined by table 1, chapter 9. Displays: cond fill %. ♦ fourth press shows the total wire area for all entered wires. Displays: fill ttl wire area. ♦ fifth press shows remaining fill area. This value may be n...

  • Page 28: 26 — Electricalc Pro

    26 — electricalc pro preference settings your calculator has the following pref- erence settings that you can access and change at any time. Reach the preference function by pressing [set] [÷]. Then, to access each category, press the [÷] key until the desired setting is reached. Within each categor...

  • Page 29: User’S Guide — 27

    User’s guide — 27 default settings when you first receive your calculator, it is pre-set to the default settings listed below. You can always return your calculator to these default values with an all-clear ([set] [x]). Ambient temperature 30°c insulation rating 60°c material copper (cu) phase 3Ø vo...

  • Page 30: 28 — Electricalc Pro

    28 — electricalc pro basic math operations this calculator uses standard chaining logic, which simply means that you enter your first value, the operator (+, –, x, ÷), the second value and then the equals sign (=). A. 3 [+] 2 [=] 5 b. 3 [–] 2 [=] 1 c. 3 [x] 2 [=] 6 d. 3 [÷] 2 [=] 1.5 percent calcula...

  • Page 31: User’S Guide — 29

    User’s guide — 29 memory functions whenever the [stor] [0] (m+) keys are pressed, the displayed value will be added to memory. A list of memory keystrokes/functions is provided below: function keystrokes add to memory [stor] [0] display total in memory [rcl] [0] display & clear memory [rcl] [rcl] cl...

  • Page 32: 30 — Electricalc Pro

    30 — electricalc pro kerchoff’s law the electricalc pro utilizes kerchoff’s law in finding volts, amps, volt-amps, watts, horsepower (theoretical), effi- ciency and power factor. Finding voltage find the voltage supply to a single- phase load drawing 14,605 volt-amps and 115 amps. Steps keystrokes d...

  • Page 33: User’S Guide — 31

    User’s guide — 31 finding current load a building with 120/240 volt 1Ø service has the following loads: range = 7,800 va heating = 15,100 va dryer = 5,100 va appliances = 8,900 va lighting = 6,470 va what is the service load (amps) of the circuit supplying this building? Steps keystrokes display cle...

  • Page 34: 32 — Electricalc Pro

    32 — electricalc pro finding volt-amps what is the va rating for a 120 volt, 22 amp, 1Ø circuit? What is the kva rat- ing? Steps keystrokes display clear calculator [on/c] [on/c] 0. Set to 1-phase [set] [1] 1 ph enter volts 120 [volts] 120. Volt enter amps 22 [amps] 22. Amps solve volt-amps [va] 2,6...

  • Page 35: User’S Guide — 33

    User’s guide — 33 finding wattage a 120 volt single-phase 45 amp electri- cal motor has an 87% power factor. What is its wattage? Steps keystrokes display clear calculator [on/c] [on/c] 0. Set to 1-phase [set] [1] 1 ph enter volts 120 [volts] 120. Volt set power fact % 87 [set] [watts] 87. Pf% enter...

  • Page 36: 34 — Electricalc Pro

    34 — electricalc pro motor horsepower the electricalc pro can calculate the full load current (amps) of a motor, based on phase, voltage and motor (synchronous or induction). It uses nec tables 430-148 and 430-150 to determine the motor full load current. (if you enter a value for hp or voltage that...

  • Page 37: User’S Guide — 35

    User’s guide — 35 finding single-phase full load current a 2 hp induction motor operates on 230 volt, single-phase power. What is the full load current for this motor? Steps keystrokes display reset calculator [on/c] 0. Set to 1-phase [set] [1] 1 ph enter volts 230 [volts] 230. Volt enter hpind 2 [h...

  • Page 38: 36 — Electricalc Pro

    36 — electricalc pro finding synchronous motor horsepower a synchronous motor is defined as having a 27 amp load on a 240 volt, 3Ø circuit. What is its horsepower? Steps keystrokes display reset calculator [on/c] 0. Set to synch. [set] [8] 0. Sync enter volts 240 [volts] 240. Volt enter amps 27 [amp...

  • Page 39: User’S Guide — 37

    User’s guide — 37 wire sizing based on insulation rating wiring is being installed in a 240 volt, single-phase system rated at 30 kva. What is the wire size needed if you use 60°c copper wire? Steps keystrokes display clear calculator [on/c] [on/c] 0. Set to 1-phase [set] [1] 1 ph set to 60˚c [set] ...

  • Page 40: 38 — Electricalc Pro

    38 — electricalc pro wire sizing based on ambient temperature find the 90°c aluminum wire size needed to connect a 47,700 volt-amp load to a 240 volt, single-phase source. What is the adjusted wire size, if the ambient temperature rating is changed from the default 30°c to 40°c? Steps keystrokes dis...

  • Page 41: User’S Guide — 39

    User’s guide — 39 wire sizing based on material type find the wire size for a 75°c copper wire carrying a 3Ø load of 265 amps. What is the equivalent aluminum wire size? Steps keystrokes display reset calculator [set] [x] [on/c] 0. Set to 75°c [set] [7] 3Ø 75 cu 0. Enter amps 265 [amps] 265. Amps fi...

  • Page 42: 40 — Electricalc Pro

    40 — electricalc pro (cont’d) steps keystrokes display reset calculator [set] [x] [on/c] 0. Set free air mode [set] [5] 3Ø 60 frair cu 0. Enter amps 500 [amps] 500. Amps find 1 wire size [wiresz] 500 cu awg wire size find 2 wire size 2 [parsz] 000 cu par wire size find 3 wire size 3 [parsz] 0 cu par...

  • Page 43: User’S Guide — 41

    User’s guide — 41 sizing temperature-adjusted derated wires a circuit was built with 90°c aluminum wire connecting a 47,650 volt-amp load to a 240 volt, single-phase source. Ambient temperature is 50°c. What is the derated wire size required if eight current-carrying thhn wires were in- stalled in t...

  • Page 44: 42 — Electricalc Pro

    42 — electricalc pro voltage drop the reduction in voltage between the power source and the load can be de- termined by entering the phase, volts, amps, wire material, voltage drop wire size and length of run. The calculator determines resistance and then the voltage reduction. Voltage drop can be d...

  • Page 45: User’S Guide — 43

    User’s guide — 43 important note on voltage drop calculations the electricalc pro calculates voltage drop and wire size using dc resistance as defined by the 2002 nec. To find the voltage drop for a specific wire size, you must first enter amps and the one- way wire length (and other required variab...

  • Page 46: 44 — Electricalc Pro

    44 — electricalc pro finding three-phase voltage drop a 20-amp three-phase load is being fed by a 230-volt source located 150 feet away. The installation specifications require 75°c #10 thw stranded copper conduc-tor. What is the voltage drop on this branch circuit? Steps keystrokes display reset ca...

  • Page 47: User’S Guide — 45

    User’s guide — 45 finding voltage drop wire size a 20-amp single-phase 208-volt load will be located 175 feet away from the source. Assuming a 3% allowable volt- age drop, what is the size of 75°c con- ductor re-quired for this branch circuit? Steps keystrokes display reset calculator [on/c] 0. Set ...

  • Page 48: 46 — Electricalc Pro

    46 — electricalc pro finding voltage drop distance how far from a single-phase 240-volt source can you install a 15 amp load using 60°c #10 al branch circuit con- ductors? Assume a 3% allowable volt- age drop. Steps keystrokes display reset calculator [set] [x] [on/c] 0. Set to 1-phase [set] [1] 1 p...

  • Page 49: User’S Guide — 47

    User’s guide — 47 finding voltage drop resistance what is the resistance of 85 feet of #2 90°c copper conductor? Steps keystrokes display reset calculator [set] [x] [on/c] 0. Set to 90°c mode [set] [9] 3Ø 90 cu 0. Enter wire size 2 [wiresz] 2 cu awg wire size find resistance [set] [length] 0.2033993...

  • Page 50: 48 — Electricalc Pro

    48 — electricalc pro ground conductor wire size you can use single or multiple service entrance conductor(s) to find the grounding electrode conductor for ac systems. When using multiple conduc- tors, the electricalc pro uses the equivalent circular mils to find the grounding electrode conductor (ba...

  • Page 51: User’S Guide — 49

    User’s guide — 49 equip. Grounding conductor wire size the [set] [grnd] keystroke can be used to find the grounding conductor size for raceways and “over-current devices in circuit ahead” equipment. The calcula- tor uses the displayed amperage value to solve for the equipment grounding conductor bas...

  • Page 52: 50 — Electricalc Pro

    50 — electricalc pro fuse and circuit breaker size what is the computed dual element and single element fuse size for a 230 volt, 3-phase, 50 hp induction motor? What are the instantaneous trip and inverse time circuit breaker require- ments? Steps keystrokes display reset calculator [on/c] 0. Enter...

  • Page 53: User’S Guide — 51

    User’s guide — 51 starter size what nema size starter is required for a 575 volt, 3Ø, 20 hp induction motor? Steps keystrokes display reset calculator [on/c] 0. Enter volts 575 [volts] 575. Volt enter hp 20 [hpmotor] 20. Hp ind solve for starter size [set] [hpmotor] 2 star size overload protection s...

  • Page 54: 52 — Electricalc Pro

    52 — electricalc pro conduit size the electricalc pro can calculate the size of conduit required when running single or multiple wires using the [condsz] key and the calculator’s inter- nal tables. The calculator uses nec values for area of thw, thhn, and xhhw wires. When using the actual wire areas...

  • Page 55: User’S Guide — 53

    User’s guide — 53 finding motor branch-circuit wire size & conduit size — same wire type & size what size thhn copper wire & rmc conduit are needed to connect a 10 hp 1Ø induction motor to a 115 volt source? Steps keystrokes display reset calculator [set] [x] [on/c] 0. Set to 1-phase [set] 1 1 ph en...

  • Page 56: 54 — Electricalc Pro

    54 — electricalc pro note: if a wire size has been calculated or stored, and the wire type/quantity is not defined, the calculator will assume 2 thhn wires for 1Ø and 3 thhn wires for 3Ø when calculating conduit size. Finding conduit sizes for multi- ple conductors — same wire type & size find the m...

  • Page 57: User’S Guide — 55

    User’s guide — 55 finding number of wires in ex- isting conduit — same size, various types find the maximum number of #10 thhn copper wires that can be pulled through an existing 3” emt conduit. How many xhhw wires? How many thw wires? Steps keystrokes display clear calculator [on/c] [on/c] 0. Enter...

  • Page 58: 56 — Electricalc Pro

    56 — electricalc pro sectional area of wires, conduit size and actual fill area? (use [thhn] for thwn; the cross-sectional areas are the same.) steps keystrokes display clear calculator [on/c] [on/c] 0. Set to 75° [set] [7] 1Ø cu 75 0. Enter cond. Type 3 [set] [condsz] none fmc cond enter 1st wire s...

  • Page 59: User’S Guide — 57

    User’s guide — 57 error codes the error codes for the electricalc pro are listed below (note: to clear an error, simply press any key): error description 1 display register overflow (answer too large to fit display) 2 invalid or out-of-scale entry 3 pf or eff calculated above 100% 4 conduit size bey...

  • Page 60: 58 — Electricalc Pro

    58 — electricalc pro 2002 nec references table 250-66 table 250-122 table 310-15(b)(2)(a) table 310-16 table 310-17 chapter 9, table 1, 4, 5 and 8 section 430-32 table 430-148 table 430-150 table 430-152 appendix c updating future code revisions this model is updateable for future nec editions. For ...

  • Page 61: User’S Guide — 59

    User’s guide — 59 settings permanent values/settings values and settings maintained in per- manent memory can only be changed (1) by pressing [set] [x] (resets calcula- tor to default settings), or (2) by chang- ing each one or all of these settings. The following are permanent values: (1) selectabl...

  • Page 62: 60 — Electricalc Pro

    60 — electricalc pro warranty warranty repair service – u.S.A. Calculated industries, inc. (“ci”) war- rants this product against defects in materials and workmanship for a period of one (1) year from the date of original consumer purchase in the u.S. If a defect exists during the warranty pe- riod,...

  • Page 63: User’S Guide — 61

    User’s guide — 61 please provide an explanation of the service requirement, your name, ad- dress, day phone number and dated proof of purchase (typically a sales receipt). If the product is over 90 days old, include payment of $6.95 for return shipping and handling within the con- tiguous 48 states....

  • Page 64: 62 — Electricalc Pro

    62 — electricalc pro repair service – outside the u.S.A. Not all countries have ci authorized service providers or the same warranty and service policies. To obtain warranty or non-warranty repair service for goods purchased outside the u.S., contact the dealer through which you initially pur- chase...

  • Page 65: User’S Guide — 63

    User’s guide — 63 incidental, or consequential damages resulting from any defect in the product or its documentation. The warranty, disclaimer, and remedies set forth above are exclusive and re- place all others, oral or written, ex- pressed or implied. No ci dealer, agent, or employee is authorized...

  • Page 66: 64 — Electricalc Pro

    64 — electricalc pro legal notices software copyrighted and licensed to calculated industries, inc. By specialty calculator technologies, llc, 2002. User’s guide is copyrighted by calcu- lated industries, inc., 2002. Electricalc and calculated industries are registered trademarks of calculated indus...

  • Page 67

    5060-ug-b-composite 4/4/03 12:37 pm page 67.

  • Page 68

    Printed in china 5060-ug-b • 2/02 5060-ug-b-composite 4/4/03 12:37 pm page 68.