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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Fluke 23, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Fluke 23 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Fluke 23. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Fluke 23 should contain:
- informations concerning technical data of Fluke 23
- name of the manufacturer and a year of construction of the Fluke 23 item
- rules of operation, control and maintenance of the Fluke 23 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Fluke 23 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Fluke 23, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Fluke service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Fluke 23.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Fluke 23 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
77/75/23/2 1 English Instru ction Sheet Page 1 ® 77/75/23/21 Series III Multimeter Instruction Sheet W Read First: Safe ty Information • Never use the m eter if t he meter or t est leads look dama ged. • Be sure the tes t leads an d switc h are in t he correct p osition for the desir ed measurem ent. • Never meas ure resistanc e in a circ ui[...]
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Page 2
77/75/23/2 1 English Instru ction Sheet Page 2 Input Jacks V 600V 1000V FUSED CAT CAT Volts, Ohms, Diode Test Common Terminal Amp Milliamp hc1f.eps See Specific ations for overload protection. Autorange The meter defa u lts to autorange w hen you tur n on the meter. Manual Range Manual rangi ng is available in V ac, V dc, ohms, A ac , and A dc. RAN[...]
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Page 3
77/75/23/2 1 English Instru ction Sheet Page 3 Automatic Touch Hold Mode W Warning To avoid electric shock, do not use the Touch Ho ld mode to determine if a circuit with high voltage i s dead. The Touch Hol d mode will not capture unstable or noisy re adings. The Touch H old mod e automatic ally captures an d displays stable readi [...]
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Page 4
77/75/23/2 1 English Instru ction Sheet Page 4 Standby If the meter is on but is inactive for an ho ur (20 minutes in diode test), the dis play goes blank and displays four bar graph segments . To resume op eration, turn the rotary switc h or press a button. AC and DC Voltage ( K L m L ) RANGE CAT CAT + __ RANGE CAT CAT + _ RANGE CAT CAT + Volts AC[...]
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Page 5
77/75/23/2 1 English Instru ction Sheet Page 5 Diode Test ( G ) RANGE CAT + __ Forward Bias Single Beep RANGE CAT CAT + Reverse Bias _ RANGE CAT CAT + Shorted Open and Good Diode Good Diode Bad Diode _ RANGE CAT CAT + Bad Diode hc5f.eps[...]
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Page 6
77/75/23/2 1 English Instru ction Sheet Page 6 Continuity Test ( R ) RANGE CAT CAT + _ RANGE CAT CAT + _ hc8f.eps If continuity exists (resistance < 210 Ω for Models 21/75 and <270 Ω for Models 23/77), the beeper s ounds c ontinuously. The meter beeps twice if it is in Touc h Hold mode. Current ( ? A ) W Warning To avoid injury, do n [...]
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Page 7
77/75/23/2 1 English Instru ction Sheet Page 7 Probe Holder hc14f.eps Maintenanc e W Warning To avoid electr ic shock, r emove the test lead s before opening t he case, and close the case before using the met er. To prevent fire and possible arc- flash, use fuses w ith ratings shown on the back of the meter. Caution To avoid cont amination or stati[...]
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Page 8
77/75/23/2 1 English Instru ction Sheet Page 8 Battery R epla cement Note Before opening the case, make sure t he test leads are removed and the rotary switch is turned to OFF. hc12f.eps Fuse Replace ment F2 F2 F1 F1 23/77 21/75 hc13f.eps Cleaning To clean the m eter, use a damp cloth and mil d detergent; do not use abrasiv es or solv ents on the m[...]
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Page 9
77/75/23/2 1 English Instru ction Sheet Page 9 Service a nd Part s To contact Fl uke, call one of the follow ing telepho ne numbers: USA and Canada: 1-888-99-FLUKE (1-8 88-993-5853) Europe: +31 402- 678-200 Japan: +81-3- 3434-0181 Singapore: +65- * -276- 6196 Anywhere in the world: +1-425-356-5 500 Or, vis it Fluke’ s Web site at www .fluke.com .[...]
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Page 10
77/75/23/2 1 English Instru ction Sheet Page 10 Electromagnet ic Compatibility In RF field of 3 V/m on all functi ons. Total a ccuracy = Specified a ccura cy + 0.1% of range. Relative Humidity except 32 M Ω range 32 M Ω range only 0% to 90% (0 ° C to 3 5 ° C) 0% to 70% (35 ° C to 50 ° C) 0% to 80% (0 ° C to 35 ° C) 0% to 70% (35 ° C to 5[...]
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Page 11
77/75/23/2 1 English Instru ction Sheet Page 11 Function Range Accuracy L 3.200 V, 32.00 V, 320.0 V 600 V (21/75), 1000 V (23/77) ± (0.3%+1) ± (0.4%+1) m L 320.0 mV ± (0. 3%+1) K (45 to 500 Hz, 3.2 V range. Other ranges 45 to 1 kHz) 3.200 V, 32.00 V, 320.0 V 600 V (21/75), 1000 V (23/77) ± (2%+2) ± (2%+2) 21/75: 23/77: 320.0 Ω 3200 Ω , 32.[...]
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Page 12
77/75/23/2 1 English Instru ction Sheet Page 12 Overload pro tection for all functions and r anges: Rated voltage . Function Input Impedance (Nominal) L , m L , K >10 M Ω , <50 pF Common Mo de Rejection Ratio (1 k Ω Un balanced) Normal Mode Rejection L , m L >120 dB at dc, 50 Hz, or 60 Hz >60 dB at 50 Hz or 60 Hz K >60 dB dc to 6[...]