Instruction/ maintenance manual of the product 77 Fluke
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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.
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.
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.
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.
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.
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.
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.
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.
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 .
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.
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.
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.
An important point after buying a device Fluke 77 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Fluke 77 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Fluke 77 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Fluke 77 you will learn all the available features of the product, as well as information on its operation. The information that you get Fluke 77 will certainly help you make a decision on the purchase.
If you already are a holder of Fluke 77, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Fluke 77.
However, one of the most important roles played by the user manual is to help in solving problems with Fluke 77. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Fluke 77 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
