Fluke 21 - Manuals - manualsarea.com

Page 2 - Amp; See Specifications for overload protection.; Autorange; The meter defaults to autorange when you turn on the meter.; Manual Range; Momentary; To return to autorange, press

77/75/23/21 English Instruction Sheet Page 2 Input Jacks V 600V 1000V FUSED CAT CAT Volts, Ohms, Diode Test Common Terminal Amp Milliamp hc1f.eps See Specifications for overload protection. Autorange The meter defaults to autorange when you turn on the meter. Manual Range Manual ranging is available...

Page 3 - Warning; To avoid electric shock, do not use the Touch Hold; Bar Graph

77/75/23/21 English Instruction Sheet Page 3 Automatic Touch Hold  Mode W Warning To avoid electric shock, do not use the Touch Hold  mode to determine if a circuit with high voltage is dead. The Touch Hold  mode will not capture unstable or noisy readings. The Touch Hold  mode automatically cap...

Page 4 - Volts AC

77/75/23/21 English Instruction Sheet Page 4 Standby If the meter is on but is inactive for an hour (20 minutes in diodetest), the display goes blank and displays four bar graphsegments. To resume operation, turn the rotary switch or press abutton. AC and DC Voltage ( K L m L ) RANGE CAT CAT + _ _ R...

Page 5 - Page

77/75/23/21 English Instruction 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

Page 6 - meter beeps twice if it is in Touch Hold

77/75/23/21 English Instruction 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 sounds continuously. The meter beeps twice if it is in Touch Hold  mode. Current (...

Page 7 - Caution; Internal Fuse Test; OK

77/75/23/21 English Instruction Sheet Page 7 Probe Holder hc14f.eps Maintenance W Warning To avoid electric shock, remove the test leadsbefore opening the case, and close the case beforeusing the meter. To prevent fire and possible arc-flash, use fuses with ratings shown on the back ofthe meter. Cau...

Page 8 - Battery Replacement; Note; Fuse Replacement

77/75/23/21 English Instruction Sheet Page 8 Battery Replacement Note Before opening the case, make sure the test leads areremoved and the rotary switch is turned to OFF. hc12f.eps Fuse Replacement F2 F2 F1 F1 23/77 21/75 hc13f.eps Cleaning To clean the meter, use a damp cloth and mild detergent; do...

Page 9 - Service and Parts; To contact Fluke, call one of the following telephone numbers:; Item; Specifications; Accuracy specifications are given as:; Rated voltage

77/75/23/21 English Instruction Sheet Page 9 Service and Parts To contact Fluke, call one of the following telephone numbers: USA and Canada: 1-888-99-FLUKE (1-888-993-5853)Europe: +31 402-678-200Japan: +81-3-3434-0181Singapore: +65- * -276-6196 Anywhere in the world: +1-425-356-5500 Or, visit Fluke...

Page 12 - Overload protection for all functions and ranges: Rated voltage.; Function

77/75/23/21 English Instruction Sheet Page 12 Overload protection for all functions and ranges: Rated voltage. Function Input Impedance (Nominal) L , m L , K >10 M Ω , <50 pF Common ModeRejection Ratio(1 k Ω Unbalanced) Normal Mode Rejection L , m L >120 dB at dc,50 Hz, or 60 Hz >60 dB a...