FLUKE 77, 75, 23, 21 Instruction 电路图.pdf

《FLUKE 77, 75, 23, 21 Instruction 电路图.pdf》由会员分享，可在线阅读，更多相关《FLUKE 77, 75, 23, 21 Instruction 电路图.pdf（12页珍藏版）》请在收音机爱好者资料库上搜索。

1、77/75/23/21 English Instruction Sheet Page 1 77/75/23/21 Series III Multimeter Instruction Sheet W Read First: Safety Information Never use the meter if the meter or test leads look damaged. Be sure the test leads and switch are in the correct position for the desired measurement. Never measure resi

2、stance in a circuit when power is applied. Never touch the probes to a voltage source when the test leads are plugged into the 10 A or 300 mA input jack. Never apply more than the rated voltage between any input jack and earth ground. Be careful when working with voltages above 60 V dc or 30 V ac rm

3、s. Such voltages pose a shock hazard. Keep your fingers behind the finger guards on the test probes when making measurements. WWarning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator (M) appears. Symbols W

4、Read First: Safety Information Y Dangerous Voltage May Be Present T Double Insulation Overvoltage Installation Category per IEC 1010: CAT II CAT III Typical locations include; main wall outlets, local appliances, and portable equipment. Typical locations include switches in the fixed installation an

5、d equipment for industrial use permanently connected to the fixed installation. PN 650512 August 1997 Rev.2, 7/98 1997, 1998 Fluke Corporation. All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies RadioFans.CN 收音机爱 好者资料库 77/75/23/21 English Instructio

6、n 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 in V ac, V dc, ohms, A ac, an

7、d A dc. RANGE CAT CAT + _ RANGE MANUAL MANUAL Momentary hc11f.eps To return to autorange, press for 1 second or turn the rotary switch. RadioFans.CN 收音机爱 好者资料库 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

8、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 captures and displays stable readings for all functions. Single Beep RANGE + _ RANGE + _ RANGE CAT CAT + HOLDHOLD HOLDHOLD HOLDHOLDHOLDHOLD AUTO Moment

9、ary HOLDHOLD VVV hc4f.eps When the meter captures new input, it beeps and a new reading is displayed. Note Stray voltages can produce a new reading. To exit the Touch Hold mode, press momentarily or turn the rotary switch. Bar Graph The bar graph shows readings relative to the full scale value of th

10、e displayed measurement range and indicates polarity. hc15f.eps RadioFans.CN 收音机爱 好者资料库 77/75/23/21 English Instruction Sheet Page 4 Standby If the meter is on but is inactive for an hour (20 minutes in diode test), the display goes blank and displays four bar graph segments. To resume operation, tu

11、rn the rotary switch or press a button. AC and DC Voltage (K L mL) RANGE CAT CAT + _ RANGE CAT CAT + _ RANGE CAT CAT + Volts ACVolts DC Millivolts DC V V mV hc3f.eps Resistance (e) Turn off the power and discharge all capacitors. An external voltage across a component will give invalid resistance re

12、adings. RANGE CAT CAT + _ hc7f.eps 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 DiodeGood Diode Bad Diode _ RANGE CAT CAT + Bad Diode hc5f.eps 77/75/23/21 English Instruction Sh

13、eet Page 6 Continuity Test ( R ) RANGE CAT CAT + _ RANGE CAT CAT + _ hc8f.eps If continuity exists (resistance 210 for Models 21/75 and 270 for Models 23/77), the beeper sounds continuously. The meter beeps twice if it is in Touch Hold mode. Current (? A) W Warning To avoid injury, do not attempt a

14、current measurement if the open circuit voltage exceeds the rated voltage of the meter. To avoid blowing an input fuse, use the 10 A jack until you are sure that the current is less than 300 mA. Turn off power to the circuit. Break the circuit. (For circuits of more than 10 amps, use a current clamp

15、.) Put the meter in series with the circuit as shown and turn power on. RANGE _ CAT CAT + + 1 2 4 3 A hc10f.eps 77/75/23/21 English Instruction Sheet Page 7 Probe Holder hc14f.eps Maintenance W Warning To avoid electric shock, remove the test leads before opening the case, and close the case before

16、using the meter. To prevent fire and possible arc- flash, use fuses with ratings shown on the back of the meter. Caution To avoid contamination or static damage, do not touch the circuit board without proper static protection. Internal Fuse Test RANGE 10 A 300 mA .5 4-8OKOK OKOK hc9f.eps 77/75/23/21

17、 English Instruction Sheet Page 8 Battery Replacement Note Before opening the case, make sure the test leads are removed and the rotary switch is turned to OFF. hc12f.eps Fuse Replacement F2 F2 F1 F1 23/7721/75 hc13f.eps Cleaning To clean the meter, use a damp cloth and mild detergent; do not use ab

18、rasives or solvents on the meter. 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: +31 402-678-200 Japan: +81-3-3434-0181 Singapore: +65-*-276-6196 Anywhere in the wor

19、ld: +1-425-356-5500 Or, visit Flukes Web site at . ItemDescriptionFluke PN Quan. BT1Battery, 9 V, NEDA 1604/IEC 6F22, or NEDA 1604A/IEC 6LR61 696534 614487 1 F1* Models 21/75: Fuse, F630 mA, 250 V, Min Interrupt Rating 1500 A or IEC 127-1 7406701 F2*Fuse, F11 A, 1000 VAC/DC, Min Interrupt Rating 17

20、kA 9431181 F1* Models 23/77: Fuse, F44/100 A, 1000 VAC/DC, Min Interrupt Rating 10 kA 9431211 F2*Fuse, F11 A, 1000 VAC/DC, Min Interrupt Rating 17 kA 9431181 * For safety, use exact replacement Specifications Accuracy is specified for a period of one year after calibration, at 18C to 28C (64F to 82F

21、) with relative humidity to 90%. AC conversions are ac-coupled, average responding, and calibrated to the RMS value of a sine wave input. Accuracy specifications are given as: (% of reading + number of least significant digits) Maximum Voltage Between any Terminal and Earth Ground Rated voltage Disp

22、layDigital: 3,200 counts, updates 2.5/sec Analog: 31 segments, updates 25/sec Response Time of Digital Display V ac 2 s V dc 1 s 1s to 320 k, 2s to 3.2 M, 10 s to 32 M Operating Temperature0C to 50C Storage Temperature-40C to 60C Temperature Coefficient0.1 x (specified accuracy)/C (28C) 77/75/23/21

23、English Instruction Sheet Page 10 Electromagnetic Compatibility In RF field of 3 V/m on all functions. Total accuracy = Specified accuracy + 0.1% of range. Relative Humidity except 32 M range 32 M range only 0% to 90% (0C to 35C) 0% to 70% (35C to 50C) 0% to 80% (0C to 35C) 0% to 70% (35C to 50C) Al

24、titudeOperating: 2000 meters Storage: 12,000 meters Battery Type9 V NEDA 1604 or 6F22 or 006P, or NEDA 1604A or 6LR61 Battery Life2000 hrs typical with alkaline 1600 hrs typical with carbon zinc Continuity Beeper4096 Hz Shock, Vibrationper MIL-T-PRF 28800F Class III, Sinusoidal, Non Operating Size (

25、H x W x L)3.7 cm x 8.9 - 7.8 cm x 19 cm (1.5 in x 3.5 - 3.1 in x 7.49 in) Weight365 g (12.9 oz) SafetyModels 21/75 Series III: 600 V CAT III, Models 23/77 Series III: 600 V CAT III and 1000 V CAT II per ANSI/ISA S82.01-1994, EN 61010-1: 1993, CSA C22.2 No 1010.1-92, UL 3111-1. EMC RegulationsEN 6132

26、6-1 1997. Certifications/Listings 77/75/23/21 English Instruction Sheet Page 11 FunctionRangeAccuracy L 3.200 V, 32.00 V, 320.0 V 600 V (21/75), 1000 V (23/77) (0.3%+1) (0.4%+1) mL 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

27、V (23/77) (2%+2) (2%+2) ?21/75: 23/77: 320.0 3200 , 32.00 k, 320.0 k 3.200 M 32.00 M 320.0 3200 , 32.00 k, 320.0 k 3.200 M 32.00 M (0.5%+2) (0.5%+1) (0.5%+1) (2%+1) (0.5%+3) (0.5%+1) (0.5%+1) (2%+1) ? ?2.0 V(1% typical) FunctionRangeAccuracyBurden Voltage (typical) ? (45 Hz to 1 kHz) 32.00 mA, 320.0

28、 mA 10.00 A * (2.5%+2) (2.5%+2) 6 mV/mA 50 mV/A A32.00 mA, 320.0 mA 10.00 A * (1.5%+2) (1.5%+2) 6 mV/mA 50 mV/A * 10 A continuous, 20 A for 30 seconds maximum. 77/75/23/21 English Instruction Sheet Page 12 Overload protection for all functions and ranges: Rated voltage. FunctionInput Impedance (Nomi

29、nal) L, mL, K 10 M, 120 dB at dc, 50 Hz, or 60 Hz 60 dB at 50 Hz or 60 Hz K60 dB dc to 60 Hz Open Circuit Test Voltage Full Scale Voltage To 3.2 M32 M e3.1 V dc 2.8 V dc (typical) 440 mV dc 420 mV dc (typical) 1.4 V dc 1.3 V dc (typical) Open Circuit Test Voltage Full Scale Voltage G R3.1 V dc2.0 V dc Short Circuit Current (typical) e 21/75: 400 A 23/77: 300 A G R500 A400 A GVFCurrent (typical) 0.0 V 0.6 V 1.2 V 2.0 V 21/75: 0.5 mA 0.4 mA 0.3 mA 0.1 mA 23/77: 0.4 mA 0.3 mA 0.2 mA 0.1 mA