FLUKE 45 Manual Supplement 电路图.pdf

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1、Manual Supplement 1998-2001 Fluke Corporation. All rights reserved. Printed in the U.S.A. Manual Title:45 UserSupplement Issue:2 Part Number:855981Issue Date:5/01 Print Date:January 1989Page Count:8 Revision/Date:4, 7/97 This supplement contains information necessary to ensure the accuracy of the ab

2、ove manual. Enter the corrections in the manual if either one of the following conditions exist: 1.The revision letter stamped on the indicated PCA is equal to or higher than that given with each change. 2. No revision letter is indicated at the beginning of the change. For IEC 61010 1000V, CAT I a

3、Caution identifies conditions and actions that might damage the meter. International electrical symbols used on the meter are shown in the following table. Symbols SymbolMeaning WImportant information. See manual. BAlternating current (AC) FDirect current (DC) DAlternating or direct current (AC or D

4、C) GDiode JGround IFuse TDouble insulation (Protection Class II) PConforms to European Union directives W Warning To avoid possible electric shock or personal injury: Do not use the meter if it is damaged. Before use, inspect the case for cracks or missing plastic. Pay particular attention to the in

5、sulation surrounding the connectors. Inspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace damaged leads. Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the meter serviced. Do not operate the meter around

6、explosive gas, vapor or dust. Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground. RadioFans.CN 收音机爱 好者资料库 45 User Manual Supplement 11/983 Before each use, verify the meters operation by measuring a known voltage. When servici

7、ng the meter, use only specified replacement parts. Use caution when working above 30 V ac rms, 42 V ac peak, or 60 V dc. Such voltages pose a shock hazard. Keep your fingers behind the finger guards on the probe when making measurements. Connect the common test lead before connecting the live test

8、lead. Disconnect the live test lead first. Do not operate the meter with the cover or portions of the cover removed. Connect the meters line power cord to a power receptacle with earth ground. To avoid false readings, which could lead to possible electric shock or personal injury, recharge the meter

9、s battery as soon as the low battery indicator (N) appears. Caution To avoid possible damage to the meter or to equipment under test: Disconnect the power to the circuit under test and discharge all high voltage capacitors before testing resistance, continuity or diodes. Use the proper jacks, functi

10、on and range for your measurement applications. Check the meters fuses, see the Testing Current Input Fuses section before measuring current. On page 2-6, make the following changes: Under Measuring Volts, Resistance, or Frequency, add the following: Note To minimize operator confusion, use first an

11、d second display operation to simultaneously monitor the AC and DC component of a measurement when both are present. Caution To avoid possible damage to the meter or equipment under test, disconnect the power to the circuit under test and discharge all high voltage capacitors before testing resistan

12、ce, continuity or diodes. Manual Supplement45 User 45/01 Under Measuring Current, preceding the first paragraph, add: Caution To avoid possible damage to the meter or equipment under test: Use the proper jacks, function and range for your measurement applications. Check the meters fuses, see the Tes

13、ting Current Input Fuses section before measuring current. Never place the probes across (in parallel with) any circuit or component when the leads are plugged into the mA or A terminal. Never attempt an in-circuit current measurement where the open circuit potential to earth is greater than 1000 V.

14、 Under Diode/ContinuityTesting, preceding the first paragraph, add: Caution To avoid possible damage to the meter or equipment under test, Disconnect the power to the circuit under test and discharge all high voltage capacitors before testing resistance, continuity or diodes. On page 3-2, prior to P

15、RIMARY DISPLAY, add: Note To minimize operator confusion, use first and second display operation to simultaneously monitor the AC and DC component of a measurement when both are present. On page 3-4, under INPUT TERMINALS, in the second paragraph, DELETE: against overloads 45 User Manual Supplement

16、5/015 On page 3-5, replace Table 3-1 with the following: Table 3-1. Maximum Rated Input FunctionInput TerminalsMaximum Rated Input* |zand COM1000 V dc or ac rms and FREQzand COM1000 V ac rms, 2 x 10 7 V-Hz normal mode, or 1 x 10 6 V-Hz common mode (whichever is less) mA D and FREQ100 mA and COM300 m

17、A dc or ac rms protected with 500 mA, 250 V and 440 mA, 1000 V fuses. AB and FREQ10 A and COM10 A dc or ac rms (or 20A dc or ac rms overload for 30 sec. max) protected with 11 A, 1000 V fuse. ezand COM1000 V dc or ac rms on all ranges Gzand COM1000 V dc or ac rms All FunctionsAny terminal to earth10

18、00 V dc or peak ac rms * See specification for functional ranges On page 4-2, under Taking Voltage and Current Measurements Using the Dual Display, preceding the first paragraph, add: Caution To avoid possible damage to the meter or equipment under test: Check the meters fuses, see the Testing Curre

19、nt Input Fuses section before measuring current. Never attempt an in-circuit current measurement where the open circuit potential to earth is greater than 1000 V. The voltage and current measurements must share the same common. On page 6-1 under Current Input Fuses, make the following changes: Repla

20、ce the first bulleted paragraph with the following: The 100 mA input is protected by two fuses. The first fuse, located in the front panel, is rated at 500 mA, 250 V fast blow, 1500 A minimum breaking capacity, IEC-127 Sheet I. The second fuse, located inside the case, is rated at 440 mA, 1000 V, 10

21、,000 A breaking capacity. Use the exact replacements only. Replace the second bulleted paragraph with the following: The 10 A input is protected by a fuse rated at 11 A, 1000 V fast blow, 17,000 A breaking capacity. Use the exact replacement only. Manual Supplement45 User 65/01 On page 6-2, under Te

22、sting Current Input Fuses, following step 3, replace the paragraph with: If the fuse is good, the meter will read between 11 and 15 e. If either mA circuit fuses are blown, the meter will read 10 Me to OL. Check both the front panel fuse and the fuse inside the case. On page 6-3, replace the entire

23、Replacing the 100 mA Input Fuse section with the following: Replacing the 100 mA Fuses W Warning To avoid electrical shock or personal injury: Remove any input signal, test leads, and meters line power cord before replacing any fuse or opening the case. Install ONLY specified replacement fuses with

24、the same speed, current, and voltage rating as shown in Table 6-5. The first 100 mA input fuse is mounted in the front panel input jack (see Figure 6-2). The second fuse is located inside the case on the main pca. To replace the front panel fuse, first unplug the line cord. Then press in on the inpu

25、t jack and turn it 90 degrees counter-clockwise as shown in Figure 6-2. Slide out the fuse holder and fuse. To replace the internal current fuse (1000 V, 440 mA) on the main pca: 1. Remove the single Phillips-head screw on the bottom of the case and the Phillips-head screw on each side of the rear b

26、ezel. W Warning To avoid electrical shock or personal injury: Remove any input signal, test leads, and meters line power cord before replacing any fuse or opening the case. Install ONLY specified replacement fuses with the same speed, current, and voltage ratings as shown in Table 6-5. 2. Remove the

27、 bezel and slip the case back from the front of the meter. The fuse and fuse clip are visible at the front of the main printed circuit assembly (pca) near the input terminals. 3. Carefully remove the fuse and replace it with one rated as listed in Table 6-5. 4. Reverse the disassembly procedure to r

28、eassemble the meter. On page 6-4, replace the WARNING with the following: W Warning To avoid electrical shock or personal injury: Remove any input signal, test leads, and meters line power cord before replacing any fuse or opening the case. Install ONLY specified replacement fuses with the same spee

29、d, current, and voltage ratings as shown in Table 6-5. 45 User Manual Supplement 5/017 On page 6-9/6-10, Table 6-5, make the following changes: Replace the entire F2 entry with: F2 W Fuse, .406 X 1.5, 11 A, 1000 V, Fast 943118 Following the F3 entry, add the following: F5 W Fuse, F44/100 A, 1000 Vac

30、/Vdc943121 Change the Service Manual part number, From: 856042 To:609203 On pages A-6 and A-7, replace the entire Maximum Input section with the following: Maximum Input IEC 664 Installtion Category II. mAProtected with a 500 mA, 250 V (fast blow), 1500 A breaking capacity, IEC-127 SHEET I fuse and

31、a 440 mA, 1000 V, 10,000 A breaking capacity fuse. AProtected with an 11 A, 1000 V, 17,000 A interrupt rating, fast blow fuse. Note Resistance between the COM binding post and the meters internal measuring circuits is approximately .003e On page A-8, Change:Input Protection 500V dc or rms ac on all

32、ranges To: Maximum Rated Input 1000 V dc or rms ac on all ranges On page A-9, Change:Input Protection 500V dc or rms ac on all ranges To: Maximum Rated Input 1000 V dc or rms ac on all ranges On page A-11 make the following changes: Change the Common Mode Voltage specification, From: 1000V dc or pea

33、k ac maximum from any input to earth To: 1000V dc or ac rms maximum from any input to earth Replace the Standards specification with: Safety:Compliant with the following standards: ANSI/ISA S82.01-1994 CAN/CSA-C22.2 No. 1010. 1-92 EN61010.1:1993 to 1000 V Overvoltage Cat I, 600 V Overvoltage Cat II,

34、 and Pollution Degree 2. Meets FCC Part 15 Subpart J. EMC: EN61326-1 (1998) Manual Supplement45 User 85/01 Change #2 On pages 6-6 and 6-7, Table 6-2, in the e function, under the INPUT LEVEL column, in both the Using decades of 3: and Using decades of 1: sections, Change: short To:short* At the bottom of the table, add the following: * Use either 2-wire compensation on the 5700A or the relative (REL) mode on the 45. Change #3 On page A-8, in the OHMS table, under the Max Current Through the Unknown column replace all occurances: From:150 ATo:150 nA and From: 320 ATo:320 nA