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Fluke 123/124/125

Service Manual

6-8

Table 6-4. Optional Accessories

Description

Model Number/Ordering Code

Software & Cable Carrying Case Kit (Supplied with Fluke 123/S,
124/S, 125/S)

Set contains the following parts:
Optically Isolated RS-232/USBAdapter/Cable
Hard Carrying Case. Supplied with Fluke 123/S, 124/S, 125/S
FlukeView

ScopeMeter

Softwarefor Windows

SCC 120

OC4USB
C120
SW90W

Hard Carrying Case

C120

Compact Soft Case

C125

Isolated Trigger Probe

ITP120

Print Adapter Cable for Parallel Printers

PAC91

Содержание ScopeMeter 123

Страница 1: ...Fluke 123 124 125 Industrial ScopeMeter Service Manual 4822 872 05398 March 2007 2007 Fluke Corporation All rights reserved All product names are trademarks of their respective companies...

Страница 2: ...authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center or send the product with a description of the difficulty postage a...

Страница 3: ...1 2 6 General Safety Information 1 4 Characteristics 2 1 2 1 Introduction 2 3 2 2 Dual Input Oscilloscope 2 3 2 2 1 Vertical 2 3 2 2 2 Horizontal 2 4 2 2 3 Trigger 2 4 2 2 4 Advanced Scope Functions...

Страница 4: ...eak Measurements Test 3 20 3 5 13 Input A and B Phase Measurements Test 3 21 3 5 14 Harmonics Fluke 125 3 21 3 5 15 Input A and B High Voltage AC DC Accuracy Test 3 22 3 5 16 Resistance Measurements T...

Страница 5: ...ng the Main PCA Unit 5 5 5 2 6 Removing the Display Assembly 5 6 5 2 7 Removing the Keypad and Keypad Foil 5 6 5 3 Disassembling the Main PCA Unit 5 6 5 4 Reassembling the Main PCA Unit 5 8 5 5 Reasse...

Страница 6: ......

Страница 7: ...Volts AC Measurement Verification Points 3 19 3 4 Input A and B AC Input Coupling Verification Points 3 20 3 5 Volts Peak Measurement Verification Points 3 21 3 6 Phase Measurement Verification Points...

Страница 8: ...4 125 Service Manual vi 4 3 Volt Gain Calibration Points 300V 4 11 4 4 Ohm Gain Calibration Points 4 13 6 1 Final Assembly Parts 6 4 6 2 Main PCA Unit 6 6 6 3 Standard Accessories 6 7 6 4 Optional Acc...

Страница 9: ...cope Output 50 3 10 3 5 Test Tool Input A B to 5500A Normal Output 3 13 3 6 Bargraph Harmonics Ampere 3 22 3 7 Bargraph Harmonics Volt 3 22 3 8 Test Tool Input A B to 5500A Normal Output for 300V 3 23...

Страница 10: ...4 3 HF Gain Calibration Input Connections 4 7 4 4 5500A Scope Output to Input A 4 9 4 5 5500A Scope Output to Input B 4 10 4 6 Volt Gain Calibration Input Connections 300V 4 11 4 7 Volt Gain Calibrat...

Страница 11: ...1 Introduction to Service Manual 1 3 1 2 Safety 1 3 1 2 1 Introduction 1 3 1 2 2 Safety Precautions 1 3 1 2 3 Caution and Warning Statements 1 3 1 2 4 Symbols used in this Manual and on Instrument 1 4...

Страница 12: ......

Страница 13: ...efully before beginning to install and use the instrument The following paragraphs contain information cautions and warnings which must be followed to ensure safe operation and to keep the instrument...

Страница 14: ...d to qualified technicians Safety is likely to be impaired if for example the instrument fails to perform the intended measurements or shows visible damage 1 2 6 General Safety Information Warning Rem...

Страница 15: ...cope Functions 2 5 2 3 Dual Input Meter 2 5 2 3 1 Input A and Input B 2 5 2 3 2 Input A 2 8 2 3 3 Advanced Meter Functions 2 9 2 4 Cursor Readout Fluke 124 125 2 10 2 5 Harmonics Measurements Fluke 12...

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Страница 17: ...equirements for Electrical Equipment for Measurement Control and Laboratory Use Use of this equipment in a manner not specified by the manufacturer may impair protection provided by the equipment 2 2...

Страница 18: ...gle Roll Ranges Normal equivalent sampling Fluke 123 20 ns to 500 ns div equivalent sampling Fluke 124 125 10 ns to 500 ns div real time sampling 1 s to 5 s div Single real time 1 s to 5 s div Roll re...

Страница 19: ...hes and displays analog like persistence waveform Smooth Suppresses noise from a waveform Envelope Records and displays the minimum and maximum of waveforms over time Auto Set Connect and ViewTM Conti...

Страница 20: ...es AC coupled with 1 1 shielded test leads 60 Hz 6 Hz with 10 1 probe 1 5 50 Hz 5 Hz with 10 1 probe 2 33 Hz 3 3 Hz with 10 1 probe 5 10 Hz 1 Hz with 10 1 probe 30 DC Rejection only VAC 50 dB Common M...

Страница 21: ...Width PULSE Frequency Range for Continuous Autoset 15Hz 1Hz to 30 MHz Accuracy 1Hz to 1 MHz 0 5 2 counts 1 MHz to 10 MHz 1 0 2 counts 10 MHz to 40 MHz 2 5 2 counts Full Scale reading 1000 counts Amper...

Страница 22: ...nput A volts and input B amperes Full Scale reading 999 counts VA Vrms x Arms Full Scale Reading 999 counts VA Reactive VAR VA 2 W2 Full Scale Reading 999 counts VPWM Fluke 125 Purpose to measure on p...

Страница 23: ...l resistance cancellation 2 3 3 Advanced Meter Functions Zero Set Set actual value to reference Fast Normal Smooth Meter settling time Fast 1s 1 s to 10 ms div Meter settling time Normal 2s 1 s to 10...

Страница 24: ...Distance Readout in ROLL mode instrument in HOLD Dual Horizontal Lines High Low and Peak Peak Readout Rise or Fall Time Transition Time 0 Level and 100 Level Readout Manual or Auto Leveling Auto Leve...

Страница 25: ...cellaneous Display Size 72 x 72 mm 2 83 x 2 83 in Resolution 240 x 240 pixels Waveform display Vertical 8 divisions of 20 pixels Horizontal 9 6 divisions of 25 pixels Backlight Cold Cathode Fluorescen...

Страница 26: ...via OC4USB optically isolated RS232 USB adapter cable optional using SW90W FlukeView software for Windows 2 8 Environmental Environmental MIL PRF 28800F Class 2 Temperature Operating 0 to 50 C 32 to...

Страница 27: ...9 2 9 Service and Maintenance Calibration Interval 1 Year 2 10 Safety Designed for measurements on 600 Vrms Category III Installations Pollution Degree 2 per ANSI ISA S82 02 01 EN 61010 1 2001 CAN CSA...

Страница 28: ...Fluke 123 124 125 Service Manual 2 14 Figure 2 2 Max Input Voltage v s Frequency for VP40 10 1 Voltage Probe...

Страница 29: ...e 2 MHz to 1 GHz 20 mV div to 50 mV div 10 mV div to 20 mV div 100 mV div to 200 mV div no visible disturbance Test tool ranges not specified in Table 2 1 and Table 2 2 may have a disturbance of more...

Страница 30: ...Fluke 123 124 125 Service Manual 2 16...

Страница 31: ...ency Response Upper Transition Point Test 3 11 3 5 7 Input B Trigger Sensitivity Test 3 12 3 5 8 Input A and B Trigger Level and Trigger Slope Test 3 13 3 5 9 Input A and B DC Voltage Accuracy Test 3...

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Страница 33: ...h and frequency measurement are based on the same measurement principles so only one of these functions needs to be verified 3 2 Equipment Required For Verification The primary source instrument used...

Страница 34: ...alled Allow the 5500A to satisfy its specified warm up period For each test point wait for the 5500A to settle Allow the test tool a minimum of 20 minutes to warm up 3 4 Display and Backlight Test Pro...

Страница 35: ...st pattern is removed the test tool shows Contrast CL 0120 MANUAL 14 Press CAL The test tool shows a light display the test pattern as shown in Figure 3 1 may not be visible or hardly visible Observe...

Страница 36: ...st tool Press to turn the test tool off Press and hold Press and release to turn the test tool on Wait until the test tool has beeped twice and then release When the test tool has beeped twice the RES...

Страница 37: ...yed After changing the time base wait some seconds until the trace has settled Observe the Input A trace and check to see if it returns to the same position after changing the time base The allowed di...

Страница 38: ...A sensitivity on 200 mV div 3 Set the 5500A to source a 5 MHz leveled sine wave of 100 mV peak to peak SCOPE output MODE levsine Set the 5500A to Operate OPR 4 Adjust the amplitude of the sine wave to...

Страница 39: ...y ranging and lock the Input A sensitivity on 200 mV div 3 Set the 5500A to source a leveled sine wave of 1 2V peak to peak 50 kHz SCOPE output MODE levsine Set the 5500A to Operate OPR 4 Adjust the a...

Страница 40: ...MHz Note Duty Cycle and Pulse Width measurements are based on the same principles as Frequency measurements Therefore the Duty Cycle and Pulse Width measurement function will not be verified separatel...

Страница 41: ...on point 1 Connect the test tool to the 5500A as for the previous test see Figure 3 4 2 Select the following test tool setup Turn Input B on if not already on Press to select auto ranging AUTO in top...

Страница 42: ...A to Operate OPR 4 Adjust the amplitude of the sine wave to 0 5 division on the display 5 Verify that the signal is well triggered If it is not press to enable the up down arrow keys for Trigger Level...

Страница 43: ...e Input A and Input B ground level indicated by zero icon to the center grid line Proceed as follows Press to enable the arrow keys for moving the Input A ground level Press to enable the arrow keys f...

Страница 44: ...ion until the test tool is triggered and the traces are shown 6 Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is triggered To repeat the test start at step 3 7 Set the 5500...

Страница 45: ...owly in 0 1V steps using the 5500A EDIT FIELD function until the test tool is triggered and the traces are shown 22 Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is trigger...

Страница 46: ...on 10 ms div Fluke 123 124 press to open the SCOPE INPUTS menu Fluke 123 124 press to open the SCOPE OPTIONS menu and choose SCOPE MODE NORMAL WAVEFORM MODE SMOOTH Fluke 125 press to open MENU Fluke...

Страница 47: ...0 mV div 500 mV 150 mV 148 7 to 151 3 100 mV div 500 mV 300 mV 298 0 to 302 0 200 mV div 500 mV 500 mV 497 0 to 503 0 500 mV 497 0 to 503 0 0 mV 000 5 to 000 5 500 mV div 5V 1 5V 1 487 to 1 513 1 V di...

Страница 48: ...RE on A Vac Press to open the INPUT B MEASUREMENTS menu and choose INPUT B ON MEASURE on B Vac Move the Input A and Input B ground level indicated by zero icon to the center grid line Proceed as follo...

Страница 49: ...t tool setup Use the setup of the previous step AUTO time base traces at vertical center Using select 200 mV div for Input A and B 500 mV range Fluke 123 124 press to open the SCOPE INPUTS menu and ch...

Страница 50: ...de before making any connection between the calibrator and the test tool Proceed as follows to test the Volts Peak measurement function 1 Connect the test tool to the 5500A as for the previous test se...

Страница 51: ...nect the test tool to the 5500A as for the previous test see Figure 3 5 2 Select the following test tool setup Press to select auto ranging AUTO in top of display Press to open the INPUT A MEASUREMENT...

Страница 52: ...8 Press to two times to activate HARMONICS VOLT menu 9 Check if the bargraphs of VOLT HARMONICS look like the the ones in Figure 3 7 10 When you are finished set the 5500A to Standby Figure 3 6 Bargra...

Страница 53: ...S menu and choose INPUT B ON MEASURE on B Vdc Move the Input A and Input B ground level indicated by zero icon to the center grid line Proceed as follows Press to enable the arrow keys for moving the...

Страница 54: ...7 0 to 503 0 500V DC 497 0 to 503 0 500V 60Hz 494 0 to 506 0 500V 10 kHz 486 0 to 514 0 500V div 1250V 600V 10 kHz 0 570 to 0 630 600V 60Hz 0 584 to 0 616 600V DC 0 592 to 0 608 600V DC 0 592 to 0 608...

Страница 55: ...y Table 3 8 Resistance Measurement Verification Points 5500A output Reading 0 000 0 to 000 5 400 397 1 to 402 9 4 k 3 971 to 4 029 40 k 39 71 to 40 29 400 k 397 1 to 402 9 4 M 3 971 to 4 029 30 M 29 7...

Страница 56: ...Ensure that the 5500A is in Standby 2 Select the following test tool setup Press to open the INPUT A MEASUREMENTS menu and choose MEASURE on A CAP Press to select auto ranging AUTO in top of display...

Страница 57: ...t tool input connections 00 00 to 00 10 see steps 7 10 3 5 20 Video Trigger Test This test is based upon use of a TV signal generator If you have a Fluke 5500A Calibrator with 600 MHz Oscilloscope Opt...

Страница 58: ...EO on A From the shown VIDEO TRIGGER menu choose SYSTEM NTSC or PAL or SECAM LINE SELECT POLARITY POSITIVE Fluke 125 press to open MENU Fluke 125 Press to open the TRIGGER menu and choose VIDEO on A F...

Страница 59: ...2 for PAL or SECAM see Figure 3 11 525 for NTSC see Figure 3 12 Note Numerical readings in the pictures shown below may deviate from those shown in the test tool display during verification PAL622 BMP...

Страница 60: ...uke PM9081 001 and a Banana Jack to BNC adapters Fluke PM9082 001 as shown in Figure 3 15 ST8142 WMF Figure 3 15 Test Tool Input A to TV Signal Generator Inverted 8 Select the following test tool setu...

Страница 61: ...ut A sensitivity to 200 mV div Using select 20 s div 9 Using select the line number 310 for PAL or SECAM 262 for NTSC 10 Observe the trace and check to see if the test tool triggers on line number 311...

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Страница 63: ...st Calibration Adjustment 4 6 4 5 Warming Up Pre Calibration 4 7 4 6 Final Calibration 4 7 4 6 1 HF Gain Input A B 4 7 4 6 2 Delta T Gain Trigger Delay Time Pulse Adjust Input A 4 9 4 6 3 Pulse Adjust...

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Страница 65: ...tment procedure is identical for Fluke 123 124 and 125 4 1 2 Calibration number and date When storing valid calibration data in FlashROM after performing the calibration adjustment procedure the calib...

Страница 66: ...PM9081 001 Male BNC to Dual Female BNC Adapter 1x Fluke PM9093 001 4 3 Starting Calibration Adjustment Follow the steps below to start calibration adjustments 1 Power the test tool via the power adapt...

Страница 67: ...tering this step the calibration process is not started The calibration data of this step are valid This means that the last time this step was done the calibration process was successful It does not...

Страница 68: ...ng adjust the display to the maximum darkness at which the test pattern is only just visible 4 Press to select the default contrast calibration The display shows Contrast CL 0110 MANUAL 5 Press CAL Th...

Страница 69: ...procedure takes about 60 minutes 3 Wait until the display shows End Precal READY 4 Continue at Section 4 6 4 6 Final Calibration You must always start the Final Calibration at the first step of Secti...

Страница 70: ...ibration status READY 12 Press to select the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration points Table 4 2 13 When you a...

Страница 71: ...Delta T Gain Trigger Delay Time Pulse Adjust Input A Proceed as follows to do the calibrations 1 Press to select calibration step Delta T CL 0700 IDLE 2 Connect the test tool to the 5500A as shown in...

Страница 72: ...the 5500A to operate OPR 5 Press to start the calibration 6 Wait until the display shows Pulse Adj B CL 0660 READY 7 When you are finished set the 5500A to Standby 8 Continue at Section 4 6 4 4 6 4 G...

Страница 73: ...calibration point and start the calibration Continue through all calibration points of Table 4 3 8 Set the 5500A to Standby and continue with step 9 Table 4 3 Volt Gain Calibration Points 300V Cal st...

Страница 74: ...to select calibration adjustment step Volt Zero CL 0820 IDLE 2 Terminate Input A and Input B with the BB120 and a 50 or lower termination 3 Press to start the zero calibration of all mV d settings CL...

Страница 75: ...until the display shows the calibration status READY 7 Press to select the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration...

Страница 76: ...stment step Cap High CL 0910 IDLE 8 Set the 5500A to supply 50 mV DC 9 Press to start the calibration 10 Wait until the display shows Cap High CL 910 READY 11 Set the 5500A to Standby 12 Continue at S...

Страница 77: ...ve all test leads from the test tool inputs Do NOT turn off the test tool 2 Press EXIT The test tool will display Calibration data is valid Save data and EXIT maintenance Note Calibration data valid i...

Страница 78: ...on data Press YES The test tool will show the message The test tool needs calibration Please contact your service center at power on The calibration date and number will not be updated A complete reca...

Страница 79: ...5 2 2 Removing the Battery Pack 5 3 5 2 3 Removing the Bail 5 3 5 2 4 Opening the Test Tool 5 3 5 2 5 Removing the Main PCA Unit 5 5 5 2 6 Removing the Display Assembly 5 6 5 2 7 Removing the Keypad a...

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Страница 81: ...d 10 Torx screwdrivers Cotton gloves to avoid contaminating the lens and the PCA 5 2 2 Removing the Battery Pack Referring to Figure 5 1 use the following procedure to remove the battery pack 1 Loosen...

Страница 82: ...Fluke 123 124 125 Service Manual 5 4 ST8014 EPS Figure 5 1 Fluke 123 124 125 Main Assembly...

Страница 83: ...can be easily pulled out Caution To avoid contaminating the flex cable contacts with oil from your fingers do not touch the contacts or wear gloves Contaminated contacts may not cause immediate instru...

Страница 84: ...the following procedure to remove the keypad and the keypad foil 1 Remove the display assembly see Section 5 2 6 2 Remove the keypad foil Notice the four keypad foil positioning pins in the top case 3...

Страница 85: ...that the rings are present when reassembling the main PCA unit Caution To avoid contaminating the main PCA with oil from your fingers do not touch the contacts or wear gloves A contaminated PCA may no...

Страница 86: ...t are of the latest type and do not need the yellow tubes in the top case Remove the tube from both notches when installing a new display assembly Transfer the tubes to the new top case if you replace...

Страница 87: ...tabs in the top case 9 Install the main PCA unit and re attach the cables Secure the flat cables in the connectors with the connector latches Keep the backlight wires twisted to minimize interference...

Страница 88: ...Fluke 123 124 125 Service Manual 5 10...

Страница 89: ...of Replaceable Parts Title Page 6 1 Introduction 6 3 6 2 How to Obtain Parts 6 3 6 3 Service Centers 6 3 6 4 Final Assembly Parts 6 4 6 5 Main PCA Unit Parts 6 6 6 6 Service Tools 6 7 6 7 Accessory Re...

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Страница 91: ...ntact an authorized Fluke service center To locate an authorized service center refer to the second page of this manual back of the title page In the event that the part ordered has been replaced by a...

Страница 92: ...y assembly 5322 135 00029 7 keypad 5322 410 10397 8 keypad foil 5322 276 13711 9 keyboard pressure plate 5322 466 10963 10 combiscrew M3x10 5322 502 21507 11 bottom case 5322 442 00273 12 combiscrew M...

Страница 93: ...List of Replaceable Parts 6 4 Final Assembly Parts 6 6 5 ST8014 EPS Figure 6 1 Fluke 123 124 125 Final Assembly...

Страница 94: ...0 5322 502 21507 3 insulator for power input 5322 325 10163 5 main PCA shielding box 5322 466 10976 6 guide piece for optical gate LEDs 5322 256 10201 7 main PCA shielding plate 5322 466 10964 8 screw...

Страница 95: ...apter complying with the applicable National Requirements must be used PM8907 801 PM8907 803 PM8907 804 PM8907 806 PM8907 807 PM8907 808 Set of two Shielded Test Leads Red and Gray designed for use on...

Страница 96: ...th Fluke 123 S 124 S 125 S Set contains the following parts Optically Isolated RS 232 USBAdapter Cable Hard Carrying Case Supplied with Fluke 123 S 124 S 125 S FlukeView ScopeMeter Softwarefor Windows...

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