Service Manual
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All rights reserved. Printed in the Netherlands All product names are trademarks of their respective companies. 123/124 Industrial ScopeMeter Service Manual 4822 872 05389 February 2003 © 2003 Fluke Corporation.
All rights reserved. Printed in the Netherlands All product names are trademarks of their respective companies. 123/124 Industrial ScopeMeter Service Manual 4822 872 05389 February 2003 © 2003 Fluke Corporation.
Service Manual
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SERVICE CENTERS To locate an authorized service center, visit us on the World Wide Web: http://www.fluke.com or call Fluke using any of the phone numbers listed below: +1-888-993-5853 in Europe +1-425-446-5500 from other countries and Canada +31-402-675-200 in U.S.A.
SERVICE CENTERS To locate an authorized service center, visit us on the World Wide Web: http://www.fluke.com or call Fluke using any of the phone numbers listed below: +1-888-993-5853 in Europe +1-425-446-5500 from other countries and Canada +31-402-675-200 in U.S.A.
Service Manual
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... 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 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 2-9 2.5 Miscellaneous 2-9 2.6 Environmental 2-11 2.7 Service and Maintenance 2-12 2.8 Safety ...2-12 2.9 EMC Immunity 2-14 Circuit Descriptions 3-1 3.1 Introduction 3-3 3.2 Block Diagram 3-3 3.2.1 Channel A, Channel B Measurement Circuits 3-4 3.2.2 Trigger Circuit 3-4 3.2.3 Digital Circuit 3-5 3.2.4 Power Circuit 3-6
... 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 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 2-9 2.5 Miscellaneous 2-9 2.6 Environmental 2-11 2.7 Service and Maintenance 2-12 2.8 Safety ...2-12 2.9 EMC Immunity 2-14 Circuit Descriptions 3-1 3.1 Introduction 3-3 3.2 Block Diagram 3-3 3.2.1 Channel A, Channel B Measurement Circuits 3-4 3.2.2 Trigger Circuit 3-4 3.2.3 Digital Circuit 3-5 3.2.4 Power Circuit 3-6
Service Manual
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... 5.6.7 Gain Ohm 5-13 5.6.8 Capacitance Gain Low and High 5-14 5.6.9 Capacitance Clamp & Zero 5-14 5.6.10 Capacitance Gain 5-15 5.7 Save Calibration Data and Exit 5-15 123/124 Service Manual 3.2.5 Start-up Sequence, Operating Modes 3-7 3.3 Detailed Circuit Descriptions 3-9 3.3.1 Power Circuit 3-9 3.3.2 Channel A -
... 5.6.7 Gain Ohm 5-13 5.6.8 Capacitance Gain Low and High 5-14 5.6.9 Capacitance Clamp & Zero 5-14 5.6.10 Capacitance Gain 5-15 5.7 Save Calibration Data and Exit 5-15 123/124 Service Manual 3.2.5 Start-up Sequence, Operating Modes 3-7 3.3 Detailed Circuit Descriptions 3-9 3.3.1 Power Circuit 3-9 3.3.2 Channel A -
Service Manual
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... addition to the safety precautions specified in this manual. Recycling information Disposal information 1-3 To avoid electrical shock, do not service the instrument unless you are marked on Instrument Read the safety information in the Users Manual Equal potential inputs, connected internally... Warning Statements Caution Used to indicate correct operating or maintenance procedures to prevent damage to be found throughout the manual. Warning Servicing described in this manual is essential that requires correct procedures or practices to keep the instrument in a safe condition. Specific ...
... addition to the safety precautions specified in this manual. Recycling information Disposal information 1-3 To avoid electrical shock, do not service the instrument unless you are marked on Instrument Read the safety information in the Users Manual Equal potential inputs, connected internally... Warning Statements Caution Used to indicate correct operating or maintenance procedures to prevent damage to be found throughout the manual. Warning Servicing described in this manual is essential that requires correct procedures or practices to keep the instrument in a safe condition. Specific ...
Service Manual
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... can hold their charge even if the instrument has been separated from line power. Components which can be gained by components obtained through your local FLUKE organization. Safety is likely to be impaired if, for the safety of the instrument may only be referred to expose live parts and accessible terminals... off and disconnected from all voltage sources before it is likely that safety has been impaired, the instrument must be dangerous to life. 123/124 Service Manual 1.5 Impaired Safety Whenever it is opened.
... can hold their charge even if the instrument has been separated from line power. Components which can be gained by components obtained through your local FLUKE organization. Safety is likely to be impaired if, for the safety of the instrument may only be referred to expose live parts and accessible terminals... off and disconnected from all voltage sources before it is likely that safety has been impaired, the instrument must be dangerous to life. 123/124 Service Manual 1.5 Impaired Safety Whenever it is opened.
Service Manual
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Chapter 2 Characteristics Title Page 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 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 2-9 2.5 Miscellaneous 2-9 2.6 Environmental 2-11 2.7 Service and Maintenance 2-12 2.8 Safety ...2-12 2.9 EMC Immunity 2-14 2-1
Chapter 2 Characteristics Title Page 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 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 2-9 2.5 Miscellaneous 2-9 2.6 Environmental 2-11 2.7 Service and Maintenance 2-12 2.8 Safety ...2-12 2.9 EMC Immunity 2-14 2-1
Service Manual
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... changing time base or sensitivity Normal & Single mode ±0.04 divisions (= ±1 pixel) 2.2.2 Horizontal Scope Modes Normal, Single, Roll Ranges Normal: equivalent sampling (Fluke 123) equivalent sampling (Fluke 124) real time sampling 20 ns to 500 ns/div 10 ns to 500 ns/div 1 µs to 5 s/div Single (real time) 1 µs to...) Input Voltage A and B Direct, with test leads, or with VP40 Probe 600 Vrms with BB120 300 Vrms (For detailed specifications see "2.8 Safety") Max. 123/124 Service Manual Display Modes A, -A, B, -B Max.
... changing time base or sensitivity Normal & Single mode ±0.04 divisions (= ±1 pixel) 2.2.2 Horizontal Scope Modes Normal, Single, Roll Ranges Normal: equivalent sampling (Fluke 123) equivalent sampling (Fluke 124) real time sampling 20 ns to 500 ns/div 10 ns to 500 ns/div 1 µs to 5 s/div Single (real time) 1 µs to...) Input Voltage A and B Direct, with test leads, or with VP40 Probe 600 Vrms with BB120 300 Vrms (For detailed specifications see "2.8 Safety") Max. 123/124 Service Manual Display Modes A, -A, B, -B Max.
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... of full scale Full Scale Reading 500 counts Frequency (Hz) Ranges 1Hz, 10Hz, 100Hz, 1 kHz, 10 kHz, 100 kHz, 1 MHz, 10 MHz, and 50 MHz (Fluke 123) or 70 MHz (Fluke 124). 123/124 Service Manual Full Scale Reading 5000 counts Move influence ±6 counts max.
... of full scale Full Scale Reading 500 counts Frequency (Hz) Ranges 1Hz, 10Hz, 100Hz, 1 kHz, 10 kHz, 100 kHz, 1 MHz, 10 MHz, and 50 MHz (Fluke 123) or 70 MHz (Fluke 124). 123/124 Service Manual Full Scale Reading 5000 counts Move influence ±6 counts max.
Service Manual
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123/124 Service Manual Full Scale Reading Phase Modes Range Accuracy Resolution 2.3.2 Input A Ohm (Ω) Ranges Accuracy Full Scale Reading 500Ω to 5 MΩ 30 MΩ Measurement Current ...
123/124 Service Manual Full Scale Reading Phase Modes Range Accuracy Resolution 2.3.2 Input A Ohm (Ω) Ranges Accuracy Full Scale Reading 500Ω to 5 MΩ 30 MΩ Measurement Current ...
Service Manual
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123/124 Service Manual Waveform display: Vertical Horizontal Backlight Power External: Input Voltage Power Input Connector Internal Battery Pack BP120 (Fluke 123): Battery Power Operating Time Charging Time 8 divisions of 20 pixels 9.6 divisions of 25 pixels Cold Cathode Fluorescent (CCFL) via ... tool off 60 hours with test tool on 12 ... 19 hours with refresh cycle Allowable ambient temperature during charging Memory Number of Screen + Setup Memories Fluke 123 Fluke 124 Mechanical Size Weight 0 to 45 °C (32 to 113 °F) 10 20 232 x 115 x 50 mm (9.1 x 4.5 x 2 in) 1.2 kg (2.5 lbs),...
123/124 Service Manual Waveform display: Vertical Horizontal Backlight Power External: Input Voltage Power Input Connector Internal Battery Pack BP120 (Fluke 123): Battery Power Operating Time Charging Time 8 divisions of 20 pixels 9.6 divisions of 25 pixels Cold Cathode Fluorescent (CCFL) via ... tool off 60 hours with test tool on 12 ... 19 hours with refresh cycle Allowable ambient temperature during charging Memory Number of Screen + Setup Memories Fluke 123 Fluke 124 Mechanical Size Weight 0 to 45 °C (32 to 113 °F) 10 20 232 x 115 x 50 mm (9.1 x 4.5 x 2 in) 1.2 kg (2.5 lbs),...
Service Manual
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Maximum Input Voltage vs Frequency ST8112.CGM 123/124 Service Manual Enclosure Protection IP51, ref: IEC529 2.7 Service and Maintenance Calibration Interval 1 Year 2.8 Safety Designed for measurements on input, with leads, with VP40 With Banana-to 400Hz 2-12 Figure 2-1. Input Voltage Input A and B ...
Maximum Input Voltage vs Frequency ST8112.CGM 123/124 Service Manual Enclosure Protection IP51, ref: IEC529 2.7 Service and Maintenance Calibration Interval 1 Year 2.8 Safety Designed for measurements on input, with leads, with VP40 With Banana-to 400Hz 2-12 Figure 2-1. Input Voltage Input A and B ...
Service Manual
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...Ω to 30 MΩ 50 nF to 500 µF 500 mV to 1250V 500Ω to 30 MΩ 50 nF to 2-3. 123/124 Service Manual 2.9 EMC Immunity The Fluke 123/124, including standard accessories, conforms with the EEC directive 89/336 for EMC immunity, as defined by IEC1000-4-3, with the addition of...
...Ω to 30 MΩ 50 nF to 500 µF 500 mV to 1250V 500Ω to 30 MΩ 50 nF to 2-3. 123/124 Service Manual 2.9 EMC Immunity The Fluke 123/124, including standard accessories, conforms with the EEC directive 89/336 for EMC immunity, as defined by IEC1000-4-3, with the addition of...
Service Manual
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... Channel A can be selected as described above. These voltages can do all measurements, whereas Channel B does not provide resistance, diode, and capacitance measurements. 123/124 Service Manual 3.2.1 Channel A, Channel B Measurement Circuits The Channel A and Channel B circuit are calculated. The only difference is done by the T-ASIC. 3.2.2 Trigger Circuit The T ASIC selects...
... Channel A can be selected as described above. These voltages can do all measurements, whereas Channel B does not provide resistance, diode, and capacitance measurements. 123/124 Service Manual 3.2.1 Channel A, Channel B Measurement Circuits The Channel A and Channel B circuit are calculated. The only difference is done by the T-ASIC. 3.2.2 Trigger Circuit The T ASIC selects...
Service Manual
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123/124 Service Manual drivers, and a fluorescent back light lamp. The back light supply voltage is controlled by a logic circuit in the P-ASIC derives a +12V voltage from LCD ...
123/124 Service Manual drivers, and a fluorescent back light lamp. The back light supply voltage is controlled by a logic circuit in the P-ASIC derives a +12V voltage from LCD ...
Service Manual
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...=H MAINVAL=L Operational & Charge Mode TURN OFF TURN ON Charge Mode BATTVOLT < 4V or AutoShutDown or TURN OFF Battery refresh MAINVAL=L Figure 3-2. Fluke 123/124 Start-up screen. 123/124 Service Manual Battery Refresh In the following the start up Sequence, Operating Modes Table 3-2 shows an overview of the test tool operating modes...
...=H MAINVAL=L Operational & Charge Mode TURN OFF TURN ON Charge Mode BATTVOLT < 4V or AutoShutDown or TURN OFF Battery refresh MAINVAL=L Figure 3-2. Fluke 123/124 Start-up screen. 123/124 Service Manual Battery Refresh In the following the start up Sequence, Operating Modes Table 3-2 shows an overview of the test tool operating modes...
Service Manual
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... is supplied to reference resistor R516 (VADALOW pin 8). If a charged battery pack is installed, VBAT is loaded, the mask software will become active. 123/124 Service Manual 3-10 As described in Section 3.2.5, the test tool operating mode depends on , the mask software starts up. For test purposes the mask active mode...
... is supplied to reference resistor R516 (VADALOW pin 8). If a charged battery pack is installed, VBAT is loaded, the mask software will become active. 123/124 Service Manual 3-10 As described in Section 3.2.5, the test tool operating mode depends on , the mask software starts up. For test purposes the mask active mode...
Service Manual
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... FLYGATE SIGNAL V554 "ON" V554 "OFF" Figure 3-5. In this resistor exceeds a certain value, the P-ASIC turns FET V554 off will be switched off. 123/124 Service Manual loading C503 and C555 just after connecting the power adapter) via its Vgs (gate-source voltage) must be negative with respect to VCHDRIVE.
... FLYGATE SIGNAL V554 "ON" V554 "OFF" Figure 3-5. In this resistor exceeds a certain value, the P-ASIC turns FET V554 off will be switched off. 123/124 Service Manual loading C503 and C555 just after connecting the power adapter) via its Vgs (gate-source voltage) must be negative with respect to VCHDRIVE.
Service Manual
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... if the previous input voltage step caused the comparator output to transform the variable, regulated voltage into a high voltage AC output (V601, T600). 123/124 Service Manual 3-14 on . The back light converter generates the 300-400 Vpp ! The comparator output SLOWADC is provided by the D-ASIC provides a pulse width modulated...
... if the previous input voltage step caused the comparator output to transform the variable, regulated voltage into a high voltage AC output (V601, T600). 123/124 Service Manual 3-14 on . The back light converter generates the 300-400 Vpp ! The comparator output SLOWADC is provided by the D-ASIC provides a pulse width modulated...