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"Fluke 123维修手册：英文版完整服务指南 1997年版权所有"

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The Fluke 123 Industrial ScopeMeter Service Manual, an English version published in August 1997 and revised in January 2000, is a comprehensive guide for the maintenance and repair of the Fluke 123 Industrial ScopeMeter. All rights reserved by Fluke Corporation, with printing done in the Netherlands. The manual provides detailed information on servicing the ScopeMeter, including troubleshooting, calibration, and replacement of parts. For those in need of servicing or repairs, authorized service centers can be located by visiting the Fluke website or calling the provided phone numbers. The Fluke 123 Industrial ScopeMeter is a trademarked product of Fluke Corporation and is designed for industrial applications. The manual includes a table of contents outlining different chapters, which cover various aspects of servicing the ScopeMeter. Overall, the Fluke 123 Industrial ScopeMeter Service Manual is an essential resource for technicians and engineers working with this equipment. It provides detailed instructions and guidance on maintaining and repairing the ScopeMeter, ensuring its optimal performance and longevity. This manual is a valuable tool for anyone using the Fluke 123 Industrial ScopeMeter in industrial settings.

Characteristics

2.1 Introduction

2-3

2.1 Introduction

Performance Characteristics

FLUKE guarantees the properties expressed in numerical values with the stated

tolerance. Specified non-tolerance numerical values indicate those that could be

nominally expected from the mean of a range of identical ScopeMeter test tools.

Environmental Data

The environmental data mentioned in this manual are based on the results of the

manufacturer’s verification procedures.

Safety Characteristics

The test tool has been designed and tested in accordance with Standards ANSI/ISA

S82.01-1994, EN 61010-1 (1993) (IEC 1010-1), CAN/CSA-C22.2 No.1010.1-92

(including approval), UL3111-1 (including approval) Safety Requirements 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 Dual Input Oscilloscope

2.2.1 Vertical

Frequency Response

DC Coupled:

excluding probes and test leads: DC to 20 MHz (-3 dB)

with STL120 1:1 shielded test leads: DC to 12.5 MHz (-3 dB)

DC to 20 MHz (-6 dB)

with PM8918 10:1 probe: DC to 20 MHz (-3 dB)

(optional accessory)

AC Coupled (LF roll off):

excluding probes and test leads <10 Hz (-3 dB)

with STL120 <10 Hz (-3dB)

with PM8918 <1 Hz (-3 dB)

Rise Time

excluding probes and test leads <17.5 ns

Input Impedance

excluding probes and test leads 1 MΩ//12 pF

with BB120 1 MΩ//20 pF

with STL120 1 MΩ//225 pF

with PM8918 10 MΩ//15 pF

Sensitivity 5 mV to 500 V/div

Display Modes A, -A, B, -B

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2-4

Max. Input Voltage A and B

direct or with test leads 600 Vrms

with BB120 300 Vrms

(For detailed specifications see “2.7 Safety”)

Max. Floating Voltage

from any terminal to ground 600 Vrms, up to 400Hz

Resolution 8 bit

Vertical Accuracy ±(1% + 0.05 range/div)

Max. Vertical Move ±4 divisions

Max. Base Line Jump After 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 20 ns to 500 ns/div

real time sampling 1 µs to 5 s/div

Single (real time) 1 µs to 5 s/div

Roll (real time) 1s to 60 s/div

Sampling Rate (for both channels simultaneously)

Equivalent sampling (repetitive signals) up to 1.25 GS/s

Real time sampling:

1 µs to 5 ms/div 25 MS/s

10 ms to 5 s/div 5 MS/s

Time Base Accuracy

Equivalent sampling ±(0.4% +0.04 time/div)

Real time sampling ±(0.1% +0.04 time/div)

Glitch Detection ≥40 ns @ 20 ns to 5 ms/div

≥200 ns @ 10 ms to 60 s/div

Glitch detection is always active.

Horizontal Move 10 divisions

Trigger point can be positioned anywhere

across the screen.

2.2.3 Trigger

Screen Update Free Run, On Trigger

Source A, B, EXT

EXTernal via optically isolated trigger

probe ITP120 (optional accessory)

Characteristics

2.3 Dual Input Meter

2-5

Sensitivity A and B

@ DC to 5 MHz 0.5 divisions or 5 mV

@ 25 MHz 1.5 divisions

@ 40 MHz 4 divisions

Voltage level error ±0.5 div. max.

Slope Positive, Negative

Video on A Interlaced video signals only

Modes Lines, Line Select

Standards PAL , NTSC, PAL+, SECAM

Polarity Positive, Negative

Sensitivity 0.6 divisions sync.

2.2.4 Advanced Scope Functions

Display Modes

Normal Captures up to 40 ns glitches 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

Continuous fully automatic adjustment of amplitude, time base, trigger levels, trigger

gap, and hold-off. Manual override by user adjustment of amplitude, time base, or

trigger level.

2.3 Dual Input Meter

The accuracy of all measurements is within ± (% of reading + number of counts) from

18 °C to 28 °C.

Add 0.1x (specific accuracy) for each °C below 18 °C or above 28 °C. For voltage

measurements with 10:1 probe, add probe uncertainty +1%.

More than one waveform period must be visible on the screen.

2.3.1 Input A and Input B

DC Voltage (VDC)

Ranges 500 mV, 5V, 50V, 500V, 1250V

Accuracy ±(0.5% +5 counts)

Turnover ±12 counts

Normal Mode Rejection (SMR) >60 dB @ 50 or 60 Hz ±1%

Common Mode Rejection (CMRR) >100 dB @ DC

>60 dB @ 50, 60, or 400 Hz

Full Scale Reading 5000 counts

Move influence ±6 counts max.

123

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2-6

True RMS Voltages (VAC and VAC+DC)

Ranges 500 mV, 5V, 50V, 500V, 1250V

Accuracy for 5 to 100% of range

DC coupled:

DC to 60 Hz (VAC+DC) ±(1% +10 counts)

1 Hz to 60 Hz (VAC) ±(1% +10 counts)

AC or DC coupled:

60 Hz to 20 kHz ±(2.5% +15 counts)

20 kHz to 1 MHz ±(5% +20 counts)

1 MHz to 5 MHz ±(10% +25 counts)

5 MHz to 12.5 MHz ±(30% +25 counts)

5 MHz to 20 MHz ±(30% +25 counts), excluding test leads or

probes

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 Mode Rejection (CMRR) >100 dB @ DC

>60 dB @ 50, 60, or 400 Hz

Full Scale Reading 5000 counts

The reading is independent of any signal

crest factor.

Move influence ±6 counts max.

Peak

Modes Max peak, Min peak, or pk-to-pk

Ranges 500 mV, 5V, 50V, 500V, 1250V

Accuracy:

Max peak or Min peak 5% of full scale

Peak-to-Peak 10% of full scale

Full Scale Reading 500 counts

Frequency (Hz)

Ranges 1Hz, 10Hz, 100Hz, 1 kHz, 10 kHz,

100 kHz,1 MHz, 10 MHz, 40 MHz

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 10 000 counts

剩余169页未读，继续阅读

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