Advanced Scope Functions; Dual Input Meter; Input A And Input B - Fluke 123 Service Manual

Source
Sensitivity A and B (Fluke 123)
@ DC to 5 MHz
@ 25 MHz
@ 40 MHz
Sensitivity A and B (Fluke 124, 125)
@ DC to 5 MHz
@ 40 MHz
@ 60 MHz
Voltage level error
Slope
Video on A
Modes
Standards
Polarity
Sensitivity

2.2.4 Advanced Scope Functions

Display Modes
Normal
Smooth
Envelope
Auto Set (Connect-and-View
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
Accuracy
Turnover
Normal Mode Rejection (SMR)
A, B, EXT
EXTernal via optically isolated trigger
probe ITP120 (optional accessory)
0.5 divisions or 5 mV
1.5 divisions
4 divisions
0.5 divisions or 5 mV
1.5 divisions
4 divisions
±0.5 div. max.
Positive, Negative
Interlaced video signals only
Lines, Line Select
PAL , NTSC, PAL+, SECAM
Positive, Negative
0.6 divisions sync.
Captures up to 40 ns glitches and displays analog-like persistence
waveform.
Suppresses noise from a waveform.
Records and displays the minimum and maximum of waveforms
over time.
TM
)
500 mV, 5V, 50V, 500V, 1250V
±(0.5% +5 counts)
±12 counts
>60 dB @ 50 or 60 Hz ±1%
Characteristics 2

2.3 Dual Input Meter

2-5