Fluke ScopeMeter 123 Service Manual page 20

123
Service Manual
True RMS Voltages (VAC and VAC+DC)
Ranges
Accuracy for 5 to 100% of range
DC Rejection (only VAC)
Common Mode Rejection (CMRR)
Full Scale Reading
Move influence
Peak
Modes
Ranges
Accuracy:
Full Scale Reading
Frequency (Hz)
Ranges
Frequency Range for Continuous Autoset
Accuracy:
Full Scale Reading
2-6
DC coupled:
DC to 60 Hz (VAC+DC)
1 Hz to 60 Hz (VAC)
AC or DC coupled:
60 Hz to 20 kHz
20 kHz to 1 MHz
1 MHz to 5 MHz
5 MHz to 12.5 MHz
5 MHz to 20 MHz
AC coupled with 1:1 (shielded) test leads:
60 Hz (6 Hz with 10:1 probe)
50 Hz (5 Hz with 10:1 probe)
33 Hz (3.3 Hz with 10:1 probe)
10 Hz (1 Hz with 10:1 probe)
Max peak or Min peak
Peak-to-Peak
@1Hz to 1 MHz
@1 MHz to 10 MHz
@10 MHz to 40 MHz
500 mV, 5V, 50V, 500V, 1250V
±(1% +10 counts)
±(1% +10 counts)
±(2.5% +15 counts)
±(5% +20 counts)
±(10% +25 counts)
±(30% +25 counts)
±(30% +25 counts), excluding test leads or
probes
-1.5%
-2%
-5%
-30%
>50 dB
>100 dB @ DC
>60 dB @ 50, 60, or 400 Hz
5000 counts
The reading is independent of any signal
crest factor.
±6 counts max.
Max peak, Min peak, or pk-to-pk
500 mV, 5V, 50V, 500V, 1250V
5% of full scale
10% of full scale
500 counts
1Hz, 10Hz, 100Hz, 1 kHz, 10 kHz,
100 kHz,1 MHz, 10 MHz, 40 MHz
15Hz (1Hz) to 30 MHz
±(0.5% +2 counts)
±(1.0% +2 counts)
±(2.5% +2 counts)
10 000 counts