Fluke 124 User Manual

Page of 83
Specifications
Dual Input Meter
4
65
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 sceen.
Input A and Input B
DC Voltage (VDC)
Ranges........................ 500 mV, 5V, 50V, 500V, 1250V
Accuracy ..........................................
±(0.5% +5 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
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 (excl. test leads or probes) ..........
±(30% +25 counts)
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.
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 ................ 1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz,
 100 kHz,1 MHz, 10 MHz, and 50 MHz (Fluke 123) or
70MHz (Fluke 124)
Frequency Range in Continuous Autoset......................
15 Hz (1 Hz) to 50 MHz