Fluke 124 FE 123 & 124 Users Manual - Page 73
Dual Input Meter, Input A and Input B
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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) 4 Specifications Dual Input Meter 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 65