| Products > Test Equipment |
| Using Fluke 741/744 instead of standard references |
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| klim:
Hi, i got cheap Fluke 741 and 744 and asking myself if it can be used as reliable replacement for standard references like DMMCheckPlus or others. I know Fluke is missing some sources, like: AC Voltage, AC Current but what do you think about? Specification Fluke 744 as Source Accuracy Voltage DC 110.000 mV 0.01%+0.005% * 1.10000 V 0.01%+0.005% * 15.0000 V 0.01%+0.005% * Current DC 22.000 mA (Source) 0.01%+ 0.015% * 22.000 mA (Simulate) 0.02% + 0.03% * Resistance 11.000 Ω 0.01% + 20 mΩ 110.00 Ω 0.01% + 40 mΩ 1.1000 kΩ 0.02% + 500 mΩ 11.000 kΩ 0.03% + 5Ω Frequency 0.00 to 10.99 Hz 0.01 Hz 11.00 to 109.99 Hz 0.1 Hz 110.0 to 1099.9 Hz 0.1 Hz 1100 to 21999 Hz 2 Hz 22.000 to 50.000 kHz 5 Hz DMMCheckPlus Resistance : Four 0.1%, 10ppm precision resistors are included: 100Ω, 1.00KΩ, 10.00KΩ, and 100.0KΩ DC voltage : 5V, ± 0.007% voltage reference DC current : 1mA, ±0.1% current source AC voltage : 5V RMS, bipolar (+5V, -5V) square wave, ±0.1% voltage source AC current : 1mA RMS, ±0.2% current source Frequency : 100Hz, ±0.02% signal source Duty Cycle : 100Hz, 5V RMS, signal source has 50% ± 0.05% duty cycle |
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