Fluke 125B/S Calibration Guide - Page 13
Dual Input Meter, Trigger, Advanced Scope Functions, Input A and Input B
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Industrial ScopeMeter Specifications Time Base Accuracy Equivalent sampling 0.4 % + 0.025 time/div) Real time sampling 0.1 % + 0.025 time/div) Glitch Detection 25 ns @ 20 ns to 60 s/div Horizontal Move 12 divisions, trigger point can be positioned anywhere across the screen Trigger Screen Update Free Run, On Trigger Source A, B Sensitivity A and B @ DC to 5 MHz 0.5 divisions or 5 mV @ 40 MHz 125B, 124B 1.5 divisions 123B 4 divisions @ 60 MHz 125B, 124B 4 divisions 123B NA Slope Positive, Negative Advanced Scope Functions Display Modes Normal Captures up to 25 ns glitches and displays analog-like persistence waveform. Glitch Off Does not capture glitches between samples. Smooth Suppresses noise from a waveform. Envelope Records and displays the minimum and maximum of waveforms over time. Auto Set (Connect-and-View) Continuous fully automatic adjustments of amplitude, time base, trigger levels, trigger gap, and hold-off. Manual override by user adjustment of amplitude, time base, or trigger level. 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. Input A and Input B DC Voltage (VDC) Ranges 500 mV, 5 V, 50 V, 500 V, 750 V Accuracy 0.5 % + 5 counts) Normal Mode Rejection (SMR 60 dB @ 50 Hz or 60 Hz ±0.1 % Common Mode Rejection (CMRR 100 dB @ DC >60 dB @ 50 Hz, 60 Hz, or 400 Hz Full Scale Reading 5000 counts True RMS Voltages (VAC and VAC+DC) Ranges 500 mV, 5 V, 50 V, 500 V, 750 V 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 (without test leads or probes 30 % + 25 counts) 5