Automatic Scope Measurements - Fluke 190 Series II User Manual

Fluke 190 Series II
Users Manual

Automatic Scope Measurements

The accuracy of all readings 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
accuracy, see section '10:1 Probe' on page 127. At least
1.5 waveform period must be visible on the screen.
General
Inputs.............................................................A, B, C and D
DC Common Mode Rejection (CMRR) .................. >100 dB
AC Common Mode Rejection at 50, 60, or 400 Hz ...... >60 dB
DC Voltage (VDC)
Maximum Voltage
with 10:1 probe ..................................................... 1000 V
direct (1:1)............................................................... 300 V
Maximum Resolution
with 10:1 probe ........................................................ 1 mV
direct (1:1)............................................................. 100 µV
Full Scale Reading............................................. 999 counts
Accuracy at 5 s to 10 μs/div
2 mV/div......................................... ±(1.5 % + 10 counts)
5 mV/div to 100 V/div ........................ ±(1.5 % + 5 counts)
Normal Mode AC Rejection at 50 or 60 Hz ............. >60 dB
114
AC Voltage (VAC)
Maximum Voltage
with 10:1 probe...................................................1000 V
direct (1:1) ............................................................300 V
Maximum Resolution
with 10:1 probe......................................................1 mV
direct (1:1) ..........................................................100 µV
Full Scale Reading ..........................................999 counts
Accuracy
DC coupled:
DC to 60 Hz................................ ±(1.5 % +10 counts)
AC coupled, low frequencies:
50 Hz direct (1:1)....................... ±(1.5 % + 10 counts)
60 Hz direct (1:1)....................... ±(1.9 % + 10 counts)
With the 10:1 probe the low frequency roll off point will
be lowered to 2 Hz, which improves the AC accuracy
for low frequencies. When possible use DC coupling
for maximum accuracy.
AC or DC coupled, high frequencies:
60 Hz to 20 kHz......................... ±(2.5 % + 15 counts)
20 kHz to 1 MHz........................... ±(5 % + 20 counts)
1 MHz to 25 MHz........................ ±(10 % + 20 counts)
For higher frequencies the instrument's frequency roll
off starts affecting accuracy.
Normal Mode DC Rejection.............................>50 dB