Performance Test; General Information - Fluke Autoranging CombiScope PM3370B Reference Manual

PERFORMANCE TEST

4 PERFORMANCE TEST

4.1 GENERAL INFORMATION

WARNING: Before turning on the instrument, ensure that it has been
installed in accordance with the Installation Instructions,
outlined in Section 2 of the Operation Guide.
This procedure is intended to:
- Check the instrument's specification.
- Be used for incoming inspection to determine the acceptability of newly
purchased instruments and/or recently recalibrated instruments.
- Check the necessity of recalibration after the specified recalibration intervals.
NOTE: The procedure does not check every facet of the instrument's calibration;
rather, it is concerned primarily with those parts of the instrument which
are essential to measurement accuracy and correct operation.
Removing the instrument covers is not necessary to perform this
procedure. All tests are made from the outside of the instrument.
If the test is started shortly after turning on the instrument, steps may be out of
specification, due to insufficient warm up time. Be sure to allow the full warm up
time of 35 minutes (under average conditions).
The tests are made with a stable, well-focused, low-intensity display. Unless
otherwise noted, adjust the intensity, position, and trigger level controls as
needed.
IMPORTANT NOTES
- The input voltage must be supplied to the CH1 input, unless otherwise stated.
Set the MAIN TB TIME/div key pair to a suitable position, unless otherwise
stated.
- Tolerances given are for the instrument under test and do not include test
equipment error. Bear in mind that the test equipment and connecting cables
are properly terminated. In case of high-frequency signals, this termination
must be 50Ω. This is achieved with a 50Ω termination at the end of the cable.
Such termination is not necessary for the PM3394B (all channels), or CH1,
CH2 of the PM3390B; these oscilloscopes feature switchable internal 50Ω
input impedance.
4 - 1