General
Information
WARNING: Before turning on the in
-
strument, ensure that it has been
installed in accordance with the In
-
stallation Instructions outlined in
Chapter 1 of the User's Manual.
This performance procedure is intended for:
–
checking the instrument’s specification.
–
incoming inspection to determine the ac
-
ceptability of newly purchased instruments
and recently recalibrated instruments.
–
checking the necessity of recalibration af-
ter 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 for determining the function of
the instrument.
It is not necessary to remove the instrument
cover to perform this procedure.
Preparations
Power up your instrument at
least 30 minutes before check
-
ing to let it reach normal oper
-
ating temperature. Failure to
do so may result in certain test
steps not meeting equipment specifications.
Performance Check
7-2 General Information
Test Equipment
Type of Equipment Required Specifications
Reference Oscillator
10 MHz, 1
*
10
–8
(e.g. 908) for calibrating the standard oscillator
10 MHz, 1
*
10
–9
(e.g. 909) for calibrating PM6690/_5_ & PM6690/_6_
Voltage Calibrator
DC -50 V to +50 V (e.g. 5500) for calibrating the built-in voltage ref
-
erence, alternatively corresponding DC power supply + DVM with
uncertainty <0.1 %
LF Synthesizer Square/ Sine up to 10 MHz, 10 V
RMS
Pulse Generator 2 ns rise time, 5 V peak, >10 MHz, continuous & one-shot trigger
Oscilloscope 350 MHz, <3% voltage uncertainty
RF Signal Generator 100 MHz to 3 or 8 GHz dep. on prescaler option, 10 MHz ext.ref.
Power Splitter 50 W 6dBBNC
T-piece BNC
Termination 50 W feedthrough BNC
Lowpass Filter 50 kHz (for 1 MW)
BNC Cables 5 to 7 pcs of suitable lengths
Table 7-1 Recommended equipment for calibration and performance check.