NF FRA5022, Instruction Manual

Page: 126 / 145

7.4 Checking Version Number
FRA5022
7-3
7.4 Checking Version Number
The version number of your
FRA5022
is displayed after power-on for a few seconds at the
center of the screen under the model name. The version number can be retrieved by using
the query
“
*
IDN? ” .
About commands

“5. REMOTE CONTROL”
7.5 Checking Isolation
In
FRA50022
, each of the oscillator output or analyzer inputs are separetely isolated from
the case.
By using a resistance meter (including tester or multimeter, etc), check that the resistance
between each of the external conductors of BNC connectors on the front panel and the
grounding terminal on the left bottom of the front panel is 10MΩ or more. Also check the
resistance between the BNC connectors in the same manner.
7.6 Checking Oscillator Output Wave Form
Connection: OUTPUT OSCILLATOR
→
oscilloscope input (input impedance 1M
Ω
)
Settings: After initializing the settings, press the ON AC/DC key with Frequency 1kHz
and Amplitude 7.07Vrms.
Measurement: Measure the oscilloscope wave form.
Evaluation: Correct if it is a 20Vp-p sine wave. Check that there is no distortion or
noise.
7.7 Performance Testing
Performance testing is conducted as part of preventive maintenance to prevent
performance degradation of the
FRA5022
.
FRA5022
performance testing is also conducted as part of acceptance inspection, periodic
inspection, performance verification after repair, and so forth.
If the result of a performance testing does not meet the specifications, calibration or repair
is required. Contact NF Corporation or one of our representatives.
The performance testing should be conducted in the following conditions.
・
Power voltage: 100 to 230V
±
10
％
(250V or less)
・
Ambient temperature: 23
±
5
℃
・
Ambient humidity: 20 to 70%RH, non-condensing
・
Warm up: 30 min or more
Take the following precautions when you conduct a performance testing.
・
When the use of a coaxial cable is required, use a cable with the following
characteristics: characteristic impedance 50Ω, thickness RG -58A/U or more, length
1m or less. BNC connectors at both ends.
・
When 50Ω termination is specified, set the connected measuring instrument input to
50Ω. For a measuring instrument that cannot be set to 50Ω, install a feed through
terminator of 50Ω to the measuring instrument input
to terminate it.
・
The setting options for each test item are the items that can be changed after the
device is initialized and powered on. First, perform
“ INITIALIZE all ” (total
initialization) via the system menu screen.

“3.5.4 System Menu Screen”