NF FRA5014, Instruction Manual

Page: 91 / 107

7.4 Checking the Version Number
FRA5014 7-3
7.4 Checking the Version Number
The
FRA5014
’s firmware version number can be read by entering the query “*IDN?”.
For description of query commands, “
5 REMOTE CONTROL
”
7.5 Checking Isolation
The
FRA5014
’s oscillator output and analyzer input should each be insulated from the case.
Using a resistance meter (tester, multimeter, etc.), measure the resistance between the external
conductors on the rear panel’s BNC connectors and the grounding terminal in the center of the rear
panel, and make sure it is at least 10 MΩ. Similarly, check insulation between the BNC connectors.
7.6
Checking Oscillator’s Output Waveform
Connection: OUTPUT OSCILLATOR
→
oscilloscope input (input impedance = 1 MΩ)
Setting:
After initializing settings, enter the remote commands “FREQ 1 kHz” and “VOLT
7.07” to set the frequency as 1 kHz and the amplitude as 7.07 Vrms, then enter the
remote command “VOLT:OUTP 2” to turn on the oscillator’s output.
Measurement: Use an oscilloscope to observe the waveform.
Judgment: Normal if 20 Vp-p sine wave. Make sure there is no distortion or noise.
7.7 Performance Test
This performance test is part of preventive maintenance aimed at preventing degradation of
performance in the FRA5014 .
The performance test should be implemented during the FRA5014
’s acceptance inspection, during
regular inspections, and during performance checks following repairs.
If the performance test results do not satisfy the rated specifications, calibration or repair is needed.
Contact NF Corporation or our representative.
Set the following before implementing a performance test.
•
Power supply voltage 100 to 230 V

10 %, but 250 V max.
•
Ambient temperature 23

5 °C
•
Ambient humidity 20 to 70 % RH, no condensation
•
Warm-up period 30 minutes or more
Note the following caution points before measuring performance.
•
If use of a coaxial cable is specified, use a cable with characteristic impedance of 50 Ω, thickness
of RG-58A/U or above, and length of one meter or less. The coaxial cable should have BNC
connectors at both ends.
•
When 50 Ω termination is specified, set 50 Ω for the input to the target measuring instrument. If
the measuring instrument cannot be set to 50 Ω, terminate by attaching a 50 Ω coaxial
feed-through terminator to the input of the measuring instrument.
•
The settings for the various test items are items to be changed when output is turned on after the
settings are initialized. Initialize all settings before implementing the test.