Tabor 8020, Руководство пользователя

Страница: 65 / 111

5-10. PERFORMANCE CHECKS PROCEDURE
5-10-1. Frequency - Gated Mode
Accuracy specifications: +/-3 % of full scale up to 1.999
MHz; +/-5 % of full scale up to 20.00 MHz
Equipment: Counter
1 . Set 8020 as follows:
CONTROL POSITION
Amplitude 1.50 V
Offset 0.00 V
Trigger Mode Continuous
Display Modify FREQ
Operating Mode VCO
Output Squarewave
2 . Set counter to frequency measurment.
3 . Set 8020 frequency and verify counter frequency reading
as follows:
8020 SETTING COUNTER READING
1.999 Hz 1.940 Hz - 2.060 Hz
19.99 Hz 19.40 Hz - 20.60 Hz
199.9 Hz 194.0 Hz - 206.0 Hz
1.999 KHz 1.940 KHz - 2.060 KHz
19.99 KHz 19.40 KHz - 20.60 KHz
199.9 KHz 194.0 KHz - 206.0 KHz
1.999 MHz 1.940 KHz - 2.060 MHz
20.00 MHz
19.00 MHz - 21.00 MHz
5-10-2. Frequency - Continuous Mode
Accuracy specifications: +/-3 % of full scale up to 9.999 Hz;
+/-0.1 % of full scale up to 20.00 MHz (full scale reading
is 2000 counts)
Equipment: Counter
1 . Set 8020 as follows:
CONTROL POSITION
Amplitude 1.50 V
Offset 0.00 V
Trigger Mode Continuous
Display Modify FREQ
Operating Mode Normal
Output Squarewave
2 . Set counter to frequency measurment.
3 . Set 8020 frequency and verify counter frequency reading
as follows:
8020 SETTING COUNTER READING
19.99 Hz 19.98 Hz - 20.02 Hz
199.9 Hz 199.8 Hz - 200.2 Hz
1.999 KHz 1.998 KHz - 2.002 KHz
19.99 KHz 19.98 KHz - 20.02 KHz
199.9 KHz 199.8 KHz - 200.2 KHz
1.999 MHz 1.998 KHz - 2.002 MHz
20.00 MHz 19.98 MHz - 20.02 MHz
Instrument Recommended Specifications Use (*)
Model
Counter Tabor 6020 200MHz Universal P,A,T
DMM Tabor 4121 .1V- 100V,AC rms,DC P,A,T
Function Generator Tabor 8200 1mHz - 20MHz P
Synthesizer Marconi 2019 80KHz-1040MHz P,A
Oscilloscope Tek 465 100MHz band width P,A,T
Distortion analyser K-H 6900 100Hz - 1MHz P,A
Spectrum analyser HP 182T/8557A 10KHz - 350MHz P
50 ohm feedthrough
Termination
Tek 011-0049-01 50 ohm, 2W, 1% P,A
(*) P= Performance Test, A= Adjustments, T= Troubleshooting
Table 5-2. Required Test Equipment.
Maintenance And Performance Tests Model 8020
Page 5-4