Doppler Weather Radar - METNET - India Meteorological Department

SA9-3
position 3 of A1SA9.
No. Position Parameter
8 A1P5/
SA9-4
Table C.2. Location and Calibration of panel meters
Calibration method
+28 VDC Adjust A1A2R30 to make the reading of A1P5 equal to 28 volts at
position 4 of A1SA9.
9 A1P5/
SA9-5
10 A1P5/
SA9-6
+40 VDC Adjust A1A2R31 to make the reading of A1P5 equal to 40 volts at
position 5 of A1SA9.
+510 VDC Adjust A1A2R23 to make the reading of A1P5 equal to 510 volts at
position 6 of A1SA9.
11 A1P5/
SA9-7
12 A1P5/
SA9-8
13 A1P5/
SA9-9
14 A1P5/
SA9-10
15 A1P5/
SA9-11
16 A1P5/
SA9-12
Filament
Power
Supply
Inverse
Voltage
Filament
Voltage
Focus Coil
Voltage
Ion Pump
Voltage
Beam
Current
Electron-
Beam
voltage
Measure the peak-to-peak voltage between terminals 1 and 2 of the
terminal board A7A1XT1 using an oscilloscope and read the value.
Adjust A1A2R24 to make the reading of A1P5 equal to the value at
position 7 of A1SA9
Adjust A1A2R32 to make the reading of A1P5 equal to the nameplate
filament voltage value of klystron V1 at position 8 of A1SA9.
Measure the voltage value between terminals 1 and 2 of the terminal
board L1XT1 using a multi-meter. Adjust A1A2R25 to make the
reading of A1P5 equal to the value at position 9 of A1SA9
Adjust A1A2R26 to make the reading of A1P5 equal to 3KV at position
10 of A1SA9.
Adjust A1A2R19 to make the reading of the A1P5 equal to 24
milliamperes at position 11 of A1SA9 with the PRF 322Hz and narrow
pulse.
Adjust A1A2R16 and A1A2R16B to make the reading of A1P5 equal to
60KV at position 12 of A1SA9.
17 A1P5/
SA9-13
Inverse Peak Adjust A1A2R18 to make the reading of the A1P5 equal to 11
Current milliamperes at position 13 of A1SA9 with the PRF 322Hz and narrow
pulse.
18 A1P5/
SA9-14
Charge
Current
Adjust A1A2R17 to make the reading of A1P5 equal to 0.65 amperes at
position 14 of A1SA9 with the PRF 322Hz and narrow pulse.
19 A1P5/ Regulating Adjust A1A2R11 to make the reading of A1P5 equal to 5 milliamperes
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