CHAPTER 5 INSTRUMENTATION AND CONTROL 5.1 Capacitor Bank Voltage Monitoring Sector capacitor bank and recharge capacitor bank voltages were monitored by two means. One was with digital panel meters (NLS RM-350) having three and one-half digits and a fixed range (1000 volt maximum) for DC voltage measurements during charging and discharging. These can be seen in Fig. 1.4 in the third rack from the left for the accelerator, decelerator, and recharge capacitor banks. The two digital panel meters seen in the first rack are for the ohmic bucket and injector capacitor banks. The drive circuits and recharge circuits containing the sector and recharge capacitor banks are electrically floating and balanced. To monitor the AC waveforms by an oscilloscope required that the voltage be divided to be displayed. This had to be done to eliminate a potential shock hazard and the introduction of unwanted ground loops. A balanced voltage divider circuit was employed and is shown in Fig. 5.1.
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