Monroe Electronics Charge Plate - Analyzer - model 268A - Manual (Page 8)

BASIC OPERATION - PEAK MODE:
Peak mode is useful for checking balance in pulse ionizing systems. The timer is
not associated with these measurements. The internal high voltage charging
source is not normally used.
The switches used in making peak measurements are the three selector
switches under the PLATE VOLTAGE meter and the ZERO and DECAY
switches.
1. Select a meter range using the 5kV/2kV switch.
2. Zero the plate by depressing the ZERO switch.
3. Select desired peak (+ or –).
4. Select PEAK mode by depressing the NORM/PK switch into the PK position.
5. Allow the plate to “float” by depressing the DECAY button. This ungrounds
the plate. The meter will now indicate the highest peak voltage attained by
the plate in the selected polarity. The
–PK/+PK switch may be shifted to the opposite position to read the highest
peak voltage attained in that polarity.
To balance your ionization system or blower, adjust until both positive and
negative peak readings are the same.
6. Anytime the NORM/PK button is released to the NORM position; the peak
detector is automatically reset.
7. The plate will continue to float until the ZERO button is pressed. Thus, the
ZERO switch and the RESET function of the NORM/PK switch are normally
used in conjunction with each other.