7
MEASURING UNICELL IONIZER VOLTAGE
(See Figure 5)
1. Turn the unit off and remove the cabinet. This will
disengage the safety interlock.
2. Connect the ground clip of the positive polarity
probe to the base unit.
CAUTION: Always ground the high voltage probe to
a solid ground connection on the base
unit.
MEASURING UNICELL COLLECTOR VOLTAGE
(See Figure 6)
1. Connect the ground clip of the positive polarity
probe to the base unit.
2. Engage the safety interlock switch and measure the
collector high voltage by placing the probe’s tip on
one of the charged plates. The voltage reading
should be 5.0 to 6.0 KV DC.
3. Turn unit speed control switch on and cautiously
engage the safety interlock switch by depressing
the button.
CAUTION: Be sure to disengage safety interlock
switch after measuring voltages.
4. Place the probe’s tip on the ionizer and measure
the positive DC voltage. The voltage should read
10.0 to 11.0 KV DC.
• If measurements are abnormal, refer to the
troubleshooting guide for cause and correction.
• If measurements are abnormal, refer to the
troubleshooting guide for cause and correction.
CHECKING THE POWER PACK OUTPUT
(See Figure 7)
1. Remove unicell from the cabinet.
2. Engage the safety interlock switch and measure the
output from the ionizer terminal of the power pack
by placing the probe’s tip on the ionizer high voltage
contact.
•
Output reading without the unicell should read 11.0
to 13.0 KV DC positive.
FIGURE 5
FIGURE 6
