2-4 Model 3786 Ultrafine Water-based Condensation Particle Counter
Figure 2-3
Fill Bottle Connection
4. Connect the power.
a. Attach power cord to the AC power inlet on the back of the
UWCPC and to an AC power source.
b. Turn on the AC power switch located just over the power
connector.
5. Prime the instrument.
a. Make sure the pump is off. The pump can be turned off by
pressing the Pump button.
b. Press the Drain/Prime button on the UWCPC front panel.
c. Press the Drain/Prime button a second time to select the
“Prime Growth Tube” function.
d. Press and hold the Drain/Prime button for at least one
second to activate the water priming function which will
begin a sequence of twenty water injections.
e. Each further press of the Drain/Prime button adds to the
number of injections that will be performed. Press the
Drain/Prime button several more times to increase the
number of injections from the initial 20 up to at least 400.
Keep the pump off during this initial priming.
f. Repeated or excess priming will not harm the instrument
and will only pass excess water to the drain reservoir.
6. Warm-up the instrument.