TSI Instruments 3772 - Apply Power to the CPC; Connecting the Butanol Drain Bottle; Filling the Fill Bottle with Butanol

2-4 Model 3772/3771 Condensation Particle Counter
Filling the Fill Bottle with Butanol
The Model 3772/3771 CPC uses reagent-grade n-butyl alcohol (butanol)
as the working fluid for particle growth. Pour the butanol into the Fill Bottle
to at least one-third full. Because of the leak-tight fittings and internal
solenoid valve, liquid will not flow into the CPC until the connections are
made, the instrument is switched on, and warm-up cycle is complete.
Note: Due to shipping regulations on flammable materials, n-butyl alcohol
(butanol) is not supplied with the CPC. Butanol may be purchased
from scientific chemical supply houses. Reagent grade of butanol is
required.
Connecting the Butanol Drain Bottle
A drain bottle should be connected to the Liquid Drain port at the back
panel of the CPC. The drain bottle collects butanol drained from the CPC
prior to transport and holds condensed water and butanol removed from
the condenser when the water removal system is turned on (see note
below). Draining butanol is described in Chapter 8 “Maintenance and
Service”.
Note: The water removal system will not work without a drain bottle
connected to the drain port. Refer to Chapter 4 for more details on
water removal system.
C a u t i o n
Butanol is flammable. Butanol is also potentially toxic if inhaled. Use
butanol only in a well-ventilated area. If you smell butanol and
develop a headache, or feel faint or nauseous, leave the area at
once. Ventilate the area before returning.
Apply Power to the CPC
Plug the power cord into the receptacle on the back panel of the CPC and
then plug it into the AC power source. The instrument uses a universal
power supply that accepts a variety of input voltages identified below.
Power 100 – 240 VAC, 50/60 Hz, 200 W maximum
Note: Make certain the power cord is plugged into a grounded power
outlet. Position the CPC so the power connector and switch are
easily accessible in case an emergency disconnect is required.
Apply power to the CPC by turning on the switch next to the power cord on
the back panel.
The instrument begins a warm-up sequence which typically lasts ten
minutes at room temperature. On the 3772, a ten-minute countdown is
displayed on the front panel. Particle concentration will not be accurately
measured during warm-up. After warm-up completes, the fluid begins to fill
the internal butanol reservoir in the saturator.