OPERATION
Once the Model 111 has been unpacked and assembled, you can use the following
procedure to power up and operate the instrument.
1. Close the manual valve on the output of the compressor and plug in the compressor.
The pressure in the tank should gradually increase to 80 to 90 psi. At that point, the
pump shuts off.
2. Open the manual valve and adjust the pressure regulator downstream of the
coalescing filter for 70 psi.
3. Adjust the pressure regulator on the Model 111 case for the desired pressure
(typically 10 to 30 psi).
4. Turn the dial on the optional CO reactor temperature controller to 350o C. Turn on the
instrument. The internal cooling fan starts blowing and the temperature controller
light is on.
5. After approximately one hour, the indicating light on the temperature controller is
cycling on and off indicating that the reactor is up to temperature. The Model 111 is
now ready for use.
6. The compressor’s motor will cycle on and off, with the tank pressure is controlled
between 80 and 90 psi.