OPERATION

Once you have conducted the brief startup procedure outlined here, you need only sit back and enjoy safe, effective probe conditioning. No special programs to write, no scheduled operator routines.

 

With the system wired as illustrated in Fig. 1, the furnace at normal operating temperature, and the valve on the burnoff air flow meter closed, a burnoff at the AC20 is initiated. Set the burnoff flow to about 5cfh.  Observe the probe temperature and O2 millivolt reading, and adjust the burnoff airflow until the millivolt reading is below 200 millivolts, preferably at 0.  The temperature will pass through a maximum as the flow is increased, then drop to a value close to the normal probe temperature. Burnoff will now occur each time the inner door is opened, and then closed. A manual burnoff can be conducted at any time from the AC20.

 

Refer to your   GOLD PROBE^TM instruction manual for a complete description of probe conditioning theory.  System operation is described on Fig. 1.