Assembling the Reference Source
• Locate the Reference Filter Assembly. It consists of a Parker/Balston particle filter with a black 1/4" to
1/8” reducing union and a short length of 1/8” blue tubing.
• Fully insert the free end of the 1/8" blue tube into the Input “Reference” port of the UGC.
Assembling the Sample Line Filter
• Locate the Sample Line Filter. It consists of two blue ammonia traps and one Parker/Balston particle
filter all serially connected using 1/4"union connectors with 1/8” air line ports on each end.