Bacharach FYRITE CO2, Operating & Maintenance Manual

Page: 30 / 40

Instruction 0011-9026 Page 26
with fi nger and squeeze Aspirator Bulb (Figure 27). Bulb should remain fi rm. If Bulb
collapses, check Bulb and Hose to Connector Tip for cracks or other source of leakage.
Replace defective parts. If there are no apparent leaks in the Sampling Assembly,
replace Inlet Check Valve. Small hole end of Inlet Check Valve fi ts in Hose and
large hole end fi ts in the Aspirator Bulb (Figure 26) .
Now seal end of metal Sampling Tube with fi nger, and collapse Aspirator Bulb. (Fig-
ure 28). If the Bulb returns to original shape in less than 15 seconds, inspect Hose,
Filter, Saturator Tube and Metal Sampling Tube for leaks. If none are found, replace
the Outlet Check Valve. Small hole end of Outlet Check Valve fi ts in Aspirator
Bulb and large hole end fi ts in the Hose (Figure 26) .
Discard Filter Packing when it becomes dirty or clogged. Push old packing out of, and
new packing into, Filter Saturator Tube with a pencil or small rod (See Section 6.9).
6.8 Storing FYRITE and Refi ll Fluid
When FYRITE is not used over periods between tests, store it and its Sampling As-
sembly in a cool, dry place. Prolonged storage, for example, at high temperatures
reached in an automobile trunk over the Summer is not recommended. When stored
unused over the Summer, it is good practice to drain old fl uid and replace with fresh
charge ( fl uid) when needed in the Fall.
FYRITE Re fi ll Fluid should also be stored in a cool, dry location in the carton pro-
vided. A recommended practice is to accumulate stock only suf fi cient for one year
requirement and to use oldest stock fi rst. Fluid can be tested for performance accord-
ing to Section 6.2.
Use only Bacharach CO
2
or O
2
Fluid Re fi lls for the range FYRITE selected. The Kits
below contain three Re fi ll Bottles each.
7% CO
2
range ..............................Re fi ll Kit 10-5100
20% and 60% CO
2
range .............Re fi ll Kit 10-5057
7% O
2
range .................................Re fi ll Kit 10-5103
21% and 60% O
2
range ................Re fi ll Kit 10-5060
6.9 Replacing Saturator Filter Packing Part #11-0121
(Refer to Figs 29 thru 32)
Remove the fi lter tube nipple and bushing (See Figure 29) from each end of the tube.
Use a pencil or similar object to remove packing when it becomes dirty or clogged.
Wrap replacement packing around the hand (See Figure 30). If testing unsaturated
gases (most non-combustion applications), saturate packing in water as shown in
Figure 3, and squeeze out excess moisture.
Insert saturated packing using a pencil or small rod into fi lter tube (See Figure 32);
then reassemble nipple and bushing.
7.0 ILLUSTRATED PARTS LIST FYRITE CO
2
/O
2
(Refer to Figure 33 FYRITE Parts Breakout)