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A-7
Percent Oxygen Analyzer Appendix
Teledyne Analytical Instruments
customer must supply a control valves (or restrictors) for any SPAN or ZERO gas
source which is attached to the Auto-Cal ports. The valve should be adjusted to the
same flow rate as the sample gas . When restrictors are used, the gas pressure must
be adjusted to achieve the proper flow rate.
OPERATION WITHOUT A RESTRICTOR DEVICE:
Operation without a restrictor device is not recommend as mentioned
above. A 3000PA without any flow restrictor device was tested on 11-19-97.
This results in a flow rate of 2.4 SLPM @ 1 PSIG. This is a cv of 0.023 for the
standard sample sys.
REFERENCE: FLOW_1.XLS & FLOW_2.XLS for information on flow rates
at various pressures.
TAI PART NUMBERS
RESTRICTOR KIT: A68729
UNION (SS) U11
LP. RESTRICTOR R2323 ( LOW PRESSURE / VAC. SERVICE )
STD.. RESTRICTOR R2324 BLUE DOT
NUT N73
FERRULE F73
FERRULE F74 BOTH FERRULES ARE
REQUIRED
CONVERSIONS:
1 PSI = 2.04 INCHES OF MERCURY (in. Hg.)
1 SCFH = 0.476 SLPM