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Appendix
BY-PASS:
To improve the system response, a by-pass can be added to increase the sample flow
rate to the analyzer by a factor of ten. A by-pass provides a sample flow path around the
analyzer of 2 - 18 SCFH. typically.
CALIBRATION GAS:
3000 series analyzer requirements for units with Auto-Cal options. The 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
3000TB 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:
UNION (SS)
LP. RESTRICTOR
STD.. RESTRICTOR
NUT
FERRULE
FERRULE
CONVERSIONS:
1 PSI
1 SCFH =
A-6
A68729
U11
R2323 ( LOW PRESSURE / VAC. SERVICE )
R2324
N73
F73
F74
=
2.04 INCHES OF MERCURY (in. Hg.)
0.476 SLPM
Teledyne Analytical Instruments
Model 3000TB
BLUE DOT
BOTH FERRULES ARE REQUIRED
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