Teledyne 3020T operating instructions Conversions

Trace Oxygen Analyzer 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

3020T 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

Teledyne Analytical Instruments A-7