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HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A P/N M51353 TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED. 03/29/01 ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/MANAGER. ECO # 01-0115 TELEDYNE ANALYTICAL INSTRUMENTS...
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Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91749- 1580.
4.3 Gas Connections ............ 4.2 4.3.1 Gases ............ 4.2 4.3.2 Vent Lines ............ 4.2 4.4 Pressure Regulation ............ 4.3 5.0 MAINTENANCE & TROUBLESHOOTING ......6.0 Appendix Specifications ..............A.1 Calibration Data ..............A.2 Spare Parts List ..............A.3 TELEDYNE ANALYTICAL INSTRUMENTS...
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• This is a measurement instrument, NOT NOT a safety instrument. • This instrument is NOT NOT explosion-proof or intrinsically safe and MUST NOT MUST NOT MUST NOT be used in hazardous areas. MUST NOT MUST NOT TELEDYNE ANALYTICAL INSTRUMENTS...
Features Features Features The Model 275R analyzer has three ranges for purge and normal generator operation, with zero and span potentiometers for each. Each range also has its own scale on the meter face. Efficient insulation around the cell block enables quick restarts so that the instrument can be carried from one generator to the next without a lengthy warm-up period.
(as in chlorine and carbon dioxide gas) indicates that the substance may be a better insulator than conductor. Operation of the 275R analyzer is based on being able to detect the differ- ence in thermal conductivity between the gas being monitored and the known reference (which, in this case, is helium).
This signal is amplified and displayed. The output of the final buffer amplifier is normally 1 volt full scale, and is powered by a standard TAI power supply unit of +15V and -15V. TELEDYNE ANALYTICAL INSTRUMENTS...
3.1.5 3.1.5 Flowmeter Flowmeter 3.1.5 3.1.5 3.1.5 Flowmeter Flowmeter Flowmeter The flowmeter is used to control and adjust the sample (or span or zero) gas flow through the measuring chamber. TELEDYNE ANALYTICAL INSTRUMENTS...
3.2.3 Calibration Calibration 3.2.3 3.2.3 3.2.3 Calibration Calibration Calibration 1. With 100% CO flowing through the cell, adjust the zero control potentiometer so that the meter reads zero for Range 1 and Range 2 of the analyzer. TELEDYNE ANALYTICAL INSTRUMENTS...
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4. With air flowing through the cell, adjust the span control to read full scale output in Range 2. After calibration has been successfully concluded, connect the sample gas to the analyzer, and adjust the flow to approximately 0.1 SCFH 0.1 SCFH 0.1 SCFH 0.1 SCFH. 0.1 SCFH TELEDYNE ANALYTICAL INSTRUMENTS...
Use 2-conductor shielded cable (nominally #22 ga. wire size) to interconnect the analyzer output signal with any recording equipment. The shield should be terminated on the appropriate terminal (see interconnec- tion diagram) at the analyzer, and be left disconnected at the recorder. TELEDYNE ANALYTICAL INSTRUMENTS...
The ambient pressure in the vent area must undergo no more than normal barometric pressure changes. d) The vent line must be installed so that water cannot accumulate in it. TELEDYNE ANALYTICAL INSTRUMENTS...
Using this procedure will eliminate the diffusion of air trapped during assembly back into the cylinder, the most common cause of standardization gas contamination. TELEDYNE ANALYTICAL INSTRUMENTS...
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If the temperature controller is working, perform the same checks as in #2 above. TELEDYNE ANALYTICAL INSTRUMENTS...
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5.0 Maintenance & 5.0 Maintenance & 5.0 Maintenance & T T T T T r r r r r oub leshooting leshooting 5.0 Maintenance & 5.0 Maintenance & oubleshooting leshooting leshooting TELEDYNE ANALYTICAL INSTRUMENTS...
IMPORTANT: Orders for replacement parts should include the part number (if available) and the model and serial number of the system for which the parts are intended. Send orders to: Teledyne Analytical Instruments 16830 Chestnut Street City of Industry, CA 91748-1580 Telephone: (626) 961-9221...
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