Teledyne 275R Instruction Manual Download

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TELEDYNE ANALYTICAL INSTRUMENTS

5.2

5.0 Maintenance &

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Summary of Contents for 275R

Page 1: ...ZER I I I I INSTR NSTR NSTR NSTR NSTRUCTION UCTION UCTION UCTION UCTION M M M M MANU ANU ANU ANU ANUAL AL AL AL AL P NM51353 03 29 01 ECO 01 0115 HIGHLYTOXICANDORFLAMMABLELIQUIDSORGASESMAYBEPRESENTINTHISMONITORINGSYSTEM PERSONALPROTECTIVEEQUIPMENTMAYBEREQUIREDWHENSERVICINGTHISSYSTEM HAZARDOUSVOLTAGESEXISTONCERTAINCOMPONENTSINTERNALLYWHICHMAYPERSISTFORA TIMEEVENAFTERTHEPOWERISTURNEDOFFANDDISCONNECT...

Page 2: ... involved in the use of the instrument or its interface with the process that all personnel involved in the use of the instrument or its interface with the process being measured be properly trained in the process itself as well as all instrumentation being measured be properly trained in the process itself as well as all instrumentation being measured be properly trained in the process itself as ...

Page 3: ...ch 3 1 3 1 2 Zero Control 3 1 3 1 3 Span Control 3 1 3 1 4 Cell Temperature 3 1 3 1 5 Flowmeter 3 1 3 1 6 Analog Meter 3 2 3 1 7 Analog Output 3 2 3 2 Start Up 3 2 3 2 1 Preliminary 3 2 3 2 2 Flowrates 3 2 3 2 3 Calibration 3 2 4 0 INSTALLATION 4 1 Locations 4 1 4 2 Electrical Connections 4 1 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 T...

Page 4: ...nstrument to a pressure source greater than 30 psig 30 psig 30 psig 30 psig 30 psig This is a measurement instrument NOT NOT NOT NOT NOT a safety instrument This instrument is NOT NOT NOT NOT NOT explosion proof or intrinsically safe and MUST NOT MUST NOT MUST NOT MUST NOT MUST NOT be used in hazardous areas ...

Page 5: ...uce the purity of H2 used in cooling which increases viscosity and reduces heat conduction the 275R has a H2 in air range in order to assist in monitoring H2 and impurity concentrations for optimum efficiency during normal operations 1 1 1 1 1 1 1 1 1 1Features Features Features Features Features The Model 275R analyzer has three ranges for purge and normal generator operation with zero and span p...

Page 6: ...TELEDYNE ANALYTICAL INSTRUMENTS 1 2 1 0 Intr 1 0 Intr 1 0 Intr 1 0 Intr 1 0 Introduction oduction oduction oduction oduction ...

Page 7: ... 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 Thermal conductivity measurements are non specific by nature which imposes certain limitations and requirements If the analyzer is to detect a specific component in a sample stream the sample must be composed of the component of interest and...

Page 8: ...reference cell block is regulated to within 0 1 C by means of an electronic proportional controller circuit The cell block is mounted on an aluminum heater block and insulated A thermistor is used in the circuit to keep the heater block at a predetermined temperature A regulated current supply of approximately 100 milliamperes supplies stable temperature independent power to the sensor elements in...

Page 9: ...lyzer See Appendix Appendix Appendix Appendix Appendix Specifications Specifications Specifications Specifications Specifications for the recommended zero gas 3 1 3 3 1 3 3 1 3 3 1 3 3 1 3 Span Control Span Control Span Control Span Control Span Control The span control potentiometers are used to adjust the meter to read the known concentration of a span gas present in the measuring chamber See Ap...

Page 10: ...s than 10 000 Ω to ensure that it will not cause error in the output signal 3 2 3 2 3 2 3 2 3 2 Start Up Start Up Start Up Start Up Start Up 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 Preliminary Preliminary Preliminary Preliminary Preliminary 1 Check that the inlet and outlet lines have been connected to the proper ports in the rear of the analyzer and that all the lines are leak free 2 Plug the power cord in...

Page 11: ... to read zero on the meter for Range 3 3 With 100 H2 flowing through the cell adjust the span controls to read full scale output in Ranges 1 and 3 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...

Page 12: ...TELEDYNE ANALYTICAL INSTRUMENTS 3 4 3 0 Operations 3 0 Operations 3 0 Operations 3 0 Operations 3 0 Operations ...

Page 13: ...res below 30 F or above 110 F The analyzer should be placed as close as possible subject to the above conditions to the sample point to minimize the effects of sample line lag time on the analysis An outline diagram showing the location and identification of the gas and electrical connections as well as the physical dimensions of the ana lyzer case is included in the drawings at the rear of the ma...

Page 14: ...t to store it near flames or flammmable materials not to store it near flames or flammmable materials not to store it near flames or flammmable materials not to store it near flames or flammmable materials The output from the analyzer should be purged to a remote The output from the analyzer should be purged to a remote The output from the analyzer should be purged to a remote The output from the ...

Page 15: ...inders should be adjusted to provide the same output pressure as the sample line regulator NOTE NOTE NOTE NOTE NOTE When installing pressure regulators on supply cylinders open the When installing pressure regulators on supply cylinders open the When installing pressure regulators on supply cylinders open the When installing pressure regulators on supply cylinders open the When installing pressure...

Page 16: ...TELEDYNE ANALYTICAL INSTRUMENTS 4 4 4 0 Installation 4 0 Installation 4 0 Installation 4 0 Installation 4 0 Installation ...

Page 17: ...o Do o Do o Do o Do o Do a Bad fuse b The power supply of 15V and 15V may be defective c The bridge power supply 100 mA may be defective a Blocked vent may be causing back pressure in the measurement cell resulting in high cell pres sure erratic readings and a constricted flow a The temperature controller may not be working 1 No output 2 Output drifting very slowly 3 Output goes high slowly when t...

Page 18: ...EDYNE ANALYTICAL INSTRUMENTS 5 2 5 0 Maintenance 5 0 Maintenance 5 0 Maintenance 5 0 Maintenance 5 0 Maintenance T T T T Tr r r r roub oub oub oub oubleshooting leshooting leshooting leshooting leshooting ...

Page 19: ... Area classification Area classification Area classification Area classification Area classification General purpose non hazardous areas Signal output Signal output Signal output Signal output Signal output 0 to 1 VDC mVDC output also available Meter readout Meter readout Meter readout Meter readout Meter readout Integral analog meter Operating temperature Operating temperature Operating temperatu...

Page 20: ...in CO2 0 100 air in CO2 90 100 H2 in air Output Signal Output Signal Output Signal Output Signal Output Signal 0 1 VDC Recommended Zero Gases Recommended Zero Gases Recommended Zero Gases Recommended Zero Gases Recommended Zero Gases 100 CO2 90 H2 with 10 N2 Recommended Span Gases Recommended Span Gases Recommended Span Gases Recommended Span Gases Recommended Span Gases 100 H2 100 air Reference G...

Page 21: ... PC board power supply B 73363 1 Cell block assembly F9 5 Fuse 1 amp H158 1 Heater 18 watt cartridge type A minimum charge of 150 00 is applicable to spare parts orders IMPORTANT IMPORTANT IMPORTANT IMPORTANT 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 Analy...

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