Agilent Technologies G6600-90006 manual Reaction Cell Cleaning, Equipment

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Reaction Cell Cleaning

Over time, the reaction cell and UV pass filter (SCD) or IR pass filter (NCD) will develop a build-up of material which should be removed for optimum sensitivity. The cleaning schedule depends upon Detector use and the nature of the analyses; however, it is recommended the cell should be cleaned annually. The cleaning procedure requires removal of the photomultiplier tube (PMT) from the Detector, and special precautions are required to prevent damage to the PMT.

Exposure of a photomultiplier tube to bright light can result in damage to the PMT, even when the high voltage is off. To avoid potential damage, minimize light exposure. The black PMT cover included in the Detector accessories package is recommended for this procedure. Carefully read all the instructions below before attempting to remove the PMT. If you have any questions regarding this procedure please contact Agilent.

To clean the cell and pass filter:

1Disconnect the main power cord (if the vacuum pump is operated from an independent power outlet, unplug the power to the pump as well).

	WA R N I N G	Any operation requiring access to the inside of the equipment, could result in injury. To
	WA R N I N G	avoid potentially dangerous shock, disconnect from power supply before opening the

		equipment.

2Remove the right side panel from the Detector and disconnect the high voltage and coaxial signal cables from the rear of the PMT housing (See Figure 3 and Figure 15).

3Turn off all room lights and minimize outside light sources.

4Unscrew the PMT socket connector assembly. Carefully pull the socket assembly and the PMT out toward the rear of the instrument at a slight angle to remove the PMT/socket assembly from the housing.

5Immediately place the black PMT cap over the PMT, being careful to avoid placing fingerprints on the PMT window. Do not remove the PMT from the socket assembly. After the PMT cap is in place, carefully place the PMT and socket assembly on a soft surface inside a drawer or other dark location to minimize exposure of the PMT to light. The room lights may be turned on at this point.

Operation and Maintenance Manual

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Contents Operation and Maintenance Manual Safety Notices WarrantyAcknowledgements Manual Part NumberWA R N I N G EnglishIs not in use Español Français Deutsch Italiano Veiligheidsvoorzieningen niet meer DutchFollowing symbols are used on the equipment Contents Overview InstallationOperation Front Panel Controls and Initial StartupPump Maintenance MaintenanceIndex TroubleshootingOperation and Maintenance Manual Introduction Operation and Maintenance Manual System Description Technical Information 355 SCD SpecificationsTechnical Information 255 NCD Power requirements Physical SpecificationsVoltage Sulfur Chemiluminescence Detector Theory of OperationNitrogen Chemiluminescence Detector Dual Plasma Burner with the 355 SCD Dual Plasma ControllerDual Plasma Burner Description of Major ComponentsCross-Section of the Dual Plasma Burner for the 355 SCD Cross-Section of the Dual Plasma Burner for the 255 NCD Chemiluminescence Reaction Cell and Photomultiplier Tube Ozone Generator355 SCD Left Side 355 SCD Right Side 255 NCD Left Side View Vacuum Pump Pressure TransducerOil Coalescing Filter Chemical TrapFID Adapter Optional NCD Reaction CellNCD Photomultiplier Tube and Cooler Schematic for 355 SCD Schematic for 255 NCD, in Nitrogen Mode Schematic for 255 NCD, in Nitrosamine Mode Operation and Maintenance Manual Installation Overview Selecting a Location Power RequirementsCombustion Gas Requirements Environmental ConsiderationsTwo-stage pressure regulators Venting Gases Unpack and Inspect the Instrument Required Installation ToolsInstalling the Edwards RV5 Pump Oil-Sealed Vacuum Pump Set Up the Vacuum PumpWA R N I N G Ard RV5 Oil-Sealed Vacuum Pump and Associated Traps Front Side RV5 Oil- Sealed Vacuum Pump and Associated Traps Top Setting the Gas Ballast Position RV5 Installing the Welch Dry Piston Vacuum Pump Operation Notes Welch Pump Welch Dry Piston Pump Operation and Maintenance Manual SCD 230 V Unit Rear Panel Diagram Connect the Power CordInstall the Dry Compressed Air or O2 Supply Install the Signal Output Cables Additional information Install the Dual Plasma BurnerDual Plasma Controller Rear Panel Install the Dual Plasma ControllerCapillary Columns Install Column ConnectionsPacked Columns and Columns with an Outside Diameter 0.8 mm Install the Transfer Line Front Panel Controls and Initial Startup Detector Front Panel Controls Power ControlsDisplay Output Controls Signal ControlsDual Plasma Controller Front Panel Dual Plasma Controller ControlsVacuum Test Initial StartupRecorder Test Initial Checkout Detector Interface SetupIgnition Operation Start-Up Procedure Detector Stability and Response Detector OperationColumn Bleed CokingFluctuating Pressures Contaminated GasesTypical Operating Conditions Typical Operating ConditionsExpected Detection Limits for Chromatographic Conditions Detection LimitsDaily Shutdown Instrument Shut-DownComplete Shutdown Special Operating Modes Using the 255 NCD in Nitrosamine ModeOperation and Maintenance Manual Operation and Maintenance Manual Maintenance Operating Life of Components for Edwards RV5 Vacuum Pump Pump MaintenanceCleaning the Detector Changing the Oil Mist Filter RV5 Equipment Reaction Cell CleaningReaction Cell, PMT Housing and PMT Socket WA R N I N G Flow Sensor Calibration MDL Detector SensitivitySCD Proper Ferrule Orientation to the Large Ceramic Tube Orientation of the Double Taper Ferrule Tightening the Heater Swivel Nut Operation and Maintenance Manual NCD Proper Ferrule Orientation to the Large Quartz Tube Burner Assembly Detail Tube Replacement for the SCD Positioning the Upper Tube in the Union Fitting 100 Operation and Maintenance Manual Operation and Maintenance Manual 101 Tube Replacement for the NCD Operation and Maintenance Manual 103 NCD Tube Replacement Detail Troubleshooting Solving Detector Problems Detector Fuse Power ProblemsVacuum Pump Fuse Dual Plasma Controller FusesFuse Positions on the Power Supply Board High Voltage Transformer Ozone Generation ProblemsPlugged Restrictor Lines Response Problems Temperature Reading Problems Troubleshooting Detector Issues Diagnosing General ProblemsDetector gases Troubleshooting Pump Issues Troubleshooting Burner Issues Index Agilent Technologies, Inc