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Agilent G3180B
Two-Way Splitter Kit
With Makeup Gas
Installation and Operation
Guide
Agilent Technologies
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Notices ©Agilent Technologies, Inc. 2006 Safety Notices Warranty No part of this manual may be reproduced in The material contained in this any form or by any means (including elec- document is provided “as is,” and tronic storage and retrieval or translation CAUTION is subject to being changed, with- into a foreign language) without prior agree- out notice, in future editions. Fur- ment and written consent from Agilent A CAUTION notice denotes a haz- ther, to the maximum extent Technologie
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In this Guide. . . This Installation and Operation Guide contains information for installing and using an effluent splitter on an Agilent 6890 gas chromatograph (GC). The G3180 splitter is intended for use with capillary columns and uses makeup gas to maintain adequate flows throughout the system. 1 Introduction This chapter describes how the splitter works, the GC and software requirements of the system and the contents of the installation kit. 2 Hardware Installation See this chapter for a
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4 Installation and Operation Guide
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Contents 1 Introduction Overview 8 How It Works 9 Details 10 Metal ferrules 10 Microfluidic plate 10 Constant pressure operation 10 Calculation of chromatographic parameters 11 GC Requirements 12 Other Requirements 12 Parts Supplied 13 Part Identification 14 Parts Not Supplied 15 Tools Required 15 2 Hardware Installation Prepare the GC 18 Install the Column Clips 20 Install the Bracket and Splitter 21 Connect the Mak
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3 Splitter Configurations Typical Configurations 26 Splitting to an MSD 28 Custom Configurations 29 Restrictor id and length 32 Maximum and minimum flows 33 Column outlet pressure 34 Inlet pressure 34 Restrictor and Column Installation 35 Install the column 35 Connect the splitter 35 Disconnect tubing from the splitter 37 4Operation An Example 40 Column flow 40 Select restrictors 42 Calculate column flow 43 Calculate ECD
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Agilent G3180B Splitter Kit Installation and Operation Guide 1 Introduction Overview 8 How It Works 9 Details 10 Metal ferrules 10 Microfluidic plate 10 Constant pressure operation 10 Calculation of chromatographic parameters 11 GC Requirements 12 Other Requirements 12 Parts Supplied 13 Part Identification 14 Parts Not Supplied 15 Tools Required 15 This manual covers the installation and operation of the G3180B effluent splitter with makeup gas kit on the
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1 Introduction Overview Splitter installation is done in three steps: 1 Hardware installation. This gets the hardware installed and the gas flows connected. 2 Restrictor configuration. You can choose to use a typical, precalculated configuration or create a custom one using software tools supplied on a CD. 3 Restrictor and column installation. Using the results of step 2, cut the appropriate lengths of the appropriate diameter tubing for the restrictors. Install the restrictors and the analy
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Introduction 1 How It Works The splitter divides the effluent from a column between two different detectors. The detectors can be operating at different pressures, that is, any mix of the following can be used: • Atmospheric pressure FID (flame ionization detector) TCD (thermal conductivity detector) NPD (nitrogen phosphorus detector) ECD (electron capture detector) FPD (flame photometric detector) � Below atmospheric pressure MSD (mass selective detector) � Above atmospheric pressure A
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1 Introduction The column flow mixes with the makeup flow in the splitter. This mixture then flows through lengths of uncoated, deactivated, fused-silica tubing to each detector. These tubes act as flow restrictors. While the flow through each restrictor changes with oven temperature, the ratio of the two flows at any temperature is the same. Details The G3180B kit addresses several limitations of previous approaches to splitting column effluent between two detectors: Metal ferrules The spl
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Introduction 1 Calculation of chromatographic parameters Because the pressure at the split point is known and constant, the chromatographic parameters can be calculated before setup. This is especially useful with GC/MSD setups, where there are limitations on the flow rates of carrier gas allowed into the MSD. If a method that was originally developed on an MSD is converted to a splitter setup, a new inlet pressure can be calculated to produce retention times very similar to the original me
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1 Introduction GC Requirements The splitter mounts in an Agilent 6890 series GC. The splitter requires an electronically controlled pressure source such as the Three Channel Pressure controller (6890 option 205, 301, or 308) or a Pneumatics Control Module (PCM). Other Requirements The calculator requires Microsof®t Excel 97 (or later), which is not supplied with this kit. 12 Installation and Operation Guide
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Introduction 1 Parts Supplied The G3180B kit contains the following parts (Table 1). Table 1 Parts supplied Part number Description Quantity 0100-0124 Union, stainless steel, 1/16-inch tubing 2 0100-0241 Union, stainless steel, 1/8 to 1/16-inch reducing 1 G1580-00130 Valve box blanking plate 1 G1530-01340 Capillary column spring clips 4 0515-0374 Screw, M3 × 10 mm 7 G2855-60140 Oven bracket assembly 1 G2855-60560 T-screw oven bracket retainer 2 G2855-80022 Manual and calculator CD 1 G3180-90120
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1 Introduction Part Identification Most of the kit parts are easily recognized. The unique ones are identified in Figure 2. Capillary column spring clips Valve box blanking plate Oven bracket assembly This assembly is shipped in a Compact splitter plastic bag to keep contaminants with makeup gas out of the tubing and the fittings. assembly Do not open the bag until you are ready to install the splitter. Figure 2 Part identification 14 Installation and Operation Guide
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Introduction 1 Parts Not Supplied Brown-dot frit (19231-60610) Tools Required Side cutter, large Open-end wrenches Installation and Operation Guide 15
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1 Introduction 16 Installation and Operation Guide
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Agilent G3180B Splitter Kit Installation and Operation Guide 2 Hardware Installation Prepare the GC 18 Install the Column Clips 20 Install the Bracket and Splitter 21 Connect the Makeup Gas Supply 24 This chapter describes the procedure for installing the splitter hardware and connecting the makeup gas supply. 17 Agilent Technologies
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2 Hardware Installation Prepare the GC Turn the power off and disconnect the power cord before proceeding. WARNING 1 Raise the GC top cover to expose the oven top. 2 Remove the valve box cutout using a side cutter (Figure 3). Cut tabs around edges and remove Figure 3 Remove the valve box cutout 18 Installation and Operation Guide
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Hardware Installation 2 3 This exposes a layer of soft insulation. Remove it to expose the hard oven insulation. Remove the precut insulation piece at the location shown in Figure 4. Remove this cutout Figure 4 Remove the insulation cutout 4 Replace the soft insulation. Install the valve box blanking plate, using one screw at the front and one at the rear to secure it. See Figure 5. Two screws Figure 5 Install valve box blanking plate Installation and Operation Guide 19
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2 Hardware Installation Install the Column Clips Install the four column clips on the oven shroud (Figure 6). Clip (1 of 4) Oven shroud Figure 6 Oven clips 20 Installation and Operation Guide
