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48

Varian ELSD Service Manual

To replace the cooled evaporator
assembly carefully connect the ends of
evaporator tube into the optical block
and nebuliser chamber, as shown.

Reconnect the electrical and gas
connections

DO NOT TIGHTEN ANY SCREWS AT
THIS POINT AS THIS CAN DAMAGE
THE ASSEMBLY

Having positioned the evaporator
assembly, tighten the nebuliser
chamber screws. (shown in red)

This will lock the ends of the assembly
into position and guarantee the
alignment is correct.

Position the mounting bracket
underneath the evaporator assembly.

Whilst pushing the bracket and
evaporator assembly backwards,
towards the side wall of the ELSD,
tighten the evaporator assembly
screws, (shown in yellow).

This will lock the position of the
assembly to the bracket and prevent
rotation of the assembly.

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Содержание 380-LC

Страница 1: ...mherst MA 01002 USA Tel 1 413 253 9554 Fax 1 413 253 2476 Polymer Laboratories Varian B V Herculesweg 8 4339 PL Middelburg The Netherlands Tel 31 0 118 671500 Fax 31 0 118 671502 Polymer Laboratories Varian Belgium NV SA Mechelsesteenweg 362 2860 St Katelijne Waver Belgium Tel 32 0 15 556460 Fax 32 0 15 556186 Polymer Laboratories Varian Deutschland GmbH Alsfelder Straße 6 D 64289 Darmstadt German...

Страница 2: ...Document Revision History 6 27401 Revision Date Section Changed Changes Approval Draft 24th Jan 2008 All Originated SMB DO NOT ISSUE THIS PAGE ...

Страница 3: ...onnector 5 Serial RS232 Connector 5 Connection to a Varian Star 800 Module Interface Box 6 Control I O connector 6 Installing the Detector 7 Storing the Instrument 8 OPTIMISING DETECTOR PERFORMANCE 9 General Considerations 9 Optimisation Parameters 9 Gas Flow 9 Evaporator Temperature 9 Nebuliser Temperature 9 Optimisation Procedure 9 OVERVIEW OF DETECTOR S OPERATION MODES 11 Standby Mode 11 Run Mo...

Страница 4: ...ng The Gas Inlet Assembly 39 Replacing The Nebuliser Gas Regulator 41 Overview of Varian 385 LC Evaporator Assembly 43 Removing And Cleaning The Varian 385 LC Evaporator Cartridge Diffuser 44 Replacing The Varian 385 LC Cooled Evaporator Assembly 46 Overview of Optical Assembly 50 Removing The Photodetector PMT Assembly 51 Adjusting Photodetector PMT Sensitivity 53 Replacing The LED Light Source A...

Страница 5: ...ly otherwise we do not guarantee any specification or liability It is strongly recommended that the operator read the entire manual carefully before attempting to service the instrument In addition be sure to observe all signs and pictographs that are specifically defined as follows WARNING The warning sign denotes a hazard It calls attention to a procedure practice which if not correctly done or ...

Страница 6: ...electronic discharge ESD In order to prevent damage always use ESD protection when handling electronic boards and components WARNING The LED light source is a Class 1 LED product Temporary discomfort may result from directly viewing the light produced by this source Do not look into the beam Make sure that only fuses with the required rated current and of the specified type super fast fast time de...

Страница 7: ...se with gases other than Air or Nitrogen For operation with other inert gases contact Polymer Laboratories for advice Gas flow up to 3 25 SLM 60 psi 25 C Pressure operating range 60 100 psi 4 6 7 bar Maximum Pressure 100 psi 6 7 bar Extraction Requirements During normal operation the carrier solvent is evaporated as it passes through the instrument and must be extracted safely at the rear of the u...

Страница 8: ...logue output Cable Gas Tubing 2m PVC Exhaust hose 2m Tygon SE200 waste hose 7cm 500ml Solvent waste container Power Connections Before connecting the power cable ensure the instrument voltage rating matches your local power supply Use only a supply with protective grounding The correct fuses should be installed For 115V AC or 230V AC use two 250V H 2A T fuses THIS UNIT IS DOUBLE FUSED RISK OF FIRE...

Страница 9: ...he waste bottle at the front of the unit and to prevent it accumulating in the tubing THE EXHAUST MUST BE EXTRACTED TO A SUITABLE FUME EXTRACTION SYSTEM Data Connection Analogue Signal Connector The Varian ELS detector is supplied with a 1V analogue output cable PL0890 0300 that allows data collection via an A D interface such as a Star MIB 800 module The gold end fitting of the analogue cable plu...

Страница 10: ... and shutdown the detector The ELS detector is equipped with 2 contact closures normally open for stopping the operation of a pump if the unit reports an error condition The Varian ELS detector is also equipped with one contact closure which is normally open and two TTL logic inputs both active low with internal pull up resistors to 5 V Pump stop facility must be employed if the instrument is to b...

Страница 11: ... 010 ID and a 1 16 Valco fitting Turn on the source gas to a pressure of about 60 100 psi The gas will not flow though the detector until the instrument in set to RUN mode Switch on the ELSD and select method XXX Start heating by selecting RUN mode using the arrow keys on the front keypad When the unit has equilibrated the baseline should be checked to ensure that it is acceptable for the experime...

Страница 12: ...to ambient temperature in STANDBY mode with the gas supply still connected Tip the instrument forwards and empty the P trap contents through the front waste tube i e into the bottle Pour 10 to 20mls of acetone into the exhaust tube to flush out the P trap collecting the waste in the waste bottle at the front of the instrument Again tip the instrument forwards to drain the p trap Disconnect the was...

Страница 13: ...ion of the eluent In general gas flow rates of 1 0 2 0SLM tend to be a reasonable compromise between baseline stability and high reproducible response for eluent flow rates 0 5ml min Reducing the eluent flow allows a reduction in the gas flow rate to maintain the optimum particle stream concentration resulting in greater sensitivity When operating the Varian 385 LC at sub ambient temperatures in a...

Страница 14: ...eratures by 10 C whilst reducing the gas flow rate until optimum sensitivity is achieved In some cases especially for volatile samples it has been found that maximizing the nebuliser temperature permits a lower evaporator temperature and thus an increase in sensitivity ...

Страница 15: ...om RUN mode to STANDBY mode following a command or error then the gas flow is set to a minimum flow of 1 2SLM for 15minutes before the gas manifold valve is closed This minimum blanket gas is enough to nebuliser and evacuate solvent should the instrument default to STANDBY mode with solvent still flowing firmware 1 1 8 or later If the Instrument is left in STANDBY mode for longer than 15mintes gas...

Страница 16: ...t Vapour Detected Stop Pump 15 Liquid Leak Sensor Has Detected Liquid In Drip Tray Liquid In The Base Of The Unit Stop Pump And Investigate 16 Fan Driver IC Thermal Shutdown Fault With The Circuitry Wires Fan 17 Fan Stopped Fault With The Circuitry Wires Fan see page 30 18 Nebuliser Temperature Exceeded Threshold After Stabilizing Faulty Thermocouple Or Heater Control 19 Evaporator Temperature Exc...

Страница 17: ...lvent Stop the eluent flow and increase the evaporator temperature to 50 C above the current set temperature Increase the flow rate to 2 8SLM and wait 15mins Large Baseline offset 1 Inefficient evaporation 2 High concentration of non volatile buffer or stabiliser 3 Contaminated diffuser Increase the evaporator temperature and or gas flow Use a lower concentration of stabiliser unstabilised solvent...

Страница 18: ...components of the Varian ELSD the left side panel folds outwards The lock is located at the rear of the instrument which can be opened using the access key part 0890 0440 See page 56 See page xx See page xx See page 52 See page 38 See page 65 See page 67 See page 18 See page 31 See page 33 Varian 380 LC See page 44 Varian 385 LC ...

Страница 19: ...onnected from the mains power before proceeding To prevent personal injury the power cable must be removed from the instrument before opening the detector Do not connect the power cable to the detector while the covers are removed Use the Access key to open the lock located at the rear of the instrument Fold down the left side panel of the detector Disconnect the nebuliser tubing and cables from t...

Страница 20: ...rvice Manual Remove screws located at the top and bottom of the inside side panel to allow removal of the front panel Remove the front panel by lifting and pulling backwards to release the four locating screws from the bulkhead ...

Страница 21: ...liser Assembly The nebuliser assembly is based around a nebuliser chamber white PTFE block into which the nebuliser drain tubes gas tubes and evaporation tube are connected Access to the nebuliser section requires the removal of the front panel see page 15 ...

Страница 22: ...d ELSD Nebuliser 0890 0390 Ensure that the detector has cooled down before proceeding Ensure that all gas and solvent connections are disconnected prior to proceeding Open the detector and remove the front panel as described in Removing the front panel pg 15 Disconnect the nebuliser tubing from the inlet bulkhead Disconnect the gas inlet as highlighted ...

Страница 23: ... screw as highlighted VERY carefully remove the nebuliser from the mount as shown Check the nebuliser for damage or blockages To install the nebuliser see installing the nebuliser section pg20 DO NOT PLACE THE NEBULISER IN AN ULTRASONIC BATH BLOCKAGES MUST BE REMOVED USING A SPECIAL CLEANING TOOL ...

Страница 24: ...liser 0890 0390 Ensure that the detector has cooled down before proceeding Ensure that all gas and solvent connections are disconnected prior to proceeding Check that the nebuliser is not damaged before removing from packaging Fit the gas connector and finger tight connector to the nebuliser as shown Connect the nebuliser to the inlet tubing via the union connection ...

Страница 25: ... to run mode The correct gas flow to the nebuliser should be 0 40SLM If the gas flow is incorrect adjust the gas regulator by pulling down the black knob and twisting until the correct flow is achieved Disconnect the in line flow meter and reconnect the regulator to the nebuliser The IQ OQ procedure must now be preformed to ensure the detector is performing as specified see PMT section pg 51 A qua...

Страница 26: ...nsure that the detector has cooled down before proceeding Ensure that all gas and solvent connections are disconnected prior to proceeding Open the detector and remove the front panel as described in Removing the front panel pg 15 Remove the nebuliser as described in Removing the nebuliser pg 18 Disconnect the gas tubing from the nebuliser mount and Remove the three mounting screws with an Allen k...

Страница 27: ...sconnect the two Nebuliser Heater Assembly cables from the main control board NEB HTR NEB and remove the nebuliser heater assembly Ensure that the earthing cable is connected to the nebuliser heater assembly before switching on the instrument ...

Страница 28: ...re that the detector has cooled down before proceeding Ensure that all gas and solvent connections are disconnected prior to proceeding Open the detector and remove the front panel as described in Removing the front panel pg 15 Remove the nebuliser heater assembly as described in Replacing the nebuliser heater assembly pg 22 The nebuliser and heater assembly can be removed as one section as shown ...

Страница 29: ...e to support the nebuliser chamber Whilst holding the nebuliser chamber carefully remove the drain tube from the nebuliser chamber Carefully pull the evaporator tube and drain tube out of the nebuliser chamber as shown Replace with the new chamber and re connect the gas tubing Ensure that the earthing cable is connected to the nebuliser heater assembly before switching on the instrument ...

Страница 30: ...n the detector s side panel using the access key as shown Ensure there is no liquid in the leak sensor well located underneath the nebuliser chamber Dry with tissue if necessary Remove the two screws on the leak sensor assembly Disconnect the cable that connects the leak sensor assembly to the main control board Replace the leak sensor assembly and reconnect the cable If necessary replace the leak...

Страница 31: ...Parts required Vapour Sensor PL0890 0510 The Varian ELSD is fitted with a differential vapour sensor system The external sensor is located at the rear of the instrument the internal sensor is located on the main control board Open the detector s side panel using the access key as shown Locate the external vapour sensor on the rear of the instrument ...

Страница 32: ... from the back of the instrument The internal vapour sensor is located on the main PCB as shown Carefully remove the sensor by unplugging the sensor from the main board as shown Once the vapour sensor has been removed check that the locating pins are not damaged by removing the cover as shown ...

Страница 33: ... Varian ELSD Service Manual Ensure that the copper pins in each hole are close together to ensure a good contact will be made with the replacement sensor s pins If necessary move the pins with a small screwdriver ...

Страница 34: ...Fan Assembly PL0890 0415 Open the detector s side panel using the access key as shown Disconnect the fan cable as shown FAN Remove the two screws of the fan assembly For the 380 LC Insert the replacement fan with airflow from the back to the front of the unit i e the silver label is not visible Connect the fan cable to the main control board ...

Страница 35: ...the replacement fan with airflow from the front to the back of the unit i e the silver label is visible as shown Connect the fan cable to the main control board The fan assembly on the Varian 385 LC must be installed in the opposite direction to the 380 LC as shown to prevent the power supply overheating ...

Страница 36: ...ises a heated tube and drain tube connecting the nebuliser chamber to the optical assembly as shown This section of the instrument also contains the Mass flow controller and gas valve Access to this part of the instrument can be gained by opening the side panel but the front panel may need removing for certain service operations ...

Страница 37: ... reduction in sensitivity Noisy Baseline Tools required Allen Keys Parts required Evaporator Cartridge PL0890 0475 Ensure that the detector has cooled down before proceeding Open the detector s side panel using the access key as shown Remove the nebuliser chamber as described in Replacing the nebuliser chamber pg 24 ...

Страница 38: ...aporator cartridge from the end of the evaporation tube as shown Place the evaporation cartridge in a beaker of dilute acid and sonicate for ca 30 mins Rinse the evaporator cartridge with water then acetone Replace the cartridge into the evaporator tube ...

Страница 39: ...uired Allen keys Spanner Parts required Evaporator Heater Assembly No Cartridge PL0890 0480 Open the detector s side panel using the access key as shown Remove the evaporator tube from the nebuliser chamber as described in Replacing the nebuliser chamber pg 24 Do not discard evaporator cartridge Carefully remove the opposite end of the evaporator tube from the optical block assembly ...

Страница 40: ...sembly Insert the New Evaporator Heater Assembly into the optical block Insert the Cartridge into the Evaporator heater assembly and insert assembly into the nebuliser chamber Connect cables EVAP HTR EVAP to main control board Ensure the evaporator cartridge is inserted into the evaporator assembly prior to reassembly otherwise the instrument will not perform correctly ...

Страница 41: ...Open the detector s side panel using the access key Unplug the two black gas lines from either end of the Mass flow controller Disconnect the Mass flow controller cable from the top the MFC Remove the four screws located underneath the base of the instrument to remove the mass flow controller assembly Insert the replacement mass flow controller and reconnect the gas lines and control cable ...

Страница 42: ...Assembly When required Every 12 months or when filter becomes blocked Tools required Spanner Parts required Gas Inlet assembly PL0890 0425 The gas inlet plug assembly is located at the rear of instrument as shown Using a spanner unscrew the assembly and remove as shown ...

Страница 43: ...equired Gas Inlet Assembly PL0890 0425 Gas inlet Frit 10µm PL0890 0525 Open the detector s side panel using the access key as shown Locate the gas valve as shown and disconnect the red crimp connectors and all gas tubing Locate the gas inlet plug assembly as shown and peel off the sticker to reveal two screws which hold the valve in place ...

Страница 44: ... 6 27401 40 Varian ELSD Service Manual Remove the two screws to take out and replace the gas valve ...

Страница 45: ...ired Faulty gas regulator Tools required Allen keys Parts required AR20 Regulator Assembly PL0890 0430 Open the detector s side panel using the access key as shown Disconnect the gas supply to the instrument Locate the nebuliser gas regulator situated behind the optical assembly as shown ...

Страница 46: ...w to remove the light trap In order to remove the regulator undo these two screws Detach all gas lines into the regulator and extract the regulator Insert the new regulator re fasten the screws reconnect the gas tubing and re attach the light trap Follow the procedure outlined in Installing the nebuliser pg 20 in order to configure the correct gas flow to the nebuliser ...

Страница 47: ...evaporator tube section Peltier unit that provides active cooling and heating to the evaporator tube A drain tube connecting the nebuliser chamber to the optical assembly diverts condensed vapour out through the front of the instrument This central section of the instrument also contains the mass flow controller and gas valve which are identical to the 380 LC model ...

Страница 48: ...Loss or reduction in sensitivity Noisy Baseline Tools required Allen Keys Parts required Evaporator Cartridge PL0890 0475 Ensure that the detector has cooled down before proceeding Open the detector s side panel using the access key as shown Remove the nebuliser chamber as described in Replacing the nebuliser chamber pg 24 ...

Страница 49: ...aporator cartridge from the end of the evaporation tube as shown Place the evaporation cartridge in a beaker of dilute acid and sonicate for ca 30 mins Rinse the evaporator cartridge with water then acetone Replace the cartridge into the evaporator tube ...

Страница 50: ...contaminated Tools required Allen keys Spanner Parts required Varian 385 LC Peltier Assembly PL0890 0630 If this procedure is not followed correctly the cooled evaporator assembly may be damaged Open the detector s side panel using the access key as shown Remove the evaporator tube from the nebuliser chamber as described in Replacing the nebuliser chamber pg 24 Do not discard evaporator cartridge ...

Страница 51: ...evaporator assembly from the mounting bracket by unscrewing the two nuts shown in red Support the evaporator assembly and remove the mounting bracket by the three screws as shown The evaporator assembly can now be removed from the optical block as shown Be careful not to exert excess force on the optical block or evaporator assembly ...

Страница 52: ...Y Having positioned the evaporator assembly tighten the nebuliser chamber screws shown in red This will lock the ends of the assembly into position and guarantee the alignment is correct Position the mounting bracket underneath the evaporator assembly Whilst pushing the bracket and evaporator assembly backwards towards the side wall of the ELSD tighten the evaporator assembly screws shown in yello...

Страница 53: ... 6 27401 49 Varian ELSD Service Manual Finally tighten the bracket to the sidewall of the ELSD using the screws highlighted in green ...

Страница 54: ...view of Optical Assembly The optical assembly of the Varian ELSD has been designed for easy maintenance however there may be occasions where the optical surfaces need cleaning The diagram below shows the major components of the optical assembly ...

Страница 55: ...cal lens tissue Parts required Photo Detector Assembly PL0890 0405 Electronic boards and components are sensitive to electronic discharge ESD In order to prevent damage always use ESD protection when handling electronic boards and components Open the detector s side panel using the access key as shown Locate the PMT module on the optical assembly as shown ...

Страница 56: ...ve the black rubber plug as shown Carefully remove the PMT assembly from the optical block Attach the replacement PMT assembly making sure all three cables are re connected Tighten the Grub screw and re insert the black rubber plug The rubber plug must be inserted into the PMT assembly otherwise the detector will not perform correctly ...

Страница 57: ...D In order to prevent damage always use ESD protection when handling electronic boards and components Switch on the ELSD and record the offset value displayed on the front screen Locate the PMT module on the optical assembly as shown Remove the cover of the PMT module to expose the internal PCB The PMT gain is adjusted by turning the screws on the two blue components The right component is the coa...

Страница 58: ...IQ OQ procedure and record the response obtained for glucose If the ELSD does not achieve the specified glucose response then calculate the necessary offset value using the equation shown The OFFSET value should not exceed 140mV resp Glucose Target x mV Response Glucose Offset Original ...

Страница 59: ...ELSD Light Source PL0890 0410 Eye damage may result from directly viewing the light produced by the LED used in this instrument Always turn off the power supply before removing the light source Open the detector s side panel using the access key as shown Disconnect the gold and blue connectors from the light source assembly Loosen the grub screw on the light source assembly ...

Страница 60: ...rvice Manual Carefully remove the light source assembly Attach the replacement light source assembly Make sure the assembly is pushed up against the focusing collar Re connect the gold and blue connectors Tighten the grub screw ...

Страница 61: ...nel as described in Removing the front panel pg 15 Loosen the grub screw shown to release the Light Source Lens Tube on the optical assembly Pull the Light Source Lens Tube out of the optical block The Light Source Lens O ring and spacer are held in place by a Wave Ring spring Use a small screwdriver to release the spring see later Remove the lens for cleaning using lint free optical lens tissue R...

Страница 62: ...todetector PMT Assembly pg 51 The lenses are held in place by a Wave Ring spring see below Release the spring using a small screwdriver The Wave Ring spring can then be removed as shown Remove and clean the lenses using lint free optical lens tissue Reassemble referring to the optical assembly diagram to get the correct lens orientation ...

Страница 63: ...ght Trap When required High Baseline Offset Noisy baseline Tools required Allen keys Screwdriver Parts required Light Trap Assembly PL0890 0580 Open the detector s side panel using the access key as shown The light trap is located behind the PMT module as indicated ...

Страница 64: ... 6 27401 60 Varian ELSD Service Manual Using an Allen key loosen the grub screw as indicated and carefully pull out the optical light trap as shown ...

Страница 65: ...e to electronic discharge ESD In order to prevent damage always use ESD protection when handling electronic boards and components Open the detector s side panel using the access key as shown Using an Allen key remove the optics heater plate from the optical block assembly as shown Disconnect the optics heater cable as highlighted from the main PCB board Replacement of the optics heater fuse as hig...

Страница 66: ...e optical lens tissue Lens cleaner Parts required Prism assembly PL0890 0585 Open the detector s side panel using the access key as shown Remove the two screws located at the bottom as shown and top of the inside panel Remove the side panel to gain access the rear of the optical assembly Using an Allen key undo the screw to remove the prism assembly clip as shown ...

Страница 67: ... 6 27401 63 Varian ELSD Service Manual Very carefully slide out the prism assembly from the optical assembly The prism assembly can be replaced or cleaned using lint free optical tissue and cleaner ...

Страница 68: ...ver Allen keys Parts required Varian 380 Main Control PCB PL0890 0470 Varian 385 Main Control PCB PL0890 0515 Heater PCB Fuses There are 3 fuses fitted to the main control PCB one to protect each of the heater circuits FH 1 FH 3 H 1A FF 250V FH 2 TR5 2A T 250V Electronic boards and components are sensitive to electronic discharge ESD In order to prevent damage always use ESD protection when handli...

Страница 69: ...ndicated and unplug all connections Remove the six screws from the rear of the instrument as highlighted Carefully lift the board from its mountings Replace the new PCB and re connect all the cables Check Firmware on replacement board is correct version for ELSD model ...

Страница 70: ...380 LC Power Supply PL0890 0520 Varian 385 LC Power Supply PL0890 0535 Electronic boards and components are sensitive to electronic discharge ESD In order to prevent damage always use ESD protection when handling electronic boards and components Open the detector s side panel using the access key Locate the power supply on the main PCB Unplug the two connectors highlighted ...

Страница 71: ... Varian ELSD Service Manual Remove the ferrite from the group of wires as shown Disconnect the wires from the power supply as shown Remove the power supply from its mounting by unscrewing the four screws as shown ...

Страница 72: ...the correct wires are connected to correct positions on the green terminal block The pair of black yellow wires connect as follows Black position 3 Yellow position 6 as shown The pair of red black wires connect as follows Red position 1 Black position 2 The single black wire screen connects as follows Large Black position 3 ...

Страница 73: ... connected the green block should appear as shown Firmware The Varian 380 LC 385 LC contain control firmware that can be flash upgraded as described in section Upgrading Firmware pg 65 The Varian 380 LC also contains additional firmware on the cooled evaporator assembly to control the Peltier unit This firmware can only be flash upgraded at the factory The current firmware versions February 2008 a...

Страница 74: ...2 22 04 are not compatible with older ELS 2100 models Device Identifier To allow the control of multiple ELS detectors from a single PC Varian ELSDwith firmware versions 1 5 5 have programmable device identification The default value is set at 1 with a maximum of 254 The device identity can be configured as shown in section Programming Device Identity ...

Страница 75: ... and the correct communication port 6 Turn on the instrument and check that the message Bootloader v904211 is shown 7 Browse to select the new firmware e g A 9061_2204 hex 8 Select the download icon to upgrade the EPROM with the new firmware During transfer the auto zero light on the detector front panel will turn red and flash 9 On successful completion of the programming a message will appear an...

Страница 76: ... 6 27401 72 Varian ELSD Service Manual Figure 1 Terminal program Figure 2 Communications dialog ...

Страница 77: ... 6 27401 73 Varian ELSD Service Manual Figure 3 Successful Communications Figure 4 Initializing the Programming ...

Страница 78: ... 6 27401 74 Varian ELSD Service Manual Figure 5 Selecting the HEX file Figure 6 Downloading the Program ...

Страница 79: ... 6 27401 75 Varian ELSD Service Manual Figure 7 Programming the EPROM ...

Страница 80: ... Start the ELSD Device ID TRM program Figure 8 and configure the Communications in the Settings menu figure 9 4 Check the instrument successfully communicates with the terminal program by selecting Get Data figure 10 5 Now obtain the identity of the ELSD by selecting GET ID The following value should be obtained 001B000000000XB6 where X is the device ID figure 11 6 To set the ELSD device ID to 1 s...

Страница 81: ... 6 27401 77 Varian ELSD Service Manual Figure 8 ELSD Device ID Terminal program Figure 9 Communications dialog ...

Страница 82: ... 6 27401 78 Varian ELSD Service Manual Figure 10 Successful Communication with Get Data command ...

Страница 83: ... 6 27401 79 Varian ELSD Service Manual Figure 11 Device ID displayed ...

Страница 84: ...rkbook PL0890 0365 Varian ELSD Control Software PL0890 0370 Varian ELSD Dimension Software PL0890 0375 Varian ELSD Driver for Chemstation PL0890 0380 ELSD Nebuliser PL0890 0390 Leak Sensor Assembly PL0890 0395 Mass Flow Controller PL0890 0400 Photo Detector Assembly PL0890 0405 ELSD Light Source PL0890 0410 Fan Assembly PL0890 0415 Front White LED Assembly PL0890 0420 Gas Inlet Assembly PL0890 042...

Страница 85: ...liser Chamber PL0890 0550 Nebuliser Waste Tube PL0890 0555 P Trap Diffusor PL0890 0560 Viton O ring 19 30x2 40 PL0890 0565 Viton O ring 0 7x1 0 PL0890 0570 Viton O ring 15 30x2 40 PL0890 0575 Light Trap Assembly PL0890 0580 Prism Assembly PL0890 0585 Optics Heater PL0890 0595 O ring 21 95x1 78 PL0890 0615 O ring Nitrile Prism PL0890 0620 Optics Prism PL0890 0625 Peltier Assembly PL0890 0630 Mains ...

Страница 86: ...as Typical inlet Pressure 60 100PSI Maximum Inlet Pressure 100PSI Gas Flow Rate Up to 3 25SLM Eluent Flow Rate 0 2 to 5ml min Analogue Output 0 1V FSD Digital Output 24bit 10Hz 40Hz via serial port Communications Serial I O RS232 Contact Closure TTL Remote Start Input Operation Graphical Vacuum Fluorescent display and keypad Windows based PC control Power Requirements 90 120V AC or 220 250V AC 50 ...

Страница 87: ...e it to a fume cupboard if necessary Empty the P trap before moving the instrument See Storing the Instrument pg 8 Open the cover of the instrument to see if any solvent has contaminated the interior Excess quantities of liquid spilt on or inside the instrument should be mopped up using absorbent cloths followed by repeated wiping down with soft cloths moistened with Acetone or deionised water as ...

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