Varian 380-LC Service Manual
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Varian 380-LC Service Manual

Evaporative light-scattering detector
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Service Manual
FOR
Varian 380-LC & 385-LC
EVAPORATIVE
LIGHT-SCATTERING
DETECTOR
Version 1.0 January 2008
PL0890-0360
Polymer Laboratories Ltd, Now a part of Varian, Inc., Essex Road, Church Stretton,
Shropshire SY6 6AX, UK
Tel +44 (0)1694 723581, Fax +44 (0)1694 722171, Service Tel +44 (0)1694 724333
Polymer Laboratories, Varian, Inc., Amherst Fields Research Park, 160 Old Farm Road,
Amherst, 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, Germany Tel: +49 (0)6151 7030 Fax: +49 (0)6151 703237
Varian S.A.,7 Avenue des Tropiques, Z.A. Courtaboeuf, B.P. 12
F-91941 Les Ulis Cedex, France Tel +33 1.6986.3838 Fax: +33 1.6928.2308

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  • Page 1 DETECTOR Version 1.0 January 2008 PL0890-0360 Polymer Laboratories Ltd, Now a part of Varian, Inc., Essex Road, Church Stretton, Shropshire SY6 6AX, UK Tel +44 (0)1694 723581, Fax +44 (0)1694 722171, Service Tel +44 (0)1694 724333 Polymer Laboratories, Varian, Inc., Amherst Fields Research Park, 160 Old Farm Road, Amherst, MA 01002, USA Tel +1 413 253 9554, Fax +1 413 253 2476 Polymer Laboratories, Varian B.V., Herculesweg 8, 4339 PL Middelburg,...
  • Page 2 Document Revision History (6/27401) Revision # Date Section Changes Approval Changed Draft Jan 2008 Originated DO NOT ISSUE THIS PAGE...

  • Page 3: Table Of Contents

    Extraction ..................................5 Data Connection ................................5 Analogue Signal Connector............................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........................
  • Page 4 Replacing 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 ......................

  • Page 5: Introduction

    INTRODUCTION The combined Varian ELSD Service Manual is designed for use by personnel who have had training and are experienced in servicing this type of equipment. Whilst the ELSD has been designed for easy repair, there are potential hazards associated with servicing this instrument. We strongly recommend that our service engineers...

  • Page 6: Safety

    The Varian ELSDhas a safety bar at the power input socket that prevents the detector’s side panel being opened when the power cable is still connected.

  • Page 7: Installation

    If the extraction tube provided with the instrument is to be extended it is recommended that the diameter of the extension is increased to at least 50mm (2”) diameter tubing so the extraction quality is not inhibited. #6/27401 Varian ELSD Service Manual...

  • Page 8: Unpacking The Detector

    Any damage to the container or instrument should be reported immediately to your local distributor, or to Varian. It is recommended that the shipping container be kept, if possible, for re-shipment or return to a service centre.

  • Page 9: Fluid Connection

    Instead, the exhaust hose provided must be attached to the rear of the unit and vented to a fume hood or other disposal unit. Ensure the exhaust hose has an upward slope from the Varian ELSD so that any condensed solvent is collected in the waste bottle at the front of the unit and to prevent it accumulating in the tubing.

  • Page 10: Connection To A Varian Star 800 Module Interface Box

    Star 800 MIB. For more information about connecting your Varian ELS detector to a Star 800 MIB, refer to your Star 800 MIB documentation.

  • Page 11: Installing The Detector

    Any of these problems will cause the baseline to shift upwards, as the amount of scattered light within the instrument has increased. If the baseline continues to show unacceptable noise even when the evaporation conditions have #6/27401 Varian ELSD Service Manual...

  • Page 12: Storing The Instrument

    Using the gas supply, blow nitrogen gas through the exhaust to evaporate any remaining acetone in the p- trap. Cover the waste tube with tissue paper to collect any acetone residue. • Plug the exhaust and waste tubes with the plastic caps provided. • Plug the solvent inlet. #6/27401 Varian ELSD Service Manual...

  • Page 13: Optimising Detector Performance

    OPTIMISING DETECTOR PERFORMANCE General Considerations The Varian ELSD instrument should be thought of as a detector like any other designed for liquid chromatography. The main distinguishing feature is the ability to evaporate the solvent from the column eluent. Therefore, normal system set-up precautions should be remembered when starting to use the instrument.
  • Page 14 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 #6/27401 Varian ELSD Service Manual...

  • Page 15: Overview Of Detector's Operation Modes

    Standby Mode The STANDBY mode is the “ground state” of the Varian ELSD instrument, which is initiated automatically after power on. In this mode of operation the heaters are off, and the gas manifold valve is closed. The STANDBY mode enables the user to set-up the operational parameters (gas flow, nebuliser and evaporator temperatures) before switching the unit into RUN mode.

  • Page 16: Troubleshooting

    TROUBLESHOOTING If a problem is encountered Polymer Laboratories advises a system test be performed via the Varian ELSDPC control software to ensure that the detector is working correctly. If there is an error or fault, please refer to the following table. If you follow the recommended course of action and the result is not satisfactory, then please direct the matter to Polymer Laboratories or your local distributor.

  • Page 17: General Problems

    Temperature error as soon Temperature probe fault or disconnected Check RTD connections • as instrument powered on Display not on, but power Instrument in service mode Rear panel switch-set to RUN • connected, blue glow ON. #6/27401 Varian ELSD Service Manual...

  • Page 18: Repairing The Varian Elsd

    Overview of Main Assembly To allow easy access to the internal 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)

  • Page 19: Removing The Front Panel

    Removing The Front Panel When required: For majority of internal repairs Tools required: Allen keys Varian ELSD Enclosure Access Key (# 0890-0440) Parts required: Ensure that the detector is disconnected from the mains power before proceeding. To prevent personal injury, the power cable must be removed from the instrument before opening the detector.
  • Page 20 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. #6/27401 Varian ELSD Service Manual...

  • Page 21: Overview Of Nebuliser 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) #6/27401 Varian ELSD Service Manual...

  • Page 22: Removing The Nebuliser

    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 #6/27401 Varian ELSD Service Manual...
  • Page 23 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 #6/27401 Varian ELSD Service Manual...

  • Page 24: Installing The Nebuliser

    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 #6/27401 Varian ELSD Service Manual...
  • Page 25 The IQ/OQ procedure must now be preformed to ensure the detector is performing as specified (see PMT section pg 51) A quality control test must be performed following nebuliser removal, to ensure detector performance. (Appendices 3 and 4 Varian ELSD Operation Manual) #6/27401 Varian ELSD Service Manual...

  • Page 26: Replacing The Nebuliser Heater Assembly

    Replacing The Nebuliser Heater Assembly When required: Failure of Nebuliser heater Tools required: Allen keys Spanners Parts required: Varian Neb mount assembly (#PL0890-0485) Ensure that the detector has cooled down before proceeding Ensure that all gas and solvent connections are disconnected prior to proceeding...
  • Page 27 Disconnect 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 #6/27401 Varian ELSD Service Manual...

  • Page 28: Replacing The Nebuliser Chamber

    “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 in diagram #6/27401 Varian ELSD Service Manual...
  • Page 29 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 #6/27401 Varian ELSD Service Manual...

  • Page 30: Replacing The Solvent Leak Assembly

    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 sensor cable assembly. #6/27401 Varian ELSD Service Manual...

  • Page 31: Replacing The Vapour Sensors

    Tools required: Access key Small screwdriver 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...
  • Page 32 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. #6/27401 Varian ELSD Service Manual...
  • Page 33 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 screwdriver. a small #6/27401 Varian ELSD Service Manual...

  • Page 34: Replacing The Fan Assembly

    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...
  • Page 35 (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 #6/27401...

  • Page 36: Overview Of Varian 380-Lc Evaporator Assembly

    Overview of Varian 380-LC Evaporator Assembly The Varian 380-LC evaporator assembly comprises 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.

  • Page 37: Removing And Cleaning The Evaporator Cartridge (Diffuser)

    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). #6/27401 Varian ELSD Service Manual...
  • Page 38 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. #6/27401 Varian ELSD Service Manual...

  • Page 39: Replacing The Evaporator Heater Assembly (Evaporation Tube)

    Remove the evaporator tube from the nebuliser chamber as described in “Replacing the nebuliser chamber” (pg Do not discard evaporator cartridge. Carefully remove the opposite end of the evaporator tube from the optical block assembly. #6/27401 Varian ELSD Service Manual...
  • Page 40 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 #6/27401 Varian ELSD Service Manual...

  • Page 41: Replacing The Mass Flow Controller

    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. #6/27401 Varian ELSD Service Manual...

  • Page 42: Replacing The Gas Inlet Plug Assembly

    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. #6/27401 Varian ELSD Service Manual...

  • Page 43: Replacing The Gas Inlet Assembly

    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. #6/27401 Varian ELSD Service Manual...
  • Page 44 Remove the two screws to take out and replace the gas valve. #6/27401 Varian ELSD Service Manual...

  • Page 45: Replacing The Nebuliser Gas Regulator

    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. #6/27401 Varian ELSD Service Manual...
  • Page 46 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 #6/27401 Varian ELSD Service Manual...

  • Page 47: Overview Of Varian 385-Lc Evaporator Assembly

    Overview of Varian 385-LC Evaporator Assembly The evaporator assembly of the Varian 385-LC comprises a temperature controlled 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..

  • Page 48: Removing And Cleaning The Varian 385-Lc Evaporator Cartridge (Diffuser)

    Removing And Cleaning The Varian 385-LC Evaporator Cartridge (Diffuser) When required: 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.
  • Page 49 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. #6/27401 Varian ELSD Service Manual...

  • Page 50: Replacing The Varian 385-Lc Cooled Evaporator Assembly

    Replacing The Varian 385-LC Cooled Evaporator Assembly When required: Failure or damage to the Evaporator Heater Assembly / Evaporation tube become irreversibly 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...
  • Page 51 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. #6/27401 Varian ELSD Service Manual...
  • Page 52 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. #6/27401 Varian ELSD Service Manual...
  • Page 53 Finally, tighten the bracket to the sidewall of the ELSD, using the screws highlighted in green. #6/27401 Varian ELSD Service Manual...

  • Page 54: Overview Of Optical Assembly

    Overview 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 #6/27401...

  • Page 55: Removing The Photodetector (Pmt) Assembly

    (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. #6/27401 Varian ELSD Service Manual...
  • Page 56 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. #6/27401 Varian ELSD Service Manual...

  • Page 57: Adjusting Photodetector (Pmt) Sensitivity

    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 coarse gain adjustment The left component is the fine gain adjustment #6/27401 Varian ELSD Service Manual...
  • Page 58 ⎛ ⎞ necessary offset value using the equation Original Offset ⎜ ⎜ ⎟ ⎟ Target Glucose resp shown. ⎝ ⎠ Glucose Response (mV) The OFFSET value should not exceed 140mV. #6/27401 Varian ELSD Service Manual...

  • Page 59: Replacing The Led Light Source Assembly

    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 #6/27401 Varian ELSD Service Manual...
  • Page 60 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. #6/27401 Varian ELSD Service Manual...

  • Page 61: Cleaning The Optical Lens Assembly

    Use a small screwdriver to release the spring (see later). Remove the lens for cleaning using lint free optical lens tissue. Refit the lens and reassemble referring to the optical assembly diagram to orientate the lens correctly. #6/27401 Varian ELSD Service Manual...
  • Page 62 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. #6/27401 Varian ELSD Service Manual...

  • Page 63: Replacing The Optical Light Trap

    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. #6/27401 Varian ELSD Service Manual...
  • Page 64 Using an Allen key, loosen the grub screw (as indicated) and carefully pull out the optical light trap as shown. #6/27401 Varian ELSD Service Manual...

  • Page 65: Replacing The Optical Heater

    Disconnect the optics heater cable (as highlighted) from the main PCB board. Replacement of the optics heater fuse (as highlighted) is also recommended when the heater is replaced. #6/27401 Varian ELSD Service Manual...

  • Page 66: Removing & Cleaning The Prism Assembly

    (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 #6/27401 Varian ELSD Service Manual...
  • Page 67 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. #6/27401 Varian ELSD Service Manual...

  • Page 68: Electronics

    Defective Main Control PCB Tools required: Screwdriver 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 &...
  • Page 69 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 #6/27401 Varian ELSD Service Manual...

  • Page 70: Replacing The Power Supply

    Defective or Failed Power Supply Tools required: Screwdriver Allen Keys Parts required: Varian 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.
  • Page 71 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. #6/27401 Varian ELSD Service Manual...
  • Page 72 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. #6/27401 Varian ELSD Service Manual...

  • Page 73: Firmware

    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.

  • Page 74: Device Identifier

    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”...

  • Page 75: Upgrading Firmware

    10. Exit the HexTerm program and turn off the instrument. 11. On the back of the Varian ELS detector move the switch, located below the serial connector, to the down position.
  • Page 76 Figure 1 Terminal program Figure 2 Communications dialog #6/27401 Varian ELSD Service Manual...
  • Page 77 Figure 3 Successful Communications Figure 4 Initializing the Programming #6/27401 Varian ELSD Service Manual...
  • Page 78 Figure 5 Selecting the HEX file Figure 6 Downloading the Program #6/27401 Varian ELSD Service Manual...
  • Page 79 Figure 7 Programming the EPROM #6/27401 Varian ELSD Service Manual...

  • Page 80: Programming Device Identity

    ID (figure 11) To set the ELSD device ID to 1, select the SET ID 1 Check the device ID has been set to the correct value by selecting GET ID. The output should read “001B0000000001B6” #6/27401 Varian ELSD Service Manual...
  • Page 81 Figure 8 ELSD Device ID Terminal program Figure 9 Communications dialog #6/27401 Varian ELSD Service Manual...
  • Page 82 Figure 10 Successful Communication with Get Data command #6/27401 Varian ELSD Service Manual...
  • Page 83 Figure 11 Device ID displayed #6/27401 Varian ELSD Service Manual...

  • Page 84: Identifying Parts And Materials

    IDENTIFYING PARTS AND MATERIALS Description Part No 380-LC Evaporative Light Scattering Detector (110v) PL0890-0110 380-LC Evaporative Light Scattering Detector (240v) PL0890-0240 385-LC Evaporative Light Scattering Detector (110v) PL0890-1110 385-LC Evaporative Light Scattering Detector (240v) PL0890-1240 Analogue Output Cable PL0890-0300 Gas Inlet Tube (2m) PL0890-0305 Exhaust Hose (PVC-2.0m)
  • Page 85 Varian 380-LC Power Supply PL0890-0520 Gasl Inlet Frit (10µm) PL0890-0525 MFC Inlet Plug PL0890-0530 Varian 385-LC Power Supply PL0890-0535 FFKM O-ring (19.30x2.40) PL0890-0540 FFKM Neb O-Ring (6.0x1.0) PL0890-0545 PTFE Nebuliser 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)

  • Page 86: Instrument Specifications

    Serial I/O (RS232) Contact Closure Remote Start Input Operation Graphical Vacuum Fluorescent display and keypad Windows based PC control Power Requirements 90/120V AC or 220/250V AC, 50/60Hz Dimensions (wxdxh) 200x450x415mm Weight Varian 380-LC 11Kg Varian 385-LC 13Kg #6/27401 Varian ELSD Service Manual...

  • Page 87: Cleaning & Decontamination Procedures

    Identify and if possible correct source of the leak. Inspect cabling, parts and surfaces to determine whether any damage has occurred. If in doubt, contact Varian, Service Dept for assistance. Allow the interior and exterior of the instrument to dry out completely before closing the cover and reconnecting power.

This manual is also suitable for:

385-lc

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