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Allied Telesis 6870 manual

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Table of contents for the manual

  • Page 1

    15 Liberty St., Metuchen NJ 08840 1-800-LAB-SPEX (1-800-522-7739) ext 465 6870 FREEZER/MILL ® OPERATING MANUAL This manual is part number 85018[...]

  • Page 2

    Page 2 of 25 SPEX SamplePrep LLC 9.24.07 TABLE OF CONTENTS SECTION DESCRIPTION PAGE 1.0 Introd uction .................................................................................................................................. 3 2.0 Specif icati ons ..............................................................................................[...]

  • Page 3

    Page 3 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 1.0: INTRODUCTION SPEX SamplePrep Freezer/ Mills are cryogenic laboratory mills that cool samples to cryogenic temperatures, and pulverize them by m agnetically shuttling a steel impactor back and forth against two stationary end plugs. Since the vial is closed, the integrity o f its contents is main[...]

  • Page 4

    Page 4 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 2.0: 6870 FREEZER/MILL SPECIFICATIONS Type of mill: cryogenic impact mill Grinding mechanism: steel im pactor driven by dual electromagnets Coolant: liquid nitrogen Weight (empty, without vial or coolant): a pprox. 44 lbs. (20 Kg) Grinding Vials: one 6801 Large Vial, one Mid-Size Vial (6871, 6881, 68[...]

  • Page 5

    Page 5 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 3.0: UNPACKING Inspect the exterior of the packing box and repor t any visible damage to the carrier. Remove all packing documents from the exterior of the box, a nd save them for your records. Open the top of the shipping box. Remove the packing material and accessories, and gen tly remove the Freez[...]

  • Page 6

    Page 6 of 25 SPEX SamplePrep LLC 9.24.07 6870 FREEZER/MILL, BACK VIEW SECTION 4: SETTING UP The 6870 Freezer/Mill weighs 44 pounds (20 Kg) empty. The lid opens fro m the front and the lid latch is in the center. The AC Input module is on the back of the cab inet, and includes the power switch and fuse tray. The fuse tray can be opened with small sc[...]

  • Page 7

    Page 7 of 25 SPEX SamplePrep LLC 9.24.07 The control panel is a touch-screen, activated by a stylus. The Freezer/Mill is progra mmed and operated through this control panel, whose successive screens are described and illustrated in Section 5, starting on page 8. Programmable parame ters include pre-cooling time, grinding tim e, cooling time between[...]

  • Page 8

    Page 8 of 25 SPEX SamplePrep LLC 9.24.07 4.4 Grinding Vial Sizes, Adapters, and Vial Openers. Large vials (6801, 6871) are run one at a time in the 6870 Freezer/Mill, w ithout any adapter. Large vials are opened by the 6804 Extractor/Vial Opener, which is p art of the 6870L Accessory Package. Mid-Size vials (6881, 6883, 6885) ar e run one at a time[...]

  • Page 9

    Page 9 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 5.0: TOUCHSCREEN DISPLAYS The 6870 Freezer/Mill is programmed and operated through a series of touchscreen displays. Transition between screens, a nd all programming and operating commands, are done by touching the screen with a stylus. D o not use a sharp point as this can damage or deface the scree[...]

  • Page 10

    Page 10 of 25 SPEX SamplePrep LLC 9.24.07 6) Third cycle: the coil is activated for the final 2-minute cycle. When it is done, the program is over and the sample has been ground for a total of 6 m inutes. 5.3 STATUS SCREEN To run the program displayed on the CURRENT SETTINGS screen, touch “Start SCRN.” This transfers you to the STATUS screen, w[...]

  • Page 11

    Page 11 of 25 SPEX SamplePrep LLC 9.24.07 During the PRECOOL stage the TIME REMAINING line co unts down the time for that stage in 5-second increments: 4:45, 4:40, 4:35, etc. After the PRECOOL stage comes the first GRINDI NG stage, and the screen displays STATUS: GRINDING. The TIME REMAINING line will displa y the time left in that grinding stage. [...]

  • Page 12

    Page 12 of 25 SPEX SamplePrep LLC 9.24.07 impactor strikes both ends of the vial, a rate of 10 represents 20 impacts per second. T he factory default setting for the rate is 10, and any saved program w ill revert to a rate of 10. To stop a program, touch STOP. The program will end. If RUN is pressed the entire program will start over. To pause duri[...]

  • Page 13

    Page 13 of 25 SPEX SamplePrep LLC 9.24.07 To store the new program on the CURRENT SETTINGS screen, or to recall a stored program to override the new program, touch STO/RCL to take you to the first of two STORE/RECALL screens: 5.5 STORE/RECALL SCREENS Rcl Sto PRESET O: FISH SCALES Lbl Rcl Sto PRESET 1: Lbl Rcl Sto PRESET 2: Lbl Rcl Sto PRESET 3: Lbl[...]

  • Page 14

    Page 14 of 25 SPEX SamplePrep LLC 9.24.07 As you touch the letter/number keys, what you ha ve entered appears above the keyboard in a mini-screen with a centered cursor. The SHIFT key lets you shift back and forth from upper case to lower case. Touching the SPACE key advances the cursor one space. Touching the BACK key sends th e cursor back one sp[...]

  • Page 15

    Page 15 of 25 SPEX SamplePrep LLC 9.24.07 Note that there are three different sizes of vial that can be ru n in the 6870 Freeze r/Mill: Large, Mid-Size, and Small. Mid-Size vials must be run with a 6886 Adapter in the coil, and Sm all vials must be run with a 6806 Adapter in the coil. Large vials do not need an Adapter. See Section 4.4 for details.[...]

  • Page 16

    Page 16 of 25 SPEX SamplePrep LLC 9.24.07 procedure for your own materials should be dete rm ined by trials; in practice almost no two materials grind alike. Avoid overfilling vials as this greatly reduces grinding efficiency. If at first the sample doesn’t gri nd as intended, try these strategies: • Reduce the overall weight of the sample. (So[...]

  • Page 17

    Page 17 of 25 SPEX SamplePrep LLC 9.24.07 Accessory Packs can be placed in an insulated container to hold the v ials upright during chilling. At the same time, chill an im pactor separately. As soon as the submerged end of the vial is chilled, drop in the cold sam ple and then the chilled impactor. (Always wear insulated gloves when handling chille[...]

  • Page 18

    Page 18 of 25 SPEX SamplePrep LLC 9.24.07 6.32 Opening the Vials To open a vial, slip the open end of the appropr iate Extracto r/Vial Opener over a threaded end- plug, align the pegs in the end-plug with the sl ots in the Extractor, and turn the knob clockwise until the end-plug is drawn out. If the end-plug is drawn out within a m illimeter or tw[...]

  • Page 19

    Page 19 of 25 SPEX SamplePrep LLC 9.24.07 The impactor will have to be separated from the sample and can be handled with gloved fingers, a strong magnet, tongs, or pliers. Tools without a good gripping surface are li kely to slip off the impactor. If some condensation on a cold sam ple is unaccept able, you can either wait for the sample vial to wa[...]

  • Page 20

    Page 20 of 25 SPEX SamplePrep LLC 9.24.07 6.4 Checking The Liquid Nitrogen Level Every time you remove or insert a vial, note the le vel of liquid nitrogen (LN) in the tub. You should top off the LN when needed as a matter of routine. If your programmed grinding cycle includes more than twenty or th irty minutes of actual grinding time, you should [...]

  • Page 21

    Page 21 of 25 SPEX SamplePrep LLC 9.24.07 Operation : when the 6870 Freezer/Mill is set up for the firs t run of the day, with a loaded vial in the coil, make sure the LN valve on the supply tank or line is open. Go to the STATUS screen and touch RUN. The Auto-Fill valve will open and let LN into the Free zer/Mill tub. The valve may close and open [...]

  • Page 22

    Page 22 of 25 SPEX SamplePrep LLC 9.24.07 temperature before attempting to clean it. Once the unit has attained room tem perature, wipe down the unit as indicated previously. Af ter every period of use, the m ill is going to be wet with condensation since the Freezer/Mill will pi ck up moisture as long as it is cold. To maintain the exterior of the[...]

  • Page 23

    Page 23 of 25 SPEX SamplePrep LLC 9.24.07 7.04 Contacting SPEX SamplePrep LLC Within the United States, write, telephone, or e-mail us at: SPEX SamplePrep LLC 15 Liberty St. Metuchen, New Jersey 08840 Tel.: 732-549-7144 or 800-522-7739 Fax: 732-906-2492 Website: www.spexcsp.com E-mail: sampleprep@spexcsp.com Outside the United States, contact the S[...]

  • Page 24

    Page 24 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 8.0: TROUBLE-SHOOTIN G GUIDE, PAGE 1 OF 2 PROBLEM CAUSE SOLUTION 1 The unit does not turn on No power Ma ke sure power cord is plugged into outlet and inlet 2 The unit does not turn on No power Check outlet for power and correct as required 3 The unit does not turn on Power switch not turned on Swit[...]

  • Page 25

    Page 25 of 25 SPEX SamplePrep LLC 9.24.07 SECTION 9.0: TROUBLE-SHOOTIN G GUIDE, PAGE 2 OF 2 PROBLEM CAUSE SOLUTION 14 Blunt end-plug doesn’t come off room-temperature vial Hard to grip Warm vial under hot water. Use wide-jaw pliers if necessary. 15 Extractor jams Water on extractor screws or bell Dry extractor before each use 16 Extractor jams Ic[...]