Benutzeranleitung / Produktwartung 6870 des Produzenten Allied Telesis
Zur Seite of 25
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 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 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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