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SPEX SamplePrep 6875 Freezer/Mill Series Скачать руководство пользователя страница 20

6875 Freezer/Mill

Page 20 of 42

SPEX® SamplePrep LLC

DEC 2015

5.4 Saved Protocols

(Cont’d)

5.4.3 Edit Saved Protocols

To edit a saved protocol, touch the protocol to highlight the name

(BLUE)

. Then touch the EDIT

button. From the Edit Protocol screen change parameters and/or name, then touch the DONE
button.

5.4.4 Recalling a program

In the

SAVED PROTOCOLS

screen, touch the protocol to highlight the name

(BLUE)

. Then touch

the LOAD button to send protocol to the

CONTROL PANEL

screen. Review the parameters. To

RUN the protocol touch the button to initiate the protocol.

6.0 OPERATION

6.1 Adding Liquid Nitrogen Coolant

Liquid nitrogen is added to the 6875 Freezer/Mill with the lid open. The 6875 should be filled
until the LN level reaches approximately 2 inches (5.1 cm) below the lip of the tub. If the liquid
nitrogen is above this level when the lid is closed, LN can splash outside the tub.

Always close the

lid slowly to avoid splashing

.

Liquid nitrogen will most likely be available either in a large tank with a flexible steel hose, or in
smaller Dewar flasks. The 6875 Freezer/Mill typically consumes 10 to 15 liters of LN during initial
cool-down, and another 4 to 6 liters per hour, depending on use.

Figure 13

– Clear Protocol Screen

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Содержание 6875 Freezer/Mill Series

Страница 1: ...Liberty Street Metuchen NJ 08840 1 855 GET SPEX 438 7739 or 732 623 0465 www spexsampleprep com 6875 FREEZER MILL OPERATING MANUAL For 6875 115 and 6875 230 Freezer Mills this manual is part number 87...

Страница 2: ...rk may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording except as may be expressly permitted by the 1976 Copyright Act or in writi...

Страница 3: ...4 Saved Protocols 18 6 0 Operation 20 6 1 Adding Liquid Nitrogen Coolant 20 6 2 Loading Samples into Freezer Mill Vials 21 6 3 Loading a Vial into the Freezer Mill 23 6 4 Removing a Vial from the Fre...

Страница 4: ...zer Mill Page 4 of 42 SPEX SamplePrep LLC DEC 2015 11 0 Trouble Shooting Guide 38 12 0 Quick Protocols 39 13 0 Warranty 41 13 1 Product Specifications 41 13 2 To Arrange a Return Shipment 41 14 0 Cont...

Страница 5: ...mended maximum relative room humidity 70 from 5 C 31 C 40 F 88 F If the entire mill is chilled during operation components such as the gas cylinders controller and display screen can fail This damage...

Страница 6: ...any vial sample combination depends on sample properties cooling time grinding time desired outcome etc Effective capacity for a given sample is determined by experiment Overfilling a vial greatly re...

Страница 7: ...here are no parts missing and inspect the accessories We recommend storing the packaging materials in the event there is a need to return the unit for warranty service or repairs Each new 6875 Freezer...

Страница 8: ...se tray can be opened with small screwdriver or knife blade Also on the back of the cabinet is the vent from the liquid nitrogen tub There are gas cylinders on both sides of the cabinet to control the...

Страница 9: ...ols 0 for OFF and l for ON Press the l side of the switch to turn the power ON or press the 0 side of the switch to turn the power OFF When power to the mill is turned ON the controller display will l...

Страница 10: ...ing but must be lowered to insert or remove vials Do not run the 6875 Freezer Mill without a loaded vial in the chamber The lid must be shut and latched for the Freezer Mill to run Push the lid down w...

Страница 11: ...Accessory Package Most Small vials 6751 6761 and 6771 can be run one two three or four at a time in the 6875 Freezer Mill However they must be used in conjunction with the 6807 Multi Vial Holder The 6...

Страница 12: ...d by the liquid nitrogen LN sensor the LN level should be visually checked from time to time during extended runs as well as before every run The Control Panel displays the programmed run parameters a...

Страница 13: ...sample is ground for another 2 minutes 5 Cool Time the coil is inactive for 1 minute as in step 3 6 Cycle 3 the coil is activated and the sample is ground for another 2 minutes 7 Cool Time the coil is...

Страница 14: ...COOL time for these samples can be decreased or eliminated during the next run After all vials have been loaded lower the lid and secure the latch If the liquid nitrogen in the tub is not at the corre...

Страница 15: ...ark will appear next to that field Samples must be precooled Following the PRECOOL stage is the first GRINDING cycle stage The RUN TIME line will display the time remaining in that cycle of the grindi...

Страница 16: ...col Name is assigned to the run as a Saved Protocol Section 5 4 then the default name will be displayed as COUNTDOWN When the grinding program has ended the screen will display RUN COMPLETE Figure 9 T...

Страница 17: ...change parameters precool time grinding time cool down time cycles and rate touch the arrow buttons on the CONTROL PANEL screen The changes will appear in the blue area between the arrows as shown in...

Страница 18: ...t programed run setting that was not saved The Default protocol can be changed without saving the new settings as described in section 5 4 5 4 1 Storing a new program To store the new program or to re...

Страница 19: ...hing on the screen but returns the display to the SAVED PROTOCOLS screen To run the newly saved protocol touch the protocol to highlight BLUE the name Then touch the LOAD button to send protocol to th...

Страница 20: ...tocol touch the button to initiate the protocol 6 0 OPERATION 6 1 Adding Liquid Nitrogen Coolant Liquid nitrogen is added to the 6875 Freezer Mill with the lid open The 6875 should be filled until the...

Страница 21: ...is approximately on third full Initially LN will boil off vigorously but as the tub cools the boiling will subside Add more LN gradually to avoid splashing and boiling over until the LN level is appro...

Страница 22: ...he LN capacity of the tub but you can top off the LN and repeat the run if necessary Table 1 Typical Sample Sizes Sample Large Vial 6801 6803 6871 Mid Size Vial 6881 6883 6885 Small Vial 6751 6761 677...

Страница 23: ...mill as long as care is taken not to let the sample touch the warm end plug before it has cooled down CAUTION Never force an end plug warm or cold into a polycarbonate cylinder warm or cold Polycarbon...

Страница 24: ...plug with the slots in the Extractor and turn the knob clockwise until the end plug is drawn out If the end plug is drawn out within a millimeter or two of the end of the center cylinder and stops ro...

Страница 25: ...es which were tacky spongy etc at room temperature will also return to that state as they warm up and may agglomerate The impactor will have to be separated from the sample and can be handled with glo...

Страница 26: ...extent if left in contact with water for too long All stainless steel parts should be dried after washing The steel parts of the chromium free 6771 6871 and 6883 vials can also be washed disinfected...

Страница 27: ...e 6820 Auto Fill System Four foot and six foot transfer hoses of standard design part numbers 6906 and 6907 can be purchased from SPEX SamplePrep or custom transfer hoses can be designed and supplied...

Страница 28: ...of the safety valve is to have an outlet for nitrogen vapor in case the mill and supply tank valves are both shut and pressure builds up inside the hose When installing the safety valve and transfer...

Страница 29: ...s the Home Icon button Touching the Home Icon returns the user to the Home screen Figure 4 8 1 Run History To recall the Run History touch the Run History button The Date Time and Run Protocol data ar...

Страница 30: ...ractors as shown in Figure 17 To open any of the categories listed touch the button to the right of the screen For example pressing the button for the Extractors displays the screen for items availabl...

Страница 31: ...on on the Resources screen In the Training screen the operating manual instructions and how to use videos are listed To open any of the categories listed on the screen touch the button name as display...

Страница 32: ...chnical Support To access the Technical Support screen touch the Tech Support button on the Resources screen SPEX contact information for the USA Headquarters and Europe Sales Office is listed on this...

Страница 33: ...e capacity 0 5 4 0 ml 6756 Small Extractor Vial Opener Used to remove the End Plugs from the Center Cylinders of Small Grinding Vials Particularly useful for opening cold grinding vials immediately af...

Страница 34: ...ld Grinding Vials immediately after removal from the Freezer Mill Compatible with the following Large Grinding Vials 6801 Large Grinding Vial Set and 6871 Large Cr Free Grinding Vial Set Also compatib...

Страница 35: ...carbonate Center Cylinders Includes one 6871P Large Cr Free Steel Impactor two 6871E Large Cr Free Steel End Plugs and one pack of 6801C4 Large Polycarbonate Center Cylinders Sample capacity up to 50...

Страница 36: ...trogen exposure Highly recommended when operating all SPEX SamplePrep Freezer Mills Sold in pairs 6900M Cryogenic Gloves Size Medium Cryogenic gloves to protect hands and arms from liquid nitrogen exp...

Страница 37: ...of the unit first disconnect the Freezer Mill from its electrical source Then lightly spray with a mild window cleaner or similar product and wipe unit down If the 6875 Freezer Mill requires service p...

Страница 38: ...rth Water in vial has frozen impactor Impactor is magnetized Too much sample is in the vial or sample pieces are too large Remove vial and replace vial and contents with a dry unit or RAP ends of the...

Страница 39: ...e Tooth Hair human animal Tissue human animal Grinding Protocol 50g 10mm 6875 6875D 6801 6885 6808 Extractor 6887 Holder Precool 10 min 5g 10mm 6775 6751 6756 Extractor Grinding Cycles 3 cycles 1 min...

Страница 40: ...tor Precool 15 min 15 min 2 5g 6775 6751 6756 Extractor Grinding Cycles 6 cycles 2 min each cycle 4 cycles 2 min each cycle Cool Time 2 min 2 min Rate 10 cps 12 cps Teflon PTFE Grinding Protocol Therm...

Страница 41: ...or misuse 13 1 Product Specifications Every effort has been made to provide complete and accurate product operating information in this manual However since specifications are subject to change witho...

Страница 42: ...ww spexsampleprep com E mail sampleprep spex com In Europe please contact our European Sales Office at SPEX Europe 2 Dalston Gardens Stanmore Middlesex HA7 1BQ United Kingdom Tel 44 0 208 204 6656 Fax...

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