#6750, FREEZER MILLS - Wolf Laboratories

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5.3 Run Screen (Cont’d) 6870 Freezer/Mill 5.3.2 Adjusting the Grinding Rate While in the RUN screen, the only parameter that can be modified is the RATE. It is adjusted by touching the up and down arrows next to the rate field. Touching the up arrow increases the rate 1 cps at a time, while touching the down arrow decreases the rate 1 cps. Continue tapping or holding the up or down arrow until the desired rate is reached. Rate is the number of back-and-forth cycles per second of the impactor. Since the impactor strikes both ends of the vial, a rate of 10 represents 20 impacts per second. The factory default setting for the rate is 10. The maximum grinding rate is 15 cps; the minimum is 5 cps. 5.3.3 Stopping or Pausing a Run To stop a program, touch STOP. The program will end. If RUN is pressed the entire program will start over. To pause during a grinding program, touch PAUSE. The RUN screen will hold the settings at that moment (elapsed time, cycle, etc.), and the PAUSE button turn yellow. To resume the program, touch RUN. This will restart the program at the point at which it was paused. Alternatively, pressing STOP will end the program. To change parameters (precool time, grinding time, cool down time, cycles), touch RETURN to go back to the CURRENT SETTINGS screen, and then touch SETTINGS to go to the SETTINGS screen (Section 5.4). Page 14 of 36 SPEX SamplePrep LLC March 2012
5.4 Settings Screen 6870 Freezer/Mill To change any of the settings, touch SETTINGS on the CURRENT SETTINGS screen. This will bring up the SETTINGS screen (Figure 7) and allow the user to change the settings. Touch to activate Figure 7 - Settings Screen with default settings To change any setting, touch the appropriate button to activate the field: CYCLES, PRECOOL, RUN, COOL, OR RATE. The button will change from gray to yellow, indicating that the field is active. For CYCLES, PRECOOL, COOL, and RATE touch the up or down arrows to adjust the setting. The changes will appear in the small field above the arrows (Figure 8). Once the desired setting has been reached, touch the setting name again to accept and transfer the setting to the field to the right of the setting button. This will deactivate that setting button, changing it from yellow back to gray. Alternatively, simply touching the button for the next setting to be modified will transfer the setting and activate the next button selected (Figure 9). Active buttons appear in yellow; inactive buttons are gray. To adjust the run time, touch RUN to activate, then touch MIN and use the arrows to set the desired minutes. Grind times can be also adjusted in 10 second increments using the SEC button. Touch SEC to activate and use the arrows to adjust the seconds. NOTE: New settings must be accepted by deactivating the corresponding setting name before returning to the CURRENT SETTINGS screen. Page 15 of 36 SPEX SamplePrep LLC March 2012
Page 1 and 2: 15 Liberty St., Metuchen, NJ 08840
Page 3 and 4: TABLE OF CONTENTS 6870 Freezer/Mill
Page 5 and 6: 2.0 6870 FREEZER/MILL SPECIFICATION
Page 7 and 8: 3.0 UNPACKING (Cont’d) Figure 2 -
Page 9 and 10: 4.2 Power Switch and Control Panel
Page 11 and 12: 5.0 TOUCHSCREEN DISPLAYS 6870 Freez
Page 13: 5.3 Run Screen (Cont’d) 6870 Free
Page 17 and 18: 5.5 Store/Recall Screens 6870 Freez
Page 19 and 20: 6.0 OPERATION 6.1 Adding Liquid Nit
Page 21 and 22: 6.2 Loading Samples into Freezer/Mi
Page 23 and 24: 6.5 Opening, Emptying, and Cleaning
Page 25 and 26: 6.5 Opening, Emptying, and Cleaning
Page 27 and 28: 7.2 Liquid Nitrogen Connection (Con
Page 29 and 30: 6870 Freezer/Mill 8.0 OPTIONAL 6814
Page 31 and 32: 10.0 ACCESSORIES FOR THE 6870 (Cont
Page 33 and 34: 11.0 TROUBLE-SHOOTING GUIDE 6870 Fr
Page 35 and 36: 12.0 WARRANTY 6870 Freezer/Mill SPE

#6750, FREEZER MILLS - Wolf Laboratories

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