OHAUS HOHTDG Manual De Instrucciones página 7

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Perating nStrUctionS
IMPORTANT: This unit is designed for intermittent use only. After every 10 minute cycle
it must have at least 1 minute cool down period. Before processing any samples, it is
advisable to perform a dry run with your plates or tubes with appropriate grinding material
to determine whether they are durable for your homogenization process.
1. Getting ready:
a. Place unit on a sturdy surface.
i. If this surface is permanent, you can remove the plastic covers from the
inner rubber feet. These will adhere to the surface.
ii. If this is not the permanent location for the unit, simply leave the plastic on
the rubber feet.
b. Plug cord into a properly grounded outlet.
c. Switch the power switch to the ON position by pressing the side of the switch
labeled with a dash (-).
d. Press the STANDBY button:
i. An LED will light over the button and the LED screens will illuminate.
2. Load plate:
a. Turn the lid latch counter clock wise to unlock the lid.
b. Open lid.
c. Loosen the sample clamp by pushing the black clamp lock knobs and turning
the handle counter clock wise until the clamp is fully up.
d. Place sample under the clamp.
e. Tighten by turning the handle clockwise until tight.
i. You will hear the clicking of the screw lock. If the lock does not click, pull
the black lock knobs forward to engage the lock.
f. Close the lid and lock it in place.
i. Turn the lid latch clockwise to secure lid.
IMPORTANT: If the locking arm is at the wrong height for the sample, it can be adjusted
up or down by removing the black hex head screw with Allen wrench included and, with the
lock screw loose, repositioning it to a different hole on the vertical arm. DO NOT run the
unit without the black hex head screw through one of the holes in the vertical arm.
3. Setting unit:
THE LID MUST BE CLOSED AND LOCKED FOR UNIT TO BE SET OR TO FUNCTION.
a. Standard Set:
i. Press the speed up or down buttons to reach the desired speed.
1. Note: Hold down the speed buttons for quick setting.
ii. Press the time up or down buttons to reach the desired time.
1. Note: Hold down the time buttons for quick setting.
iii. Once the desired speed and time is set, press the speed ON/OFF
button to start unit function.
iv. Timer must be set in order for unit to run. If time is set to 00:00, unit
will not function.
NOTE: IF THE LID IS OPENED AT ANY TIME DURING OPERATION, THE UNIT
WILL STOP AND REQUIRES THE USER TO PRESS START AGAIN TO RESTART
FUNCTION.
EN
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