VWR Vortex Mixer Instruction Manual page 9

I ( .)
NTRODUCTION CONT
b. Place cup-head on post, aligning the "flat" inside of the head mounting hole, with "flat" on post.
c. Press center of head down firmly until it snaps into place.
d. To remove an installed head, hold housing with one hand and pull head straight up firmly.
For intermittent operation, push switch to "Auto" position. For continuous operation, push switch to "On" position.
In the "Auto" position, the vessel you are using must be pushed down to achieve motion. To get the desired mix, vary the speed of the motor and/or
the angle of contact and pressure against the mixing head.
O I
PERATING NSTRUCTIONS
1. Set speed by pressing the Up/Down arrows below the speed display until you reach the desired speed.
Speed while running the "On" position is 500 – 3000 rpm
Speed while running in the "Auto" position is 1000 – 3000 rpm
Speed while running in "Pulse" mode is 3000 rpm running for 30 seconds resting 10 seconds.
2. Set time by pressing the rocker switch to the "Auto" position. Press the Up/Down arrows below the Time display until you reach the desired time.
Times operation works in both "Auto" and "On" positions.
While running unit in timed mode, the Timer LED will display time remaining.
To run in continuous mode, reset the timer to zero (0) before running. Timer LED will display the accumulated time and run until you press
the rocker switch to the "Standby" position in the center.
3. The continuous "On" mode is for the larger accessories (insert retainer with foam inserts or ampule tube holders) In continuous "On" mode do
not run above 900 rpm.
4. When finished with either continuous, or pulse operation, return switch to "Standby" position in the center.
5. Pulse operation - Set the time if desired. Move the rocker switch to the "On"position, press the "Pulse" button. The Speed display will show "PULS".
The unit will run at 3000 rpm, cycling a run time of 30 seconds followed by a resting time of 10 seconds. The unit will continue until the timer
reaches zero or you stop the unit by moving the rocker switch to the "Standby" position in the center. If you are not running in "Timed" mode,
the unit will run until you move the rocker switch to the "Standby" position in the center.
6. The intermittent "Auto" mode is intended for short mixing times of one minute or less at full speed. A rest period of 2 minutes is recommended
to minimize the possibility of overheating the motor. Your Vortex Mixer can become warm to the touch with constant use. There is nothing wrong
with it. At high performance settings the motor (UL recognized component) simply puts out more heat.
IMPORTANT - When using larger accessories (insert retainer with foam inserts or ampule tube holders), DO NOT run above 900 rpm. UNIT DAMAGE
WILL OCCUR.
8