OHAUS VXMNFS Manual Del Usuario página 7

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Your Mini Vortex Mixer is ready for most one-handed applications. The Mini Vortex
Mixer operates by mixing tubes just prior to testing.
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These units are not intended for continuous use over extended periods of time. A
built-in temperature sensor will prevent the unit from overheating by shutting the motor
down. If this occurs, allow the motor to cool down and the unit will be able to resume
normal operation. Decrease the duration of the time unit is used between rest periods.
See page 8-9 for 'Head/Accessory Installation Instructions'.
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The Fixed Speed Mini Vortex Mixer runs only at 3200rpm (2500rpm for 230V).
1. Plug the power cord into a properly grounded outlet. The unit is now on and in a
standby mode.
2. The vessel you are using must be pushed down on the head attachment to achieve
motion. To get the desired mix, vary the angle of contact and pressure against the
head.
3. The mixer will return to standby mode when the vessel is lifted off the head.
4. The unit 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: DO NOT use large accessories on the Fixed
Speed Mini Vortex Mixer. This unit is designed for use with cup head or 3" (7.6cm)
head with 3" (7.6cm) rubber head cover only.
5. To completely cut off power to the unit, disconnect the power cord from the wall
outlet.
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1. Make sure the 3-way rocker switch is in the center, off position. Plug the power
cord into a properly grounded outlet.
2. For continuous operation, push the rocker switch to the right, on position. For
intermittent/touch operation, push the rocker switch to the left, auto position.
3. In either case, turn the speed knob to 1. In the on position, you will see the head in
motion immediately. In the auto position, the vessel you are using must be pushed
down on the head attachment to achieve motion. To get the desired mix, vary
the speed, using the speed knob, and/or vary the angle of contact and pressure
against the head.
4. When finished with either continuous or intermittent operation, return rocker switch
to the center, off position.
5. The continuous, on mode is for the larger accessories. In continuous on mode,
DO NOT run the unit above 900rpm (analog speed setting of approximately 5).
6. The intermittent, auto mode is intended for short mixing times of one (1) minute
or less at full speed. A rest period of two (2) minutes is recommended to minimize
the possibility of overheating the motor. The unit 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 the unit above 900rpm, (analog speed setting of
approximately 5). UNIT DAMAGE WILL OCCUR.
7. To completely cut off power to the unit, disconnect the power cord from the wall
outlet.
OPERATING TIP: Touch mode operation is most effective when used at settings of
4 or greater.
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