Operating Instructions - VWR 1000 Mode D'emploi

o I
PeraTIng nsTruCTIons
The Large Capacity Stirrer has been designed for the speed and time functions
to work independently of one another. The speed can be re-set without re-setting
the timer and the timer can be stopped and started without interrupting the stirring
function.
1. getting ready:
a. Plug the power cord into a properly ground outlet. The standby
indicator light will illuminate, verifying power to the unit.
b. Press the standby button to move the unit from standby
mode. The standby indicator light will turn off and the speed/time
displays will illuminate and display the previously used settings.
2. Setting speed:
a. Press the up/down arrows below the speed display until you reach
the desired speed. When you release the arrow button, the unit will
blink off and then on indicating the new set speed has been accepted.
b. Press the on/off button to start the stirring function. The indicator light below
the speed display will illuminate to indicate the stirring function is in-use.
While accelerating, the indicator light will blink until set-point is reached
and then will remain lit until stirring has ceased. The microprocessor
controlled ramping feature slowly increases speed until the set-point is
reached which helps to avoid splashing and provides excellent low end
control. The microprocessor also regulates the stirring speed, sensing your
requirements whether stirring an aqueous, viscous, or semi-solid solution.
c. Speed adjustments can be made without interrupting stirring by
using the up/down arrows below the speed display. After the change
has been made and you release the arrow button, the unit will blink
off and then on indicating the new set speed has been accepted.
d. To stop the stirring function, press the on/off button below the speed display.
3. Setting time to zero (0:00) and continuous mode: Accumulated time.
a. and hold the on/off button below of the time display. After three
(3) seconds, the display will indicate the previous set time.
b. Simultaneously press both the up and the down arrows, the display will
indicate zero (0:00). The unit time is now set to zero (0:00) minutes.
Alternately, you can use the up/down arrows to get to zero (0:00).
c. Press the on/off button below the time display. The display
will indicate accumulated time. The up/down arrows will become
inactive. To stop timer, press the on/off button again. iMPOrtANt:
This will NOt interrupt the shaking function. Press the on/
off button below the speed display to interrupt the shaking function.
d. To reset, press and hold the on/off button below the time display. After three (3)
seconds the display will indicate the previous set time, which was zero (0:00).
4. Setting timed mode: Programmed time.
a. Press the up/down arrows below the time display until you reach the
desired time.
b. Start this function by pressing the on/off button below the time display. The
unit will run for the selected time, the up/down arrows will become inactive
while the timer is running. The unit will stop shaking when time display reaches
zero (0:00). Four (4) audible beeps will indicate the time down function is
complete. The time display will default back to the set time. To repeat this
function for the same set time, simply depress the on/off button again.
c. To interrupt an automatic timing cycle before it is completed,
press the on/off button below the time display. The display
will flash off and on to indicate the time function is on "hold".
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