E-Class; Turning Shaker On; Setting Shaking Speed; Calibrating Shaking Speed - Barnstead International MaxQ 4000 Manual

O
PERATION
Note
There will be a 3 second delay from
the time power is turned on to the
time the shaker is activated.
Control panel will illuminate when
shaker power is activated. There
will be an audible beep before the
display lights up.
Note
Speed can be changed without
pressing the start or stop membrane
switches. Simply press the appro-
priate up or down membrane switch
until desired rpm is reached. There
will be an audible beep before the
display lights.
20

E-Class

Please refer to page 12 for control panel reference.

Turning Shaker On

Beginning with the shaker power off.
1. Press membrane power switch once (I) to turn
on shaker.
2. Press membrane power switch a second time
(O) to turn off shaker.

Setting Shaking Speed

1. Hold down appropriate arrow membrane switch
in the speed module of the control panel, up or
down, until desired speed is set up to 500 rpm.
SET RPM light will illuminate.
2. Press START membrane switch to begin shak-
ing. RPM light will illuminate.
3. Press STOP membrane switch to end shaking.
SET RPM light will illuminate.

Calibrating Shaking Speed

1. Choose a speed for which calibration is desired
by using the shaker's up or down arrow keys.
2. Measure current shaker speed by using a digital
hand held tachometer.
3. If the tachometer reading matches the shaker
display, no calibration is necessary. If the
tachometer reading is different from the shak-
er's display, then calibration is required.
4. To get into the calibration mode, hold down the
START key, press and release the STOP key,
then release the START key.