Brookfield DV2+Pro Viscometer - Manual (Page 16)

Brookfield Engineering Labs., Inc. Page 16 Manual No. M03-165-F0612
how to install a Custom Speed Set.
To select a Viscometer speed first press either the UP or DOWN arrow keys which will cause the
area to the right of RPM to display the currently selected speed. Figure II-8 shows the DV-II+Pro
is operating at 6.0 RPM, and the current selected speed is 6.0 RPM.
Caution: If you select custom speeds but do not choose any speed values, only zero RPM will be
available in the scroll list.
CP 123.4 20.1C
6.0 RPM6.0 % 15.6
Figure II-8
If the ARROW key is pressed just once and then released, the characters “RPM” will blink for
three seconds, then will cease blinking resulting in no change to the speed entry.
Note: The speed selection process remembers the last value of scrolled-to
speed so that the next time you initiate a speed change (by pressing an
ARROW key), the DV-II+ Pro will begin its scroll display from the last
entered value.
The last-scrolled-to speed does not necessarily have to be the same as the speed at which the DV-
II+Pro is currently running. The user may operate at a given speed and pre-set the DV-II+Pro to
the next desired speed before that speed will be used. For example, if the DV-II+Pro is currently
running at 6.0 RPM and was previously scrolled to 12 RPM, a single press of either ARROW
key would result in the Figure II-9 screen display:
cP 123.4 20.1C
6.0 RPM12 % 15.6
Figure II-9
Pressing the SET SPEED key would cause the DV-II+Pro to begin running at 12 RPM.
If the user did not press the SET SPEED key, the DV-II+Pro would continue to run at its current
speed of 6 RPM. In fact, you may scroll to a new speed (12 RPM in this example) and press the
SET SPEED key at any future time (without further pressing an ARROW key) to immediately
cause the DV-II+Pro to run at the new speed. Pressing the ARROW key at any time reminds the
operator of what was selected for the next speed.
If an ARROW key is pressed and held the DV-II+Pro will scroll up (or down) through the speed
table. When it reaches the last speed in the list (either at the top or bottom of the list) the speed
displayed will “roll-over” to either the first or last speed in the table and the scroll action will
continue.
When the required speed is displayed, release the ARROW key to halt further scrolling. The
selected speed will be visible for approximately two seconds. Press the SET SPEED key to
immediately begin rotation at the new speed.
Pressing the MOTOR ON/OFF/ESCAPE key stops the Viscometer spindle rotation. Pressing this
key sets the DV-II+Pro to 0.0 RPM and causes the screen display to change as shown in Figure
II-10: