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Gilson Company, Inc.
Cabinet doors are equipped with safety interlock (see
Figure 1) which will not allow operation of the MD-2000
unless both doors are properly closed.
Top Cover Release Latch
Figure 1
Top cabinet door opens first and closes last. It is designed
to overlap the lower door as a safety feature.
Open both doors and inspect interior of the cabinet prior to
operation. Make sure there are no impediments blocking
roller rotation.
Close doors prior to operation. Bottom door closes first,
top door second – overlapping bottom door.
5.0 CONTROLLER OPERATION:
This section describes operation of the MD-2000
electronic controller. Reading and understanding the
information here will insure trouble-free operation of the
unit during testing procedures.
5.1 Mode Selection:
The MD-2000 is equipped with a controller that allows
test duration to be controlled either by elapsed time or
counted jar revolutions.
Micro-Deval Apparatus: MD-2000, MD-2000C & MD-2000F
Once the timer or counter mode of operation is selected,
that mode becomes the default method of operation until
reset by interruption of power. To change operation from
one mode to another, simply disconnect the MD-2000
from its power supply, then reconnect it. If a power outage
occurs, the mode must be selected again prior to use.
TIME Mode: In this mode, the timer determines and
controls test completion. The timer must be set to the
specified time. The test will then run until the timer reaches
zero and stops the machine. Revolutions are displayed on
the counter, but the counter does not control the test.
REVOLUTIONS Mode: In this mode, the counter
determines and controls test completion. The counter
must be set to the specified number of revolutions. The
test will then run until the counter reaches zero and stops
the machine. Time can be displayed on the timer, but the
timer does not control the test.
Power-On Screen: When power is applied to the unit
for the first time following a power interruption, a title
screen showing the model and version number will display
briefly, then the Power-on screen will appear. The user
selects which method the Micro-Deval will use to control
test duration. If "A" (TIME) is selected, the test will be
terminated when the preset time period expires. If "B"
(REVS) is selected, the test will be terminated when the
preset number of jar revolutions is complete. If power is
lost and reapplied, this screen will reappear.
Power-On Screen
Timer Mode Screen: This screen appears when "A" is
selected from the Power-On screen and will be displayed
continuously when controlling test duration by the time
method. The "Time" line indicates the set point in whole
minutes and will alternate the set point value with a series
of flashing vertical bars. (If the desired value is displayed,
the test may be started immediately by pressing the green
<START> button.) To change the set point, press <OK> and
the set point value will begin to flash. Adjust the set point value
using the <+/-> buttons. As the buttons are held down, the
rate of change will become faster, progressing from single
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