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Gilson Company, Inc.
Warning:
Do not operate without all guards and covers
in place.
Warning:
Keep all parts of your body away from moving
parts of the machine while it is operating.
Warning:
Do not wear loose clothing which might be
caught in moving parts of the machine.
Warning:
Wear safety glasses, protective clothing, and
hearing protection. Wear approved NIOSH/
MSHA respirator as required by the sample
to prevent your inhaling any dust which may
be considered hazardous.
2.2 Timer set-Up & Operation
This unit is equipped with an easy-to-operate Gilson interval
count-down timer. The timer has a large 0.6in LED display
and will operate in four different modes. It is powered by line
voltage and will work on power supplies from 100—265 VAC,
50/60Hz, with up to 20 amps Inductive or Resistive current.
NOTe: The main device controlled by the timer may
be restricted to operating on a more limited electrical
supply range. Check the device carefully to insure
compatibility with your electrical supply.
Current timer mode is indicated by the four red LED's on
the timer face:
• A = MMSS
(99min:59sec x 1 second)
• B = HHMM
(99hr:59min x 1 minute)
• C = SSSS
(9999sec x 1 second)
• D = MMMM (9999min x 1 minute)
(H is for hours, M for minutes, and S for seconds.) To adjust
the timer mode, press and hold both <UP> and <DOWN> keys
at the same time until the display shows the mode. Once the
mode letters are displayed, press <UP> or <DOWN> to change
modes. Press <START/STOP> to accept new mode.
To set the run time, press either <UP> or <DOWN>. The
first digit on the right hand side will flash in half-second
intervals. Press either arrow key to adjust to the desired
value. To enter the displayed digit and move to the next,
press <START/STOP>. Once the last digit on the left is
entered, the timer is ready to start.
Press <START/STOP> to initiate the current run program.
Once running, pressing <START/STOP> again will pause
the timer with the current amount of time remaining on screen.
When allowed to time-out, the timer beeps and displays
DONE. Press any key to continue. Setting and Mode values
are saved automatically and restored on power-up.
2.3 Procedure
Read and be sure you understand all safety, operating,
and timer instructions, as well as specifications and pro-
cedures for your test.
1. Check to see that the Porta-Screen
2. Select and load the appropriate trays.
Fill all the slots: 5 trays and pan for the PS-3
The Porta-Screen
unless fully loaded with trays. If your test requires
fewer trays than the capacity of the Porta-Screen
you may insert the required trays in the upper slots
with the pan immediately below. Then fill the lower
slots with extra trays.
3. Clamp the trays by rotating the clamp levers so that
they point down.
4. Pour your sample into the top tray. Refer to the sample
capacity information and be sure not to overload the
Porta-Screen
.
®
5. Connect the three-pronged plug into a properly-wired,
grounded receptacle with appropriate electrical current.
6. Set and activate the timer.
7. When the machine stops, unclamp the trays by rotat-
ing the clamp levers so they point up. Remove and
empty the trays, following the directions in your test
specifications.
8. When you have finished your test, unplug the machine.
Do not reconnect power until you are ready to use
the machine again.
9. Store clean, empty trays in the unit, leaving them
unclamped.
10. Re-level the machine before the next use.
Page 5
Gilson Porta-Screen
: PS-3 & PS-4
®
is level.
®
7 trays and pan for the PS-4
will not clamp or operate properly
®
,
®
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