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Gilson Company, Inc.
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 electri-
cal 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 procedures
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
7 trays and pan for the PS-4
3.
4.
5.
6.
7.
8.
9.
10. Re-level the machine before the next use.
is level.
®
Page 5
The Porta-Screen
will not clamp or operate properly
®
unless fully loaded with trays. If your test requires fewer
trays than the capacity of the Porta-Screen
insert the required trays in the upper slots with the pan
immediately below. Then fill the lower slots with extra
trays.
Clamp the trays by rotating the clamp levers so that they
point down.
Pour your sample into the top tray. Refer to the sample
capacity information and be sure not to overload the
Porta-Screen
.
®
Connect the three-pronged plug into a properly-wired,
grounded receptacle with appropriate electrical current.
Set and activate the timer.
When the machine stops, unclamp the trays by rotating
the clamp levers so they point up. Remove and empty
the trays, following the directions in your test specifica-
tions.
When you have finished your test, unplug the machine.
Do not reconnect power until you are ready to use the
machine again.
Store clean, empty trays in the unit, leaving them un-
clamped.
Gilson Porta-Screen
®
: PS-3 & PS-4
, you may
®
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