Setting High-Limit Control - Barnstead International MaxQ 4000 Manual

Note
RS232 Interface Port is for output
only. Interface cables must not
exceed 9.8' (3m) in length.
Note
Shakers without optional
refrigeration system only have
high-limit control on side panel.
8. Verify the program was saved by going to
"Start" \ "Programs" \ "Accessories" \
"Communications" \ "HyperTerminal" \ "Max Q
Shaker."
9. This completes the configuration of
HyperTerminal.
10. Turn shaker off and connect computer (COM 1)
to shaker (COM PORT) with DB-9 serial printer
cable.
11. Start HyperTerminal by clicking on "Max Q
Shaker."
12. Power up shaker. Shaker will screen print
speed, time and temperature at one-minute
intervals.

Setting High-Limit Control

The high and low-limit controls are located on the right
front side panel of the shaker cabinet. The high-limit
light is located on the control panel.
1. Make appropriate power connection.
2. Turn power switch ON.
3. Rotate high-limit control fully clockwise.
4. Set chamber temperature.
5. Allow sufficient time for chamber temperature to
stabilize before setting the high-limit control.
6. Rotate high-limit control slowly counterclock-
wise until set point is reached.
• For A-Class shakers high-limit light will illumi-
nate when set point is reached. Rotate high-
limit control clockwise until status lamp goes
out. Make an additional 1/8 of a turn clockwise
beyond this point.
O
PERATION
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