Labconco Pressure Controller - Manual (Page 12)

Labconco Operating Instructions 5242600, Rev. B 4/27/07, ECO E275 12 of 20
This display screen confirms that the doors are open and the sensors are ready for auto-zeroing.
First, select the Main Glove Box Chamber key (Box) and wait for complete calibration to zero
pressure. Next, select the Transfer Chamber key (CH) and wait for complete calibration to zero
pressure. Once the key adjacent to “Save” is pressed, the new sensor offset valves for both
chambers are stored, and this pressure becomes the zero point for both chambers. Select the
back key two times when calibration is complete to return to the three main modes of operation.
Pressure Control Foot Switch (Labconco #5243600)
The three position (increase gas/fill, off, purge/decrease gas) foot switch should be plugged into
the back panel of the Labconco Pressure Controller. The Foot Switch has the same effect as
pressing the Purge and Fill keys on the display panel. The action of the Foot Switch depends on
what mode of operation is shown on the display. If the transfer chamber screen is shown on the
display, the Foot Switch will control the Transfer Chamber gas in and gas out valves. If the
display shows the Glove Box Pressure Control or the Glove Box Purge/Fill, the Foot Switch will
control the Glove Box Main Chamber gas in and gas out valves. The foot switch will not work
when the pressure/vacuum inside has exceeded the user preset limits shown on the display.
Main Glove
Box Chamber
Select Key
Back to
Previous
Screen
Save
Zero
Point
Transfer
Chamber
Select Key