Labconco Pressure Controller - Manual (Page 6)

Labconco Operating Instructions 5242600, Rev. B 4/27/07, ECO E275 6 of 20
Glove Box Pressure Control – Operation Mode 1
The Pressure Control mode will allow the user to set a high pressure limit up to +5 inches water
column and a low pressure limit to -5 inches water column [+/- 12.6 mBar or +/- 1245 Pacals].
Set these high and low pressure limits with the keys adjacent to the “up” and “down” arrows on
the display. Once these limits are set, and the START key is pressed, the Pressure Controller will
automatically control the gas inlet valve, gas outlet valve, and the power to the outlet receptacle
for a vacuum pump. Pressure in the Glove Box Main Chamber will be displayed inside the glove
box icon on the display screen.
Manual control keys for “PURGE” and “FILL” (located along the bottom of the display) will
allow the corresponding valves to be controlled by the user to increase or decrease the pressure
inside the glove box. Note: These manual keys will not operate the valves when the pressure
is outside the limits of +/- 5 inches of water [+/- 12.6 mBar]. A three-position footswitch is
included with the Automatic Pressure Controller. The footswitch provides manual foot control of
the gas inlet and vacuum outlet valves. The pressure inside the glove box will be displayed inside
the glove box icon on the display screen.
An audio alarm will actuate if the pressure exceeds the maximum limits of +/- 5 inches of water.
An “alarm reset” key (identified by the musical icon) is provided to mute this alarm. The alarm
will reset automatically when the pressure returns within +/- 5 inches [+/- 12.6 mBar].
Manual
Purge
Manual
Fill
Start/Stop
Setup
Increase
Upper Limit
Decrease
Upper Limit
Mode Key
Mute/Alarm
Increase
Lower Limit
Decrease
Lower Limit