Operating Instructions – Labmaster
©
130 and MB20G Systems
Instruction Manual
Chapter 8: Commissioning the System
© MBraun, Inc. Edition 1/2007 Page 8-5
Use the arrows listed under Upper Working Limit
and Lower Working Limit to increase or decrease
the box atmosphere pressure setpoint in one tenth
decimal intervals.
or
Touch the number field next to the corresponding
parameter to display the alphanumeric keypad. Use
the keypad to adjust the parameters in the same
manner as before.
Recommended Setpoints
• Upper Working Limit: 12.0mbar
• Lower Working Limit: 9.0mbar
Touch the End button.
Reverse Purge Method (no manual purge valve or quick purge function present)
Open the inner antechamber door.
Very slowly turn the outer antechamber door handle
in a counterclockwise motion until the glovebox
pressure drops to a level between 1.0mbar and
8.0mbar and the VG valve stays open* providing a
constant flow of gas into and out of the box.
*When the valve stops clicking it is open.
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