Operating Instructions – Labmaster
©
130 and MB20G Systems
Instruction Manual
Chapter 3: Principles of Operation
© MBraun, Inc. Edition 1/2007 Page 3-1
CHAPTER 3: PRINCIPLES OF OPERATION
3.1 Description of the System
M.Braun glovebox systems, which are operated using a closed loop circulation method, provide
the user with a non-reactive atmosphere of <1ppm moisture and oxygen content. The system
has three major functions: Purging, Circulation and Regeneration. Each of these processes is
explained in detail in the following sections. For information for operating the system functions,
refer to Chapter 9 of this manual.
3.2 Pressure Control System
General Information
The system is equipped with a PLC operated pressure control system which starts automatically
when the system is activated. Upper and lower working pressure parameters, which are set by
the user, provide a comfortable range for the user to work in. Depending upon the application,
the system can be operated in the positive or negative pressure state.
Definition of Terms
Box Pressure Current pressure within the glovebox.
Working Range
The range within the working setpoints at which the box
pressure fluctuates.
Upper Working Setpoint
Lower Working Setpoint
Adjustable setpoint parameters used to establish the working
range.
Limit Setpoint
The fixed value range between which the working parameters
can be set. This is a factory established range which cannot be
adjusted.
To Next Page
Loading...
