Download Magnetic Property Measurement System

C
H
A
P
T
E
R
7
System Operations
7.1
Introduction
This chapter contains the following information:
7.2
•
Section 7.2 explains how to set the
system temperature.
•
Section 7.6 explains how to monitor
helium transfers.
•
Section 7.3 explains how to set the
magnetic field.
•
Section 7.7 explains how to make the
MPMS enter standby mode.
•
Section 7.4 explains how to control
the atmosphere in the sample chamber.
•
Section 7.8 explains how to perform
several advanced system operations.
•
Section 7.5 explains how to tune the
SQUID.
Setting the Temperature
1.
Do one of the following: (a) select Instrumenth
Temperature or (b) click on any temperature status panel
in the status bar. The Temperature Parameters dialog
box opens. The dialog box indicates the status of the
temperature and includes temperature control commands.
2.
Specify the new temperature set point. The state of the
MPMS and the maximum system temperature limit the
maximum temperature you can specify.
3.
Specify the rate at which the MPMS attempts to ramp
to the set point. For systems without the Enhanced
Temperature Control (ETC) option, you can specify the use
of Temperature Undercool.
4.
Figure 7-1. Temperature
Select Set. The temperature immediately begins to ramp
Parameters Dialog Box
to the set point. The system monitors the changing temperature and temperature status. The Temperature Parameters
dialog box and the temperature status panels display the temperature and status.
If a sequence runs while the Temperature Parameters dialog box is open, the Status panel in the
dialog box indicates the status of any Set Temperature or Scan Temperature commands that are
executed as part of the sequence.
Quantum Design
MPMS MultiVu Application User’s Manual
7-1