User`s manual

7800 Series Hysteresisgraph System User's Manual
4-10 Operation
4.1.4 SENSING MENU (Supervisor Mode Only)
The Sensing Menu consists of B, H Coils in Paragraph 4.1.4.1, Hall Probe in Paragraph 4.1.4.2, and Write to
Coil EEPROM in Paragraph 4.1.4.3. These menu selections are only available when the Hysteresisgraph
software is operating in Supervisor Mode.
4.1.4.1 B, H Coils
The B Coil Setup window is shown below. The H Coil Setup window requires similar information.
Coil Input Terminal Choose 10 kΩ or 100 kΩ for the input resistance of the fluxmeter. For most Lake
Shore coils, this setting should be 100 kΩ. This selects the input resistor to the
integration stage of the integrator. Choosing a value of 10 kΩ instead of 100 kΩ will
increase the system gain by a factor of 10 and increase the fluxmeter sensitivity to
drift by a factor of 10. If this amount of gain is not required by your measurement, it
should not be used.
Number of Turns Enter the number of turns marked on your sensing coil.
Average Area/Turns Enter the average area of the entire coil structure (average area = A·N/turns).
Area Turns Enter the total area·turns (A·N) for your sensing coil.
Coil Resistance Enter the DC resistance of the attached sensing coil.
4.1.4.2 Hall Probe
Serial Number Enter the serial number of your Hall probe.
Date Enter the date of manufacture of your Hall probe
Nominal Size Enter the nominal size of your Hall probe.
Comment Enter any additional information concerning your Hall probe.