Dual Reference Output Filters Menu - Ametek 7280 Instruction Manual

Chapter 5, FRONT PANEL OPERATION

5.5.04 Dual reference Output Filters Menu

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The Auto-Phase1 and Auto-Phase 2 functions (see section 5.5.07) also affect the
settings of these controls.
Pressing the Previous Menu key returns control to Main Menu 1.
In dual reference mode, pressing the Output Filters key on Main Menu 1 access the
Dual Reference Output Filters Menu, shown in figure 5-41.
Figure 5-41, Dual Reference Output Filters Menu
The Dual Reference Output Filters menu has five controls affecting the instrument's
output low-pass filters. Changes to the setting of these controls can be made by using
the adjacent keys.
The controls operate as follows:-
TIME CONSTANT 1
TIME CONSTANT 2
These controls, which duplicate the Main Display controls of the same name, are
used to set the time constant of each of the output filters.
SLOPE 1
SLOPE 2
The roll-off of each of the outputs filters can be set, using this control, to either 6 dB
or 12 dB per octave.
SYNC TIME CONSTANT
This control has two settings, as follows:-
OFF
In this setting, which is the normal mode, time constants are not related to the
reference frequency period.