Dac Menu - Ametek 7270 Instruction Manual

Chapter 5, FRONT PANEL OPERATION

5.3.32 DAC Menu

5-50
BURST ADC1
The burst modes are for use in conjunction with the curve buffer operating in the
Fast mode. When Burst ADC1 is selected, a burst of conversions at the rates set
by the curve buffer TIME PER POINT control is performed on ADC1 only. The
results are stored to the curve buffer, with the number of conversions being set
by the curve length control on the Curve Buffer menu - see section 5.3.24.
BURST ADC1&2
When Burst ADC1&2 is selected, a burst of conversions at the rates set by the
curve buffer TIME PER POINT control is performed on both ADC1 and ADC2.
The results are stored to the curve buffer, with the number of conversions being
set by the curve length control on the Curve Buffer menu - see section 5.3.24.
NOTE: When either of the burst acquisition modes is selected, the instrument
automatically changes the curve buffer acquisition mode to Fast.
TIME PER POINT
This indicator shows the effective ADC sampling rate.
Pressing the Curve buffer menu item access the Curve Buffer Menu, while pressing
the Previous Menu key returns control to Main Menu 2.
When the Main Menu 2 is displayed, pressing a key adjacent to the DAC Menu item
accesses the DAC Menu, shown in figure 5-40.
The DAC menu is used to configure the signals that will appear on the four DAC
connectors on the rear panel of the instrument. On the left hand side of the panel four
controls are used to set the DC voltages of the auxiliary DAC outputs, while on the
right hand side four controls are used to select the signal that will actually be applied
to the DAC 1 to DAC 4 connectors. The controls operate as follows:
AUX DAC 1, AUX DAC 2, AUX DAC 3, and AUX DAC 4
These four controls set the voltages of the corresponding auxiliary DAC to any value
between -10.000 V and +10.000 V in 1 mV increments. Adjustment is faster using
the Keypad or Active Cursor controls - see section 4.1.04. Note that these voltages
will only appear at the connectors if the corresponding DAC SETUP on the right
Figure 5-40, DAC Menu