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54 Digitizers Command Reference Chapter 3
CALibration
The CALibration subsystem allows you to calibrate the digitizer.
Subsystem Syntax CALibration
:DAC:VOLTage <voltage> | MIN | MAX
:DAC:VOLTage? MIN | MAX
:DATA?
:GAIN[<channel>] [<readings> | DEF][,<rate> | DEF][,ON | 1 | OFF | 0]
:SOURce INTernal | EXTernal
:SOURce?
:STATe ON | 1 | OFF | 0
:STATe?
:STORe
:VALue <voltage>]
:VALue?
:ZERO[<channel>] [<readings>][,<rate>]
:ZERO[<channel>]:ALL? [<readings>][,<rate>]
CALibration:DAC:VOLTage
CALibration:DAC:VOLTage <voltage> | MIN | MAX is only active if the
CALibration:SOURce is set to INTernal. The voltage specified is output by
the internal DAC to the calibration bus (E1564A 4-Channel Digitizer ONLY).
You can measure this voltage on the top two pins of the External Trigger
Input/Calibration Bus Output Connector (CAL-H and CAL-L). This voltage
is used for calibrating the digitizer’s gain as the CAL:VALue.
Parameters
Comments Maximum Output Levels: Maximum output levels are limited to the levels in
the following table. These are the E1564A DAC voltages recommended for
calibrating each range. The values are approximately 98% of full scale.
Name Type Range of Values Default Value
voltage numeric ±0.061256409 - ±15.00 volts
Voltage
Range
Max DC Voltage
(absolute value)
Voltage
Range
Max DC Voltage
(absolute value)
0.0625 0.061256409 16.0000 15.00
0.2500 0.245025635 64.0000 not used
1.0000 0.980102539 256.0000 not used
4.0000 3.920410156