Chart Output (Analog Output) - Agilent Technologies 34420A User Manual

Chapter 3 Features and Functions

Chart Output (Analog Output)

Chart Output (Analog Output)
You can use the Chart Output (Analog Output) connector on the rear
panel to run a strip chart recorder or similar instrument. The connector
provides an output voltage proportional to the measured voltage.
The output can range from –3.00 V to +3.00 V.
When chart output is disabled (Off), the output is set to 0 V.
The output impedance is 1 k .
The output voltage is related to the input signal as follows:
(reading
span
Note that reading includes the results of measurement unit
conversion, filtering, null, and any math operation performed on the
measurement.
The chart output state (including the span and null values) is stored
in non-volatile memory.
span cannot have a negative value.
The chart output has a voltage "rollover" to prevent the loss of data,
see page 100.
Examples:
See page 38 for a menu procedure to enter a number.
1) To set the chart span so that a ±1 mV input signal produces a ±1.0
Volt chart output:
(0.001
span
0.001
span =
1.00
When chart null is set to 0, the value
chart output = gain
98
chart null)
= chart output voltage
0.0)
= 1.00
= 0.001
1
span
.
reading
can be considered the gain and