Maxim Integrated │ 6

www.maximintegrated.com

USB2PMB2# Adapter Board

Evaluates: Munich (USB2PMB2#)

5)

Real Time Scope: The scope on the bottom left side

of the GUI represents the measured data with number

of samples in X-axis and Y-axis is selected from the

available plot configurations options. Figure 9 depicts

the options that determine the Y-axis in the scope.

a)

Scope Options: On the top right corner of the

scope, plot settings options are available for the

user to play/pause, zoom in/out, pan, print, save,

and waveform settings.

b)

Plot Configuration Options (Figure 9a):

i)

ADC Count: This option plots the ADC count

itself on the Y-axis with the number of samples

on the X-axis.

ii)

Voltage: This option plots the converted volt-

age value.

iii)

Current: Plots the current measured across

the 200Ω shunt resistor present in Campbell.

iv)

4-20ma to Temp: Plots the temperature mea-

sured from IFM TA3231 Temp-Sensor. This

sensor sinks/ sources current proportional to

the temperature measured. The shunt current

and the temperature measured would be indi-

cated the bottom of the GUI too.

v)

FFT: This option plots the FFT measurement on

the Y-axis vs. frequency on the X-axis.

vi)

Histogram: This option allows user to view the

resultant output in Histogram (Figure 10). The

X-axis is ADC code and the Y-axis is the number

occurrence.

c)

History: This option allows the user to view the

history data by choosing the history length for view-

ing the data.

d)

Average: Drop-down box menu to choose to aver-

age of the discrete values sampled. For instance,

if

16 is selected, it takes the first 16 samples of the

sample-shot the user takes, then averages them

and shows the number in the text box below. If his-

tory is selected as well, it adds this number as a

datapoint to the history. If

all is selected, it uses all

the samples taken, as selected in

Sample Count to

build the average.

Figure 9. Real Time Scope GUI

Figure 9