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Author: WisdomAugust

Digital Multimeter HDM3055 Series Manual

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 Author| Post time 2023-11-4 08:20:04 | Show all posts
The Display and Digit Mask softkeys behave as they do in the Number display.



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 Author| Post time 2023-11-6 08:21:16 | Show all posts
The Scale softkey specifies the horizontal scale:


l Default sets the scale to equal the measurement range.
l Manual allows you to configure the scale either as High and Low values or as a Span around a
Center value. For example, a scale that goes from a Low of -500 Ω to a High of 1000 Ω could also
be specified as a Center of 250 Ω with a Span of 1500 Ω.



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 Author| Post time 2023-11-7 08:14:47 | Show all posts
Selecting a Secondary Measurement

Press 2nd Meas to select and display a secondary measurement. For example, for the DCV
measurement function, you can select ACV, Peak, or Pre-Math as the secondary measurement
function. With ACV selected as secondary, the display shows the DCV measurement as a number
near to top of the display, DCV in the bar meter, and the ACV measurement above the bar meter:



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 Author| Post time 2023-11-8 08:18:14 | Show all posts
Trend Chart  
To select the trend chart, press [Display] followed by the Display softkey:


In the Continuous measurement mode, the trend chart shows data trends over time:



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 Author| Post time 2023-11-9 08:19:36 | Show all posts
Recent/All

The Recent/All softkey shows either all of the data in the trend chart (All) or just the most recent
data (Recent). Neither selection clears reading memory.
In All mode, the trend chart displays all readings being taken and builds from left to right. After the
display is filled, the data becomes compressed on the left side of the display as new data is added
on the right side of the display.
Scaling
The Vertical Scale softkey specifies how the current vertical scale is determined.



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 Author| Post time 2023-11-10 08:33:51 | Show all posts
Press Vertical, to change the scaling:

l Default sets the scale to equal the measurement range.
l Auto automatically adjusts the scale to appropriately fit the line currently shown on the screen.
l Manual allows you to configure the scale either as High and Low values or as a Span around a
Center value. For example, a scale from a Low of 0 V to a High of 5 V is equivalent to a Center
of 2.5 V and a Span of 5 V.



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 Author| Post time 2023-11-13 08:28:46 | Show all posts
If you have enabled limits, the (Limits) softkey also appears. This sets the vertical scale to match
the limits.



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 Author| Post time 2023-11-14 08:13:56 | Show all posts
Histogram

The histogram shows measurement data as a graphical representation of the distribution of measurement
data. Data is grouped in bins represented by vertical bars in the histogram display.


NOTE Autoranging can adversely affect the histogram display when measuring repetitive signals spanning
multiple ranges. To avoid this, select a fixed range when using the histogram display.


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 Author| Post time 2023-11-15 08:15:42 | Show all posts
Pressing the key, followed by the Display softkey allows you to select the display type:



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 Author| Post time 2023-11-16 08:10:53 | Show all posts
Binning

The Binning softkey allows you to either let the instrument control how the histogram is binned
(automatic binning), or to manually specify the binning parameters with the Bin Settings softkey.
Changing any binning parameter, or switching between automatic and manual binning, will automatically
start the histogram over with new data.



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