ASTRO-MED Dash 4u Quick Start Manual Download Page 4

[ARM] 

 

Used to activate the data capture mode.  Works with or without the 

   chart 

paper 

running. 

 

[TRIG]

  

Manual trigger for data capture.  

 

 [SYS]

   

System key used for setting up various parameters for the Dash 4u. 
Design or modify an existing chart.  Edit text labels.  Set up data 
capture and triggering.  Save or recall a system set up (Zip disk).  
Other system functions such as real-time clock, display colors, 
defaulting settings and software upgrade. 

 

[MODE]

  Select and run any of the four available charts.  Select data logger 

(numeric), timed recording or dual speed mode.  Select captured data 
to review as well as importing and exporting data to Zip disk. 

 
 

4.  REAL-TIME RECORDING FUNCTIONS 

 
 

 

Four available chart formats:  Design grid for number of channels.  Pick to overlap some, all or none of the channels. 

 

Data logger (numeric output):  Select rate at which to print values. 

 

Timed recording:  Pick one of four charts.  Select the start and end times for recording. 

 

Dual Speed Recording:  Select two chart speeds at which to run the paper and select either the trigger or time duration 
to switch between the speeds.  The most common use is recording at the first selected chart speed, utilizing waveform 
triggering to change to the second chart speed for a predetermined amount of time.  At that point, the recorder will 
automatically switch back to the first selected chart speed, awaiting another trigger. 

 
During real-time recording, the display will show your signals.  At the same time, you can print to paper using the  

[RUN / HALT]

 key. 

 
 

5.  SETTING UP CHARTS AND GRIDS 

 
 
The Dash 4u gives you total control over chart layout.  You can set individual channel widths, channel location, grids 
ON/OFF and major/minor division sizing.  You are also able to suppress or enable waveform printing as well as vary the 
waveform trace thickness.  Further, you can overlap some or all of the channels. 
 
 

DEFAULT CHARTS 

The Dash 4u has four programmable charts.  They are defaulted at the factory 
prior to shipping.  The defaulted charts are four grids, six grids, one grid, and 
four grids with eight event markers.  You may find this a convenient place to 
start. 
At any time, you can default the charts as follows: 

[SYS] [CUSTOMIZE CHART] [DEFAULT ALL CHARTS] 

 

RUNNING A CHART 

[MODE] [RUN CHART 

X

]

 where 

X

 = 1 or 2 or 3 or 4. 

 

Immediately, you will see the waveforms scrolling across the color display as 
well as the chart paper begins to run.  Use the 

[RUN / HALT]

 key to stop the 

paper. 

 

Summary of Contents for Dash 4u

Page 1: ...PANEL CONTROLS 4 REAL TIME RECORDING FUNCTIONS 5 SETTING UP CHARTS AND GRIDS 6 AMPLIFIER SETTINGS 7 DATA CAPTURE 8 DATA REVIEW 9 SAMPLE EXERCISES Astro Med Inc Astro Med Industrial Park 600 East Green...

Page 2: ...not supplied with the Dash 4u There are two physical input sections for each channel You must only use one physical connection at a time For the differential DC Bridge and temperature amplifiers use t...

Page 3: ...paper speed data logger numeric speed select internal or external motor source the speed of the display normal or trend and to adjust the chart speed 2 AMP KEYS Six keys one each for the four signal...

Page 4: ...use is recording at the first selected chart speed utilizing waveform triggering to change to the second chart speed for a predetermined amount of time At that point the recorder will automatically sw...

Page 5: ...the right side of the front panel four keys for the four signal inputs and two keys for the two channels derived from the signal inputs When one of the four signal input channels is selected several...

Page 6: ...e placed SETUP DATA CAPTURE SYS SETUP DATA CAPTURE There are six parameters for setting up data capture SET SAMPLE RATE Use the encoder wheel to select how many samples per second you will take SET RE...

Page 7: ...ure record is complete several things can be done with the data It can be reviewed on the color display played back to the chart paper copied to the Zip disk or sent to a computer by ethernet SCREEN P...

Page 8: ...ed keys on front panel of Dash 4u Stop the chart paper RUN HALT Set Channel 1 to be 0 11 Volts FS AMP 1 ADVANCED CHANGE AMP TYPE The Dash 4u has five amplifier types SET TO SINGLE ENDED Select the sin...

Page 9: ...Turn encoder wheel until trigger window is 10 Set capture for one record SET OPERATION You can capture one record or re arm for more captures Turn encoder wheel for single capture Be sure auto trigger...

Page 10: ...or A is positioned just to the left of the trigger point dotted yellow line on the display t EXPAND ABOUT A The expansion is around where the cursor A is set Print the screen OUTPUT Use encoder wheel...

Page 11: ...HART 4 Set speed to 5 mm sec 5 SEC Common speeds have dedicated keys on front panel of Dash 4u Stop the chart paper RUN HALT Set Channel 1 to be 4 Volts FS AMP 1 ADVANCED CHANGE AMP TYPE The Dash 4u h...

Page 12: ...IGGER Win Placing the trigger at any point other than the start of the capture window will allow for pre trigger data to be captured Turn encoder wheel until trigger window is 20 Set capture for one r...

Page 13: ...n the display the trigger point dotted line CURSOR SELECT B Turn encoder wheel so cursor B is positioned just to the right of the trigger point dotted yellow line on the display Expand view around tri...

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