• The construction of the digital dial is very small. It has a pleasant front view.

• It is a Retrofit. One can just replace an analog, dial without making any major changes on to the machine.

• The Rockwell and Rockwell superficial scales can be read directly from the dial by finger touch buttons.

• It is equipped with RS 232C interface.

• The data can be transferred on to the computer disc. The dial has programming, such that we can generate a quality control report. We can take a print of the data sheet. We can generate a graph from the data captured from the dial.

It is necessary to enter the technical data like    

Scale
Weight
Indentor
Date (which is default character.)

 If the digits on the dial are displayed on the computer screen, then it is ok.
 If “Device not connected…” massage is displayed, then connect the digital dial with the computer.

How to enter the hardness reading as a data

Take the hardness measurement and see that the correct final reading is displayed on the screen, then

Click

The reading will be seen in Reading table
If you take more then one measurement then average of all the measurements for one specimen will be worked out.

New project:

Click  or select “New project” from utility on menu bar.

This facility is to open a new project in which we can keep a record of hardness measurement.

Open project

Click  or select “open project” from utility on menu bar.

This facility is to open a project which is listed in as new project in which we can keep a record of hardness measurement in particular project. The name of the project opened will be displayed on the top of screen.

Close project :

Click  or select “close project” from utility on menu bar.

This facility is to close a project which was opened earlier.

Add to project :

This facility is used to add the data-hardness measurement reading for a particular job or specimen.

Thus the data will be stored for a particular specimen or job in the project selected/opened.

q.c.report :

This facility is to generate the q.c report for a particular data, stored in particular project.
The measurement of hardness for a batch quantity can be evaluated if we specify the range lower limit and upper limit, then the total reading for a particular scale shall be short listed  as below limit-within limit and above limit.

To see this report pl. follows this way

Click  or select Q.C. report from utility on menu bar.

Select a project name
Enter the range
Select indentor
Select weight
Click evaluates- on selection of this button –print button will be highlighted.
Select print
The quality control report will be displayed.

Now we can take a print of it
We can see complete report for a particular project for all the measurement 
We can see complete report for a particular project for a particular date.
We can save the data to any place over and above this programme and send it to a mail recipient.
We can see the analysis as graphical presentation.

To view the print data :

For respective date, Double Click on the date on print quality report page.

Salient feature of THE DIGITAL DIAL.

1. The construction of the digital dial is very small. It has a pleasant front view.
2. It is a Retrofit. One can just replace an analog, dial without making any major changes on to the machine.
3. The Rockwell and Rockwell superficial scales can be read directly from the dial by finger touch buttons.
4. It is equipped with RS 232C interface. 
5. The data can be transferred on to the computer disc. The dial has programming, such that we can generate a quality control report. We can take a print of the data sheet. We can generate a graph from the data captured on to the computer.

INSTRUCTIONS FOR INSTALLATION OF DIGITAL DIAL.

• Set the top cover on to the hardness testing machine.
• Plug in the data cable with the computer
• Plug in the two pin into 240 volt ac supply
• Insert cd in cd drive.
• run set up
• While installation select only “ignore” or “no to all” which ever the case may be.
• Find DHT-DRO from the programme list (it may be the at the last)
• Run DHT- DRO programme.
• On the dial d0000 will be displayed.
• Selection of Rockwell scale

1. If “C” is selected then the reading will be in Rockwell scale in following manner.
   
   

   Indentor	Load kgf	Hardness scale
   Diamond	60	A
   Diamond	150	C
   Diamond	100	D

   
   
   
2. if “B” is selected then the reading will be in Rockwell  scale in following manner.
   
   

   Indentor	Load kgf	Hardness scale
   Dia 1/16” ball	100	B
   Dia 1/8” ball	100	E
   Dia 1/16” ball	60	F
   Dia 1/16” ball	150	G
   Dia 1/8” ball	60	H
   Dia 1/8” ball	150	K
   Dia ¼’ ball	60	L
   Dia ¼” ball	100	M
   Dia ¼” ball	150	P
   Dia ½” ball	60	R
   Dia ½” ball	100	S
   Dia ½” ball	150	V

   
   
   
   
3. If “F” is selected then the reading will be in Rockwel superficial scale in following manner.
   
   

Indentor	Load kgf	Hardness scale
Diamond	15	HR15N
Diamond	30	HR30N
Diamond	45	HR45N
Dia 1/16” ball	15	HR15T
Dia 1/16” ball	30	HR30T
Dia 1/16” ball	45	HR45T

• On to the computer screen pl. enter necessary technical data required for record purpose- like scale, indentor, weight etc.
• Click connect to get connected with the computer.
• Mount the lvdt probe replacing the analog dial  allow to touch the tip of the probe to the lever surface to see the reading on the dial  0000+0010
•  Take the reading- you can take “N” number of the reading for same specimen and the average value automatically will be worked out.
• Select add button (symbol with pen held in hand), the reading shall be recorded on the computer hard disc.      
• You can record the data in   project format giving name to a particular project. From utility you can take see the recorded data, can take out a print, can generate the chart, as analyse the q.c. report. And much more.

It is a graphical representation of the SAMPLE v/s HARDNESS value. It shows a common chart for specimen and hardness value. It will not show for a particular date