Just to know, DMM still in full charge after 2 months of deep sleep (minus the last week).

But the main reason for this thread is the following:
At the momment I'm using the 289 plus the 54-II for thermocouple calibration: The 298 for voltage measure and the 54-II for real surface temperature measure.

I log with a FVF the 289 and have another FVF for the 54-II. It is possible to use the same FVF for both information, instead of using 2 FVF and the merge the info? Understand that I'm doing Real Time Computer Log because of the time sample I'm using... I'm thinking in something as both readings real time sincronization.

I will add some more info just for reference:

I'm using a small protoboard with an LED display, some more components and 4 inputs for thermocouples. Each input have a variable resistor that I adjust via a small philips screwdriver using as reference the 289 reading. I'm willing to achieve percisions of 0.1V ± 2%. Since my LED display microprocessor still needs calibration, I'm using as reference the readings from the 54-II reading and then calibrate in acordable.

This solution I'm development is for Vapor Change Equipment, and I'm thinking of selling it with each thermocouple calibrated for each correspondent channel plus the display and conversion board, to save some money from comercial products that are too damm expensive.

And if the function already exists please explain to me how to do it because I'm still looking for it...

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Márcio Teixeira

I am a novice with FVF, but I would have to ask....how would the same session of FVF communicate with each COM port for each meter during real-time logging?

By trial-and-error, I have self-taught myself alot about FVF. I just realized today that you can have different data groups (I think that is correct). I wanted to make a form to import the displayed readings from a battery string measurement. In the same form, I wanted to also import the readings from the rectifiers. I will assume, you could import the data from the 289 into one data group and the data from the 54 into another. Of course, this would not be real-time, but if you started the logs together, it would be very close.

This is the only way that I can think of to get the data in one FVF. If I am incorrect, hopefully someone else will answer your question and teach me something at the same time.

EDIT: As I mentioned, I am just learning about FVF. I just stumbled onto a setting that may help you, as long as you are using FVF Designer and not FVF Basic.

Enable multiple instances of FlukeView Forms

When selected, starting FlukeView Forms from the Windows Start menu will create a new, separate instance of FlukeView Forms. This is useful if you wish to interactively log from several meters concurrently.

The maximum number of FlukeView Forms instances is 4. Each instance requires its own serial port, and a different database than those used by other instances.

This feature is not available in FlukeView Forms Basic.

Hope this gets you going in the right direction.
Tom

If I had understand that is 4 FVF instances simutaneously (4 processes in the task manager). At the momment I do the same with 2 (as explained). My objective is in the same see all the 4 readings simultaneously in only 1 FVF (for example).

Why it was easy to analize both graphs knowing that X division in VDC corresponds to the same amount in ºC. Seeing two graphs in separate programs can help, but I can not see both graph lines at the same time. Or better, I can see both at the same time (one on each FVF) but not in the same graph.

I hope that I'm making undestand...

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Márcio Teixeira

Hey Black Phoenix,

Think you're almost there.
As I understand it, you already discovered the multi instances of FVF usage.
And as discussed, each instance is logging data to separate fvf databases.

AFTER you've logged the data, you CAN combine the data back into a single database and display the data on the same graph.*

You may want to go to the designer and tweak the form's properties to support multiple meters (multiple 'data groups' or increase the number of groups, and customize the groups names) - take a look at some of the sample forms like the two meter landscape form.

For example, logging 54-II #1 in sample_54_1.fdb, and from 54_II # 2 in sample_54_2.fdb.


Bring up one of these instances of FVF and display a multi group form. Use the Edit/import data dialog, to import data from the other databases.
Select the data you want, and assign the data to an unused group.

repeat

Right click on the graph, choose Groups/traces , "any group with sample data" (or something like that) . Explore the options.

* all that said, there is a limit here - you can't display "event logging" data from your 289 on the same graph with the 54's sampled data. *

If however you did manual saving of 289 readings in conjunction with your 54-II calibration data, that 289 saved readings could be uploaded and since it is 'sampled' data, it could be displayed on the graph with the 54-II data.


Is this along the lines of what you needed?
Bob

Thank you for your reply... That in bold was the thing I was looking for: Real Time mutiple reads in the same graph... Although I can work with 2 readings, one in each FVF process. The solution were for time saving/eficienty porpouses.

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Márcio Teixeira