Software User Manual
MLX90807/MLX90808 PTC-04
Software User Manual
MLX90807/MLX90808 PTC-04
Version 1.0
Rev 1.0
Page 1 of 14
19-Aug-10
Software User Manual
MLX90807/MLX90808 PTC-04
Table of Contents
1 OVERVIEW ......................................................................................................................................................3
1.1 C
ONNECTION
...............................................................................................................................................3
1.2 R
ELATED
P
RODUCTS
....................................................................................................................................3
1.3 R
ELATED
D
OCUMENTS
.................................................................................................................................3
1.4 S
OFTWARE
I
NSTALLATION
.............................................................................................................................3
2 LAUNCHING THE SOFTWARE ......................................................................................................................3
3 START UP MLX90807/MLX90808 PTC-04.....................................................................................................4
3.1 T
HE SOLVER TAB
..........................................................................................................................................5
3.2 T
HE SOFTWARE USER
’
S INPUTS
.....................................................................................................................5
3.3 T
HE CALIBRATION STEP BY STEP
...................................................................................................................6
3.4 T
HE RESULTS
...............................................................................................................................................6
3.5 A
DDITIONAL FEATURES
.................................................................................................................................8
3.6 T
HE
R
OM PARAMETERS
T
AB
.........................................................................................................................9
3.7 T
HE
A
DVANCED
T
AB
...................................................................................................................................10
3.8 M
ULTI
S
OLVER
...........................................................................................................................................11
3.9 L
OGGING
...................................................................................................................................................13
3.10 D
EBUG
....................................................................................................................................................13
Rev 1.0
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Software User Manual
MLX90807/MLX90808 PTC-04
1 Overview
The PTC-04 solution for MLX90807/MLX90808 has the main goal to provide a very general and user friendly
software that can be used as an example for mass production.
1.1 Connection
There are two possibilities for connecting the PTC-04 to the computer – through RS-232 or USB cable. In the
first case no extra device driver installation is necessary. In the second case, first time when the PTC-04 is
connected with the computer, hardware setup must be performed.
1.2 Related Products
•
•
MLX90807
MLX90808
1.3 Related Documents
•
•
•
90807 90808 Software Description PTC-04
Pressure Sensors Assembly Guidelines
Advanced Calibration Options 90807 90808
1.4 Software Installation
It is important that the current user has administrative rights to be able to install the software. When running
the installation of the software the following will be installed on the user’s computer:
• MPT application (MPTApp.exe) – Melexis Programmable Toolbox application is the main work environment
for loading specific user interface modules.
• MLX90807 user interface (UI_090807AAMLX.exe) – MLX90807/90808 PTC-04 specific user interface,
which can be executed only by MPT Application.
• MLX90807 PSF (PSF090807AAMLX.exe) – Product Specific Functions library containing several ActiveX
objects facilitating the communication with the device.
2 Launching the software
There are two ways to launch the software:
1. Run Melexis Programming Toolbox application (MPT) -> On Workspace panel open UI modules branch ->
Double-click on MLX90807 PTC04 to open the user interface. The software is now ready for work.
2. The same can be automatically done by running the specific item on the Start menu: Start->Programs-
>Melexis->Melexis Programmable Toolbox->MLX90807PTC04 UI.
Rev 1.0
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19-Aug-10
Software User Manual
MLX90807/MLX90808 PTC-04
3 Start up MLX90807/MLX90808 PTC-04
When the MLX90807 software is launched successfully the following window will appear:
Rev 1.0
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19-Aug-10
Software User Manual
MLX90807/MLX90808 PTC-04
3.1 The solver tab
The main goal of the solver is to allow the software user to quickly evaluate the MLX90807 and MLX90808
without needing an in depth knowledge of the chip. The solver user interface can be divided into 4 parts:
-
-
-
-
The software user’s inputs.
The calibration step by step
The results
Additional features.
3.2 The software user’s inputs
The software calibration inputs are shown in the picture bellow. The calibration steps to follow will depend on
the given inputs.
The first calibration input is the number of temperature points. Depending on the required accuracy and on
the temperature range of the application, one, two or three temperature points can be chosen. Often the
target accuracy can be reached by using two calibration temperatures. The software doesn’t need to know
the selected temperature values. Melexis advices to select the first temperature at ambient, the second at
85° and the third at -15° It is mandatory that the second temperature is higher then the first one and that
C
C.
the third temperature is lower then the first one.
The second calibration input is the desired output level for the low and high calibration pressures used. These
desired output levels are also expressed as a percentage of the supply voltage to take into account the
ratiometricity of the chip. Melexis advices to use the pressure corresponding to an output of 10% of Vdd as
the low pressure and an output of 90% as a high pressure during calibration.
The third input for the solver is the desired tolerance on the obtained output characteristic curve. When the
solver is not able to adjust the curve within the specified tolerance, its stops and gives a warning message.
During a first evaluation phase Melexis advices to use a relaxed tolerance of about 5% to collect as much
information as possible from the solver and only use this feature in a later phase of the development.
Rev 1.0
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19-Aug-10
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