Mistral 260: User Manual

MISTRAL 260
Forced Air Convection Oven
USER MANUAL
Version 2.03
MISTRAL 260 user manual
TABLE OF CONTENTS
1. Preface.................................................................................................................................... 2
2. Setting up................................................................................................................................ 3
3. Working with the TFT touch screen ...................................................................................... 4
3.1 Starting the program......................................................................................................... 4
3.2 Creating a program........................................................................................................... 5
3.3 Selecting a recipe ............................................................................................................. 6
3.4 Creating and changing the recipe name ........................................................................... 7
3.5 Setting date and time ........................................................................................................ 9
3.6 Using the Profiler menu ................................................................................................. 11
3.6.1 Setting the parameters............................................................................................. 11
3.6.2 Print profile data..................................................................................................... 13
3.6.3 Print profile trend.................................................................................................... 13
3.6.4 View profiling trend ................................................................................................ 14
3.8 Temperature progress for each zone .............................................................................. 15
3.8.1 Show trend............................................................................................................... 15
3.8.2 Print trend ............................................................................................................... 15
3.9 Dump memory................................................................................................................ 16
3.10 Showing the Dealer information .................................................................................. 17
3.11 Toggle screen colour .................................................................................................... 18
3.12 The service menu ......................................................................................................... 18
4. Specifications ....................................................................................................................... 19
5. List of spare parts ................................................................................................................. 20
6. Appendix .............................................................................................................................. 21
© Technoprint 2007 Version 2.03 Page 1

1. Preface
Congratulations! You have purchased a machine of high quality made with dedication to meet
the highest standards possible. To ensure proper operation we strongly advise you to read this
manual first.
This manual is designed to help you get the most out of the Forced Air Convection Oven
program in the shortest possible time. It is written for both the new and experienced user in
mind.
How this manual is organized

The first section of the manual explains the unpacking and installation of the oven. Included is
a description of the principles and specifications of the oven.
The main section of the manual is built around questions a user might have concerning the
touch screen display. The software is designed to achieve the most user friendly control of the
oven simply by using your fingertip.
The figures
The figures in this manual were captured with the intention of providing the clearest possible
tutorial for the program. Default screen positions and sizes were used in most cases.
Because the oven program can be configured in many different ways, do not be concerned if
you detect minor differences between the figures in this manual and what you see on your
own display.

2. Setting up
Unpacking the oven:

Carefully unpack the oven and save the original package in case you need to ship the unit.
Ensure that1 thermocouple wire is enclosed
Before starting the oven:

Operate the oven in a well ventilated room only.
Keep people, who do not operate the unit, away from the oven.
Power source:
208/240 VAC, 1-phase, 16A 50/60Hz.
Make sure that the oven is connected to a well earthed outlet
CAUTION! Always disconnect the main plug of the unit from the outlet before servicing
the machine.
Installation and/or servicing should only be done by a qualified electrical engineer.
Exhaust:
To connect the exhaust: move the exhaust pipe over the stud at the rear end of the oven. From
there you can exhaust directly to the outside as long as the distance is less the 3 meter.
When the distance is more then 3 meter, an additional exhaust ventilation unit is required.
Note that when using an added ventilation unit air flow regulation may be required since
excessive air exhaust can cause temperature drop in the oven.

3. Working with the TFT touch screen
3.1 Starting the program
After the machine is started up with the main

switch, the display will start automatically and
you will see a screen that similar to the one
shown on the left.
Controlling the unit throughout the complete

tutorial can be done by tapping on the function
buttons on the screen.
Tap anywhere on the screen and a new screen

will appear.
This is called the operating menu. Here you can

find all information about the temperatures for
each zone and conveyor belt speed.
In this menu screen you are allowed to set any
temperature between 0 and 300°C for each zone
with increments of 0.1°C and any conveyor
speed between 15 and 60cm/min with
increments of 1cm.
In the upper part of the screen you will see the
actual temperature for each zone PV (°C) and
the set temperature for each zone SV (°C). The default value is 0.0 °C for each zone.
In the middle of the screen you will see the Product temp. This is the actual temperature
measured by the probe of the thermocouple when it is connected to the outlet. If no
thermocouple is connected a message Not connected is shown.
Following that the current recipe is shown. Up to 8 named recipes can be stored in the
program. The default value is 1 <empty>.
Below the Cur. recipe you will find the Belt speed showing the actual speed of the conveyor.
The default value of the speed is 15 cm/min.
After powering down the machine the control will always save all last settings entered.

3.2 Creating a program
Creating a program can be done in the

operating menu.
Tap within the square with the temperature
setting for the zone you want to change. A soft
keypad as shown on the left will appear on the
screen. Enter the desired value within the range
indicated on the top left of the soft keypad.
All settings entered with the soft keypad will

be remembered after powering down the
CLR machine.
Setting the conveyor speed can be done as

follows:
Tap within the square with the conveyor speed
setting. A soft keypad as shown on the left will
appear on the screen. Entering a value for the
conveyor speed is done in the same way as
entering a value for the temperature.
Settings entered both ways will always be
saved after powering down the machine.
After all settings are entered the screen will

show the desired settings as shown for
example in the screen on the left. To activate the program tap on the button once; the
status will show “RUN” next to the button.
To stop the program rap on the button once again; the status will show “STOP” next to
the button.

3.3 Selecting a recipe
Up to 8 recipes can be stored for your

convenience.
Each recipe can hold a program, as created for
example in chapter 3.2.
After creating your program the screen will look
similar the one on the left (with possible other
entered values).
The first recipe you create is stored under recipe
number 1 (default). By calling up another recipe
number you can create a new program which
will automatically be stored under that number.
To change to another recipe number:
Tap on the button, a screen looking like

the one on the left will appear. You are now in
the recipe menu.
To select the recipe number you want to
activate tap within the square next to “SELECT
YOUR RECIPE:”
A soft keypad as shown in the screen on the

right will appear. Here you can enter the desired
recipe number within the range indicated on the
top left of the soft keypad.
All settings entered with the soft keypad will be

remembered after powering down the machine.
To go back to the operating menu after you
have called up a new recipe number tap on the
button.
From the operating menu you can create a new program under the set recipe as explained in
chapter 3.2

3.4 Creating and changing the recipe name
To create a new recipe name or to change an

existing recipe name tap on the button in
the operating menu.
You should see a screen as shown on the left.

Tap on the button to access the input
fields for all 8 recipes.
A screen as shown on the left will appear.

Tap in the desired recipe field box that you wish
to name or rename.

A soft keypad will appear so that a 16 character

name can be entered.
As an example under recipe number 1 is the

name “TECHNOPRINT” stored. This name
will appear in the operating menu when recipe
number 1 is called up(see chapter 3.3).
All settings entered with the soft keypad will be
saved after powering down the machine.

3.5 Setting date and time
To alter date and/or time go to the operator

menu shown to the left.
The operator menu can be called up by tapping
on the or button if shown in your
current screen.
Tap on the button and the main menu

screen as shown to the left will appear.
Tap on the button to jump to the setting

screen to alter or set date and/or time.
Tap on each set of numbers(default is 00)below
the date or time indication.

With the soft keypad appearing in the screen

any number between 1 and 99 can be entered.
Note that any number exceeding the maximum
allowed value for the specific field entered will
not be stored.

3.6 Using the Profiler menu

3.6.1 Setting the parameters
The profiling menu can be used to store, print or

view important data registered by the thermo
coupler(s).
Before this can be done some variable must be
entered in the profiling menu.
First go to the operator menu shown to the left.
The operator menu can be called up by tapping
on the and/or button if shown in
your current screen.
From here there profiler menu can be called up

by tapping on the button in the main
menu.
From this menu several sub menus can be
accesed. For that purpose this screen will be
indicated as “Figure 1 “ for further use in this
manual, when referred to this screen.
Figure 1
From this menu all options in the profiling

software can be accessed. For that purpose this
screen will be indicated as “Figure 2 “ for
further use in this manual, when referred to this
screen.
To enter the variables in the profiling software
tap on the button
Figure 2

In this menu 3 parameters can be set.
The first parameter is the “Peak temperature”.

This is the maximum that is allowed on the
PCB.
The second parameter is the “Critical

component temperature”. This is basically the
reflow temperature of the PCB which usually is
determined by the temperature data of the most
critical component placed on the PCB.
The third parameter is the time that the PCB is

in or above reflow temperature.
Either of these parameters can be entered by

tapping on digits next to the variable.
A soft keypad will appear and a value within
the range indicated in the top left of the soft
keypad can be entered.
After the data is set for the parameters go back

to the operator menu by tapping on the
button and subsequently the button.
In the operator menu tap on the button to

start the machine. The status indicator will
display “Running” as shown in the screen to the
left. When the machine has reached the desired
temperature one can start a test run to collect
data for printing or external storage. This is
done by returning to the main menu.
Tap on the button and subsequently on
the button to go to the profiling

menu(figure2 on page 11).
Attach the supplied thermo coupler to the connector located on the left side of the screen(see
chapter 5 appendix)

Now a profile can be made and stored for later

use or referring purposes. With the thermo
coupler attached to the PCB and the desired
parameters entered, a test run can be made
while the PCB is going through the process
chambers.
Tap on the button to start collecting data.

The Test Status should display “Running”.
Tap on the button to stop the test run.
3.6.2 Print profile data
From the Profile menu(see figure 2 on page 11)

the data captured as described in chapter 3.6.1
can be printed out to a printer connected to the
USB connector located on the left side of the
screen(see 5 appendix on page 21).
Tap on the button to start the printing

process.
If no printer is connected to the USB port a
print layout will be show on the screen for a
short period of time.
3.6.3 Print profile trend
From the Profile menu(see figure 2 on page 11)

the profile trend captured as described in
chapter 3.6.1 can be printed out to a printer
connected to the USB connector located on the
left side of the screen(see appendix on page
21).
Tap on the button to start the printing
process.
If no printer is connected to the USB port a
print layout will be show on the screen for a
short period of time.
By tapping on the button in the main menu(see figure 1 on page 11) all data stored will
be erased.

3.6.4 View profiling trend
The profiling trend can be viewed by tapping

on the button in the Profiling menu
(figure 2 on page 11). In this screen a curve of

the temperature measured by the thermo
coupler will be displayed during the test run.

3.8 Temperature progress for each zone

3.8.1 Show trend
Tap on the button in the operating menu
or Tap on button in the main menu
(figure 1 on page 11)to see a temperature curve

for each zone and thermo coupler(if connected)
on a time base.
A screen like this will appear with graphs

steadily changing for each temperature zone.
When a thermocouple is connected a dotted
line will appear indicating the probe’s
temperature.
Tap anywhere in the screen to go back to the
operating menu.
Tap on in the main menu to clear the
screen.
3.8.2 Print trend
The temperature curve for each zone can be

printed to a USB compatible printer when
left side of the screen(see appendix on page
21).
The Print trend function can be accessed from
the Main menu(figure 1 on page 11) by tapping
on the button.
Follow the instructions on the screen to print

out the graphics.

3.9 Dump memory
Collected data from the profiler menu can be

“dumped” to a external storage device
left side of the screen(see appendix on page 21).
To enter this option from the Main menu(figure
1 on page 11) tap on the button to open
the screen on the left.
Connect a USB compatible storage device to the
USB connector located on the left side of the
screen(see appendix on page 21).
In the screen a message indicating “Connected”
will start blinking.
Before data is dumped a number can be

assigned to the file. By tapping on the “0”
behind the File ID number in de screen a soft
keypad as shown to the left will appear.
Enter the desired file number and tap on the
button to start downloading the data.
The data will be stored as a .CSV(Comma

Separated Variables) file.
Make sure to clear memory by tapping on the
button in the Main menu(figure 1 on
page 11).

3.10 Showing the Dealer information
Dealer information is factory set and can only

be changed by an authorized dealer.
Dealer information can be accessed from the
main menu. Starting from the operator menu
tap on the button to go to the main
menu.
The dealer information screen will show all

necessary information to contact the dealer
where this machine was purchased from.
Tap anywhere in the screen to go back to the
main menu.

3.11 Toggle screen colour

The screen appearance can be set for 2 different colours. Tap on the to switch between
amber and red.
3.12 The service menu

The Service menu should only be used by a certified technician and is therefore protected
with a password.

4. Specifications
The reflow oven MISTRAL-260 is developed for lead free reflow soldering of SMT
boards, hybrid boards or curing adhesives.
Transport system
The boards are transported through the oven on a conveyor belt made from high grade
stainless steel spring wires with variable speed between 15 and 60 cm/min (6 to 24 inch/min).
Heating system
Heating is achieved by forced air convection. This reduces the shadow effects and results in
no colour sensitivity, no hot spots and no cold solder joints. The heating system is suitable for
lead-free soldering.
Cooling system
Bottom cooling fans at the offload section ensure cooling of your circuits before leaving the
transport belt.
Control
All functions are controlled by a TFT touch screen display which is easy to program with a
user friendly interface. Furthermore this control is equipped with a USB 2.0
compatible data interface for data output to a printer or storage device.
Exhaust
The integrated exhaust system transports fumes to an outdoor ventilation or filtration unit.
Thermocouple wire
The included thermocouple wire can be used to monitor the temperature progress when
attached to a PCB or any other object running through the oven on the conveyor belt.

5. List of spare parts

Part number: Description:
M-H/800 Preheat element 800 Watt
M-H/1200 Preheat element 1200 Watt
M-H/1800 Reflow element 1800 Watt
M-28201 Forced air heater ventilator
M-C9527 Cooling front/rear blower
M-C9520 Cool-down blower
M-2140/200 Conveyor motor
M-1600 Conveyor belt
M-SW/1ph Main switch
M-MB/20 Main breaker 20A
M-MSW Conveyor spring wire
M-GA5/6D25 Solid state relay
M-PSU PSU/Solid state relay card
M-B10/R Bearing roller input/output oven
THW/1,2/s Thermocouple wire with plug 1,2m
M-ROL/IO Conveyor roller, input/output
M-OVEN GLASS Oven glass hardened

6. Appendix
TOP VIEW
Fume extraction pipe Ø70mm
Conveyor direction
15 – 60 cm/min
6 – 24 incn/min
Preheat zone I Preheat zone II Reflow zone III Cool-down
Max. temp 300°C Max. temp 300°C Max. temp 300°C blowers
1200W 800W 1800W
FRONT VIEW
Thermocouple USB TFT Touch Main breaker Main switch

outlet connector screen display

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MISTRAL 260

Forced Air Convection Oven

© Technoprint 2007 Version 2.03 Page 1

How this manual is organized

© Technoprint 2007 Version 2.03 Page 2

Unpacking the oven:

Ensure that1 thermocouple wire is enclosed

Before starting the oven:

© Technoprint 2007 Version 2.03 Page 3

3. Working with the TFT touch screen

3.1 Starting the program

After the machine is started up with the main

Controlling the unit throughout the complete

Tap anywhere on the screen and a new screen

This is called the operating menu. Here you can

© Technoprint 2007 Version 2.03 Page 4

3.2 Creating a program

Creating a program can be done in the

All settings entered with the soft keypad will

Setting the conveyor speed can be done as

After all settings are entered the screen will

© Technoprint 2007 Version 2.03 Page 5

3.3 Selecting a recipe

Up to 8 recipes can be stored for your

To change to another recipe number:

Tap on the button, a screen looking like

A soft keypad as shown in the screen on the

All settings entered with the soft keypad will be

© Technoprint 2007 Version 2.03 Page 6

3.4 Creating and changing the recipe name

To create a new recipe name or to change an

You should see a screen as shown on the left.

fields for all 8 recipes.

A screen as shown on the left will appear.

© Technoprint 2007 Version 2.03 Page 7

A soft keypad will appear so that a 16 character

As an example under recipe number 1 is the

© Technoprint 2007 Version 2.03 Page 8

3.5 Setting date and time

To alter date and/or time go to the operator

Tap on the button and the main menu

Tap on the button to jump to the setting

© Technoprint 2007 Version 2.03 Page 9

With the soft keypad appearing in the screen

© Technoprint 2007 Version 2.03 Page 10

3.6 Using the Profiler menu

The profiling menu can be used to store, print or

your current screen.

From here there profiler menu can be called up

From this menu all options in the profiling

© Technoprint 2007 Version 2.03 Page 11

In this menu 3 parameters can be set.

The first parameter is the “Peak temperature”.

The second parameter is the “Critical

The third parameter is the time that the PCB is

Either of these parameters can be entered by

After the data is set for the parameters go back

In the operator menu tap on the button to

M-H/800 Preheat element 800 Watt

M-H/1200 Preheat element 1200 Watt

M-H/1800 Reflow element 1800 Watt

M-28201 Forced air heater ventilator

M-C9527 Cooling front/rear blower

M-C9520 Cool-down blower

M-2140/200 Conveyor motor

M-1600 Conveyor belt

M-SW/1ph Main switch

M-MB/20 Main breaker 20A

M-MSW Conveyor spring wire

M-GA5/6D25 Solid state relay

M-PSU PSU/Solid state relay card

M-B10/R Bearing roller input/output oven

THW/1,2/s Thermocouple wire with plug 1,2m

M-ROL/IO Conveyor roller, input/output

M-OVEN GLASS Oven glass hardened