Foss OMC-W36 User manual

OMC-W36
CONNECTOR HEAT OVEN
USER´S MANUAL
Issued: March, 2018
Foss Fibre Optics, s.r.o.
Odnorarska 52
831 02, Bratislava
Slovak republic
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.fossfibreoptics.com

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OMC-W36 CONNECTOR HEAT OVEN USER´S MANUAL
Copyright © 2000, Optocon technologies s.r.o.
All rights reserved.
This document was prepared for use by customers, licensees and personnel.
All the information contained in this manual is the property of Optocon technologies
s.r.o. and shall not be reproduced whole or in part, without prior written approval.
Optocon technologies s.r.o. reserves the right to make changes without notice to the
technical specification contained in this manual.
The following symbols or alerts are used throughout this manual to denote safety
precautions. Read and follow them carefully.
The symbols and alerts have the following meanings:
Ignoring or failing to follow items marked by
this symbol could lead to severe personnel
injury or death.
Ignoring or failing to follow items marked by
this symbol could result in personnel injury
or damage to the device.
WARNING
CAUTION
!
!

PLEASE OBSERVE THE FOLLOWING INSTRUCTIONS:
•NEVER touch or put your hands or fingers on the ferrule/plug cassette block
while the heating process has been started or interrupted. Actual temperature
of the ferrule cassette is indicated on the LCD display. Touching the hot
ferrule/plug cassette may result in serious injury.
•NEVER detach the cassette from the tray immediately after finishing the
heating process. Allow enough time for it to cool. Actual temperature of the
ferrule cassette after finishing or interrupting the heating process is indicated
on the LCD display.
•NEVER touch the control panel or electrical cord with wet or damp body parts
as it may cause severe shock or injury.
•NEVER remove the bottom cover of the unit while main power plug is
connected to electricity. Opening the unit may cause electric shock, severe
injury, flash burn or death.
•ALWAYS use the unit at the rated voltage, as indicated on rear panel, above
the inlet plug. As the unit requires proper grounding use 3-wire plug cord with
a Type 3 or better grounding.
•ALWAYS turn off the power and unplug the power cord from the outlet in the
event of the following:
-changing the fuse
-any strange smells, sounds or smoke arise from the unit
-the unit does not correctly respond to the commands indicated on LCD
display
-temperature of the curing process rises far above the preset
temperature (by more than 10°C)
•ALWAYS close the protective closure before starting the heating process. Do
not touch the cassette and ensure the protective cover remains closed during
the heating process
WARNING
CAUTION
!
!

•NEVER perform any of the following. Doing so may lead to fire, electrocution
or other serious accident:
-hit or subject the unit to any kind of shock
-place the unit on an unsteady surface
-forcibly bend and place heavy objects on the unit
-cover the unit while in operation with any kind of cover disabling proper
natural ventilating

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CONTENTS
CHAPTER 1
1.1 Introduction
1.2 Standard packing items
1.3 Heat oven description, names and functions of the parts
CHAPTER 2
2.1 Installation place and environmental conditions
2.2 Power supply
2.3 Specifications
2.4 Installation
CHAPTER 3
3.1 Software description
3.2 Operating the unit
3.2.1 Setup procedure
3.2.2 Process confirmation
3.2.3 Running the heating process
3.2.4 Interrupting the heating process
CHAPTER 4
4.1 Troubleshooting
4.2 Changing the fuse

CHAPTER 1
1.1 Introduction
OMC-W36 is a user programmable heat oven with a vertical tray used for
hardening the epoxies used during the assembly of fiber optic connectors. It is
primary intended to heat the fiber optic ferrules and plug type fiber optic connectors
in which the epoxies bond the optical fiber. Heating process usually consists of three
(3) subsequent periods (steps):
-warm up period: during this period the heat oven heats the cassette
with loaded fiber optic parts (ferrules, plugs). This time period cannot
be set by customer and is determined by internal components and
ambient temperature. This period can be interrupted manually by the
operator at anytime
-cure period: during this period the temperature of the cassette remains
stable at certain temperature level for desired time. The temperature
and time depends on epoxies manufacturer recommendations.
Operator can set cure temperature and cure time manually. This period
can be interrupted manually by the operator at anytime
-cool down period: as soon as the cure time is over, the cassette starts
to cool. Cooling is caused only by the influence of an ambient
environment. The unit remains in this condition unless the operator
starts the heating process again.
Figure 1.1.1. The heating process explanation
Ambient
temperature
Preset cure
temperature
warm up
period
cure period = preset
cure time
cool down
period
Temperture scale (°C)
Time scale
(min.)

OMC-W36 is recommended for curing the following types of fiber optic
ferrules/connectors:
-standard 2.5 mm ceramic, glass and metal singlemode or multimode
ferrules
-standard 1.25 mm ceramic, glass and metal singlemode or multimode
ferrules
-standard plug type fiber optic connectors with 2.5 mm ferrules (FC, SC,
ST, E2000, DIN, etc.)
-standard plug type fiber optic connectors with 1.25 mm ferrules (LC,
MU, etc.)
-FSMA905 and FSMA906 plug type connectors with 3 mm ferrule
1.2 Standard packing items
In the table 1.2.1 there is a list of parts shipped with the heat oven:
Part name
Part Number
Quantity
Note
Constituent parts:
OMC-W36-X
1 pce
1 set
1 pce
2 pcs
1 pce
See note >
1 pce
check data sheet for details
consist of 6 parts
check data sheet for details
check data sheet for details
Provided as download link
on warranty certificate and
on a label located on back
side of the unit
- main unit
- cord holder
- power plug
- screwdrivers
- spare fuse
- user’s manual
- warranty certificate
Optional parts:
Optional parts can be ordered
and shipped along with heat
oven, check data sheet for
details
- cassette(s)
- groove plate(s)
Table 1.2.1. Part list, standard and optional packing items
1.3 Heat oven description, names and functions of the parts
The OMC-W36 heat oven consist of three (3) main parts:
-the main unit
-cord holder
-cassettes for ferrules/plugs

The main unit houses all crucial electrical and electronic components that are
necessary for proper function of the unit. Front and back view of the main unit with
names of each part of main unit is shown on figure 1.3.1.
Vertical Tray Heating plate LCD display
Protective cover Buttons Power switch
Mains inlet Fuse box Fixing screw for
cord holder
Figure 1.3.1. Font and back view of the main unit
The cord holder is an important part of the heat oven as it enables to hold small or
large fiber coils during the heating process and during loading/unloading the
cassettes. The cord holder is easily adjustable to the form that will suit most tail
lengths and coil diameters. The cord holder consists of six (6) parts:
-two long and one short steel bars (total 3 pcs)
-two clamps (total 2 pcs)
-one stop ring (total 1 pce)
Assembled cord holder is shown on fig. 1.3.2.

Clamps Stop ring
Steel bars
Figure 1.3.2. Assembled cord holder
The cassette is the holding device for the connector components, which have to be
heated. The groove plate is a part of the cassette, though it can be removed and
replaced by different types of groove plates. Cassettes are of various styles,
depending on the ferrule/connector type. A typical cassette with groove plate is on
fig. 1.3.3.

Figure 1.3.3. The cassette with groove plate
CHAPTER 2
2.1 Installation place and environmental conditions
It is strongly recommended to pay attention to where the heat oven will be
installed. The installation place should satisfy the following conditions.
Temperature: 10 to 40°C
Relative humidity: 15 to 85% RH (non condensing)
Storage temperature: 0 to 50°C
Furthermore, the unit should not be in any of the following kind of places:
-places exposed to direct sunlight
-places with violent temperature swings
-places frequently exposed to mechanical vibrations
-places that are very dusty
-places that are poorly ventilated
Do not install the oven in places that are near an air conditioning vent.
2.2 Power supply
The power supply conditions for the OMC-W36 heat oven are as follows:
Model OMC-W36-1:
•Power supply voltage .................. single phase AC 110V ± 10%
•Power supply frequency .............. 50/60 Hz ± 10%
•Power consumption rating ........... 250W

Model OMC-W36-2:
•Power supply voltage .................. single phase AC 230V ± 10%
•Power supply frequency .............. 50 Hz ± 10%
•Power consumption rating ........... 250W
2.3 Specifications
-Operating temperature range: 40 °C – 140 °C
1
-Temperature stability +/- 2 °C
•ALWAYS use the unit at the rated voltage, as indicated on rear panel, beside
the inlet plug. As the unit requires proper grounding use a 3-wire plug cord
with a Type 3 or better grounding. Ignoring or failing to follow the above
instructions can lead to permanent damage to the device and severe
personnel injury or death.
2.4 Installation
Please follow these steps during installation of the unit:
i. Put the unit on a flat desk in place that conforms to the environmental
conditions as listed in paragraph 2.1
ii. Assemble the cord holder. Insert the cord holder into mounting hole on
the top unit. Fix the cord holder by fixing the screw at the back panel
of the unit by the screwdriver provided.
iii. Connect the power cable to the AC inlet in the back panel of the unit
and plug it to a wall outlet.
1
Cure temperature can be set above 140 °C, but it is not recommended as the automated protection switch will
be activated when cure temperature exceeds 140 –150 °C
WARNING
!

Check the heat oven at the end of installation by the following procedure:
i. Power on the unit with the power switch on the front panel of the unit.
ii. Confirm that the power switch and LCD display is lit. The following
message should appear on the LCD (fig. 2.3.1):
Figure 2.3.1. Message on LCD after power on
The unit is now ready for the operation. Instructions on how to operate the unit are
described in Chapter 3.
HEAT OVEN READY
SETUP NEXT

CHAPTER 3
3.1 Software description
The software allows the user to have full control over the heating process. It
allows setting up cure temperature and cure time, these are necessary parameters
dependent on the kind of epoxy. All the information that is necessary to the operator
is shown on the LCD display on the front panel. Buttons below the LCD are used to
control the unit, setting up necessary parameters and controlling the heating
process. The LCD has two lines, upper and lower. The upper line contains
information about the heating process; the lower line is used to show command
words. The only exception is during countdown of the cure period, when the elapsed
cure time is shown on the lower line.
The function of each button is dependent on the command word that appears
on the bottom line of the LCD display above each of the buttons. If no command
word appears above the button, the button is without the function and no execution
will happen while pressing this button. By pressing the button straight below the
actual command word execution will happen. Execution of the command is confirmed
by a short beep. The following command words may appear during the operation of
the unit:
-SETUP: by pressing the button below this command word you enter
the setup procedure. In setup, you are allowed to set desired heating
process parameters (cure time, cure temperature)
-NEXT: by pressing the button below this command word you move to
the next program procedure. This command appears only after turning
the unit on
-UP: by pressing the button below this command word you can increase
the cure time or cure temperature. Do not set the cure temperature
above 140 °C
2
, as the automated protection will be activated. If this
happens, wait 30 minutes to cool down and set the curing temperature
below 140°C
-DOWN: by pressing the button below this command word you can
decrease the cure time or cure temperature
-OK: by pressing the button below this command word you accept and
set the parameter (cure time or cure temperature). The parameter is
then stored in memory and used to the control heating process
afterwards. This parameter remains in memory even when the unit is
switched off
-RUN: by pressing the button below this command word you start the
heating process
-STOP: by pressing the button below this command word you may stop
the heating process
-AGAIN: by pressing the button below this command word you may
start the heating process with the set parameters again
2
Automated temperature protection above 140 °C is applied on all models produced in year 2016 and later

3.2 OPERATING THE UNIT
Before starting the heating process, make sure that you performed the correct
installation steps, as described in Chapter 2. Turn on the unit and the message
HEAT OVEN READY shall appear on the LCD display, fig. 3.2.1.
Figure 3.2.1. Heat oven ready for operation
Load your cassette with ferrules/plugs, insert the cassette into the tray and close the
protective cover. By pressing the SETUP button, you will enter the setup procedure,
as described in paragraph 3.2.1. By pressing the NEXT button, you will go to the
Process Confirmation, as described in paragraph 3.2.2.
3.2.1 Setup
The setup procedure allows the operator to set the cure time and cure
temperature; the parameters that are important to correctly harden the epoxy. The
operator may obtain these parameters from the epoxy manufacturer. Factory preset
parameters are: cure temperature 120°C, cure time 15 minutes. By pressing the
SETUP button, the following contents appear on the LCD display, fig. 3.2.1.1:
Figure 3.2.1.1 Setup process for the cure temperature parameter
Set the desired cure temperature by pressing the UP or DOWN button, then confirm
by pressing the OK button once. This will store the parameter in the microcontroller
memory. This parameter will be used until you change it by entering the SETUP
SETUP button
NEXT button
UP button
DOWN button
OK button
HEAT OVEN READY
SETUP NEXT
CURE TEMP 120°C
UP DOWN OK

procedure again. Right after pressing the OK button, cure time setup procedure
follows, fig. 3.2.1.2.
Figure 3.2.1.2 Setup process for the cure time parameter
Set the desired cure time by pressing the UP or DOWN button, then confirm by
pressing the OK button once. This will store the parameter in the microcontroller
memory. This parameter will be used until you change it by entering the SETUP
procedure again. By pressing the OK button, the confirmation step follows.
3.2.2 Process Confirmation
Confirmation is required before starting the heating process. This will allow
the operator to confirm that the parameters were set up correctly. Let us assume
that these parameters were set during setup procedure: cure temperature 120°C and
cure time 10 minutes. The following contents will appear on the LCD display, fig.
3.2.2.1:
Figure 3.2.2.1 Confirmation for the cure time and the cure temperature parameters
If the parameters are not correct and you want to make amendments, pressing the
SETUP button will enter the setup procedure, as described in paragraph 3.2.1. If the
parameters are correct, the operator can start the heating process by pressing the
RUN button once.
3.2.3. Running the heating process
UP button
DOWN button
OK button
SETUP button
RUN button
CURE TIME 15MIN
UP DOWN OK
CURE 10MIN/120°C
SETUP RUN

Once the RUN button has been pressed, the heating process will start, as
described in paragraph 1.1, chapter 1. The heating process consists of three
subsequent periods: the heating period, curing period and cool-down period. So, first
heating period starts, fig. 3.2.3.1
3
.
- Heating period
Figure 3.2.3.1 Display contents during the heating period
During the heating process the heating plate and thus the ferrule/plug
cassette is constantly heated. The actual temperature of the heating process is
shown on LCD. Pressing the STOP button can interrupt this period. Otherwise, the
temperature rise will continue until it reaches the preset parameter. Then, the curing
period follows, fig. 3.2.3.2
- Curing period
Figure 3.2.3.2 Display contents during the curing period
During this period, the temperature should remain stable (within +/- 2°C)
4
.
Elapsed time is shown on the LCD display in bottom line. Please note that the button
below is without the function now, see fig. 3.2.3.2. As soon as the elapsed time
reaches the preset parameter, the cure is finished. This is announced by a long
audible beep in order to warn the operator that the cure period is over. From this
point forward, the temperature starts decreasing continuously.
3
Temperature shown on this figure is an example only. The operator will observe the continual increase in actual
temperature.
4
When the temperature reaches its preset value during the heating period, temperature overrun by more than
+2°C may occur at the beginning of the curing period. This is caused by accumulating the excessive heat in the
heating plate.
STOP button
no function
STOP button
elapsed time
HEATING 045°C
STOP
CURING 120°C
01:30 STOP

- Cool down period
Figure 3.2.3.3. Display contents during the cool down period
Cool down period starts right after finishing the curing period. The contents of
the LCD display are shown on fig. 3.2.3.3
5
. Temperature starts decreasing and the
heat oven remains in this condition unless the operator starts the heating process
again. It is strongly recommended to allow enough time for the cassette to cool
enough (min. 50°C or less) in order to avoid personnel injury . To make this process
faster, you may open the protective cover. Then it is possible to unload/reload the
cassette and start the heating process again simply by pressing the AGAIN button.
Confirmation dialogue will appear, as in paragraph 3.2.2. In case the parameters
should be changed, pressing the SETUP button will enter the setup procedure, as
described in paragraph 3.2.1.
3.2.4 Interrupting the heating process
The heating process may be interrupted, if necessary, by pressing the STOP
button anytime this command word appears on the LCD display. On doing so the
following display will appear on the LCD screen, as shown Fig. 3.2.4.1
6
:
Figure 3.2.4.1. Display contents after interrupting the heating process
5
Temperature shown on this figure has been selected randomly. The operator will observe the continual
decrease in actual temperature
6
Temperature shown on this figure has been selected randomly. The operator will observe the continual
decrease in actual temperature
SETUP button
AGAIN button
SETUP button
AGAIN button
FINISHED 118°C
SETUP AGAIN
STOPPED 120°C
SETUP AGAIN

The actual temperature of the cassette is shown on the LCD. It is strongly
recommended not to remove the cassette from the tray until the temperature
decreases to 50°C or less . If removing the cassette is unavoidable due to specific
reasons (epoxy leak, fiber has broken, etc.), the operator must arrange that there is
no risk of other persons getting too close to the hot cassette and thus avoid
accidental contact.
•NEVER touch or put your hands or fingers on the ferrule/plug cassette block
while the heating process has been started or interrupted. Actual temperature
of the ferrule cassette is indicated on the LCD display. Touching the hot
ferrule/plug cassette may result in serious injury.
•NEVER detach the cassette from the tray right after finishing the curing
process. Allow enough time to let it cool. Actual temperature of the ferrule
cassette after finishing or interrupting the heating process is indicated on the
LCD display.
WARNING
!