ok-electrode drying ovens operating manual-ing.10

ok-electrode drying ovens operating manual-ing.10
Instruction and
Maintenance Manual
Drying Ovens
Models F3 - F6 - F9
SUMMARY
1. GENERAL INFORMATION……………………………………………………..…...3
2. SPECIFICATIONS…………………………………………………………………....4
2.1. General Specifications…………………………………………………………...4
2.2. Oven general description…………………………………………………….…..4
2.3. Thermal insulation………...………..………………………………………….....5
2.4. Heating elements………………………………………………………………....5
2.5. Electrical Connections – Asbsorption………………………..…………...……5
2.6. Weights and Diimensions……………………..…………………..……….…....5
3. HOW TO ASSEMBLY……………………………………………………….…….…6
4. OPERATING INSTRUCTIONS.…………………………………................……....6
4.1. Oven Sturtup ........................... ....................................................................6
4.2. Working Temperature and Time changing ..................................................6
4.3. Fan Ventiltion System .................................................................................8
4.4. Suggested temperature setting ...................................................................8
5. MAINTENANCE…………………………………………………………….………..8
5.1. Routine Maintenance………………………………..……………….………….8
5.2. Oven heating elements replacement………………..………………….……..9
5.3. Extraordinary maintenance…………...…………………………........………..9
6. SAFETY…………………………………………………………………………….....9
6.1. Accident prevention rules……………………………………………………….9
7. USE CONDITIONS……………………………………….………………………….10
7.1. Foreseen use conditions…………………………….......……………………..10
7.2. Not allowed use……………………………………………………………….....10
8. DISASSEMBLY AFTER USE……………………………..………………………..10
9. DISMOUNTING INDICATIONS ……………………………………………..……..10
9.1. General indications…………........………………………………………..........10
9.2. Materials separation……….………………….………………………………....11
10. WARRANTY……………………………………….………………..…….…………..11
10.1. General conditions…………………………..………………………………...11
10.2. Limitations……….……..…………………………………………………....…11
WIRING DIAGRAMS…….……………..……………………………...…….…………..10
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1. GENERAL INFORMATION
This operator’s manual is an integral and essential part of the product and is supplied
together with the oven. It is suggested to read carefully the manual and observe any stated
indication in order to use the equipment correctly. Please take care of this manual for any
further consultation.
Typographic convention
Danger signal which indicates to observe carefully the instructions for
avoiding possible damages to the equipment or accident.
Danger signal which indicates to pay attention as hot surfaces are present.
This manual wants to be an instructions and maintenance guide for Drying Ovens for
Electrodes model F3 – F6 – F9 both standard models and versions equipped with
ventilation system, which are made by F.B.I. Srl – Via Isonzo,26 – 20050 San Damiano di
Brugherio (MI), Italy.
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It must be used and read by the operators, maintenance employees and by the staff and
purchaser for what it concerns spare parts.
It must be located with care in a known place, protected by dirty and humidity and it
must be always available for consultation by the operators.
Read it and give to read carefully to all the operators in all parts before proceeding to
install, to use, or for maintenance or dismantling of the oven and/or equipment.
Check always that the operator has understood very well how to proceed for use and
the safety symbols fitted on the oven.
Do not damage or remove the labels or the name-plate fitted on the oven.
It is possible to prevent accidents if the given instructions are respected.
Before connecting the oven be sure that the name-plate data correspond to the
electrical distribution system ones.
Do not expose the oven to the inclemency of the weather or install in high humidity
environments, that is bathrooms, etc.
In case of emergency, that is fire starting, anomalous noise, overheating, etc.
disconnect immediately the system electrical connection.
When this manual has been completely damaged, it is possible to ask for a copy directly to
F.B.I. Srl at the above mentioned address giving the following references:
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Type of oven and Model
Serial Number
Supplier/Reseller
Name and address of the User
Correct address where to deliver the copy of the manual.
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In case the oven is given to someone else, please inform us of the change in order to
communicate to the new owner the up-to-date information.
This manual respects the state of the art at the moment of sale and it could not be considered
inadequate if it is reviewed due to improvements.
The producer is not obliged to up-to-date the manual and/or the oven of the users if, in the
meantime, due to the evolution of the technology, he has modified and/or improved the
equipment and/or the manual.
2. SPECIFICATIONS
2.1. General specifications
The drying ovens are mainly used for drying and keeping the treatment of welding electrodes to
avoid hydrogen inclusion into the welding puddle during the welding process.
Three basic models are available and the same equipped with fan ventilation (see Table 1).
Table 1 – Available versions
Model
Description
Load Capacity
F3
Drying and keeping oven with 3 removable trays
4500 electrodes * - Kg 203
F3 V
Drying and keeping oven with 3 removable trays
and fan ventilation system
4500 eletctrodes * - Kg 203
F6
Drying and keeping oven with 6 removable trays
9000 eletctrodes * - Kg 404
F6 V
Drying and keeping oven with 6 removable trays
and fan ventilation system
9000 eletcrodes * - Kg 404
F9
Drying and keeping oven with 9 removable trays
13500 electrodes *- Kg 608
F9 V
Drying and keeping oven with 9 removable trays
and fan ventilation system
13500 electrodes *-Kg 608
* quantity of electrodes having ∅ 3,25 mm
2.2. Oven general description
The oven has an external structure made of sheet steel painted with epoxy powder coating to
withstand heavy working conditions as humidity, corrosion and salty atmosphere.
The inner chamber is made of aluminium coated sheet steel for a better thermal reflectance.
The door has a heavy latch system that compresses fiber glass seal against the oven exterior
wall to insure maximum oven efficiency. Two vents are located on top of the oven to release
any moisture present inside the oven on start up.
An optional radial fan enhances air circulation in the oven chamber. A micro switch located on
the door stops the fan when the door is opened.
The oven is equipped with removable trays to hold the electrodes. The quantity of trays in the
oven chamber will depend on the oven size. On the top of the oven a control box is located
with the main switch, the thermoregulators and the signal pilot lamps. On the back of the oven
there is the power supply plug.
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2.3. Thermal Insulation
Rock wool insulation installed between the external structure and the internal chamber for a
better heat distribution throughout the oven chamber. A door gasket made of glass fiber insures
a minimum amount of heat loss.
2.4. Heating Elements
The armoured heating elements, situated below the removable trays in the oven chamber, are
made of stainless steel for longer life. The heating element electrical connections, located in the
back of the oven, are protected by a metal cover. The heating elements in the oven chamber
are supported by a bar. The quantity of heating elements is in accordance with the oven
dimension.
2.5. Electrical connections – Consumption
Model
Voltage
Heating
Elements
Total Nominal
Rating
IP Protection
Grade
F3
400 V ac- 50/60 Hz three-phase
3
4,5 kW
44
F3 V
400 V ac- 50/60 Hz three-phase
3
4,7 kW
44
F6
400 V ac- 50/60 Hz three-phase
6
9,0 kW
44
F6 V
400 V ac- 50/60 Hz three-phase
6
9,4 kW
44
F9
400 V ac- 50/60 Hz three-phase
9
13,5 kW
44
F9 V
400 V ac- 50/60 Hz three-phase
9
13,8 kW
44
The drying ovens are provided with IEC plug and socket suitable for the power supply type.
2.6. Weights and dimensions:
Model
Internal Size
(lxwxh)
External Size
(lxwxh)
Oven
Weight
Packaging Size
(lxpxh)
Weight
for
Transport
F3
mm 560 x 740 x 560
mm 800 x 880 x 1050
Kg 144
mm 900 x 900 x 1050
Kg 154
F3 V
mm 560 x 740 x 560
mm 800 x 880 x 1050
Kg 144
mm 900 x 900 x 1050
Kg 154
F6
mm 560 x 740 x 980
mm 800 x 880 x 1480
Kg 200
mm 900 x 900 x 1500
Kg 215
F6 V
mm 560 x 740 x 980
mm 800 x 880 x 1480
Kg 204
mm 900 x 900 x 1500
Kg 219
F9
mm 560 x 740 x 1430
mm 800 x 880 x 1880
Kg 266
mm 900 x 900 x 1900
Kg 280
F9 V
mm 560 x 740 x 1430
mm 800 x 880 x 1900
Kg 270
mm 900 x 900 x 1920
Kg 284
3. ASSEMBLING INSTRUCTIONS
The oven is packaged in heavy duty cardboard packaging for shipment. The oven is equipped
with eyebolts so that it can be handled by a lifting device.
Connect the oven electrical cable placed on the rear of the oven to the power supply in
accordance with all local and national electrical and safety standards; The suitable working
voltage and wattage rating are listed on a label located on the oven.
The oven is now ready for use.
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4. OPERATING INSTRUCTIONS
THE OVEN IS ALREADY PRE-ADJUSTED TO ACT THE COMPLETE DRYING AND
KEEPING CYCLE.
4.1. Oven startup :
a) check the power supply connections
b) act on the general switch and check that power is on
c) check the net presence
d) After a self-control phase of 10 seconds, the thermoregulators are on and start doing the
ON/OFF symmetrical adjustement with 5°C hysteresis according to the temperatures and
times set up in advance.
“SET POINT 1” (drying) 370°C – 6 hours time – “SET POINT 2” (keeping) 120°C with safety
control on the heating elements at 470°C.
4.2. Working temperature and time changing
In the case a different programming is required, please act as per the following instruction:
a) ADJUSTMENT OF THE HEATING ELEMENTS CONTROL AND SAFETY
THERMOREGULATOR (°C heating element) : press and release the key L1 : the L1 led
starts lightening, 1SP is displayed for one second , then the value linked to the setpoint
appears; press
or
to change the value ; by pressing
the new value and the return
to normal mode can be saved; the same happens after 10 seconds the keyboard is inactive;
press 0/1 to return to normal mode without saving any value.
b) ADJUSTMENT OF THE OVEN-ENVIRONMENT THERMOREGULATOR (°C ovenenvironment) at active “SET POINT” stage (SP1 or SP2).
Cycle SP1 (drying): pressing the “P” key (for 1 sec.max.) , the SP1 adjustment is activated; act
on UP
and DOWN
and set the required temperature (400°C max.); enter by
pressing the 2P” key (for max. 1 sec.)
After 6 hours (the time is adjustable from MENU as per following description) you can go to:
Cycle SP2 (keeping): pressing the “P” key (for 1 sec.max.), the SP2 adjustment is activated; act
on UP
and DOWN
and set the required temperature (200°C max.); enter by
pressing the “P” key (for 1 second max.)
During the programming phase the checking is stopped
c) ADJUSTMENT OF THE OVEN-ENVIRONMENT THERMOREGULATOR (°C ovenenvironment) at inactive “SET-POINT” stage (SP1 – SP2)
The programming menu is activated pressing on “P” key for more than 2 seconds.
Through UP
OPER
CONF
OFF
TUNE
REG.
OPLO
and DOWN
keys, select:
GO TO OPERATIVE PARAMETERS MENU
DO NOT ACT
DO NOT ACT
DO NOT ACT
DO NOT ACT
DO NOT ACT
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Select “OPER” and enter by the “P” key
“ ]SP” appears, enter by pressing “P” key, “SP1” appears, enter by pressing “P” , 370 (or last
programming) appears, select by UP
/ DOWN
until the required value is achieved,
enter by pressing “P” key.
Select by UP
/DOWN and choose “SP2”, enter by pressing “P”, 120° (or last programming)
appears, select by UP
/DOWN
until the required value is achieved, enter by
pressing “P” key.
( The thermoregulator gets back to start, whether no change is done in 20 seconds)
d) DRYING TIME PROGRAMMING ( T LASTING)
The programming menu is activated pressing on “P” key for more than 2 seconds.
Through UP/
OPER
CONF
OFF
TUNE
REG.
OPLO
DOWN
keys, select:
GO TO OPERATIVE PARAMETERS MENU
DO NOT ACT
DO NOT ACT
DO NOT ACT
DO NOT ACT
DO NOT ACT
Select “OPER” and enter by the “P” key
“]
SP” appears, select by UP
/DOWN
keys, “] REG” appears, press “P” and time last.
appears, press “P” and 6.00 (last programmino stated in hours, min.) appears, select by
UP/DOWN keys, until the required value is achieved, enter by pressing “P” key.
(The thermoregulator gets back to star, whether no change is done in 20 seconds)
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It is necessary to switch the oven off and switch it on again when you change the
parameters for making them operative.
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In case of power disconnection , at the restarting, the cycle inizialises from
beginning: “SP1” – “6 hours” – “SP2”.
The“SP2” holding cycle goes on until the power disconnection made by the main switch.
For a right treatment of the flux and electrodes it is advisable to consult the instruction
stated by the relevant manufacturers.
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4.3. For the models equipped with fan ventilation system:
Switch on the ventilation fan acting on the selector placed on the front ; check it is
operating by the relevant light signal.
Check the motor running direction (the air must be forced inside the oven)
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A pilot light signals the possible intervention of the motor thermic.
Open the electrical panel cover after switching off the power;
Go on with restarting, checking that the electrical power is right and the motor is working
well.
4.4. Suggested Temperature Setting
These are typical temperature settings for the treatment of most welding electrode. Always
consult the electrode manufacturer’s specification for the holding and drying temperature of
electrodes.
Operation time
Set Point 1
Set Point 2
Timer
± 350 / 420°C ( ± 650 / 800°F)
Drying
Drying cycle lasting
4h + 2h
± 120 /150°C ( ± 220 /300°F)
Keeping
5. MAINTENANCE
5.1. Routine Maintenance
Plan the routine maintenance when the oven is not in use.
Warning! Switch off the Electrical power to the oven before
performing maintenance
Check the oven is always in efficient condition.
Check the wiring cable and, if damaged, replace it immediately.
5.2. Oven - Heating element replacement
To replace heating element, proceed as follows:
Warning! Switch the main supply off
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Make sure that the heating element are cool prior to performing maintenance.
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Open the oven door and remove the electrode trays.
Remove the metal hat shaped cover located on the rear of the oven.
Disconnect the faulty heating element and replace with a new one having the same
properties and sizes.
Fit the new heating element.
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Reassemble the bottom cover on the rear of the oven.
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Place the electrode trays in the oven chamber.
Switch on the oven main power switch for few minutes to eliminate any possible
humidity residual on the new heating element.
Switch off the oven and let the heating elements cool.
The oven is now ready for operation.
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5.3. Extraordinary maintenance
Check periodically the electrical wires, the components and the connections and replace
them when damaged.
In case of any other further problem, please contact your usual dealer or directly F.B.I. Srl,
who will help you with right indications for a good use.
Please inform us of any problem you may have. Plus, please let us know any suggestion
you believe useful to improve the equipment. It is welcome.
6. SAFETY
6.1. Accident prevention rules
In order to observe and to prevent the safety of the employees using this oven, users should
follow these standard safety procedures:
1. The users must use the wear safety goggles, shoes, dressing or something else
suitable for the place and the ambient when they are operating.
2. Read carefully the instructions reported on this manual.
3. Check the electrical connections before switching the oven on.
4. Switch the power supply off before disconnecting the pin
5. Attend to all cautions mentioned time by time on this manual.
ALL THE OPERATIONS MUST BE DONE AT THE BEST SAFETY CONDITIONS.
7. USE CONDITIONS
7.1. Foreseen use conditions
The oven has been designed for welding electrode drying and keeping treatments.
Any other use, different from what indicated by the producer, could be hazardous for the
operator.
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The supply power cables must be disconnected during the oven displacement.
Handle the oven using the relevant eyebolts and a suitable lifting device.
The oven has to be placed in a safe area, protected against mud, water and sheltered from rain
and humidity. The unit cannot be used in the open air.
The oven door can be locked (lock not supplied) to avoid opening the door during the drying
process.
We suggest the assignment of an electrode treatment manager to insure the proper treatment
of electrodes.
The operator should wear the appropriate attire with all safety devices when opening the oven.
Never access the oven during the drying process because of the very high temperature.
The keeping oven is only designed and manufactured for specific function. Be sure to use all of
the safety devices supplied or suggested by the manufacturer.
Any modification to the oven and relevant accessories is forbidden.
Always remember that electricity is applied to the oven even if the thermostat is OFF.
7.2. Not allowed use
Do not store or heat liquids.
Do not tamper with electrical circuitry of the oven.
Do not leave the air snorkels closed during the drying cycle (their opening improves air
circulation)
Do not use the oven at the open air and exposed to weather inclemencies.
Do not use the oven without the appropriate safety devices.
When the oven has to be controlled, please switch the main power switch off, before
operating.
In case of fire, do not use liquid or foam fire extinguisher
8. DISASSEMBLY AFTER USE
When the utilisation is completed, switch the main power supply off and remove the
remaining electrodes putting them in a keeping oven.
If the electrodes have soaked up humidity, provide for a new dryer treatment before using
them again.
Store the oven in a sheltered and dried place protected by accidental impacts.
9. DISMOUNTING INDICATIONS
9.1. General indications
Do not waste the oven in the ambient.
Make a separation of the components selecting by category for a possible reuse or
separate waste.
In any case please refer also the local regulations about waste.
9.2. Separation of the components
The materials composing the drying ovens are:
Steel
main body
Stainless Steel (inox)
inner structure
Copper
wires, transformer winding
Plastic
switches, thermoregulator body and contactor
Glass fiber
door gasket
Rock Wool
Inner Insulation
Other materials
electronic components
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10. WARRANTY
10.1.General conditions
F.B.I. Srl guarantees the product mentioned in this manual for a period of 24 (twenty-four)
months from the date of delivery.
The warranty is valid for the above mentioned period and only for the parts that will have
defect of design or defective material.
Complaints have to be sent directly to F.B.I. Srl mentioning the reason of the defect.
F.B.I. Srl will give you further instructions for repairing or replacing the complained parts,
free of charge.
Any transport expenses will be covered by the customer.
10.2. Limitations
F.B.I. Srl is not and will not responsible for:
• Improper use of the oven
• A use against the national and/or International regulations in force
• Improper or wrong connection
• Bad fault on maintenance
• Unauthorized modifications and/or services
• Use of non-original spare parts or non-specific components
• Inobservance of the instructions, also only partially
• Unusual events as natural disasters, wars, strikes or similars.
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WIRING DIAGRAMS
DRAWING RELEVANT TO ELECTRODE DRYING OVEN
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DRAWING RELEVANT TO ELECTRODE DRYING OVEN EQUIPPED WITH FAN VENTILATION
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LEGENDA:
Drying and Keeping oven for electrodes and/or flux
Ia
Ib
Ic
Tr2
Tr1
L1
L2/l3/l4
K
K1
M
R1-R2-R3
TR
F1-F2-F3
F4-F5
F6
Rt
Vf
Lt
S
Main switch. Sectioner 3X16/3X25/3X32 A.
Fan ventilation system switch
Door micro-switch
Heating element thermoregulator
Oven air thermoregulator
Heating element “ON” signal - green
Electric connection signal - white
Heating elements remote control switch
Fan ventilation remote control switch
Fan motor 380 V. 0,25KW
Heating elements 230V. 1500W x F3-F6-F9-Fm2 / 2750W x FMFM1 / 1300W x F100-F200-F400
Transformer 220-380/24 V - 380/220V
50VA
Fuses 16-20-25-32A
Fuses 2A
Fuses 6A
Fan motor thermal relay
Equipment cooling fans x F200-F400
Thermic presence signal - red
Selector – A – B -
_____________________________________________________________________________
F.B.I. Srl - Via Isonzo, 26 - 20050 San Damiano di Brugherio (MB)
Tel. +39 039 2028086 – Fax +39 039 2028126
www.fbifbi.com -e-mail: mail@fbifbi.com
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