Hakko FX305 Instruction Manual

© 2022 HAKKO Corporation. All Rights Reserved.

SOLDERING POT

FX-305

Instruction Manual

Thank you for purchasing a HAKKO product.

This product is a soldering pot.

Make sure to read this manual before using the product, and keep it in a safe place for future reference.

2. Specications

Pot

Power
consumption

Temperature
range

Dimensions

Weight 2.5 kg (5.5 lb)

* The weight excludes the cord.
* This product is applied with electrostatic countermeasures.
* The molten solder capacity is measured using Sn-Pb based solder.
* Please note that specications and appearance are subject to change without notice in the interest of product improvement.

550 W (100 V), 680 W (110 V),
575 W (120 V), 580 W (220 V),
640 W (230 V), 700 W (240 V)

50 × 50 square: 50 to 530ºC (120 to 990ºF)
75 × 75 square: 50 to 500ºC (120 to 940ºF)
100 × 100 square: 50 to 450ºC (120 to 850ºF)

Main unit only:
162 (W) × 100 (H) × 239 (D) mm
(6.4 × 3.9 × 9.4 in)
With solder pot cover attached:
162 (W) × 123 (H) × 239 (D) mm
(6.4 × 4.8 × 9.4 in)

Solder pot
dimensions
(inner)

Molten solder
capacity

50 × 50 square: 50 (W) × 42.5 (H) × 50 (D) mm

75 × 75 square: 75 (W) × 42.5 (H) × 75 (D) mm

100 × 100 square: 100 (W) × 53 (H) × 100 (D) mm

50 × 50 square: 0.85 kg (1.9 lb)
75 × 75 square: 1.9 kg (4.2 lb)
100 × 100 square: 2.75 kg (6.1 lb)

(2 × 1.7 × 2 in)

(3 × 1.7 × 3 in)

(3.9 × 2.1 × 3.9 in)

1. Set contents and assembly

Main Unit FX-305 (Pot size: 75 × 75 square) .......................1

Solder waste collector ..........................................................1

Spatula .................................................................................1

Solder pot cover ...................................................................1

Hexagon wrench (Size 2 mm) .............................................1

USB cable.............................................................................1

Solder pot cover

Spatula Hexagon wrench

75 × 75 square pot

Power cord

Power switch

IR receiver

USB cable

Connect to a computer
(See the separate document
"Connecting to a Computer")

(See "4-3. Operation")

Software (CD-ROM) .............................................................1

Power cord ...........................................................................1

Instruction manual

(this document) .....................................................................1

Instruction manual

(Quick Parameter Settings / Connecting to a Computer) .....1

Main unit

*This product may differ from the following:

Solder waste collector

See the web page for the product information such as replacement parts/options.

https://www.hakko.com/doc_fx305-ah

Confirm the contents before use.

Software (CD-ROM)

CAUTION

■

Handling precautions for ESD Safe products

This product contains electrostatic countermeasures, so please use the following precautions:

1. Not all plastic parts are insulators, they may be conductive. Be careful not to expose live electrical parts
or damage insulating materials when performing repairs or replacing parts.

2. Be sure the product is grounded before use.

HEAD OFFICE

4-5, Shiokusa 2-chome, Naniwa-ku, Osaka 556-0024 JAPAN
TEL: [phone] FAX: [phone]
https:// www.hakko.com E-mail: [e-mail]

OVERSEAS AFFILIATES

U.S.A.: AMERICAN HAKKO PRODUCTS, INC.

TEL: [phone] FAX: [phone]
Toll Free (800) 88-HAKKO

4 2 5 5 6

https:// www.HakkoUSA.com E-mail: [e-mail]

HONG KONG: HAKKO DEVELOPMENT CO., LTD.

TEL: [phone] FAX: [phone]
https:// www.hakko.com.cn E-mail: [e-mail]

SINGAPORE: HAKKO PRODUCTS PTE., LTD.

TEL: [phone] FAX: [phone]
https:// www.hakko.com.sg E-mail: [e-mail]

Please access the code for overseas distributors.
https:// www.hakko.com/doc_network

2022.07

80.1025-001a

3. Warnings, Cautions, and Notes

Warnings, cautions, and notes are placed at critical points in this manual to direct your attention to signicant
items. They are dened as follows:

WARNING: Failure to comply with a WARNING may result in serious injury or death.

CAUTION:

Be sure to observe the following precautions to ensure safety.

● This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and understand the hazards involved.

●Children shall not play with the appliance.

●Cleaning and user maintenance shall not be made by children without supervision.

● When in use the pot and molten solder are able to reach temperatures higher than 500ºC. You may risk

getting burned or causing a re if mishandled.

●Use the product on a stable metal workbench and make sure there are no ammable materials nearby.

●Do not put water into the pot. Doing so is dangerous, as it can cause solder to splatter.

●Do not touch any metal parts around the pot.

●Do not place anything that easily burns or ignites near the product.

●Make sure that people nearby are aware of the "high temperature danger."

● Disconnect the power cord and wait until the solder and pot have cooled to a safe ambient temperature
before changing pots.

● When the product is not in use, being repair, or being cleaned, turn o󰀨 the power switch and disconnect
the plug from the power outlet.

Failure to observe the following precautions to ensure safety might result in electric shock, malfunction or
other trouble.

●Before using this product, fully read all descriptions in this document.

●Only use the product for soldering.

●Soldering produces smoke, so make sure to work in a well-ventilated area.

●Use genuine HAKKO parts for included parts/replacement parts/options.

●Do not modify this product.

●Do not use damaged cords or plugs. Doing so can result in malfunction or injury.

●Do not use the product if it has been dropped or shows signs of damage.

●When inserting and removing the cord, hold the plug body and do not pull the cord.

●Do not allow this product to get wet. Also, do not handle it with wet hands.

●Do not perform any other actions that may be considered to be dangerous.

Failure to comply with a CAUTION may result in injury to the operator, or damage to the

items involved.

This indicates procedures or information that are important in a process described in this

:

NOTE

document.

WARNING

CAUTION

4. Operation

4-1. Replacing the pot

CAUTION

Turn o󰀨 the power switch and disconnect the plug from the outlet, then make sure the solder has hardened

and that the pot has cooled to a safe ambient temperature before replacing the pot.

(1)

Loosen (do not remove) the two screws securing the pot with the 2 mm hexagon wrench.

(2)

Replace the pot.

(3)

While pressing down on the pot with your hand, gradually tighten the screws evenly on both sides until the

pot is rmly secure.

NOTE Excessively tightening the screws can cause the pot to lift up or the chassis to deform.

Screw

Screw

4-2. Preparations

CAUTION

When opening and closing the solder pot cover, only use the front section of the frame (see gure A).

Other parts of the frame may be hot while in use.

●

Use the "xing support" (optional) when securing the product to table.

NOTE Prepare screws for securing the product to the edge of the table.

●

Factory default settings are as follows:
Setting temperature 350ºC

Solder type Sn-Ag-Cu
Pot size 75 × 75 square

To change the parameters, see the separate document "Quick Parameter

NOTE

Settings."

●

Attach the solder waste collector to one side of the main unit.

When attaching the solder pot cover, you cannot attach the solder waste

NOTE

collector to the back.

●

Attach the solder pot cover to the main unit.

NOTE For safety purposes, keep the solder pot cover closed when not working.

●

Set the type of solder you will use in parameter No. .

Sn-Pb
Sn-Ag-Cu
Sn-Cu
Sn
Sn-Bi

●

Set the pot size in parameter No. .

Select the type that is closest to
the solder you will be using.

A

50 × 50 mm square
75 × 75 mm square
100 × 100 mm square

Frame

A

Fixing support

(optional)

Threaded hole

Φ6.5

4. Operation

(cont'd)

4-3. Operation

CAUTION

●Keep the solder pot cover closed until the solder is fully melted.

● The solder pot cover is very hot. Do not touch anything other than the front section of the frame.

(1)

Turn the power on.

(2)

Below shows what is displayed.

(3)

Once the set temperature is reached, open the solder pot cover when ready to use.

(4)

Keep the solder pot cover closed when not in use.

Parameter

icon

Temperature

icon

Offset icon

Timer icon

Operation

button

Up

button

Down

button

Confirm

button

■Changing the temperature setting

Push

Push this button once to display [ ] and transition to "temperature setting mode."
This mode is used when changing the set temperature.

Back

button

Lock icon

Communication Communication
iconicon

Preset icon

Preset No.

Mode

Temperature

Correction mode

Temperature

Setting Mode

Pot sensor
temperature

Setting
temperature

Stop Mode

■Internal pot temperature correction (o󰀨set)

Push this button once to display [ ] and transition to "temperature correction mode." If the

Push

To correct a temperature by 5ºC for a setting of 400ºC
(to correct actual internal pot temperature reading 395ºC when set to 400ºC)

–/0

0 to 1

* Note that temperatures that exceed the correction range cannot be entered.

The internal pot temperature can change if it contains too many

impurities. The internal pot temperature changes if you replace the

pot, so the o󰀨set will need to be readjusted. Make sure to change
the o󰀨set value as needed while monitoring the actual internal pot

temperature.

You can automatically change the o󰀨set value using a HAKKO

thermometer with a temperature sending function. Push the

button before sending the measured value. (See the gure on the

right)

(ºF: 0 to 8)

setting temperature and measured value of the internal pot temperature di󰀨er in this mode, you

can correct the temperature.
(Correction range: ±100ºC/±180ºF)

Push Push Push Push Push Push

0 to 9

0 to 9

Push five times

Temperature

control begins

Normal screen

] disappears.

[

Temperature sending screen

The communication icon is
only displayed at this state.

To change to 400ºC

Normal screen

Push Push Push

Push once

Once the normal screen appears, push the button to transition to preset No. mode.

Push five times

Temperature

control begins

] and [ ]

[
disappear.

■Changing the preset No.

You can register up to ve frequently used setting temperatures on the product, and then select the
registration No. to change the setting temperature.

Push this button once to transition to "preset No. mode."

Push

The registered temperature of each preset No. can be changed in "parameter No.

NOTE

(See the separate document "Quick Parameter Settings")
If you want to limit setting temperature changes, change the setting in "parameter No.

NOTE

(See the separate document "Quick Parameter Settings")

Select one of the ve temperatures registered in this mode.

( Factory default temperature settings: P1 250ºC (600ºF), P2 300ºC (700ºF), P3 350ºC (750ºF),

P4 400ºC (800ºF), P5 450ºC (850ºF))

."

."

5. Parameter Settings

You can change the parameter settings to suit di󰀨erent work environments. See the separate document

"Quick Parameter Settings."

■Checking the drop in temperature inside the pot (Stop mode: Heating element o󰀨)

Push this button once to display the conrmation screen, then push the button to conrm.

Push

Confirmation screen Dropped to room temperature

This will turn o󰀨 the heating elements and is used to show the pot temperature cooling to a safe

level. Push the

Push

button again to turn the heaters on and return to normal operation.

Turn o󰀨 the power. Replace the pot.

Push the button once to check the "solder type" and "accumulated pot usage time" set in the parameters.

(See the separate document "Quick Parameter Settings")

Setting temperature Solder type Accumulated pot usage time

Loops for one minute until you push the button.

This is displayed if you select [ON]

in Parameter No.
Use this to estimate the pot
replacement schedule.

5,460 hours
(546 × 10 hours = 5,460)

.

7. Troubleshooting

CAUTION

Before performing an inspection or replacing parts, make sure to disconnect the power plug from the outlet.

6. Maintenance

CAUTION

Use with caution, this product get hot during use.

Conducting maintenance will help keep the product in good condition and prolong the usage of the unit.

■Daily maintenance

Wear and tear on the pot will vary due to the operating temperature as well as the quality and amount of
solder used. Maintenance should be performed based on what suits your usage.

Setting
temperature

Before
beginning
work

When pausing
work

●

Solder
Remove any oxidation or foreign matter in the molten solder using the spatula.

Using the product at a temperature that is higher than necessary can accelerate pot
deterioration and damage parts that are susceptible to heat. Use lowest temperature
whenever possible.

●

Pot

When cool, remove the pot and visually check the following:

Are there any holes in the pot?

・

Has any solder leaked onto the heat

・

Heat insulation plate

insulation plate?
Has any foreign matter collected on the heat

・

insulation plate?

Make sure to change the orientation of the pot
each time you remove it. Doing so can slow

Pot

pot deterioration.

●

Solder pot cover

Remove any solder stuck to the cover. Doing
so can prevent any solder from unintentionally
falling into the pot. Make sure to do so when
changing the solder type.

Turn o󰀨 the unit for long periods of unused time.

Connect the power cord to the main
unit.

Replace the fuse.
If the fuse is blown again, send the

No operation even if
power switch is turned
ON.

Is the power cord connected?

Is the fuse blown?

main unit back for service.

Is there any foreign matter on

Remove/clean any foreign matter.

Remove the solder and replace the pot.

[L - E] is displayed.

the heat insulation plate located
under the pot?

Is there any holes in the pot and
has solder leaked into the interior
of the main unit?

[S - E] is displayed.

The internal pot
temperature is too high/
low.

Is the heating element connected
to the board?

Is the o󰀨set value entered
correct?

Is one of the heating elements
burnt out?

Connect it to the board.

Measure and adjust the value.

(See "■ Internal pot temperature

correction (o󰀨set)" in "4-3. Operation")

If the resistance of the heating element
is abnormal, replace it.
(See "How to check the heating element
resistance")

Is the heating element connected
to the board?

Connect it to the board.

If you cannot nd a solution in this manual, or if another problem occurs, please contact the retailer

where you purchased the product.

How to check the heating element resistance

(1)

Disconnect the power plug from the outlet.

(2)

Remove the pot when it is cool.

(3)

Remove the screws and washer securing the cover.

(4)

Open the cover.

(5)

Disconnect the heating element connector from

Cover

Heating element

left side

Washer

Screw

the board.

(6)

Measure the resistance of the heating element
when it is at room temperature.
(See below for pin layout and resistance
references)

(7)

Replace the heating element if the value is
abnormal.

Normal resistance for

heating element left side

(at room temperature)

Normal resistance for

(at room temperature)

heating element right side

Heating element
right side

100 V / 110 V 8 to 13 Ω

Between pins 1 - 3 Between pins 5 - 6

220 V / 230 V / 240 V 46 to 63 Ω

129 to 191 Ω120 V 13 to 18 Ω

1 3 56

1 3

100 V / 110 V 5 to 9 Ω

120 V 9 to 12 Ω

220 V / 230 V / 240 V 31 to 42 Ω

Between pins 1 - 3