Hakko Electronics 941 Manuale utente

TABLE OF CONTENTS

1. PACKING LIST ................................................................ 1

2. SPECIFICATIONS........................................................... 1

3. WARNINGS, CAUTIONS, NOTES AND EXAMPLES ...... 2

4. PART NAMES ................................................................. 3

5. INITIAL SETUP ............................................................... 3

6. OPERATION ................................................................... 5

7. ENTERING TIP OFFSET VALUES ................................. 8

8. PARAMETER SETTINGS ............................................. 10

9. MAINTENANCE ............................................................ 12

10. ERROR MESSAGES .................................................... 14

11. TROUBLE SHOOTING GUIDE ..................................... 15

12. PARTS LIST .................................................................. 16

13. TIP STYLES .................................................................. 18

14. WIRING DIAGRAM ....................................................... 19

High-output, temperature controlled

compact soldering station

Instruction Manual

●

Thank you for purchasing the Hakko 941 soldering station.

This high-output, temperature controlled compact soldering

station uses a composite tip, incorporating heater and sensor

functions into one element. Several process control features,

unique to the Hakko 941, make it applicable to a broad range

of soldering applications.

Please read this manual before operating the Hakko 941. Keep

this manual readily accessible for reference.

●

Heat resistant pad

Iron holder

Tip tray

Hakko 911

Soldering iron

Hakko 941

Soldering station

Power cord

Control

card

Card chain

1. PACKING LIST

Hakko 941 soldering station ........................... 1

Hakko 911 soldering iron................................ 1

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

Control card .................................................... 1

Heat resistant pad .......................................... 1

Iron holder ...................................................... 1

Tip tray ........................................................... 1

Cleaning sponge ............................................ 1

Instruction manual .......................................... 1

Card chain ...................................................... 1

Tips (not included)

2. SPECIFICATIONS

Power consumption

Temperature range

Temperature stability

50 W. total

200

– 450

C. (400

– 840

F. )

±2.5

C. (±5

F.) at idle temperature

See Figure 1.

•

Hakko 941 soldering station

Power consumption

Tip to ground resistance

Tip to ground potential

Length, less cord

Weight, less cord

Length of cord

45 W. (15 V.)

< 2

< 2 mV.

172 mm. (6.8 in.) with 2.4D tip

30 g. (0.067 lb./1.07 oz.)

with 2.4D tip

1.2 m. (4 ft.)

•

Hakko 911 soldering iron

Output

Dimensions

(l × w × h)

Weight

15 V., 3 A.

145 × 85 × 108 mm.

(5.7 × 3.3 × 4.3 in.)

1,300 g. (2.9 lb.)

•

Station

Set temperature

Stability: ±2.5

C. (±5

F).

Temperature

Time

Figure 1. Temperature stability

NOTE:

The temperatures were measured using the Hakko 191

thermometer.

This product is protected against electrostatic discharge.

Specifications and design are subject to change without notice.

WARNINGS, CAUTIONS, NOTES AND EXAMPLES

Warnings, cautions and notes are placed at critical points in this manual to direct the

operator’s attention to significant items. They are defined as follows:

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

death.

CAUTION: Failure to comply with a CAUTION may result in injury to the

operator, or damage to the items involved. Two examples are given

below.

NOTE: A NOTE indicates a procedure or point that is important to the process being

described.

EXAMPLE: An EXAMPLE is given to demonstrate a particular procedure, point or

process.

CAUTION

When power is ON, tip temperatures will be between 200° and 450°C. (392° to 840°F.)

To avoid injury or damage to personnel and items in the work area, observe the

following:

●Do not touch the tip or the metal parts near the tip.

●Do not allow the tip to come close to, or touch, flammable materials.

●Inform others in the area that the unit is hot and should not be touched.

●Turn the power off when not in use, or left unattended.

●Turn the power off when changing parts or storing the Hakko 941.

CAUTION

To prevent accidents or damage to the Hakko 941, be sure to observe the following:

●Do not use the Hakko 941 for applications other than soldering.

●Do not allow the Hakko 941 to become wet, or use it when hands are wet.

●Do not modify the Hakko 941.

●Use only genuine Hakko replacement parts.

●Do not bend or damage the control card. If the card does become damaged, do not force the

card into the station slot.

●Do not strike the iron against hard objects to remove excess solder. This will damage the

iron.

●Remove power and iron cords by holding the plug – not the wires.

●Be sure the work area is well ventilated. Soldering produces smoke.

●The Hakko 941 is not intended for use by children or infirm persons without supervision.

●Children should be supervised to ensure that they do not play with the Hakko 941.

Note: The model Hakko 941 station is not available for sale or use in the United States.

4. PART NAMES

5. INITIAL SETUP

A. Iron holder

1. Adjust the height of the iron holder to suit, as

follows:

i. Loosen the adjusting screws.

ii. Set the iron holder to the desired height.

iii. Tighten the screws.

Heat resistant pad

Iron holder

Cleaning

sponge

Tip (not included) Hakko 911

Soldering iron

Power cord

Fuse

Power receptacle

Station

Power switch

Receptacle

Control card

Card chain

OFFON

Tip tray

NOTE:

Be sure the cleaning sponge is kept CLEAN and DAMP.

A dirty sponge will transfer contaminants to the soldering

tip, reducing thermal efficiency and possibly causing

defective solder joints. A dry sponge will abrade the

soldering tip, reducing its life.

B. Handpiece

1. Insert the tip fully into the handpiece (Hakko

911).

There are no orientation requirements.

2. Pass the iron cord through the hole in the

heat resistant pad.

2. Put the small cleaning sponge in one of the

four holes in the iron holder base.

3. Add water to the level shown in the ac-

companying illustration. The small sponge

will keep the large sponge moist through

capillary action.

4. Wet the large cleaning sponge, squeeze it

dry, and put it on the iron holder base.

Procedure 2-4 – OR –

Wet the large cleaning sponge, squeeze it

dry, and put it on the iron holder base.

5. Place the spare tips in the tip tray.

C. Soldering station

1. Insert the power cord into the receptacle at

the back of the station.

Insert the soldering iron cord into the

receptacle at the front of the station.

2. Set the iron in the iron holder.

3. Plug the power cord into a grounded wall

socket. The Hakko 941 is protected against

electrostatic discharge and must be

grounded for full efficiency.

To remove the cord,

draw the plug from

the receptacle while

pressing the release pin.

Receptacle

When the plug ‘clicks’,

it is fully inserted.

CAUTION:

Be sure the power switch is OFF before connecting or

disconnecting the soldering iron cord. Failure to do so

may result in damage to the circuit board.

6. OPERATION

Controls and displays

Controls

DOWN

The front panel of the Hakko 941 soldering

station has the following controls:

• A power on/off switch.

• Four control buttons:

– Initiates a data entry mode.

– End of sequence signal (terminates a

phase of a data entry mode); when

pressed for less than one second,

displays settings already stored.

– increases the value in the appropriate

display window.

– decreases the value in the appropriate

display window.

Displays

The Hakko 941 has a three-digit display

element. Depending upon the selected mode, it

will display:

• Normal mode:

Sensor temperature (tip temperature)

• Data entry:

Selected quantity (see ‘data entry procedures’

for exact characteristics)

• Temperature scale:

°C or °F, depending upon selection

• Error detection:

Refer to ‘ERROR MESSAGES’ section

In addition, a single heater lamp will flash when

the station has reached the desired temperature,

indicating that it is ready for use.

An audible buzzer is provided to alert the

operator when:

• The station has reached the set temperature.

The buzzer will sound once.

• The low temperature threshold has been

crossed. This buzzer will shutoff when the

sensed temperature returns to the acceptable

range.

• A failure has occurred in the sensor or heater

(including the sensor circuit). The buzzer will

sound continuously.

• The auto power shutoff is activated and the

power to the heating element is shutoff, the

buzzer will sound three times.

1. Turn the power switch ON.

2. Once the temperature is reached, the buzzer

sounds. The heater lamp at the lower right of

the temperature display starts

blinking.

3. If the offset value is not 0°C./0°F., enter the

tip offset value following the instructions on

page 8.

Heater lamp

DOWN

CAUTION:

Place the iron in the iron holder when not in use.

CAUTION:

The Hakko 941 is preset at 350°C. at the factory.

Check the temperature setting by pressing the

button.

The set temperature will be displayed for two seconds.

●●

●Factory settings

The Hakko 941 comes from the factory with the

following values preset:

Temperature scale

Auto power shutoff

Low temperature alarm setting

Resetting the supervisor/

operator control setting

Set temperature

Celsius

disabled

150

4 0

350

●●

●Control card Each Hakko 941 comes with a small card, which

inserts in the control slot in the front of the unit.

This card is used when entering data for the

process control functions. Any Hakko 941 card

can be used with any Hakko 941 soldering

station.

Using the control card

The control card is used when a value is to be

changed or data are to be entered. The Hakko

941 will operate normally with the card inserted.

If power is turned on with the card inserted, the

station will heat to the temperature set before

the card was inserted.

●●

●Changing the temperature

setting

Example: 350° to 400°

1. Insert the control card into the slot in the

front of the unit.

• The hundreds digit will begin to flash,

indicating that the unit is in the TEM-

PERATURE SET mode and data may be

entered.

2. Entering the hundreds digit

• Press the or button to set the

desired figure. Only 2, 3, or 4 can be

selected. (In °F mode, 4, 5, 6, 7, or 8 can

be selected).

When the desired figure is displayed,

press the button to enter. The tens digit

will begin to flash.

CAUTION:

The card must be inserted into the card slot in the correct

direction. The heater is off while you are setting the tem-

perature.

Press the button once.

Insert the card.

Press the or button.

NOTE:

If power is switched off or lost during the execution of this

procedure, no data will be entered. The entire procedure

must be repeated from step 1.

Press the button once.

Press the or button.

When the station is ON and the

card is in the station, the data entry

procedure follows:

a. Hold the button down for at least one

second.

b. The current temperature setting will be

displayed, then the hundreds digit will begin to

flash. This indicates that the station has

entered the temperature setting mode.

c. Continue with the procedure of 1-4, above.

NOTE:

When the button is pressed for less than one second,

the current temperature setting is displayed.

●●

●Replacing the tip

a. Always turn the power OFF when removing

or inserting a tip.

b. Hold the tip with the heat resistant pad and

pull it out.

c. Insert the new tip fully into the Hakko 911. If

the tip is not fully inserted, the display will

show a sensor error when power is

turned on.

CAUTION:

The tip will be HOT! Use the heat resistant pad to remove

it. Do not hold the tip with the heat resistant pad for an

extended time.

3. Entering the tens digit

• Press the or button to set the

desired figure. Any value from 0 to 9 can

be selected. When the desired figure is

displayed, press the button to enter.

The units digit will begin to flash.

4. Entering the units digit

• Press the or button to set the

desired figure. When the desired figure is

displayed, press the button to enter.

The desired temperature is now entered

into the system memory and heater control

will begin.

7. ENTERING TIP OFFSET VALUES

Soldering tips have different thermal characteristics, depending upon their mass, shape, and surface

area. It is obvious that the tip temperature at idle will not be the same for a fine tip as it will be for a

heavy chisel tip, although the set temperature may be the same for each tip. The difference between

the set temperature and the temperature measured at the tip is called ‘Tip Temperature Offset’. Each

Hakko 941 tip style has a specified offset value, which may be entered into the station to either add to

or subtract from the set value, thus producing the desired tip temperature. Please refer to the tip styles

and offset values on the separate sheet.

The Hakko 941 has the ability to electronically compensate for the variations due to tip temperature

offset. When a soldering tip is changed, the proper offset temperature value should be programmed

into the 941.

There are two methods for programming this function:

Method 1: Using the manufacturer’s predetermined offset value.

Method 2: Using a tip temperature thermometer to measure the actual tip temperature.

1. Insert the control card into the slot in the

station.

• The station will default to the temperature

setting mode. Set the temperature at

400°C. (750°F.).

2. Press the button on the front panel

and hold for one second.

• The station will sequence to the tip temper-

ature offset data entry mode, and the

hundreds digit will blink 0 or –.

3. Entering the hundreds digit

• Refer to the Tip Styles and Offset Values

on the separate sheet. The offset value is

indicated below the tip part number.

Record this value for reference.

• Press the or buttons to select

either positive (0 is displayed) or negative

(– is displayed) sign for the offset to be

entered.

• Press the button. The tens digit will

flash, indicating that the value can be

changed (data may be entered).

4. Entering the tens digit

• Press the or button to enter the

tens place digit of the offset value being

entered. If the value displayed is correct,

go to the next step.

●●

●Method 1. How to enter the tip offset value into the Hakko 941

(Example) When the offset value is –10°C.

Press the button for at least one second.

Insert the card and

set the temperature at 400˚C.

Press the or button.

Press the button once.

• Press the button. The units digit will

flash, indicating that the value can be

changed (data may be entered).

5. Entering the unit digit

• Press the or button to enter the

units place digit of the offset value being

entered. Press the button.The tip offset

data are entered into memory, the station

switches to normal operation, and temper-

ature will be controlled using the entered

value.

NOTE:

The allowable ranges for offset values are: –50° to

+50°C.; –90° to +90°F. If a value outside these ranges is

entered, the hundreds digit will blink, indicating that the

system has reverted to the beginning of the mode and

the procedure must be repeated from the beginning.

1. Insert the control card into the slot in the

station.

• The station will default to the temperature

setting mode. Set the temperature at

400°C. (750°F.).

2. Press the button on the front panel

and hold for one second.

• This will set the station to the data entry

mode. The existing offset will be displayed.

3. Measure the tip temperature.

4. Enter the offset value

• Determine the difference, if any, between

400°C. (750°F.) and the measured tip

temperature. Record this value. See the

example following to determine what value

to enter as the offset for that particular tip.

• Enter the actual offset value into system

memory by following the procedure given

for Method 1, above.

●●

●Method 2. How to enter the tip offset value into the Hakko 941

This method requires measuring the tip temperatures with a tip thermometer and is recommended

for the most accurate process control.

Press the button once.

NOTE:

Allow the tip temperature to become stable. During offset

data entry mode, the tip temperature is controlled using

an offset value of 0. The flashing value displayed is not

meaningful.

EXAMPLE:

If the measured temperature is 395°C. (740°F.), the

difference between the set temperature is +5°C. (+10°F.)

(the tip is five (ten) degrees too cool) and the offset is

thus +5°C. (+10°F.). If the measured temperature is

405°C./760°F., the difference between the set temper-

ature is –5°C. (–10°F.) (the tip is five (ten) degrees too

hot) and the offset is –5°C. (–10°F.).

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