Hakko Electronics 942 User manual

High - output, temperature controlled
soldering station

1
Control
card
Card chain
®
Heat resistant pad
Iron holder
Tip tray
Hakko 912
Soldering iron
Hakko 942
Soldering station
ower cord
1. PACKING LIST
Hakko 942 soldering station ........................... 1
Hakko 912 soldering iron ................................ 1
ower 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
ower consumption
Temperature range
Temperature stability
● Hakko 942 soldering s a ion
ower consumption
Tip to ground resistance
Tip to ground potential
Length, less cord
Weight, less cord
Length of cord
70 W (24 V)
< 2 Ω
< 2 mV
172 mm with 2.4D tip
30 g with 2.4D tip
1.2 m
● Hakko 912 soldering iron
Output
Dimensions
(l × w × h)
Weight
24 V
188 × 100 × 106 mm
2,500 g
● S a ion
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.

3. WARNINGS, CAUTIONS, NOTES AND EXAMPLES
Warnings, cau ions and no es are placed a cri ical poin s in his manual o direc he
opera or’s a en ion o significan i ems. 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 EXAM LE is given to demonstrate a particular procedure, point or
process.
2
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 942.
CAUTION
To prevent accidents or damage to the Hakko 942, be sure to observe the following:
●Do not use the Hakko 942 for applications other than soldering.
●Do not allow the Hakko 942 to become wet, or use it when hands are wet.
●Do not modify the Hakko 942.
●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 942 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 942.

4. PART NAMES
Tip tray
OFF ON
®
Heat resistant pad
Iron holder
Cleaning
sponge
Tip (not included) Hakko 912
Soldering iron
ower cord
Fuse
ower receptacle
Station
ower switch
Receptacle
Control card
Card chain
3

NOTE:
Be sure the cleaning sponge is kept CLEAN and DAM .
A dirty sponge will transfer contaminants to the soldering
tip, reducing thermal ef ficiency and possibly causing
defective solder joints. A dry sponge will abrade the
soldering tip, reducing its life.
3
2
4
B. Handpiece
1. Insert the tip fully into the handpiece (Hakko
912).
There are no orientation requirements.
2. ass the iron cord through the hole in the
heat resistant pad.
1
2
4
1
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.
2. ut 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.
rocedure 2-4 – OR –
Wet the only large cleaning sponge, squeeze
it dry , and put it on the iron holder base.
5. lace the spare tips in the tip tray .

C. Soldering s a ion
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. lug the power cord into a grounded wall
socket. The Hakko 942 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.
5

6. OPERATION
Con rols and displays
Con rols
UP
DOWN
The front panel of the Hakko 942 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 .
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.
CAUTION:
lace the iron in the iron holder when not in use. CAUTION:
The Hakko 942 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.
Displays
The Hakko 942 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:
1. The station has reached the set tempera-
ture. The buzzer will sound once.
2. The low temperature threshold has been
crossed. This buzzer will shutoff when the
sensed temperature returns to the
acceptable range.
3.A failure has occurred in the sensor or heater
(including the sensor circuit). The buzzer will
sound continuously.
4.The auto power shutoff is activated and the
power to the heating element is shutoff, the
buzzer will sound three times.
Heater lamp
UP
DOWN
6

English
●Fac ory se ings
The Hakko 942 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°C
4 0
350°C
●Con rol card Each Hakko 942 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
942 card can be used with any Hakko 942
soldering station.
Using he con rol card
The control card is used when a value is to be
changed or data are to be entered. The Hakko
942 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 he empera ure
se ing
Example: 350 to 400 ° C
1. Inser he con rol card in o he slo in he
fron of he uni .
• The hundreds digit will begin to flash,
indicating that the unit is in the TEM-
ERATURE SET mode and data may be
entered.
2. En ering he hundreds digi
• ress the or button to set the
desired figure. Only 2, 3, or 4 can be
selec ed. (In °F mode, 4, 5, 6, 7, or 8 can
be selec ed).
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 of f while you are setting the tem-
perature.
ress the button once.
Insert the card.
ress the or button.
7

NOTE:
If power is switched of f or lost during the execution of this
procedure, no data will be entered. The entire procedure
must be repeated from step 1.
ress the button once.
ress the button once.
ress the or button.
When he s a ion is ON and he
card is in he s a ion, he da a en ry
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 he ip
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 912. 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. En ering he tens digi
• ress the or button to set the
desired figure. Any value from 0 o 9 can
be selec ed. When the desired figure is
displayed, press the button to enter .
The units digit will begin to flash.
4. En ering he units digi
• ress 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.
8

7. ENTERING TIP OFFSET VALUES
Soldering tips have diferent 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’. The
offset value may be entered into the station to either add to or subtract from the set value, thus
producing the desired tip temperature.
The Hakko 942 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 942.
1.Inser he con rol card in o he slo in he
s a ion.
•The station will default to the temperature
setting mode. Set the temperature at
400°C (750°F).
2.Press he bu on on he fron panel
and hold for one second.
•This will set the station to the data entry
mode. The existing offset will be displayed.
3.Measure he ip empera ure.
4.En er he offse 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.
•When entering the hundred dig it, press the
or buttons to select either positive
(0 is displayed) or negative (– is displayed)
sign for the offset to be entered.
●How o en er he ip offse value in o he Hakko 942
This method requires measuring the tip temperatures with a tip thermometer and is recommended
for the most accurate process control.
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
dif ference 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 dif ference between
the set temperature is –5 °C (–10°F) (the tip is five
(ten) degrees too hot) and the offset is –5°C (–10°F).
9
ress the button and
hold for one second.
Insert the card.
Default to the
temperature
setting mode
Using the procedure ( 7),
set the temperature at 400°C
ress the button once.
ress the button once.
ress the button once.
(When he offse is +5.)
ress the or button.