Weller WSD 151 Operating Instructions Manual Download

Page: 21 / 70

Maintenance
The transition between the heating element / sensor and
the tip of the soldering iron may not come in contact with
dirt, foreign particles or become damaged, since this
affects the precision of the temperature control.

4. Equipotential bonding

The various circuit elements of the 3.5 mm jack bush (6)
make 4 variations possible:

Hard-grounded:
No plug (delivery form)

Equipotential bonding (impedance 0 ohms):
With plug, equalizer at center contact

Potential free:
With plug

Soft-grounded:
With plug and soldered resistance.Grounding via set
resistance value.

5. Instructions for use

For initial heating, coat the selective tinnable tip with sol-
der. This removes any oxidation or dirt on the tip which
may have occurred during storage. During pauses bet-
ween soldering and before storing the soldering iron,
ensure that the tip of the soldering iron is well coated. Do
not use aggressive fluxing agents.

Note: Always ensure the proper position of the solde-
ring iron tip.

These soldering irons have been adjusted for an average-
size tip. Deviations can occur due to exchanging of the
tip or using other tip designs.

External input unit WCB 2 (optional)

The following functions are possible when using an
external input unit.

Offset:
The real temperature of the soldering iron can be chan-
ged by ± 40°C by input of a temperature offset.

Setback:
Reduction of the setpoint temperature to 150°C (stand-
by). The setback time can be set at 0 - 99 minutes after
the soldering station has switched to standby mode.
After a period equal to three times the set-back time,
the ”Auto Off” function is activated. The soldering iron

English

since the temperature is reached again
quickly.

WSP 150:

Special 150 W soldering iron for solde
ring tasks with an extremely high heat
requirement. Easy to use shape combi
ned with high performance capability.
Fast warm-up time and precise tempera
ture regulation characterise the soldering
irons in this power range.

See "Accessories" for additional tools.

3. Starting

Assemble soldering iron rest (see exploded
drawing).Place the soldering iron in the safety rest.
Insert the soldering iron plug into the connection bush
(6) of the control unit and lock by turning to the right.
Check that the power supply corresponds to the specifi-
cations on the name plate and that the power switch (1)
is in the OFF position. On version that can be switched,
set the voltage on the selection switch (set in the factory
to 240 V). On version that can be switched, set the vol-
tage on switch (10) and insert the appropriate fuse (9).
Connect the control unit to the power supply. Switch on
the unit at the power switch (1). When switching on the
unit, a self-test is carried out in which all display ele-
ments (2) are switched on briefly. The electronic system
then switches automatically to the actual temperature
and displays this value. LED (5) illuminates. These light
emitting diodes are optical regulator monitors. Constant
illumination means that the system is heating up. The
blinking light signals that the operating temperature has
been reached.

Setting the temperature
The digital display (2) shows the actual value temperatu-
re. By pressing the UP or DOWN key (3, 4) the digital
display (2) switches to the setpoint. The setpoint can be
changed by tapping or by firmly pressing the UP or
DOWN button (3, 4) in the desired direction. Pressing the
button will change the setpoint quickly. The digital
display (2) returns automatically to the actual value
approximately 2 seconds after releasing the button.

Standard setback:
Setting back the set temperature to 150°C. The setback
time, which follows the switching of the soldering station
to standby mode, is 20 minutes. After three setback
times (60 minutes) the ”Auto-off” function is activated.
The soldering tool is switched off (blinking line on the
display).
Setting: When switching on, hold the ”UP” key (3) until
ON or OFF appears in the display. Repeat this step to
change.