Equipotential Bonding; Instruction For Use; External Input Unit Wcb - Weller WSD 121 Betriebsanleitung

English
Setting the temperature
The digital display (2) shows the actual value temperature.
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.
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:
resistance value.
5. Instructions for use
For initial heating, coat the selective tinnable tip with solder.
This removes any oxidation or dirt on the tip which may have
occurred during storage. During pauses between soldering
and before storing the soldering iron, ensure that the tip of
the soldering iron is well coated. Do not use aggressive
fluxing agents.
5
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
Note:
Always ensure the proper position of the soldering 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.

6. 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 changed
by ± 40°C by input of a temperature offset.
Setback:
Reduction of the setpoint temperature to 150°C (standby).
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 is
switched off (flashing dash on the display).
Lock:
Locking the setpoint temperature. Settings cannot be
changed after the soldering station has been locked.
°C/°F:
Switching the temperature display from °C to °F, and vice
versa.
Window:
Limitation of the temperature range to max. ± 99°C based
on a locked temperature resulting from the "LOCK"
function. The locked temperature represents the median
point of the adjustable temperature range.
Cal:
Re-adjustment of the soldering station (WCB 2 only).
PC interface:
RS232 (WCB 2 only).
Temp. gauge:
Integrated temperature gauge for thermal element Type K
(WCB 2 only).