Equipotential Bonding; Information For Operation - Weller WMD 1S Manuel D'utilisation

increased or decreased by pressing the „Up" or „Down" button (4) (7) respectively. If the
button is continuously pressed, the adjustment is fast. Approx. 2 sec. after releasing the
button, the display (2) automatically switches back to showing the actual temperature.
Dependent on the system, when using the hot-air pencil only the set value is displayed.
Air-setting
By permanently pressing the „Air" button (8) the display switches to air-volume. The air
throughput can then be altered gradually from 1 l/min-10 l/min by pressing the „Up" or
„Down" buttons (4) (7). If the buttons are continuously pressed, the adjustment is fast.
Offset / Setback Adjustment (Temperature Compensation / Temperature Reduction)
Switch off unit. Keep „UP" button pressed during switch on until the self-test has been
completed. Release button. The offset value currently set appears on the display to the right
of the digital point. When the „Air" button is pressed the display to the left of the digital point
changes to the setback value. These values can be changed using the „UP" or „DOWN"
button.
To save the value set, keep the „AIR" button pressed until the display flashes.
Maintenance
When using the hot-air pencil:
Contaminated filters influence the air throughput of the pump. Therefore the main filters for
„vacuum" (9) and „air" (10) should be inspected regularly and changed when necessary. To
do this, unscrew the filter cover, remove the contaminated filter and replace with a new
original Weller filter cartridge. Make sure that the filter-cover seal is correctly in place, insert
the compression spring, and screw the filter cover back on firmly.
When using the desolder:
Desoldering bit, heating element and sensor make up a single unit which is highly efficient.
The desolderer should be cleaned regularly. This involves emptying the solder collector,
changing the glass tube filter and checking the seals. A perfect seal of the face of the glass
cylinder gives full section power. Contaminated filters influence the air throughput of the
pump. Therefore the main filters for „vacuum" (9) and „air" (10) should be inspected regularly
and changed when necessary. To do this, unscrew the filter cover, remove the contaminated
filter and replace with a new original Weller filter cartridge. Make sure that the filter cover
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seal is correctly in place, insert the compression spring, and screw the filter cover back on
firmly. The „vacuum" filter removes flux vapours from the extracted air and must therefore
be regularly inspected.
Attention: Working without the filter destroys the vacuum pump.
Use the cleaning tool (0051350099) to clean the suction nozzle opening and the suction
tube.
The suction nozzles can be replaced quickly and easily with a short turning movement (approx.
45°).
Large deposits in the area of the cone will prevent the insertion of a new suction nozzle.
Deposits can be removed with the cleaning insert for the heating element cone.
Figures of the cleaning tools, cleaning procedure and exchange of the suction nozzles
see page 63.

3. Equipotential bonding

The various circuit elements of the 3,5 mm jack bush make 4 variations possible:
Hard-grounded: No plug (delivery form)
Equipotential bonding: With plug, equalizer at center contact (impedance 0 ohms)
Potential free: With plug
Soft-grounded: With plug and soldered resistance. Grounding with set
resistance value.

4. Information for Operation

Hot-air pencil:
The nozzles are screwed onto the heating element. To change the nozzles use the socket
spanner SW 8 and a wrench.
Attention: The thread length is at most 5 mm. A longer thread destroys the
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