15
ROLLER TINNED
LACQUERED
SOLDER MASK COATED
WAVE SOLDERED
LEFT AS BARE COPPER or
'TOUCHED UP' USING A SOLDERING IRON
23
If you experience any process problems, please refer to RECOMMENDED
SETTINGS on page 23.
If the machine is fitted with version 5.0 or later software, this shows for a moment when first
switching on. It incorporates a user adjustable weld threshold. This function allows the user
to vary the weld limit voltage to suit differing types of PCB, flexibles etc.
THRESHOLD SETTINGS
To enter this mode simultaneously press Current and Time pushbuttons, the Current and
Time LED's adjacent to the buttons will both be illuminated.
A number between 0 and 250 will be displayed, the default power up setting for this number
is 70. This has proved to be an average setting and the machine will usually be set at this
value.
The threshold should be left at 70 until you have some experience with various welds and
different materials.
If it has been necessary to deviate from this number then the new value will be in the
memory. The factory settings are obtainable by pressing Current and Time together.
An operator welding flexible circuits, for example, may require a less aggressive weld, in
which case he would set a lower Threshold Voltage setting e.g. 68. The setting for that
particular job should be stored in the normal manner.
NOTE:
If a different Threshold Voltage has been set the setting will be retained even if
the power is switched off. When the machine is next switched on it will
remember all of its last settings and default to these values.
If a memory store is Recalled, all the settings will be as stored previously, including the
Threshold Voltage.
Approximate welding settings with threshold
Cu40 (0.004”) 0.10mm Time 3.40 Amps 80 Threshold 70
Cu60 (0.006”) 0.15mm Time 3.40 Amps 100 Threshold 70
Cu80 (0.008”) 0.20mm Time 3.40 Amps 130 Threshold 70
Cu10 (0.010”) 0.25mm Time 3.40 Amps 160 Threshold 70
Cu12 (0.012”) 0.30mm Time 3.40 Amps 180 Threshold 70
