Weller WHP-300 User manual

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Operating Instructions
Weller Model WHP-300 Hot-Plate Solderer De-Solderer
Description
The Preheating and Reflow System WHP 300 is eminently suitable for soldering and
unsoldering tasks in hybrid technology. This device brings the carrier material to the working
temperature for perfect soldering operations without causing any thermal damage to the base
material. The Heating Plate HP 300 is electrically isolated from the power supply mains and
operates with safe low voltage of 27 V AC. The heated area of 100 x 160 mm (European
format) is heated uniformly. Temperature regulation is performed by analogue means. The
desired temperature can be set continuously with a rotary potentiometer control over the
range from 50°C to 300°C. The set point temperature and the actual temperature are displayed
in digital form. The digital temperature indicator can be switched to the desired display mode
(set point or actual value) with a sliding switch. The digital display also contains a luminous
spot for visually checking the action of the temperature controller. As option, a facility is
available for controlling the temperature with an external sensor directly on the heated
component. Switchover to the external sensor takes place automatically when plugging-in the
6.35 mm jack plug on the front of the unit. The case is coated with a permanent electrically
conducting lacquer. A ground potential equalisation connection can be made if required via
the 3.5 mm switching jack-plug socket on the rear of the unit. The mains primary circuit of the
unit is equipped with a resetable current overload cut-out device. This current overload cut-
out device can be reset by pressing the red button after clearing the cause of the current
overload fault.

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Technical Data
Dimensions: Controller Unit WHP 300 W x D x H: 145 x 270 x 102
Heating Plate HP 300 L x W x H: 220 x 160 x 45
Mains voltage: 230 V AC
Heater voltage: 27 V
Power consumption: 300 W
Protection: 1.5 A current overload cut-out device
Accuracy: Temperature control tolerance
+1-2% of scale end value
1. Commissioning
Connect the heating plate via the 5-pole flat plug connector to the
controller unit.
Warning: Make sure that there are no combustible objects in the vicinity
of the heating plate.
Check that the mains voltage corresponds to the nominal value stated on
the type specification label. When you are sure that the mains voltage is
correct, connect the controller unit to the mains voltage. The changeover
switch for set point I actual temperature display should be set to "SET
POINT". Switch-on the control unit at its mains switch and set the
desired
temperature on the rotary potentiometer control. The red spot to the
right of the display digits lights up. This red spot indicates the
temperature controller action. Continuous illumination means that the
actual temperature is below the set point temperature, that is the system
is heating-up. Flashing of the red spot means that the actual temperature
agrees with the set point temperature, that is the system is now
operating in the controlled temperature mode. When the red spot is not
lit, this means that the actual temperature lies above the set point
temperature. Move the changeover switch to the setting "ACTUAL". The
digital display now reads the actual temperature of the heating plate.
Equi-potential 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

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Soft-grounded: With plug and soldered resistance. Grounding with set
resistance value.
Notes on Use
The good thermal insulation of the Heating Plate HP 300 with respect to
the exterior makes it suitable for recessed table mounting.
Warning: Danger of skin burns! Use a suitable covering device as a
safeguard against burns. Ensure adequate circulation of air from below
when operating the heating plate in recessed table installation.
When preheating ceramic carrier material it is advisable to use a thin
Teflon or Capton intermediate layer on the heating plate to prevent
return of soldering heat to the heating plate.
Safety Instructions
The manufacturer cannot take over any responsibility or liability for
damage or injury caused by unauthorised tampering or by usage deviating
from the proper usage as described in the operating instructions.
These operating instructions and the warnings contained therein must be
read attentively and placed clearly visible in the vicinity of the
soldering device. Failure to observe the warnings can lead to accidents
and injuries or damage to health.
The WELLER Controller Unit WHP 300 with heating plate complies with the
EC Conformity Declaration according to the basic safety stipulations of
the directives 89/336/EEC, 73/23/ EEC.
Accessories
533 161 99 Hand support 490 x 340 mm
587 017 23 External Sensor
Scope of supply
HP 300 Heating Plate L x W x H: 220 x 160 x 45
Controller Unit WHP 300
Mains Cable
Operating Instructions
Warnings (The Controller Unit WHP 300 with heating plate is referred to as the soldering tool in
the following warning texts).
1. Keep your work area in proper order.

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Always return the soldering tool to its original holder when not in use.
Do not bring combustible materials near the hot soldering tools.
2. Take care for the surroundings.
Don't use the soldering tool in a moist or wet environment.
3. Protect yourself against electrical shocks.
Avoid touching grounded parts with your body, e.g. pipes, heating
radiators, stoves, refrigerators.
4. Keep children at a distance.
Don't allow other persons to touch or disturb the soldering tool or cord.
Keep other persons away from your work area.
5. Store your soldering tool in an appropriate place
Unused soldering tools should be stored in a dry location which is out of
the reach of children (some place high or in a locked cabinet). Switch
off all unused soldering tools.
6. Do not overload your soldering tool.
Use the soldering tool only with the specified voltage or specified
pressure and pressure range.
7. Use the appropriate soldering tool.
Don't use a soldering tool whose performance is not adequate for your
work. Never use the soldering tool for purposes for which is was not
designed.
8. Wear suitable work cloths.
There is a danger of burning yourself with liquid solder. Wear the
corresponding protective clothing in order to protect yourself against
burns.
9. Protect your eyes.
Wear protective eyewear. When working with bonding agents, it is
particularly important to observe the warning notices of the bonding
agent manufacturer. Protect yourself against spattering solder. There is
a danger of burning yourself with liquid solder.
10. Use a soldering vapour suction device
If devices for solder vapour suction are available, ensure that these are
connected and correctly used.
11. Do not use the cord for purposes for which it is not designed.
Never carry the soldering tool by the cord. Don't use the cord to pull
the power plug from the socket. Protect the cord from heat, oil, and
sharp edges.
NOTE – This manual was compiled from an OCR of the original Weller Manual
005-56-912-04/6.00 BB 0,3 Copyright by Cooper Tools GmbH, Germany with
images produced by CASA

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The document is also saved as a PDF file (with the makers original data
sheet attached) to conserve file size.