Weller WTCPT - Manual

WTCPT SOLDERING STATION
A transformer powered soldering station, complete with a lightweight,
heat insulated, low voltage, temperature controlled soldering iron.
The special Weller ® “closed loop” method of controlling maximum tip
temperature sensitive components. The soldering iron features a
stainless steel, plug in heating element construction, a non-burning
silicone rubber cord, and a large selection of tips in sizes from 1/64”
diameter to 15/64” diameter with a choice of tip temperature of
600°F, 700°F and 800°F. The soldering iron is normally provided with
a PTA7 1/16” screwdriver 700°F.
The station features a housing of an impact resistant polycarbonate
plastic for durability and protection against accidental damage, a
quick disconnect plug for the soldering iron, a lighted on-off switch,
and a flexible 3 wire power cord.
The plastic soldering iron holder can be used attached to either side
of the transformer case, or separated as shown. The iron holder
incorporates a water reservoir with wick to keep the tip wiping
sponge moist.
The station housing and hand piece are grounded with a separate conductor that terminates at the third pin on the power cord.
The Weller ® units are UL listed.
WARNING: This product, when used for soldering and similar applications, produces chemicals known to the State of
California to cause cancer and birth defects or other reproductive harm.
SPECIFICATIONS
POWER UNIT
1. Power input: 120 VAC, 60 Hz, (240VAC ±10%, 50/60 Hz) 60 watts.
2. Power unit output voltage: isolated 24 VAC @ 1.75 amperes.
3. Size: 4.5” x 5.875” x 3.625”.
4. Line Cord: 3 wire U.L. recognized.
SOLDERING IRON
1. Wattage: 42 watts.
2. Iron weight: 2 ounces
3. Recovery time (from 100°F drop) with PTA7 tip: 11 seconds.
4. Cord: Silicone rubber, burn resistant, 4 feet.
PRINCIPLE OF OPERATION
When the soldering tip is cold, a ferromagnetic temperature sensor (1) attached to the tip attracts a permanent magnet (2). The
magnet movement causes a shorting bar (4) to make contact with a set of isolated electrical contacts (3) thereby supplying
power to the heating element through the solder lugs (5). When the tip reaches its idle temperature, the sensor becomes
nonmagnetic and no longer attracts the magnet. Then a magnetic bushing (6) attracts the magnet causing the shorting bar to
break the circuit. In this manner, power to the heating element is turned on and off automatically.
CAUTION: Tip is grounded, do not solder an energized circuit.