Datasheet

has been designed to meet the present and future soldering needs of the electronic
production industry, hobbyist and students.
The LF-389D rated current has 220-240Vac, 50Hz or 100-120Vac, 60Hz for option.
Both incorporate electronic circuitry which enables the user to adjust the temperature
from 150℃(392℉) through 480℃(896℉) without changing the tip. The temperature
is maintained to within ±5℃(9℉) of its idling temperature through the use of its PTC
characteristic. LF-389D engineers the heater failed detection, if the heater circuit fails
the display will read “H-E” and will automatically cut off the heater power. Also the
temperature can be locked by “password” code that is convenient for production line
management.
The electronic “ZERO VOLTAGE“ switching protects voltage and current sensitive
components, such as “CMOS” devices, against transient voltage spikes that can be
caused by switching the power or heater on/off or other environmental conditions.
The highly insulated ceramic heating element with heater insulation exceeds 100
Mhoms. The specifically design heater brings the temperature up to approximately
565-650℃ (1050-1200℉) at full setting in about one minute. This results in very fast
heat-up, instant recovery and superior heat transmission.
The ergonomic and slender soldering iron design with a comfortable rubber grip that
prevents operator fatigue. The soldering iron is attached to the base unit using a non-
burning silicone rubber cord.
The tip is grounded through the power unit to ensure leakage of less than 0.4
milivolts, and a wide selection of long-lasting, iron clad, nickel/chrome plated and
pre-tinned tips are available to meet all your soldering needs.
OPERATING INSTRUCTIONS
Caution: Check carefully for any damage during transportation and ensure that the
working voltage matches your power supply before plugging in the station.
1. Ensure that the base unit power switch is in the “OFF” position.
2. Plug in AC power cord and turn “Mains power switch” to “ON” position then LED
display will be ON and show the temperature value.
3. Press the “▲” key up until the temperature to 250℃ (482℉) (If set to degrees
Centigrade, the temperature display window of the upper right corner shows ℃, if
set to degrees Fahrenheit, the temperature display window of the upper right corner
shows ℉). Then tin the surface of the tip by applying a new covering of solder
after being warmed to protect tip and extend its life.
4. Press the key
“▲”or “▼” to choose the desired temperature. When the
temperature reaches to the desired temperature that the heating indicator light will