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number as “010”, the unit will enter the modes selection procedure, otherwise, the 
unit will be back from the current mode automatically.     
 

2.

 

After the unit enters the Modes selection, the LED will display “F-0”and flash. 

Press “▲”or “▼” key to select modes. If the user doesn’t press “▲” or “▼” key 
within 15 seconds or press “SET” key one time, then the unit will be immediately 
back from the Parameter Set status.   

 

For example:   F-0 → F-1 → F-2 → F-3   

                                ↑                                      ↓ 
                                ←        ←        ←        ← 
 

3.

 

Password Setting:   
When the LED displays “F-1” and flashes, press “SET” key one time and the unit 
enters the Password Set status. At this moment, the LED displays the pre-set value. 
Press “▲” or “▼” key to change password set value. If the user sets “000” that 
means the unit will be under the status of no password. If the user sets “100” then 
means the unit will be under the password status. Press “SET” key once to finish 
password setting and the unit will backup mode, the user can continue set other 
modes or back from the setting mode.   

 

4.

 

Temperature Correction Setting   
Press “SET” key once when the LED displays “F-2” and flashes that the unit enters 
the Temperature Correction Mode. At this moment, the LED displays preset 
correction value.   

A: Operation of    Centigrade temperature correction

(Range +99℃~-99℃)

 

Press “▲” or “▼” key to change the temperature correction value.The first digit 
“— ” in LED display means minus (actual temperature is down), “No display” 
means plus (actual temperature is up).   

 

Example for temperature correction: 
The current set temperature value is 300

℃,

 however, the actual temperature is only 

290

. So it needs to correct by +10

. Correction method: if the current correction 

value is 00 or -00; then change it to 10. If the current correction value is -20, then 
change it to -10. If the current correction value is 20, then change it to 30. 
 

5.

 

Sleep Mode Set   

Press “SET” key one time when the LED displays “F-3” and flashes, the unit enters 
the Sleep mode status. At this moment, the LED displays the pre-set value. Press 
“▲” or “▼” key to change the set value. If set value reads “000” that means the unit 
set in “Sleep” mode releasing status. If the display read “100” that means the unit 
set in “Sleep” mode. Press “SET” key once to finish the sleep mode setting, then the 
unit automatically backup. The user may continue set other modes or back from 
current set mode.   

Summary of Contents for LF-3500

Page 1: ...INSTRUCTION MANUAL FOR LF 3500 High Frequency Soldering Station...

Page 2: ...ating element or the metal parts near the tip Do not allow the tip to come close to or touch flammabe materials Inform others in the area that the unit is hot and should not be touched Turn the power...

Page 3: ...current and transient voltage spikes commonly produced by less efficient mechanically switched stations DETACHABLE AC POWER CORD WITH PLUG Engineered AC outlet for alternating AC power cord with plug...

Page 4: ...onents CMOS devices etc against damaging current and transient voltage spikes commonly produced by less efficient mechanically switched stations The power unit is isolated from the A C line by a trans...

Page 5: ...se 10 Earth Jack Fig 1 Soldering iron introduction Heating element With the high frequency heating get the rapid heat up time and great recovery Sensor Ahead of the tip greatly sense the temperature T...

Page 6: ...the iron s working temperature is set within the parameters suitable for the type of solder being used a good joint is assured Too low of a temperature will slow the rate of solder flow while a high...

Page 7: ...damaged or the soldering station becomes faulty discontinue use immediately To comply with safety standards the power lead must only be replaced by authorized technicians as special purpose tools are...

Page 8: ...F 2 and flashes that the unit enters the Temperature Correction Mode At this moment the LED displays preset correction value A Operation of Centigrade temperature correction Range 99 99 Press or key t...

Page 9: ...2 The tip working surfaces are not tinned while the iron idling 3 Lack of flux in soldering wicking repairing and touch up operations 4 Wiping the tip on a high sulfur content dirty or dry sponges an...

Page 10: ...may fuse to the heating element or retaining barrel MAINTENANCE TIP MAINTENANCE AND DRESSING Tips can be changed or replaced simply by unscrewing the knurled nut barrel assembly The station must be sw...

Page 11: ...10 INTERCHANGEABLE TIPS...

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