OK International soldering system User Manual

2 

www.okinternational.com

 

7000-2250 Rev1 

 

The PS-900 Soldering System consists of a Power Supply, Workstand with Cradle and 
Sponge, and a Soldering Handle. The soldering handle also houses a replaceable Coil 
Assembly and replaceable heater tip. Both of these consumables are available from your 
authorized OK International distributor as needed. The power supply features a Power 
Switch, green “Power On” indicator light, power cord, and a connecting port for the solder 
handle cord.  

 

1.  Mount the power supply in a convenient location in your workspace, such as on the 

workbench. 

 

2.  Insert a heater tip onto the Coil Assembly and simply push the Heater Tip all the way 

until it seats. You should feel a slight “click” as it locks into place.  

 

 

 

 

 

 
Insert Tip onto Coil Assembly 

 

 

3.  With the power “Off”, attach the solder handle cord to the power supply by inserting 

the cord connector into the power supply connecting port. To align the 3 pins, position 
the flat side of the cable connector toward the 9 o'clock position of the power supply. 

 

4.  Wet the sponge with de-ionized water until it is moist but not soaked. Then place it in 

the workstand tray. 

 

5.  Plug the power cord into a grounded wall socket of the appropriately rated input line 

voltage. To turn the unit on, push the switch (located on the front of the power supply) 
until it latches. The green indicator light should light up. If it does not, see the 
“Troubleshooting Guide” in this manual. 

 
CAUTION:  To provide continued protection against the risk of electric shock, connect 
only to properly grounded outlets. 

®

The PS-900 System is comprised of an induction coil assembly and a heater tip. Each heater tip 
is equipped with a self-regulating heater which ‘senses’ its own temperature and tightly 
maintains its pre-set idle temperature for the life of the heater-tip; all controlled by OK 
International’s proprietary SmartHeat

®

 technology. The tip temperature is determined by the 

inherent metallurgical properties of the heater; no external adjustment or equipment is required. 
The power delivered to the tip automatically varies in direct response to the thermal load. This 
eliminates spikes and transients associated with electrically switched elements found in 
conventional soldering irons. Please feel free to contact your OK International representative 
with any questions.

 

3 

www.okinternational.com

 

7000-2250 Rev1 

4. SELECTING HEATER TIPS 
 

OK International’s Heater Tips come in a wide variety of tip geometries and temperature ranges 
(contact your local OK International Representative or visit our website for more information). 
These tip geometries cover a broad range of tasks from delicate precision work to heavy ground 
plane soldering. 
 

 

 

 

 
1. Pick a tip that maximizes contact area between the tip and solder joint. Maximizing contact 

area gives the most efficient heat transfer, producing high quality solder joints quickly. 

 
2. Pick a tip that allows good access to the solder joint. Shorter tip lengths allow more precise 

control. Longer or angled tips may be needed for soldering densely populated boards. 

 
3. Pick the lowest temperature tip cartridge that will accomplish the task. This minimizes the 

potential for thermal damage. The temperature series is marked on the shaft of the Heater 
Tip.  

5. REPLACING HEATER TIPS 
 

1.

 

Push the Power Switch “Off.” Removal of the 
Heater Tip with the power On will result in damage 
to the coil assembly.    

 
2. 

Pull out the heater tip using the supplied AC-CP2 
Cartridge Removal Pad. DO NOT USE METAL 
TOOLS (SUCH AS PLIERS) TO REMOVE 
HEATER TIPS, AS THIS CAN DAMAGE THE 
HEATER.  

 

 

3. 

Push a new heater tip into the solder handle with the supplied AC-CP2 Cartridge Pad. 
 

4. 

Push the Power Switch “On.” The new heater tip will heat up to temperature in less 
than 20 seconds.