MODEL WES51 ELECTRONIC SOLDERING STATION
DESCRIPTION
The WES51 Soldering Station is one in a series of products, which have been developed for industrial manufacturing as well as for the rework and repair sector. The microprocessor control allows for simple and easy operation. The digital electronic control system offers excellent control performance for various soldering jobs.
A grounded soldering iron tip, zero power switching and anti-static design of the station and tool allows the WES51 Soldering System to meet the high quality standards established by Weller®. The station features external tip temperature offset and the ability to lock the tip temperature setting using the PW50 Probe supplied. The station will automatically enter a sleep mode and shut off power to the tool and indicator LED after 99 minutes of inactivity.
Tip temperature is adjustable in the range of 350°F to 850°F (177°C to 454°C), with the front panel temperature control knob. The LED power indicator will be “Green” for normal operation or “Red”, if the temperature is “Locked”. The LED for the WES51 will also indicate the operation of the station by the following sequence: Indicator LED full “On”, indicates that the station is ramping up to temperature (this can be indicated in either the “Green” – Unlocked mode or the “Red” – Locked mode). Indicator LED full “Off” or flashing steadily, indicates that the station has reached the “Set Point” (this also can be indicated in either the “Green” – Unlocked mode or the “Red” – Locked mode). This soldering station is UL/CUL listed and meets all applicable standards for the CE mark.
OPERATING INSTRUCTIONS
Unpack unit carefully. Place spring and funnel in slot in top of tool stand. Dampen the sponge, distilled or de-ionized water is preferred. Insert tool in holder and connect tool plug to receptacle on power unit; rotate plug housing Clockwise (CW) to lock plug into receptacle. Insert line cord plug into properly grounded AC receptacle and turn station “On”. Set
temperature control knob to desired tip temperature. Wait 30 seconds. Remove tool from holder and tin tip with solder. Unit is ready for use once the LED begins to flash, indicating that it has reached the operating temperature (indicated in either the “Green” or “Red” mode).
Always use the lowest temperature that will handle the load that you are soldering. The Weller® electronic control provides maximum power to the heated load even when set to the lowest temperature; therefore, there is no need to use high temperatures to handle heavy soldering loads. By using lower temperatures and properly selecting tip styles, sensitive components will be protected from heat damage.
WARNING: Do not remove ground prong from line cord plug. Removal may cause tip temperature control to be erratic.
AVAILABLE MODELS AND HAND PIECES
PRODUCT |
DESCRIPTION |
WES51 |
Power unit, 120V 60Hz, °F dial markings, PES51 tool and tool stand |
WES51DUK |
Power unit, 230V 50/60 Hz, °C dial markings, PES51 tool and tool stand |
PES51 |
50 watt Soldering Tool w/ETA Tip |
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.
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SPECIFICATIONS
STATIONS
1. |
Power Input: |
120VAC ±10 %, 60 Hz, (230VAC ±10%, 50/60 Hz), 60 watts. |
2. |
Power unit output voltage: |
Isolated 24VAC @ 2.1 amperes. |
3. |
Size: |
4.5" x 5.9" x 3.6". |
4. |
Line Cord: |
3-Wire, UL Recognized. |
5. |
Tip temperature control range: |
350°F to 850°F (177°C to 454°C). |
6. |
Control setting resolution: |
10°F (6°C). |
7. |
Stability: |
±10°F (±6°C) per MIL-STD-2000. |
8. |
Absolute accuracy: |
Average tip temperature can be “Offset” to ±9°F (±5°C) at idle with no load. |
9. |
Ambient temperature range: |
60°F to 110°F (16°C to 44°C). |
PENCILS |
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1. |
Wattage: |
50 watts at 24 Vac. |
2. |
Tip voltage: |
Less than 2 mv TRMS to line cord ground pin. |
3. |
Tool weight: |
2 ounces without cord. |
4. |
Tool material: |
Static dissipative thermoplastic handle and stainless steel. |
5. |
Heater type: |
Fiberglass and ceramic insulated heating element. Reverse wound for low |
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leakage and magnetic field cancellation. |
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6. |
Tip type: |
Weller® ET and SMT series tips. Copper with heavy Iron, Nickel and Chromium |
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plating for long life. |
7. |
Sensor: |
Type “K” Thermocouple. Fits deep inside tip for maximum response. |
8. |
Handle design: |
Heat insulated with foam sleeve for low grip temperature and maximum comfort. |
9. |
Tool cord: |
Silicone rubber, burn resistant. |
10. |
Connector: |
Polarized, 6 pin locking. |
11. |
Recovery time: |
Less than 10 seconds from 100°F drop with ETA tip at 700°F. |
STANDARDS
1.Housing and tool handle made with Electrostatic Protective Materials as required in MIL-B-81705.
2.Housing passes Static Decay Test per Federal Test Method Std. No. 101, Method 4046.
3.Weller® ESD tools comply with DOD-HDBK-263.
4.WES51 & WESD51 units are U.L. Listed and meet MIL-STD-2000, MIL-S-45743, W-S-6536, W-S-570 & DOD- STD-1686.
5.WES51 units are UL/CUL listed and meet all applicable standards for CE mark.
ACTIVATION OF LOCKOUT FEATURE
1.Adjust the temperature set knob to the desired tip temperature.
2.Apply the Lockout Pencil to the ESD symbol on the front panel until the LED starts slowly (5 Hz) blinking “Red”. Remove the Lockout Pencil within 2.5 seconds and the temperature setting will be “Locked” in. The indicator LED will be “Red” and turning the temperature set knob will have no effect on the tip temperature.
3.Reverse the lockout by applying the Lockout Pencil to the ESD symbol until the LED is slowly blinking “Red”. Remove the Lockout Pencil within 2.5 seconds and the temperature set knob will function normally and the
indicator LED will be “Green”.
Note: If the Temperature Set Knob has been adjusted during the “Locked Mode”, the station will control to the new set point, once the “Lockout” feature has been disabled.
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TIP TEMPERATURE “OFFSET” PROCEDURE
1.Monitor the tip temperature using the K111, Type “K” Thermocoupled Tip temperature test kits. (see Replacement Parts and Accessories Section)
2.Adjust the temperature set knob to the desired tip temperature and allow the tip temperature to stabilize.
3.Apply the Lockout Pencil to the ESD symbol on the front panel. The LED should slowly blink “Red” for 2.5 seconds and then slowly blink “Green”. Adjust the temperature set knob to the measured tip temperature, remove the Lockout Pencil, and the “Offset” procedure is complete.
RESET STATION TO FACTORY DEFAULT SETTINGS
With station turned “Off”, adjust temperature set knob to 600°F (315°C). Apply the Lockout Pencil to the ESD symbol on front panel and turn station “On”. Remove the Lockout Pencil and the procedure is complete. Any tip temperature offset programmed above will be reset to nominal factory settings.
AUTO OFF FEATURE
The Weller® Model WES51 Station will automatically shut off power to the tool and the power indicator LED after 99 minutes of inactivity of the iron. Certain applications may not be recognized by the “Loading Effect” on the tool and may require more frequent wiping of the tip on the damp sponge to recognize use.
TROUBLESHOOTING GUIDE
WARNING: AC line voltage is present inside power unit even when power switch is off. Refer service to qualified personnel.
NOTE: Access to internal parts may be gained by removing four rubber feet, four screws under feet and top case.
TOOL DOES NOT HEAT
With line cord unplugged and power switch on, check for approximately 21 ohms at line cord blades (55 ohms for 230V unit).
·Check power switch for continuity in the “On” position - replace if defective.
·Check line cord for continuity - repair or replace if defective.
·Check transformer primary - replace transformer if defective.
With line cord plugged in and power switch on, check for 24VAC ±10% between pins #2 and #6 of tool receptacle.
·Check transformer secondary for 24VAC ±10% - replace transformer if defective.
·Check wiring to printed circuit board assembly - repair or replace if defective.
·Replace printed circuit board assembly.
Check wiring from tool receptacle to printed circuit board.
·Repair or replace if defective.
Replace soldering tool with known good tool and recheck.
·Refer to Tool Troubleshooting Guide
·Replace printed circuit board assembly.
TOOL OVERHEATING
Replace soldering tool with known good tool and recheck. · Refer to Tool Troubleshooting Guide
Replace printed circuit board assembly in station.
TIP TEMPERATURE TESTING ERRORS
NOTE: Tip temperature testing must be done using the K111, Type “K” Thermocoupled Tip temperature test kits. (see Replacement Parts and Accessories Section). Other methods (Contact Pyrometers or Large Loading Devices), or heavier thermocouple wire, will cause errors. Replace soldering tool with known good tool and recheck tip
temperature.
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