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Summary of Contents for Puhui T-890
- Page 1 BGA IRDA WELDER T-890 USER MANUAL BGA IRDA-WELDER USER MANUAL MODEL: T-890 TAIAN PUHUI ELECTRIC TECHNOLOGY CO., LTD http://www.tech168.cn...
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Page 2: Technical Parameters
7. Ergonomic design, practical and easily operated. Good build quality but at the same time light weight and a small footprint allows the T-890 to be easily bench positioned, transported or stored. Technical parameters... -
Page 3: Description Of The Main Parts
IRDA-WELDER T-890 USER MANUAL Infrared lamp body heating size 60 X 60 mm Preheating chassis preheating size 245 X 260 mm 0 ℃-350 ℃ Preheating chassis temperature range Size 316mm X 410mm X 290mm Net weight 9.3 kg Main parts... -
Page 4: Front Panel
IRDA-WELDER T-890 USER MANUAL 2. Front panel Display screen Power switch Press button Indicator light 3. Portal frame and lamp body Lamp body adjust knob Moving hand wheel Lamp connecting line Portal frame Circuit board support Focusing knob Http://www.tech168.cn... -
Page 5: Operating Instructions
IRDA-WELDER T-890 USER MANUAL Operating instructions: 1. Examination and operation, 1). Place this machine on an even surface with good ventilation and no combustible items nearby. Leave at least 20mm on either side because the machine will emit heat when in use. Check the power supply voltage, connect the machine with the power supply, turn on the power switch, the LCD screen will display as follows: 5-1：Main manu page... - Page 6 IRDA-WELDER T-890 USER MANUAL 4). Press “F2” button, the infrared lamp start to heat up as the presupposed temperature wave. The preheater temp The lamp temp 5-3：the LCD screen display page 5). When the process finished, return the previous page automatic. If you want to stop in the process, press “F3”...
- Page 7 IRDA-WELDER T-890 USER MANUAL 3). Press “F2” button enters to the select/set page, following we provide eight different wave cycles, please choose one according to your request, press “F1” to confirm the wave you choose, press “F2” button, come to the Main Manu page 4).
- Page 8 IRDA-WELDER T-890 USER MANUAL 5). Press “F2” button, the lamp starts heating up according to the setting temperature. 6) Each temperature wave purposes as follows: Wave one; use the same with soldering the less lead paste, like 85Sn/15Pb 70Sn/30Pb Wave two; use the same with unsoldering the less lead paste, 85Sn/15Pb 70Sn/30Pb Wave three;...
- Page 9 IRDA-WELDER T-890 USER MANUAL Wave four; use the same with unsoldering the more lead paste, like 63Sn/37Pb 60Sn/40Pb. Wave five; use the same with soldering high-melting-point lead-free paste, like Sn/Ag3.5；Sn/Cu.75 Sn/Ag4.0/Cu.5 Sn95.5/Ag3.8/Cu0.7 Wave six; use the same with unsoldering high-melting-point lead-free paste, like Sn/Ag3.5；Sn/Cu.75 Sn/Ag4.0/Cu.5 Sn95.5/Ag3.8/Cu0.7...
- Page 10 IRDA-WELDER T-890 USER MANUAL Wave seven; use the same with soldering lead-free solder in melting point, like Sn/Ag2.5/Cu.8/Sb.5；Sn/Bi3.0/Ag3.0 Wave eight; use the same with unsoldering lead-free solder in melting point, like Sn/Ag2.5/Cu.8/Sb.5；Sn/Bi3.0/Ag3.0 Attentions: 1. According to the chips size and welding technological requirements, select the right wave to unsolder the chips, use tweezer or vacuum nozzle to remove the chips.
- Page 11 IRDA-WELDER T-890 USER MANUAL For these reasons, we design this product can set eight waves, each wave has eight sections, each section of the heating time and temperature all can alter. You can reset the heating waves according to the solder required heating temperature and time.
- Page 12 IRDA-WELDER T-890 USER MANUAL causing the solder paste does not melt. If the peak temperature is high or the reflow time is long, the metal power will be oxidized and affect the welding quality and serious is causing the component and PCB board damaged.
- Page 13 IRDA-WELDER T-890 USER MANUAL Adjust the infrared lamp temperature sensor: Put the infrared lamp temperature sensor on or around the chip. Then adjust the place of PCB board preheat temperature sensor, letting the sensor contacts the preheat plate well. In order to let the temperature measurement exact, put some flux around the chip and the head of sensor.
- Page 14 IRDA-WELDER T-890 USER MANUAL support. Then set the PCB preheat temperature between 160 and 180℃ and put the temperature sensor near the sealing off component. Turn on the preheat plate for 3-5 minutes or more. You can seal off when the component is equally heated. Specially, should turn on the upper infrared lamp to heat up, which can seal off quickly.
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Page 15: Daily Maintenance
IRDA-WELDER T-890 USER MANUAL all plastic plug-in unit, carries on the cover using the aluminum tin foil, prevented high temperature infrared dries the distortion or the harm. But it is not wraps completely. 4). Clean and dry the PCB board after reflow and dry it, the check it; if it is not good, can reflow again.
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