Always preheat the PCB (up to 120
℃
or between 45 – 90 seconds) to allow the heat to
conduct through to the component before introducing the Top Heat. With the 700W
pre-heater the top of a small PCB will reach 120
℃
in approximately 45 – 90 seconds.
Larger PCBs will take longer to pre-heat. To check the PCB/component temperature, use the
hand-held IR temperature sensor to ‘look’ down at the PCB/component from about 60mm
away and at about 4
5° angle.
How long does it take to reach reflow temperature?
After preheating the PCB up to 120
℃
, it should normally take about 30 – 45 seconds of
heating with the IR hand tool to reach reflow (200-220
℃
). It is not so easy to measure
temperature during the reflow phase so therefore we use the electronic process timer to warn
us when the reflow phase time is over.
TROUBLE SHOOTING
WARNING
：
1
Unless otherwise stipulated, carry out these procedures with the power switch OFF
and the power UNPLUGGED before the trouble is cleared.
2
If the unit is damaged, it should be repaired by the manufacturer or its authorized
repairing centers to preclude damage to either the unit or injury to personnel.
3
Be sure the unit has been cooled to room temperature before beginning work.
Item
Problem
Remedy
1. No Power when
Power switch
“ON”
a. Check the AC power
cord and receptacle. b.
Mains switch no good. c.
Fuse blown out.
1. Re-insert the plug. 2. Replace
the switch. 3. Investigate why the
fuse blew then replace a new fuse.
(If the cause can not be
determined, just replace the fuse.
If the fuse blows again, send the
unit to repair.)
