Ebyte E104-BT11 - 7.3 BER (Bit Error Rate) is High; 8 Welding Instruction; 8.1 Reflow Soldering Temperature

Chengdu Ebyte Electronic Technology Co., Ltd E104-BT11 User Manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd
27
7.3 BER(Bit Error Rate) is high
 There are co-channel signal interference nearby, please be away from interference sources or modify
frequency and channel to avoid interference;
 Poor power supply may cause messy code. Make sure that the power supply is reliable;
 The extension line and feeder quality are poor or too long, so the bit error rate is high.
8 Welding instruction
8.1 Reflow soldering temperature
Profile Feature
Curve characteristics
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Solder paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min （Tsmin）
Min preheating temp.
100℃
150℃
Preheat temperature max (Tsmax)
Max preheating temp.
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
Preheating time
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
Average ramp-up rate
3
℃
/second max
3
℃
/second max
Liquidous Temperature (TL)
Liquid phase temp.
183
℃
217
℃
Time（tL）Maintained Above（TL）
Time below liquid phase
line
60-90 sec
30-90 sec
Peak temperature（Tp）
Peak temp
220-235℃
230-250℃
Aveage ramp-down rate（Tp to Tsmax）
Average ramp-down rate
6℃/second max
6℃/second max
Time 25℃ to peak temperature
Time to peak temperature
for 25℃
6 minutes max
8 minutes max