Weller Wecp 20

Weller WECP-20 is adjustable soldering iron.

WELLERSolder.JPG

Temperatures From 50 to 450 Degrees Celsius
6-Channel Connection Socket
Visible Regulation Control

Analogue temperature regulation is carried out using a potentiometer which can be used to set the temperature continuously in a range of 50 to 450 degrees Celsius. A green LED indicates the status of the regulation.
English PDF manual: (click the picture)
WECP_manual.pdf
or
http://www.artisantg.com/info/PDF__57656C6C65725F5745435032305F44617461736865657432.pdf

Weller WECP-20 TIP is ET-A — ET-S
The tip diameter is 0.8,1.2, 2.0, 2.4,3.2,4.6 or 5.6mm .
ET-S is 0.8mm, others go from ET-A to ET-H.

The temperature sensor for WECP-20

temperaturesensor.jpg

It is available from Farnell http://nl.farnell.com/weller/52641099/temperature-sensor-for-lr21/dp/458247?ost=52641099

ET-A1.gifWellerET-K.jpg

Then there is an adater from LT/ET. All LT-series tip will got to ET-series solder lin WECP-20.
This adapter costs about 20 euros. Tips cost about 5-7e.

ET-LT1.gif

This a tool 10311 for Weller WECP-20 costs about 5-6 euros

10311.gif

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weller-wecp-20-temptronic-2298360975.jpg

My WECP-20 is working well, but if it will go break, I prepare a schematic diagram

24.9.2016 Well ,not any more. The tip stopped to heat. When I move the connetion to Weller, it started to work again.
I open the Weller and tried to find a bad connection, but I didn't find anything.
I put Weller back in service. Let see if it will do same again.
I took a picture and put on top of this page.

wecp-20.jpg

Vit Vaculik from Czech Republic has done PCB for WECP-20 2.8.2015

pcb_bottom.pdf
and
pcb_top.pdf
and pcbs
PCB_Wecp20.png
and Eagle PCB file

http://remotesmart.wikidot.com/local--files/weller-wecp-20/Weller_wecp-20pcb.brd

Thank you for your work!
Just click the pdf-pictures.

SL443A.jpg
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Weller Temperature sensor 52641099 from Farnell 458247 Weller_temperature_sensor_42350151.jpg

Click for SL443A pdf

SL443A-1.pdf
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t_weller_wecp20_vezje.jpg
burst_control.gif
wecp_20.jpgwecp20pins.jpgWECP layout
wecp_layout.jpg
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Weller-LR21SL443A.jpgweller%20pu-81.png wellerwecp20.jpgwellerw123.jpg

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WECP-20 heat sensor
PTC 22ohmia

50 24,65
60 25,50
70 26,33
80 27,16
90 28,00
100 28,82
110 29,61
120 30,43
130 31,31
140 32,14
150 32,94
160 33,74
170 34,55
180 35,41
190 36,19
200 36,96
210 37,75
220 38,53
240 40,12
250 40,88
260 41,67
270 42,40
280 43,17
290 43,94
300 44,69
310 45,45
320 46,25
330 46,95
340 47,74
350 48,47
360 49,26
370 49,95
380 50,69
390 51,39
400 52,11
410 52,82
420 53,62
430 54,38
440 55,12
450 55,86

Service manual

WECP-20.01.jpgWECP-20.02.jpg
Weller-zelb.01.jpgWeller-zelb.02.jpg
WECP-20.03.jpg

Pekka OH3GDO
www.probyte.fi

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