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Manufacturing & Assembly / Re: Brief review of the Zhengbang ZB2520HL reflow oven (T-962A alternative)
« Last post by Kean on Today at 07:59:25 am »I have the ZB3530HL & have attempted to use the software provided for the ITECH RF-A350. The software connects ok (the ZB3530HL displays "PC Link" on the LCD). I'm using a USB-Serial lead on Windows 11. When I press "Run" with a suitable configuration, the machine does nothing & the "Now" section at the top shows nothing in the Temperature field. I've tried with flow control & as admin.
I've tried searching for an answer online to no avail. Has anyone been able to get this working successfully & what's the trick?
Pete
I've been meaning to try the PC software myself, so last night I asked ITECH for the RAR file password and today I hooked up a laptop with a USB to RS232 cable and the cable provided with the oven.
I started the software, selected COM4, and clicked Open to open the port, then click Link and I for the same "PC Link" message on the oven LCD. That is a good sign it is communicating.
I entered some reflow parameters (similar to the built-in Curve 4 that I've been using) and hit Run. Everything worked as expected, with the set points and hold times as specified.
Screenshots attached. The Y axis of the graph is 25C per div, and X axis is 45 seconds per div.
My main complaints are:
- You can only specify set point and hold times, but I guess that makes sense as it can only ramp up or down so fast.
- It is quite slow in the cooling phase, taking 9 or 10 minutes to cool to 100C in my case unless I open the door. Would be nice if it ran the fan faster.
- The PC software is really basic.
- The graphed temperature curve is restarted if the time exceeds the full width (900 sec/15 mins) which my settings do (only just).
- The graph also blanks after the run is complete.