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Connect um330 and kc828 a16 - Printable Version

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+--- Thread: Connect um330 and kc828 a16 (/showthread.php?tid=8265)

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RE: Connect um330 and kc828 a16 - gtd0916 - 07-03-2025

(06-26-2025, 08:52 AM)admin Wrote: yes

Success! Thank you. 
However, when I set the range to 4~20ma, the values tend to come out a little differently (I entered 0 as the lowest and 20 as the highest on the web). 
Do I need a resistor to match it? 
And I have 4 um330s, is there a device that I can connect at once?

RE: Connect um330 and kc828 a16 - admin - 07-03-2025

you can set 4-20mA level, not begin with "0"

RE: Connect um330 and kc828 a16 - gtd0916 - 07-03-2025

(07-03-2025, 07:54 AM)admin Wrote: you can set 4-20mA level, not begin with "0"

I'm trying to connect four same devices. They all output 4-20mA. Can you recommend a product? A16 only supports two port.

RE: Connect um330 and kc828 a16 - admin - 07-04-2025

how many 4-20mA analog input channel you want?

RE: Connect um330 and kc828 a16 - gtd0916 - 07-04-2025

(07-04-2025, 12:39 AM)admin Wrote: how many 4-20mA analog input channel you want?

4

RE: Connect um330 and kc828 a16 - admin - 07-04-2025

If you can replace the resistors on the PCB, you can switch "0-5v" to "4-20mA" signal.

RE: Connect um330 and kc828 a16 - gtd0916 - 07-04-2025

(07-04-2025, 03:45 AM)admin Wrote: If you can replace the resistors on the PCB, you can switch "0-5v" to "4-20mA" signal.

Thank you for always responding.

So, I just need to replace the resistors R152~R155 with the same ones as R70~R73?

I knew I had to buy the above model! Smile

RE: Connect um330 and kc828 a16 - admin - 07-04-2025

yes, you are right.

RE: Connect um330 and kc828 a16 - gtd0916 - 10-16-2025

(07-04-2025, 06:13 AM)admin Wrote: yes, you are right.

I'm using the setup you mentioned before and it's working fine. 
So, I'm trying to connect 10 UM330s using the same method.
What boards are available that can connect 10 of them?

RE: Connect um330 and kc828 a16 - admin - 10-16-2025

10 channel analog input for 4-20mA ?
what software you will use? home assistant?