Smart Home Automation Forum
Analog current input - Printable Version

+- Smart Home Automation Forum (https://www.kincony.com/forum)
+-- Forum: Technical Support (https://www.kincony.com/forum/forumdisplay.php?fid=20)
+--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25)
+--- Thread: Analog current input (/showthread.php?tid=6558)



Analog current input - Linnalahti - 09-01-2024

How to use 0-20mA signal to analog input?

Admin did not anservered the qustion?
How to use 0-20mA signal insted off 4-20mA


RE: Analog current input - admin - 09-01-2024

KC868-A16 have 4 channel analog input ports.
actually the circuit is same, if use for VOLTAGE or CURRENT, just replace two resistance for SWITCH.
for example, if you want CHA1 use for 4-20mA, you can replace R70 resistance with 0ohm, R72 resistance with 150ohm.
every analog input channel switch as the same way. so if you want 4 channel of 4-20mA, just replace with all resistance.
[Image: attachment.php?aid=5914]


RE: Analog current input - Linnalahti - 09-02-2024

(09-01-2024, 11:51 AM)admin Wrote: KC868-A16 have 4 channel analog input ports.
actually the circuit is same, if use for VOLTAGE or CURRENT, just replace two resistance for SWITCH.
for example, if you want CHA1 use for 4-20mA, you can replace R70 resistance with 0ohm, R72 resistance with 150ohm.
every analog input channel switch as the same way. so if you want 4 channel of 4-20mA, just replace with all resistance.
[Image: attachment.php?aid=5914]



RE: Analog current input - obapec - 01-18-2025

(09-01-2024, 11:51 AM)admin Wrote: KC868-A16 have 4 channel analog input ports.
actually the circuit is same, if use for VOLTAGE or CURRENT, just replace two resistance for SWITCH.
for example, if you want CHA1 use for 4-20mA, you can replace R70 resistance with 0ohm, R72 resistance with 150ohm.
every analog input channel switch as the same way. so if you want 4 channel of 4-20mA, just replace with all resistance.



I have a question : how replace the resistance : change the cms resistor on the board ?
it's difficult to do it  without specific materials ?
So can we use 4-20mA sensor on the adc 0-5V with an exterior resistor ?
thanks


RE: Analog current input - admin - 01-19-2025

how replace the resistance : change the cms resistor on the board ? -->yes
it's difficult to do it without specific materials ? -->It’s not difficult to use electric ferrochrome tools
So can we use 4-20mA sensor on the adc 0-5V with an exterior resistor ? -->no, can't