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--- en:hw:connection-of-ai-11-hidden [2020/12/16 14:34]
jan_kozak
+++ en:hw:connection-of-ai-11-hidden [2021/08/05 08:14] (current)
avsetula
@@ Line 1: / Line 1: @@
 /* zapojení AI na Unipi 1.1 */
-Analog inputs on Unipi 1.1 serve for reading 0-10 V voltage or resistance sensors (eg. Pt1000 temperature sensors). For resistance measurements, it is necessary to perform an external adjustment. The negative pole of the measured external device is connected to the **AIx-** terminal of the given connector while the positive pole (signal) is connected to the **AIx+** terminal (**x** represents the input's number).
+<WRAP group>
+<WRAP half column 81%>
+Analog inputs on Unipi 1.1 serve for reading 0-10 V⎓ voltage or resistance sensors (eg. Pt1000 temperature sensors). For resistance measurements, it is necessary to perform an external adjustment. The negative pole of the measured external device is connected to the **AIx-** terminal of the given connector while the positive pole (signal) is connected to the **AIx+** terminal (**x** represents the input's number).
+</WRAP>
+<WRAP half column 15%>
+;;#
+<html><span class="dev-tag dev-unipi11">Unipi&nbsp1.1</span></html>
+;;#
+</WRAP>
+</WRAP>
 <WRAP center round important 65%>
@@ Line 18: / Line 27: @@
 {{ :en:hw:020_connection_of_io.png?direct |}}
- VDC power supply on Unipi 1.1 is designed for digital inputs and can act as float voltage. For accurate readings we recommend using external power supply:
+ V⎓ power supply on Unipi 1.1 is designed for digital inputs and can act as float voltage. For accurate readings we recommend using external power supply:
 {{ :en:hw:021_connection_of_io.png?direct |}}
@@ Line 24: / Line 33: @@
 <WRAP center round box>
 **R_sens** = sensor resistance (400 Ω - 5000 Ω) \\
-**R_ref** = reference resistor (1,2 kΩ) \\
+**R_ref** = reference resistor (1.2 kΩ) \\
-**R_ai** = AI input resistance = 12,2 kΩ \\
+**R_ai** = AI input resistance = 12.2 kΩ \\
-**Vcc** = voltage supplied to the circuit. The image above depicts 12 V voltage. \\
+**Vcc** = voltage supplied to the circuit. The image above depicts 12 V⎓ voltage. \\
 **V_ai** = measured voltage between **AIx+** and **AIX-**.
 </WRAP>
 <WRAP center round tip 95%>
-At 12 VDC voltage and R_sens >= 200Ω, use reference resistance R_ref = 1.2 kΩ. At R-Sens < 200 Ω use R_ref = 10 kΩ.
+At 12 V⎓ voltage and R_sens >= 200Ω, use reference resistance R_ref = 1.2 kΩ. At R_sens < 200 Ω use R_ref = 10 kΩ.
 </WRAP>