Pixsys Forum

Good morning,
I need to create a system with a ATR444 regulator that controls a heating lamp in order to maintain the temperature in a system.
I purchased a atr444-13abc regulator from one of your specialized distributors.
I want to connect a 3-wire pt100 temperature probe or sensor to the analog input of the atr444 temperature controller.
Can you tell me the electrical connections to control the heating lamp and the pt100 with a static relay with the relative configuration parameters should i enter?
Thank you.

Good morning,
Below are the connection diagrams of the required probe or sensor:
input / terminal 16 - pt100 probe red wire
input / terminal 17 - white wire PT100 probe
input / terminal 18 - pt100 probe red wire

Below are the connection diagrams of the relay connected to the power supply for the heating lamp:
input / terminal 20 - "-" wire static relay
input / terminal 21 - "+" wire static relay


Subsequently, to log in and in order to modify the configuration parameters, proceed as follows:
press "FNC" for 3 seconds;
enter the password "1234";
press "FNC" again to confirm;
use the two arrows to scroll through the parameter groups;
press "SET" to allow modification of the selected parameter;
use the arrows to change its ownership;
press "SET" again to confirm the change;

Below are the parameters to modify to select the 3-wire PT100 probe:
GROUP Parameters A - [A.in.1] - Analog input 1
Par. 1 [SEn.1] = Pt100

Below are the parameters for setting the control output to digital output:
GROUP Parameters B - [cMd.1] - Outputs and regulation Process 1
Par. 37 [c.ou.1] = c.SSR

If you want to enable automatic PID control:
By setting "Auto" on Par. 36 "tun.1", the controller analyses process fluctuations and optimises the PID parameters.
LED T flashes and the procedure starts.
P.S.: It is recommended to start the parameter calculation procedure from a temperature that is 30% lower than the setpoint temperature.

Press "FNC" once to return to parameter group selection,
Press "FNC" a second time to exit setup mode.


The value of the main setpoint (and alarm setpoint if enabled) can be modified from keyboard as follows:
Change the value on display 2 (bottom row) with up and down arrow keys;
(pressing the "set" key allows you to view the other setpoints, located on display 1 (top row). Display 2, on the other hand, indicates the setpoint type.
Change the digit on display 1 with up and down arrow keys.

To simplify the operation we suggest you to download "MyPixsys" APP which, via NFC communication, will allow to view and modify the setting parameters from your mobile phone or tablet.
MyPixsysApp: https://www.pixsys.net/software-e-soluzioni/mypixsysapp