[ATR121-B] setup
Posted: 05/12/2017, 19:52
Hi, i have purchased a ATR 121-B controller.
We like to use it as tankheating controller,
to heat up the tank we use 2 boilers,
when the setpoint 1 is set by the operator , lets says 45 degrees ,the controller needs tot switch on boiler 1 when the measured value becomes 2 degrees lower then the setpoint (in this example 43 degrees) en switch off when it becomes 2 degrees higher then the setpoint (in this example 47 degrees).
additional to that , if the measured value drops until 5 degrees below setpoint (40 degrees) , boiler 2 needs to switched on also, and this one may by switched of when the measured value equals the setpoint.
How do i need to set up the parameters ?
We like to use it as tankheating controller,
to heat up the tank we use 2 boilers,
when the setpoint 1 is set by the operator , lets says 45 degrees ,the controller needs tot switch on boiler 1 when the measured value becomes 2 degrees lower then the setpoint (in this example 43 degrees) en switch off when it becomes 2 degrees higher then the setpoint (in this example 47 degrees).
additional to that , if the measured value drops until 5 degrees below setpoint (40 degrees) , boiler 2 needs to switched on also, and this one may by switched of when the measured value equals the setpoint.
How do i need to set up the parameters ?