gohastings.com Hastings Entertainment Automobile Parts 210/212 SERIES Manual De Usuario
168-082010_ 210-212 Meter/Controller
Page 11 of 17
2.9. Valve-Override Control
The valve override control line provides a method to override the loop controller and open or close the valve
regardless of the flow or command signals. During normal operation this line must be allowed to float freely.
regardless of the flow or command signals. During normal operation this line must be allowed to float freely.
This will allow the loop control to open and close the valve as it requires. If the valve override line is forced
high (> +5 volts) the valve will be forced full open. If the valve-override line is forced negative (< -5 volts) the
high (> +5 volts) the valve will be forced full open. If the valve-override line is forced negative (< -5 volts) the
valve will be forced closed.