The receiver communicates its operational status via specific mA current levels sent to the control system:
Which (Short, Medium, or Long) are you working with? Are you connecting via HART handheld or PolySoft software ? What fault code or mA reading are you currently seeing? drager pulsar 7000 manual
use abrasive cleaners or harsh solvents, which can scratch or strip the anti-reflective coatings. Bump Testing drager pulsar 7000 manual