The APT4000 series continuously monitors sensor and analyzer electronics and immediately displays diagnostics when the problem occurs. It indicates the error code in a pictograph, blinks a red LED and adjusts the error current to 22 mA, if desired. A manual loop-back check is available if the user needs to test the integrity of the 4-20 mA output.
The device’s large front display aids quick recognition of process parameters and diagnostics even at a distance. The process analyzer displays pictographs that are easily recognized, that alert operators to process changes, as well as when problems occur. This helps reduce setup and maintenance times, minimize calibration errors and makes troubleshooting easy.