Honeywell Truline DR4500A Circular Chart Recorder Temperature Process Controller
Used. In good physical condition overall; see photos.
Unit was powered on and the display/buttons responded. The recorder enters its calibration/test display as shown. The unit currently displays “INP1FAIL” because no compatible process/temperature sensor was connected during testing. You must supply your own sensor for it to function.
No thermocouple or other input sensor was included for further functional testing.
