BARTON 242E CHART RECORDER STATIC PRESSURE ELEMENT DAMAGE CHANGE TO NEW ELEMENT.
The Barton Chart Recorder is the industry standard for accurate, reliable measurement and recording of pressure, differential pressure, and temperature.
Rotate pen arm and shaft by gripping the range arm and forcing (or slipping) the pen until it indicates zero. The pen arm and shaft should rotate at the range arm pivot point without loosening the range arm lock screw.