The Barton Model 202E single DP Flow Recorders measure and record system operation parameters including gas and liquid level in a vessel, and other system variables that can be measured by differential pressure and static pressure methods.
The main components of Barton Model 202E are:
- Differential Pressure Unit
This part Differential Pressure Unit (DPU) actuates the recorders, the DPU is a dual bellows assembly enclosed within pressure housings.
- Adjusting Pulsation Dampener
This part of DPU
This part as a linkage and pen system that permanently records data. It converts mechanical inputs from the DPU and static pressure element to transcribe lines on revolving chart. All material parts of the recorder mechanism are made of stainless steel.
This element measure static pressure in a piping system from 0 to 30 inches of Hg vacuum or from 0 to 10,000 psi. The sensor element is a bourdon tube consisting of a slightly flattened cross-section of tubing coiled into a helix or flat spiral. The outer end of the tubing is seald and attached to a drive arm, which is attached to the static pressure connection tubing.
Generally, Barton recorder require no maintenance other than replacement of the chart, replenishment of the ink, winding of the spring-wound chart drives, and occasional calibration. In addition, the operator should periodically check the door seal for wear and the pressure fittings for tightness:
