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BARTON® Model 202E Flow Recorder


BARTON chart recorders are the industry standard for accurate, reliable measurement and recording of

pressure differential pressure and temperature pressure, pressure, in a wide variety of applications. In addition, DP models

utilize rupture?proof bellows DPU as the actuating unit — with features like overrange protection and

pulsation dampening (on some models).


The 202E is a 12-inch chart recorder that has been widely used in gas transmission and distribution fields

– accurate calibration, even under extreme variations in static pressure and ambient temperatures. The

202E is available in 1 to 4 pen configurations (DP+3 additional pens). The additional pens can be used to

record temperature and supplemental pressure data. The unit is actuated by a BARTON Model 199 DPU,

with standard and NACE units available (up to 6,000 PSI/414 bar SWP) — see DPU bulletin #21700 for

details. Static pressure and temperature pens are actuated by precision wound elements.





The PW4 weather resistant pressure chart recorder is housed in a Valox

PBT NEMA 4X case. This lightweight 4? circular chart recorder provides

pressure documentation even in the toughest of outdoor environments.

Looking for something with greater chart resolution – the PR8

has triple the readable chart area!

•Water and Dust resistant case

•Durable and Compact

•Operates for up to one year on a single AA battery

•Easy-to-operate and install

•Battery holder inside door for easy battery changes

•On/Off switch for battery savings

See Models for available ranges

Notes:Please keep in mind that the PW4 Pressure Chart Recorders are not suitable for

monitoring ammonia, acids or other corrosive substances. And only the PW461 and PW462

are suitable for monitoring salt water.

Pressure Range:0 to 500 PSI

Pressure Accuracy:±2% full scale

Ambient Operating Conditions:?22 to +122°F (?30 to +50°C), 0 to 100%

Power Source:One AA battery (user replaceable)

Battery Life (Average):1 Year

Chart Size (Diameter):4”

Recording Time:7 day

Response Time:1 second

Calibration:Standard Dickson Certificate of Calibration

Available Calibration Options:User: None; Factory: zero point and span NIST traceable

Enclosure: Velox PBT NEMA 4x