Differential Pressure Units
Recorders and Controllers
With more than one million BARTON DPU-based instruments in service around the world today, Cameron's Measurement Systems division is a premier supplier of reliable and accurate chart recorders, indicators, switches and pneumatic controllers. Originally developed in the early 1920s, our differential pressure technology features a welded bellows assembly that increases accuracy while dramatically reducing the effects of wear. To facilitate quick and easy repairs all DPU based instruments are supported with pre-calibrated exchange or repaired sub-module bellows assemblies.
Products
- Model 202E Barton Flow Recorder
- Model 242E Barton Pressure-Temperature Recorder
- Models 274A, 335 & 338E Pneumatic Transmitters & Controllers
- Model 273C, 284C, 336C Pneumatic Transmitters & Controllers
- Model J8A Barton 8" Pressure-Temperature Recorder
- Model 199 Differential Pressure Unit
- Model 224 Differential Pressure Unit


Control Valve Solutions