1151DP5S22 is Rosemount (Emerson) classic 1151DP series smart differential pressure transmitter. It adopts capacitive sensing principle to detect differential pressure, converting pressure difference signal into standard 4~20mA analog signal with HART digital communication. It is widely used in chemical plants, power stations, oil & gas and water treatment industries for pipeline flow measurement, tank liquid level monitoring and differential pressure supervision. It is an end-of-life spare part for legacy process automation control loops.

This transmitter features explosion-proof cast aluminum housing, wetted components made of 316 stainless steel. The DP5 stands for the differential pressure measurement range code, S represents smart 4-20mA+HART output, 22 means 316SST process flange and 316SST isolation diaphragm. Reference accuracy reaches ±0.1% of calibrated span, with high turndown ratio for flexible on-site range adjustment. It supports linear or square root output for flow calculation, and can perform zero/span calibration via HART communicator or local adjustment screws.

It uses 2-wire loop power supply. Built-in self-diagnosis function can detect sensor fault, electronics failure and abnormal loop condition. The transmitter can withstand high static working pressure and strong overpressure impact. Operating ambient temperature range is -40℃ ~ +85℃, suitable for harsh industrial field environments. Optional local indicator displays real-time differential pressure value. The modular design separates sensor capsule and electronic assembly for easy maintenance and replacement.

1151DP5S22 is obsolete Rosemount differential pressure transmitter spare part. Many legacy process systems still run 1151 series measurement loops. When the original transmitter fails, replacement with identical 1151DP5S22 can reuse pressure tapping piping, signal cable and DCS configuration. Technicians install the unit, complete zero calibration and verify HART communication, so differential pressure measurement loop resumes operation and reduces production downtime.

Before shipment, every 1151DP5S22 undergoes comprehensive functional inspection including pressure calibration, 4-20mA output test, HART communication verification and pressure chamber leakage inspection. All products come with 12-month warranty. Our automation technical team provides remote support for installation, piping guidance, parameter configuration and fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, 1151DP5S22 is reliable spare differential pressure transmitter for legacy Rosemount 1151 process measurement systems. It restores accurate differential pressure acquisition and signal transmission, guarantees stable flow and level monitoring, extends service life of process assets and avoids whole measurement loop renovation.