Overview
The Rosemount 1151GP9E22L4 is a gauge pressure transmitter from the industry-standard 1151 series, featuring a 0–1500 PSI (0–320 bar) measurement range and 4–20 mA analog output. Discontinued in 2011 after over 40 years of industry service, this model delivers proven reliability for legacy and new installations requiring cost-effective pressure measurement. The Alphaline configuration supports diverse process applications where stable, long-term performance is critical.
Key Features
- Measurement Range: 0–1500 PSI (0–320 bar) gauge pressure
- Output Signal: 4–20 mA DC, linear
- Proven Reliability: Over 8 million installations worldwide
- Application Flexibility: Configured for gage, differential, and absolute pressure measurements, and used as integrated solution for various flow and liquid-level measurements
- Process Compatibility: Multiple wetted materials and alternative fill fluids ensure process compatibility
- Long Service Life: Known to offer long-term and reliable performance
Technical Specifications
- Pressure Range: 0–1500 PSI (0–320 bar)
- Output: 4–20 mA DC
- Transmitter Type: Gauge Pressure (GP)
- Configuration: Alphaline
- Electronics: Analog
- Weight: 12 lb without meter; 15 lb with meter
- Accuracy: ±0.1%–±0.075% (dependent on model variant)
- Status: Discontinued (2011), Available in Used/Surplus Condition
Typical Applications
The Rosemount 1151GP9E22L4 is suited for:
- Chemical and petrochemical processing
- Water/wastewater treatment
- Oil and gas operations
- Power generation facilities
- HVAC and refrigeration systems
- Legacy system replacements and upgrades
- Applications requiring proven, stable analog pressure monitoring
Compatibility & Replacements
Compatible With
- Standard 4–20 mA analog control systems and PLCs
- Data acquisition systems (DAQ) with 4–20 mA input modules
- Analog pressure gauges and recorders
- Process control loops requiring linear analog feedback
- SCADA systems with analog I/O
Replaces / Drop-In Replacement For
The Rosemount 1151GP9E22L4 is a direct replacement for other 1151GP variants with the same pressure range and output. Verify part number configuration before ordering to ensure electrical and mechanical compatibility with your installation.
Works With
- 4–20 mA analog instrumentation and control networks
- Allen-Bradley, Siemens, Mitsubishi, Omron, and other major PLC analog input modules
- Standard industrial analog signal conditioning equipment
- Legacy and modern process control architectures
