Overview
The Rosemount 1151GP7E12M1B3 is a flange-mounted gauge pressure transmitter designed for industrial process measurement and control. With a 0–300 PSIG measurement range, 700 PSI maximum pressure rating, and standard 4–20mA analog output, this unit delivers reliable pressure data to DCS, PLC, and analog control systems. Although discontinued in 2011, the 1151 series remains widely deployed across manufacturing, chemical processing, oil & gas, and utilities sectors. This used unit represents a cost-effective drop-in replacement for legacy systems requiring proven, field-tested equipment.
Key Features
- Measurement Range: 0–300 PSIG (gauge pressure)
- Maximum Static Pressure: 700 PSI overrange capability
- Output Signal: 4–20mA DC, user-configurable for linear or square-root response
- Accuracy: ±0.075% reference accuracy (post-manufacturing improvements)
- Flange-Mounted Design: Direct-mount installation on process connections
- Proven Reliability: Over 5 million units deployed globally; 40+ years of industry service
Technical Specifications
- Pressure Range: 0–300 PSIG
- Overrange Limit: 700 PSI maximum
- Output Type: 4–20mA DC
- Output Codes: E (analog electronics), J (variant option)
- Configuration: GP7 (gauge pressure, 7 = specific range calibration)
- Weight (without meter): 12 lb. (5.4 kg)
- Weight (with meter): 15 lb. (6.8 kg)
- Wetted Materials: Stainless steel, carbon steel (verify specific materials for your application)
- Fill Fluid: Silicone oil (standard) or alternative per configuration
- Electronics Option: Analog (Code E12 indicates analog output module)
Typical Applications
- Compressor discharge and inlet pressure monitoring in HVAC and refrigeration systems
- Hydraulic system pressure measurement in industrial machinery and presses
- Steam system gauge pressure on boilers and heat exchangers
- Process fluid pressure in chemical reactors, mixers, and batch processes
- Air system pressure in pneumatic control and automation loops
- Pump discharge and system pressure in water treatment and utilities
Compatibility & Replacements
Compatible With
- Analog 4–20mA input modules on Allen-Bradley PLCs (SLC-500, MicroLogix, CompactLogix with analog I/O cards)
- Siemens S7 series PLCs with analog input cards (SM321, SM331, SM334)
- Honeywell TPS, DCS, and legacy control systems accepting 4–20mA signals
- Yokogawa, ABB, Emerson, and other DCS platforms with standard analog inputs
- Distributed control systems (DCS) and building management systems (BMS) with 4–20mA receivers
- Industrial recorders, data loggers, and analog monitoring equipment
Replaces / Drop-In Replacement For
- Rosemount 1151GP7 (prior versions without the E12M1B3 configuration suffix)
- Rosemount 1151DP7 (differential pressure, same flange mounting and electronics if reconfigured)
- Honeywell ST3000 gauge pressure transmitters in 4–20mA output (verify pressure range compatibility)
- Foxboro I/A transmitters in equivalent pressure range
Note: Verify compatibility with your system integrator before ordering. Consult the original equipment manual for pressure port thread sizes, flange ratings, and fill-fluid compatibility with your process fluid.
Works With
- 4–20mA analog input circuits (0–20 mA safe current-limiting loops recommended)
- HART (Highway Addressable Remote Transducer) communication protocol (if equipped with optional HART module)
- Pneumatic reducing valves and analog instrumentation relays
- PLCs with analog-to-digital (A/D) converters rated for 4–20mA signals
- Legacy and modern SCADA systems with analog signal conditioning
