Overview
The Georg Fischer Signet 159000906 (model 3-2450-7U) is a compact, cost-effective pressure sensor designed for level and pressure monitoring in industrial water, wastewater, and chemical processing applications. This pressure transmitter features a one-piece injection-molded PVDF body with a ceramic diaphragm, making it well-suited for corrosive liquid environments. The unit delivers a standard 4-20mA analog output signal, with IP65/NEMA 4X environmental protection.
Key Features
- Pressure range: 0–10 PSIG (–0.1 to +0.7 bar) with 20 PSIG proof pressure
- Pre-wired with 4.6 m (15 ft) shielded cable and bare-end flying leads
- 4-20mA analog output for direct PLC/controller integration
- PVDF housing and ceramic sensing element for chemical compatibility
- 1/2″ threaded male union process connection
- IP65/NEMA 4X rating; operating temperature range –15 to +85°C (–5 to +185°F)
Technical Specifications
- Pressure Range: 0–10 PSIG (–0.1 to +0.7 bar)
- Proof Pressure: 20 PSIG (1.4 bar)
- Output Signal: 4-20mA analog
- Supply Voltage: 10.8–26.4 Vdc (12–24 Vdc nominal)
- Cable Length: 4.6 m (15 ft), 3-core 22 AWG shielded
- Cable Termination: Bare-end flying leads
- Process Connection: 1/2″ threaded male union
- Housing Material: PVDF
- Sensing Element: Ceramic diaphragm
- Gasket Material: FKM
- Operating Temperature: –15 to +85°C process (–5 to +185°F)
- Protection Rating: IP65 / NEMA 4X
- Weight: 2.0 lbs (0.9 kg)
Typical Applications
The Signet 2450 series is ideal for:
- Water treatment and distribution systems
- Wastewater collection and processing
- Pump protection and pressure regulation
- Chemical processing and tank monitoring
- Irrigation and agricultural water systems
- HVAC pressure control
- Level sensing in corrosive environments
Compatibility & Replacements
Compatible With
- Any PLC or DCS accepting 4-20mA analog input signals (Allen-Bradley, Siemens, Omron, Schneider Electric, etc.)
- SCADA systems with standard analog sensor modules
- Flow meters and level transmitters using analog control loops
- Industrial data acquisition systems (DAQ) with 4-20mA input cards
Replaces / Drop-In Replacement For
- Direct replacement for Georg Fischer Signet 3-2450-7U
- Functionally compatible with other Signet 2450-series 0-10 PSIG pressure sensors
- Verify compatibility with your system integrator before ordering if replacing sensors from other manufacturers
Works With
- 4-20mA analog input modules (standard on all modern PLCs)
- Analog signal conditioning and transmitter input cards
- Industrial Ethernet gateways with analog signal support
- HVAC building management systems (BMS)
- Pressure monitoring and data logging software
