Key Parameters
Parameter Specification
Model Yokogawa SCP451-51
Type Gauge Pressure Transmitter
Measuring Range 0-0.5 kPa to 0-40 MPa (multiple ranges)
Output Signal 4-20 mA DC (2-wire) / HART® protocol
Accuracy ±0.075% of span (including linearity, hysteresis, and repeatability)
Long-Term Stability ±0.1% of URL per 10 years
Process Connection 1/2" NPT female / other options available
Material Stainless steel (SUS316L) wetted parts
Display Optional LCD indicator (local readout)
Power Supply 10.5 to 55 V DC (4-20 mA loop powered)
Operating Temperature -40 to 85°C (-40 to 185°F)
Ambient Temperature -40 to 85°C (-40 to 185°F)
Storage Temperature -50 to 100°C (-58 to 212°F)
Protection Rating IP66 / IP67 / NEMA 4X
Certifications ATEX, IECEx, SIL 2/3
Key Features
Silicon Resonant Sensor: Provides high accuracy and long-term stability.

HART® Communication: Allows remote configuration, calibration, and diagnostics.

Robust Construction: Suitable for harsh environments and corrosive media.

Easy Installation: Flexible mounting options and simple calibration.

Self-Diagnostics: Built-in fault detection and status alerts.

Global Certifications: Complies with international standards for hazardous areas.

Applications:

Oil and gas pressure monitoring

Chemical process control

Power plant steam and water systems

HVAC and refrigeration systems

Industrial machinery fluid pressure measurement