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SCP461-51 S1

The Yokogawa SCP461-51 S1 is a high-performance, single-loop digital indicating controller from the dedicated SCP (Single-loop Controller for Pressure) series. The -51 model variant is specifically designed for applications requiring a linear analog current output for control, unlike the relay output version (-11).

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(Key Parameters)
Parameter Category Specification for SCP461-51 S1
Model Yokogawa SCP461-51 S1
Type Digital Indicating Controller (Pressure Specific)
Input Signal Accepts signals from strain-gauge pressure sensors. The S1 suffix typically denotes a pre-configured input range, most commonly for sensors with a 0-10 MPa range. (Always verify on the unit's label).
Pressure Sensor Excitation Provides +24V DC sensor excitation power supply (max 30mA) to power the strain-gauge sensor directly.
Display Dual 4-digit LED (Red for PV, Green for SV)
Control Output Linear DC Current Output (Analog):
• 4-20mA DC (Load resistance: 0-550Ω)
This is used for continuous control, e.g., to an I/P converter or a variable speed drive.
Auxiliary Output Transistor Output (for alarm or other functions)
• Rating: 30V DC, 50mA max.
Control Action PID (Proportional-Integral-Derivative). Control action (direct/reverse) is selectable.
Power Supply 100-240V AC, 50/60Hz (Standard for this variant).
Mounting DIN 96x96mm panel cutout.
Key Features • Sensor Break Detection
• Heater Break Alarm Function (optional)
• PV Zero/Span Adjustment
• High/Low Limit Alarm
• Auto/Manual Control Mode