SANHUA TRANSDUCER (YCQB series)

Description

Sanhua YCQB Series: Features and Details

1. Core Function and Construction

• Function: Continuously measures refrigerant pressure and outputs a proportional ratiometric voltage signal.

• Technology: Uses a high-performance digital circuit and a superior pressure-sensing core (typically a ceramic or silicon-on-sapphire diaphragm) for maximum accuracy.

• Hermetic Design: The internal components are protected by epoxy resin injection, making the sensor extremely resistant to moisture and environmental contaminants.

• Housing: Robust stainless steel (SUS304) or brass housing, depending on the specific model and pressure range.

2. Technical Specifications

• Refrigerant Compatibility: Applicable for all common HCFC, HFC, HFO refrigerants (e.g., R410A, R32, R134a, R404A) and even CO2 (R744) for high-pressure models.

• Supply Voltage: 5V pm 0.25V DC (Standard excitation).

• Output Signal:

  • 0.5 to 3.5V: Optimized for Sanhua SEC series superheat controllers.

  • 0.5 to 4.5 V: Industry-standard ratiometric output for general PLC/controllers.

• Pressure Ranges: Diversified ranges from 0 to 10 bar (low side) up to 0 to 150bar (high-pressure CO2).

• Accuracy: High-precision options available with pm 0.8% FS (Full Scale) or standard pm 2.0% FS.

• Protection Class: IP66/IP67 (Dust-tight and protected against powerful water jets/immersion).

• Response Time: Ultra-fast, typically <10 ms.

 Model Designation Key

When looking at an YCQB part number:

• YCQ: Pressure Transmitter

• B: Voltage Output (versus C for Current/4–20mA output)

• 02 / 05: Pressure range indicator (e.g., 20 bar, 50 bar)

• L / H: Connection type (L = Thread/Flare, H = Solder/Brazed)