Digital guide
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Yokogawa UT55A‑100‑100
- Product Name: Universal Temperature/Process Controller
- Model Series: UT55A Series Single‑Loop Controllers
- Technical Specifications: Input: universal sensor input (thermocouple, RTD, DC voltage, DC current); control output: relay output; auxiliary output: transistor output; sampling period: 50 ms; power supply: 100‑240 VAC 50/60 Hz; operating temperature: ‑10 °C to +50 °C; IP66 front‑panel protection
Detailed content
- Functional Features: High‑speed PID control; auto‑tuning; manual/auto switching; upper/lower limit alarms; heater burnout detection; digital communication; setpoint lock function
- Performance Parameters: Measurement accuracy: ±0.1% FS; control resolution: 0.1 °C for temperature inputs; anti‑windup PID function; noise immunity compliant with IEC 61000‑6‑2
- Material Composition: Impact‑resistant polycarbonate front panel; flame‑retardant ABS housing; corrosion‑resistant terminal blocks; high‑reliability control circuit boards
- Structural Characteristics: 1/4 DIN standard panel‑mount design; dual digital display for PV and SP; front‑panel sealed structure for dust/moisture resistance; modular terminal wiring
- Working Principle: Acquires real‑time process variable signals; calculates deviation between PV and target setpoint; outputs control signals via optimized PID algorithm to regulate heating/cooling or actuator devices
- Advantages: Compact high‑precision control; universal sensor compatibility; easy configuration; robust front‑panel protection; fast response; heater burnout diagnostic function
- Applicable Industries: Packaging machinery, plastic molding, food processing, laboratory ovens, industrial heating systems, environmental testing, textile manufacturing
- Installation Requirements: 1/4 DIN panel cutout mounting; ensure front‑panel sealing is intact; separate power and signal wiring; install in non‑corrosive environments
- Usage Precautions: Do not use in explosive atmospheres without certified enclosures; avoid overheating of relay output terminals; calibrate sensor inputs periodically; protect front panel from mechanical damage
