Temperature Controller ZL 636A

Introduction

The ZL-636A-R is a thermostat with RS485 communication functionality, using the Modbus protocol. It features a real-time clock (RTC) for accurate time and date management. The front panel has an IP65 protection rating. This device is suitable for applications such as cold storage, seafood storage, water heaters, and more.

Main Functions

• Cooling or Heating Mode: Controls temperature for both cooling and heating modes.
• RTC (Real-Time Clock): Supports 8 defrost times and energy-saving settings based on weekdays.
• Intelligent or Timer Defrosting: Provides intelligent or timer-based defrosting options.
• Fan Control: Manages fan operation.
• Temperature Calibration: Allows calibration of temperature readings.
• High/Low Temperature Alarming: Alerts when temperature exceeds preset thresholds.
• Temperature Output Delay Protection: Protects against delays in temperature control output.
• Sensor Failure Alarm: Detects sensor malfunctions.
• Multifunctional Digital Input: Supports multiple digital input types.
• RS485 Modbus Communication: Enables remote monitoring and control via Modbus.

Technical Specifications

• Sensor Type: NTC (R25℃ = 5K, B25/50℃ = 3470K).
• Temperature Range:
  • Setting Range: -40.0 to 99.9℃.
  • Display Range: -50.0 to 99.9℃.
• Power Supply: 185 ~ 245Vac, 50/60Hz.
• Sensor Cable Length: 2 meters.
• Load: 3A, 10A, 250Vac (resistive load).
• Storage Conditions: -30℃ to 70℃, in dry air.
• Operating Conditions: -10℃ to 45℃, humidity ≤ 85% RH (no dew).
• Case Material: PC + ABS, fireproof.
• Protection Level: IP65 (only the front panel).
• Dimensions:
  • Device Dimensions: L78 x W34.5 x D71 mm.
  • Installation Drilling Dimensions: L71 x W29 mm.
• Wiring Terminal: ≤ 2 * 1.5mm² or 1 * 2.5mm².

Applications

• Cold Storage: Controls temperature for food storage in cold environments.
• Seafood Storage: Manages temperature for seafood preservation.
• Water Heaters: Regulates temperature for water heating systems.

With its intelligent features and remote control capabilities via Modbus, the ZL-636A-R is an optimal solution for temperature control in industrial and residential applications, ensuring stable and safe operational performance.