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ZFX-13001 12V DC High Precision Capacitive Humidity Controller

ZFX-13001 12V DC High Precision Capacitive Humidity Controller

₹1,599.00Price
🔍 Overview
The ZFX-13001 is a digital humidity control system (humidistat) designed to:
  • Measure relative humidity using a capacitive sensor
  • Automatically control external devices (humidifier/dehumidifier) via a relay output
👉 It is not just a sensor — it is a closed-loop control device (measurement + decision + switching).
⚙️ Working Principle
1. Capacitive Humidity Sensing
  • Uses a polymer capacitive humidity sensor
  • Moisture absorption changes dielectric constant → changes capacitance
  • Internal circuitry converts this into digital humidity value
👉 Provides stable and accurate RH measurement over a wide range.
2. Control Logic (Humidistat Operation)
The controller compares:
  • Measured humidity (RH)
  • User-set threshold (setpoint)
Then controls output via relay:
Dehumidification Mode (H)
  • If RH > setpoint → relay ON
  • If RH drops to threshold → relay OFF
Humidification Mode (C)
  • If RH < setpoint → relay ON
  • If RH reaches threshold → relay OFF
👉 Includes hysteresis (difference value) to prevent rapid switching.
📊 Measurement Characteristics
  • Humidity range: 1% to 99% RH
  • Accuracy:
    • Typical: ±2% RH
    • Some variants: ±1% RH
  • Control resolution: 1% RH
👉 Wide range suitable for both dry and humid environments.
⚡ Electrical Characteristics
  • Supply voltage: 12V DC (also variants: 24V, 110V, 220V)
  • Relay output capacity: up to 10A load
  • Power consumption: ≤3W
👉 Can directly control:
  • Humidifiers
  • Dehumidifiers
  • Fans or exhaust systems
🔗 Control & Interface
Display & Input
  • LED digital display for:
    • Current humidity
    • Set values
  • Buttons for:
    • Setpoint
    • Mode selection
    • Hysteresis adjustment
👉 Provides real-time monitoring + configuration.
Sensor Interface
  • External probe-type humidity sensor with cable
  • Allows remote measurement placement
🧠 Internal Features
✔ Dual Mode Operation
  • Humidification mode
  • Dehumidification mode
✔ Hysteresis Control
  • Prevents relay chatter (rapid ON/OFF switching)
  • Improves system stability
✔ Power-Off Memory
  • Stores settings even after power loss
✔ Anti-Interference Logic
  • Reduces false triggering due to noise or fluctuations
🔄 Operating Behavior
✔ Automatic Control Loop
  • Measure humidity
  • Compare with setpoint
  • Activate relay
  • Maintain humidity within range
👉 Fully autonomous operation after configuration.
✔ Response Characteristics
  • Moderate response speed (depends on airflow around probe)
  • Stable long-term operation
🌡️ Environmental Characteristics
  • Typical operating temperature: 0°C to 70°C
  • Works in non-condensing humidity environments
👉 Sensor performance depends on:
  • Airflow
  • Temperature stability
⚠️ Limitations
  • Measures relative humidity only (not absolute moisture content)
  • Accuracy affected by:
    • Condensation
    • Poor airflow
  • Not suitable for:
    • Highly corrosive environments
  • Relay-based control → not ideal for ultra-fast switching
🧩 System Architecture
The module consists of:
  • Capacitive humidity sensor (probe)
  • Microcontroller (processing + logic)
  • Relay output stage
  • LED display + control buttons
👉 Combines sensing + processing + actuation in one unit.
🏁 Summary
The ZFX-13001 humidity controller is a complete humidity regulation system that:
  • Uses a capacitive humidity sensing method
  • Provides 1–99% RH measurement range
  • Supports automatic humidification/dehumidification control
  • Includes relay output (up to 10A load)
  • Offers stable, closed-loop environmental control
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