漢威 LCD顯示 比例式 恆溫恆濕控制器 Honeywell R7428A Constant RH & Temperature Controller

請來信詢價

  • 美國品牌
  • 比例積分數位控制器(高精確度)
  • 用於恆溫以及相對濕度控制, 且高經濟效益的解決方案
  • 搭載大型LCD背光螢幕
  • 操作簡易的人機介面
  • 高精確度控制: 溫度可精確至0.1°C ;濕度可精確至0.1%
  • 內建EEPROM, 斷電時可保留原本設定值
  • PID比例積分控制
  • 內建組態設定, 無需寫入程式
  • 溫度&濕度雙數據顯示
  • 可選擇將AO正向/反向輸出
  • 感測器錯誤提示
  • 24VAC 50/60Hz
  • AI x3, DI x3
  • AO x3, DO x3

描述

Honeywell R7428A Constant RH & Temperature Controller

  • R7428A1006 Controller uses direct digital control technology to provide accurate and efficient operation for both Relative Humidity and Temperature controls of heating, ventilation, and air conditioning (HVAC) systems. Parameters are preset for plug and play operation and provide different control strategies for optimum system performance.
  • The controller performs proportional plus integral and deviation (PID) control and covers all space, supply air, water flow, heater and humidifier applications within the specified ranges of 0℃ to 100℃ for temperature and 10% to 99% for relative humidity. Standard NTC 20K ohm temperature sensors can be used.
  • The modern design with its easy to operate user interface and large LCD allows complete flexibility of control system design, accurate parameter setting, and display of actual temperature and relative humidity value, setpoints and outputs.

Features:

  • Cost effective solution for constant temperature and relative humidity control.
  • Large LCD screen with back-light provides user-friendly MMI.
  • Standard DIN rail or control panel mounting compatible.
  • High resolution provides accurate control: 0.1°C for Temp & 0.1% for RH.
  • Temp & RH value setting provides direct digital control.
  • Preserve setting value while power failure.
  • PID (Proportional Integral Deviation) control.
  • Pre-configured application, no programming needed.
  • Provide dual display for both Temp & RH.
  • Selectable direct/reverse acting analog output.
  • Sensor failure indication.

額外資訊

Mounting

Standard DIN rail or control panel
mounting compatible

Wiring

Maxima Wiring Run from Controller to All
devices: 20 AWG

Control ranges

SP1: 0~100℃
SP2: -999℃~1000℃
SP3: -99-1000

Working ranges

0 ~ 50℃
5% ~ 95% (non-condensing)

Memory

EEPROM

Power supply

24 Vac, 50/60Hz

Input

DI x 3: DPS, Remote, Alarm
AI x 3: (Selectable)
4~20mA or 0~10V (Humidity)
4~20mA or NTC20K (Outside Air)
4~20mA or NTC20K (Return Air)

Output

DO x 3: Fan, Q1, Q2
AO x 3: Cooling Valve, Heating valve, Humidifier

功能

斷電記憶, 類比輸出, 聯網型(一對多), 比例式運算