DBK EHT-2-220A Quick Start Manual

Types
EHT Electronic Hygrostat
EH T-2-220A - Normally open (dehumidifying) with frost protection

1. Application

Electrical controller for drying and providing frost protection in outdoor
enclosures.This electronic hygrostat is a fully electronic humidity sensing
switch with adjustable switchpoint setting between 15% - 90% RH in
increments of 5% RH. If humidity exceeds a set level or temperature drops
lower than 4°C, controller will switch anti-condensation device.

2. Safety Information

• The control should only be installed by qualified techniciansin accordance
with the respective national electrical codes.
• Safety and protection against incidental contact is to be ensured
through proper installation.
• The technical specifications (voltage and current) as stated on the
product must not be exceeded!
• The company charged with the installation of the device must instruct
the user of the control system into its functions and in how to
operate it correctly. These operating instructions must be kept at a
place that can be accessed freely by the operating and/or servicing
personnel in charge.

3. Installation Guidelines

• The unit is set to operate in NO - Dehumidifying mode. (NC version is
avaliable by special order.)
• The controller provides an extra dry contact which can be used to either
switch an independent load or act as a feedback contact for PLC.
• The device is to be installed on a DIN EN 60715 compliant standard rail,
please refer to section 6 for mounting and demounting.
• For applications not to be foreseen by the manufacturer of this device,
relevant safety standards should be followed and adhered to.
• Electrical connection of the devices are to be made in accordance with
connection diagrams as shown in section 8.
• This device is intended for installation in an enclosure that complies with
the protection class admitted for this purpose, such as a switch cabinet.
• Suitable for environmental conditions of pollution degree 2.

4. Technical Data

Contact :
Rated Voltage :
Switching Difference :
Max Switching Capacity
(Relay Output) :
Control Range :
Sensing element :
Connection Terminals :
Service Life :
Operating / Storage Temperature :
Degree of protection :
Protection Class:
Weight :
Housing :
Marking :
Version I086A-Manual_v1
EHT Electronic Hygrostat EHT电子湿控器
GB
2 NO (dehumidifying)
100 - 270VAC
~ 5% RH
8A @ 240/120VAC resist
15 - 90%RH, 20 - 95%RH
Electronic
0.5 ... 2.5 mm², terminal screws
> 50,000 cycles
0 ... 60°C / -20 ... 70°C
IP20
0 (protection class must be guaranteed
by installation location)
Approx 70g
Plastic
CE
类型
EHT电子湿控器
EHT-2-220A - 常开式(除湿)，有防冻保护
1.应用
本电子湿控器为户外机柜提供湿度控制及防冻保护。本电
子湿控器是一个全电子湿度感应开关，它的设定范围在
15％-90％RH之间，每级增量为5％RH。
的水平或温度低于 ，控制器将切换防结霜装置。
4° C
2.安全信息
•只有合格的技术人员才可以按照各自的国家电气规范为产
品进行安装作业。
•通过正确的安装才能确保对偶然接触的安全性和保护。
•不得超过产品上标示的电压和电流规格!
•负责安装的公司有责任向使用者说明产品的功能和使用方
法。操作指引必须被保存并方便操作和维护人员随时取
阅。
3.安装指南
• 产品设置为常开 - 除湿模式。(常闭模式需要特别订制。 )
• 机组提供了一 个额外的干接点，可用于切换一个独立的负载
或作为一个PLC信息反馈。
• 产品应安装在符合EN60715标准的DIN导轨上，请参照第6节的
安装和拆卸方法。
• 对于未在设计应用范围内的其他应用，须参照相关的安全标准。
• 产品的电路连接是根据第8节的连接图。
• 产品用于安装在符合其所需要安全等级的机柜内部（比如开关
机柜）。
• 适用于污染等级2的环境条件。
4.技术参数
接触:
额定电压:
开关湿度差:
开关电流
(繼電器輸出):
控制范围:
感应器:
连接方式:
使用寿命:
工作/储存温度:
外壳防护等级:
防触电保护等级:
重量:
外壳:
标示:
如果湿度超过设定
2 NO(除湿)
100 - 270VAC
~ 5% RH
8A @ 240/120VAC 抗性
15 -90% RH, 20 -95% RH
电子
0.5 ... 2.5mm², 螺丝紧固
> 50,000周期
0 ... 60°C / -20 ... 70°C
IP20
0 (由安装位置保证防护等级)
约70克
塑料
CE
CH