ADHT-Ex露点传感器是英国阿尔法公司一款防爆露点传感器，3限制、24V回路供电4-20mA信号输出。露点传感器自身防护等级在IP65，能够在恶劣场合使用。
The Alpha Moisture Systems Model ADHT-Ex is a 3 wire, 24V
powered 4-20mA dewpoint transmitter. The unit is fully self
contained in a robust casing with weatherproof protection to IP65,
making it ideal for use in heavy industrial environments.
ADHT-Ex操作非常简便。
Designed with the operator in mind, Model ADHT-Ex is extremely
easy to use and the digital dewSMART technology ensures accurate
and reliable readings with little or no maintainance.
ADHT适用于防爆场合，防爆等级Ex ia IIC T6，本安型传感器配合MTL安全栅可在危险区域使用。
Model ADHT is certified intrinsically safe to Ex ia IIC T6 for
use in hazardous areas using an MTL 2441B signal isolator for 110V
/ 240V AC operation or MTL 5042 for 24V DC operation.
传感器的测量范围从-110oC 覆盖到 +20oC露点。
Various ranges are available covering an overall range from
-110oC to +20oC dewpoint. The Model ADHT-Ex derives its power
directly from the signal isolator and it is configured to give a
linear 4-20mA signal for the chosen range.
· 3线式,24vdc,4-20mA输出,露点传送器
· 除可做饱和点校正和内部线性校正
· 准确度：+/-2℃ dew point
· 测量范围：over range -110 to +20℃
· 内建温度补偿
· 符合防爆安全 CENELEN Ex ia IIC T6,ATEX II 1G
· 附NPL可追溯校正书
