溫濕度變送器HMT120和HM

溫濕度變送器HMT120和HMT130

維薩拉HUMICAP®技術(shù)，選用濕度傳感器HUMICAP® 180R 

2線回路供電或3線電壓輸出配置 

可互換探頭(便于現(xiàn)場校準)
準確可靠
抗灰塵和多種化學品侵蝕
可選LCD顯示
可使用USB電纜與PC計算機連接，用于維護作業(yè) 
壁式安裝，或選用遠程探頭 
可選用恒流輸出探頭
可使用維薩拉安裝套件和維薩拉輻射護罩DTR502B在室外安裝使用
IP65級外殼
適合潔凈室和要求苛刻的暖通空調(diào)(HVAC)應用
 技術(shù)指標    
 
相對濕度 
?
量程                                                0 ... 100 %RH 
?0 °C ...+40 °C時的準確度 
(含非線性、遲滯性和可重復性)  ?                      ±1.7 %RH (0 ... 90 %RH)
                                                    ±2.5 %RH (90 ... 100 %RH) 
?  40 °C ...+0 °C和                                ±3.0 %RH (0 ... 90 %RH)                   
  +40 °C ...+80 °C時                              ±4.0 %RH (90 ... 100 %RH)
+20 °C (+68 °F)時的工廠校準不確定性 ?
                                                    ±1.5 %RH
濕度傳感器                                          維薩拉HUMICAP® 180R

溫度

量程 ?                                               -40 ... +80 °C  
?
溫度測量范圍內(nèi)的準確度
  +15 °C ...+25 °C時                              ±0.2 °C
  0 ...+15 °C 和+25 °C ... +40°C時               ±0.25 °C  
  -40 °C ...+0 °C 和+40 °C ... +80 °C時         ±0.4 °C
溫度傳感器                                           Pt1000 RTD 1/3B級 IEC 751
工作溫度范圍                         
  變送器主體,無顯示部件                              -40 °C ... +60 °C
  變送器主體,有顯示部件                              -20 °C ... +60 °C
  HMP110探頭                                         -40 °C ... +80 °C
貯藏溫度范圍                                         -50 °C ... +70 °C
電磁兼容性                                           EN 61326-1
                                                     及EN 55022
輸入與輸出

HMT120 兩線變送器(回路供電)
電流輸出信號                                         4 ... 20 mA
外線電壓                                             10 ... 30 VDC (RL= 0 ohms)   
                                                     20 ... 30 VDC (RL< 500 ohms)
HMT130 三線變送器
電壓輸出信號                                         0 ...1 V, 0 ...5 V, 0 ...10 V                                                   或用戶在0 ...10 V范圍自定義
最小輸出阻抗                                         1 kohm
串行輸出                                             RS485, 非隔離型
中繼輸出                                             1中繼 (50 VDC, 200 mA)
供電電壓                                             10 ... 35 VDC
                                                     15 ...35 VDC (輸出為0 ...10 V時)
                                                     24 VAC (±20 %)
                                                     8 mA,如關閉中繼則為15 mA
24 VDC時電流消耗                                     ±0.1 % (全量程輸出信號)
在+20 °C 環(huán)境溫度校準后，模擬輸出產(chǎn)生
的額外誤差

模擬輸出的溫度系數(shù)                                   ±0.005 % (全量程輸出信號)

其它指標
材質(zhì)
 
 變送器外殼                                         PBT 塑料
 顯示窗口                                           PC塑料
 探頭主體                                           不銹鋼(AISI 316)
 探頭格柵過濾器                                     鍍鉻ABS塑料
 外殼防護等級                                       IP65
接線
 輸入與輸出                                         螺旋接線柱 0.5 ...1.5 mm2
 探頭接口                                           4-針M8凹型面板連接器
探頭電纜長度                                        3 m、5 m、10 m – 最長50 m
顯示部件(選配)                                      128 x 64全圖形分辨率無背光B&W顯示
重量 (含探頭)                                       270克