쿵쿵
带温度变送器(隔爆)热电?
ƣ¶ȱ()ȵż/
˵
  Ӧ  

    ͨʾDZ¼DZӼʹã4-20mAֱӲֳ̼Ȼȱը-200-1300淶ΧҺ塢 Լ¶ȡ

  ص  

4-20mAǿ
ʡ߼װ¶ȱã
ʡΧ
¶ԶУ· 

  ԭ  

    ȵż裩ڹ״̬õȵƣ裩ı仯¶ȱĵŲƽźţŴתΪ4-20mAźŸDZDZʾӦ¶ֵ
    ȵż裩ü϶ԭǻڷըʱͨӺ϶ϨȴʹըĻ¶ȴǻ⣬Ӷв¡ȵż裩ȵƣֵ¶ȱĵŲƽźţŴתΪ4-20mAֱźŸDZDZʾӦ¶ֵ

  Ҫ  

Ʒִб׼
IEC584
IEC751
IEC1515
JB/T5518-91
JB/T7391-94  

  Χʲ  

    1ȵ·Χʲ
  ·Χ ȵȼ ƫ
  WZPB Pt100 -200-+500
A  B
(0.15+0.002ItI)
(0.30+0.005 ItI)
WZCB Cu50  Cu100 -50-+100 (0.30+0.005 ItI)

    2ȵż·Χʲ
       
I II
ֵ ·Χ ֵ ·Χ
WRNB  K 1.5 -40-375 2.5 -40-333
0.004 ItI 375-1000 0.0075 ItI 333-1200
WRMB N 1.5 -40-375 2.5 -40-333
0.004 ItI 375-1000 0.0075 ItI 333-1200
WREB E 1.5 -40-375 1.5 -40-333
0.004 ItI 375-800 0.004 ItI 333-900
WRFB J 1.5 -40-375 1.5 -40-333
0.004 ItI 375-750 0.004 ItI 333-750
WRCB T 1.5 -40-125 1 -40-133
0.004 ItI 125-350 0.0075 ItI 133-1000

źţ 4-20 mA ص250䵼ߵ 100
ȵȼ
¶ȱȵȼ0.1  0.2  0.5
ʾȵȼģָʾʽ2.5;ʾʽ0.5.
Դ24V.DC10G
ȼIP65
ȼ
ͣdBT4   dCT5   dCT6
ʰȫͣiaCT6
Ե裺DZ߶֮ľԵӦС50.
Ӧʱ䣺
¶ȳֽԾ仯ʱDZĵźű仯൱ڸýԾ仯50%ʱ ͨt0.5ʾ¶ȱĽԾӦȶʱ䲻ȵż()Ӧȶʱt0.5֮һʱȵż()ӦʱΪDZӦʱ䣻 ¶ȱĽԾӦȶʱ䲻ȵż()Ӧȶʱt0.5Ķ֮һʱ¶ȱӦʱΪDZӦʱ䣻

DZĻӦȵż()¶ȱĺϳ

  ѡͷʽ  

 
쿵ŲƷ
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쿵ϵʽ
쿵ţɷ޹˾
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