【Trafag,8716,8726气体密度继电器,气体密度控制器】价格_厂家

型号

8716,8726,8736,8746

品牌

trafag

测量度

其他

类型

压力开关

显示方式

其他

测量范围

其他MPa

Trafag,SF6气体密度继电器,SF6气体密度控制器,8716,8726,8736,8746

应用于SF6和其它气体

Trafag,8716,8726,8736,8746,SF6气体密度继电器,气体密度控制器基本参数：

压力范围：0...1 MPa (0...1000 kPa)

输出：微动开关触点控制

适用温度：-30-50度

适用气体：SF6和其它气体

精度等级：

Reference pressure <650 kPa @ 20°C abs.:± <10 kPa @ -30...+50°C650 kPa abs.:± <12 kPa @ -30...+50°C

Trafag,8716,8726,8736,8746,SF6气体密度继电器,气体密度控制器产品特点：

Principle: Reference gas measurement测量原理参考室气体
Exact switching following isochore的微动开关
Excellent vibration resistance良好的抗振性
No false alarms at low temperatures在低温下不存在虚假报警
Stainless steel or aluminum sensor不锈钢或铝传感谢器
Galvanically separated circuits分立隔离电路
Switch point adjustment in factory工厂设定开关点

Application
High voltage technology

Main characteristics

    Gas Density Monitor for SF6 and other gases
? Principle:                    R eference gas measurement
? Measuring range absolute:    0...1.1 MPa
                                  (0...1100 kPa)
?  Output:                      floating change-over contact
? Switch point:                factory calibrated

Main features
? Exact switching following isochore at all temperatures
? Excellent vibration resistance
? No contact bouncing
? Either stainless steel or aluminium/stainless steel probe
? Independent, galvanically separated circuits

Ordering information

Specifications

    Main characteristics
    Principle:                   R eference gas measurement
    Measuring range absolute:    0...1.1 MPa(0...1100 kPa)
    Output:                      floating change-over contact
    Switch point:               factory calibration

   accuracy
    Reference pressure <650 kPa @ 20°C abs.:
                                ± <10 kPa @ -30...+50°C
    Reference pressure >650 kPa abs.:
                                ± <12 kPa @ -30...+50°C

   accuracy of indicator
    SF6 Indicator dial
      Accuracy of indicator within numeralised
      range:                    ± 10 kPa @ 20°C
    Low pressure indicator
      Accuracy of indicator within numeralised
      range:
      @ 0 kPa relative:        ± 20 kPa
      >200 kPa relative:        ± 10 %

    Micro switch
    Rating:                     see table
    Resistance of insulation:   > 2 MΩ
    Dielectric strenght:       2 kV terminal to ground
    Life time (mechanical)
      micro switch 20:         1 Mio. cycles
      micro switch 28:         10 Mio. cycles
    max. difference from the lowest to the highest
      switch point: 130kPa
    Switching differential typ.
      micro switch 20:         <15 kPa
      micro switch 28:          <10 kPa
        for indicating range or switching distance
        > 80 kPa:               <15 kPa

    Electrical connection
    Screwed cable gland:        see accessories
    Screw terminal:             plugable, 0.2...2.5 mm2

   environmental conditions
    Ambient temperature:        –40...+80°C
    Media temperature:          –40...+80°C
    Protection:                 IP67
    Humidity:                  max. 95% relative
    Vibration:
      @ min. 5 kPa distance from switch point no contact bouncing

      under 20...80 Hz:         4 g
    Vibration resistance:       100 Hz, 20g, 15 min.
    Shock:                      50g/ 11ms

    Mechanical data
    Material
      Measurement system
      Sensor:                   1.4435,1.4404, 1.4571
                                (AISI316L, AISI316)
        Filling:                  Gas
      Housing (density monitor): AIS i10Mg
    Screwed cable gland:         brass nickel plated
    Weight:                      ~ 800...1000 g
    Pressure connection:         1.4404 (AISI 316L)
                                 (see data sheet H72502)

Electrical data switch

Protection