Products RSJ-4 Loop Circuit Resistance Monitor
 
 
 
   
Product Detail
The RSJ-4 loop circuit resistance monitor is used when need to indicate the absence of the loop circuit resistance and give an alarm. The product has a 4-position switch to choose the operating power. When the load is normal, the normal state indicating lamp would be lighten up, the output contacts 4# and 3# connected ; while the connectors 2# and 1# disconnected. When the loop circuit resistance increased (for example ,because of the heaters aging or one of a heater which belong to a parallel connected heater opened circuit), the normal state indicating lamp would be turned off,while the alarm indicator lamp turned on , simultaneously the output alarm contacting status would be changed. Namely, when the corresponding operating power is absent or falling down to 20%,the accurate action could be make in time. The monitor also can sample the supply voltage and continuously revise the reference voltage value so that can avoid any misoperation when the power supply is fluctuating .This product is especially suitable for monitoring the heaters which are parallel connected .The device has some advantages like connected easily, installed conveniently ,strong ability to resist current impact and so on.



Features
                   Easy installation                    Strong resistance to current shock



Technical Parameters
          Rated voltage                 AC110V/220V           Start Current                 20%optional load absent
          Load power                    50W/100W/150W/200W           Ambient temperature                 -25℃~+55℃
          Defend class                   IP2X           Rated frequence                 50/60Hz
          Max monitoring current                  5A           Withstand resisting impact current                 20A/1S
         Power frequency withstand voltage                  2000V/min           Output contact capacitance          5A,250VAC or 30VDC
         Responding time                    <5s           Life time                   >100000H
         Dimension                     90*45*59                          






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