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Technical manual    BA 0113 

Filling level 

SRA – 100   8M

 

Filling level limit switch 

 

for conductive filling level supervision 

in electrical conductive liquids

 

Useable 

  for filling level resp. limit value detection in liquid container 

  as dry run protection for pumps 

  for two-position-control in plants

 

 

ATEX II (1) G [Ex ia Ga] IIB/IIC resp. ATEX II (1) D [Ex ia Da] IIIB/IIIC 

Certification for the connection of conductive level transducer in explosion 

hazardous areas

 

 

Measuring range adjustable up to 8M

 resp. 0,125µS/cm  

 

Different configurable switching delays 

 

Wide range power supply from 20 to 253V AC and DC 

 

 

L a u t e r b a c h s t r .   5 7   –   8 4 3 0 7   E g g e n f e l d e n   –   G e r m a n y  

T e l :   + 4 9   8 7 2 1 / 9 6 6 8 - 0   –   F a x :   + 4 9   8 7 2 1 / 9 6 6 8 - 3 0  

i n f o @ a c s - c o n t r o l s y s t e m . d e

 

 

w w w . a c s - c o n t r o l s y s t e m . d e

 

 

Summary of Contents for SRA-100

Page 1: ...ATEX II 1 G Ex ia Ga IIB IIC resp ATEX II 1 D Ex ia Da IIIB IIIC Certification for the connection of conductive level transducer in explosion hazardous areas Measuring range adjustable up to 8M resp 0...

Page 2: ...n 3 Function 3 4 Safety notes 5 Safety notes 5 Installation 5 Maintenance 5 Repair 5 Electrical connection 6 Operation and display elements 7 Technical data 8 Order code SRA 100 U0 8M Basic variant Ex...

Page 3: ...between the electrode and the metallic wall of the container resp pipe an alternating current flows that causes a decrease of the alternating voltage Signal evaluation An evaluation circuit supervises...

Page 4: ...safety function must be set identically for both channels CH1 and CH2 This can be carried out by two switches one per channel at the front side of the filling level limit switch Two position control...

Page 5: ...principally by specialist staff The device meets the classification II 1 G Ex ia Ga IIB IIC resp II 1 D Ex ia Da IIIB IIIC The device is conceived for detection of limit levels at liquids in explosiv...

Page 6: ...ading wires If more than two limit levels with the same reference potential should be evaluated several filling level limit switches could be connected in parallel For this purpose only the reference...

Page 7: ...FF Switch 4 function output relay S1 switch switching state ON switching state OFF 4 two position control s limit level function Switch 5 safety function channel 1 CH1 switch switching state ON switch...

Page 8: ...A 5 A at ATEX variant 300 W 100 W at ATEX variant 110 V 0 3 A 33 W 220 V 0 12 A 26 4 W Switching cycles 100 000 switching cycles at maximum contact load Signal inputs Level transducer One resp two fil...

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