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  1. Products
  2. Sensors
  3. Flow sensors / flow meters
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  5. SR307A

Control monitor for flow sensors

SR307A

VS4000/24VDC/EXI/1G

Control monitor for flow sensors

SR307A

VS4000/24VDC/EXI/1G

  • For applications in hazardous areas
  • Integrated flow, temperature and wire monitoring
  • Intuitive setting of switch point and medium
  • For the connection of intrinsically safe flow sensors
  • Clearly visible multi-colour LED bargraph display
  • ce
  • ukca
  • ex
  • iec
Application
Application Flow monitoring; Temperature monitoring; Wire monitoring
Electrical data
Operating voltage tolerance [%] -15...15
Operating voltage [V] 24 DC
Current consumption [mA] 100
Reverse polarity protection no
Power-on delay time [s] 10
Number of channels 1
Outputs
Performance in case of a fault Relay de-energised in case of the following faults: wire break, reverse polarity or short circuit of the sensor cable, undervoltage, internal fault
Electrical design relay
Contact rating 4 A (250 V AC cos phi > 0,7) ; 0,2 A (250 V DC); 4 A (24 V DC)
Switching function flow monitoring relay energised when flow is present
Switching function temperature monitoring relay de-energised when temperature is exceeded
Short-circuit proof no
Overload protection no
Software / programming
Adjustment of the switch point programming buttons
Operating conditions
Ambient temperature [°C] -20...60
Storage temperature [°C] -25...80
Protection IP 20
Protection rating terminals IP 20
Tests / approvals
Approval CSANe 21ATEX2238; IECEx CSA 21.0044
ATEX marking II (1) G [Ex ia Ga] IIC
II (1) G [Ex ia Ga] IIB
MTTF [years] 124
Mechanical data
Weight [g] 368
Housing housing for DIN rail mounting
Dimensions [mm] 104.5 x 32.5 x 113.6
Materials PA
Displays / operating elements
Display
fault LED, red
function LED, bar graph
switching status LED, yellow
Electrical connection
Required protection miniature fuse to IEC60127-2 sheet 1; ≤ 5 A; fast acting; Place the fuse outside the hazardous area.
Remarks
Remarks
Caution The control monitor must be mounted outside the hazardous area.
Recommendation Check the safe functioning of the unit after a short circuit.
Pack quantity 1 pcs.
Electrical connection
Connection terminals: 15 x ...2.5 mm²
Other data
Maximum values for control circuit
in protection rating intrinsic safety [Ex ia Ga] IIC [Ex ia Ga] IIB [Ex ib Gb] IIC [Ex ib Gb] IIB
Voltage [V] 9.6 9.6 9.6 9.6
Current [mA] 332 332 332 332
Power [mW] 531 531 531 531
External inductance [mH] 0.3 1.2 0.3 1.2
External capacitance [µF] 3.15 25.55 3.15 25.55