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IFM SF321A Flow sensor for connection to an evaluation unit


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SKU: SF321A Categories: , , Tag:


  • For applications in hazardous areas
  • Reliable monitoring of liquids and gases in pipes
  • For connection to an evaluation unit
  • Robust design for use in harsh industrial enviro
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Product characteristics
Probe length L [mm] 12
Process connection G 1/2 external thread
Media Liquids; Gases
Medium temperature [°C] -20…70
Pressure rating [bar] 30
Medium temperature [°C] -20…70
Medium temperature [°C] -20…70
Electrical data
Connection to control monitor VS2000 Exi (PTB 01 ATEX 2075)
Measuring/setting range
Probe length L [mm] 12
Setting range [cm/s] 3…300
Greatest sensitivity [cm/s] 3…60
Setting range [cm/s] 200…2000
Greatest sensitivity [cm/s] 200…800
Accuracy / deviations
Temperature gradient [K/min] 15
Response times
Response time [s] 1…10
Response time [s] 1…10
Response time [s] 1…10
Operating conditions
Ambient temperature [°C] -20…70
Protection IP 67
Tests / approvals
Approval DMT 03 ATEX E091; IECEX BVS 06.0007
ATEX marking
II 2G Ex ia IIC T4 Gb
Shock resistance
DIN IEC 68-2-27 40 g (11 ms)
Vibration resistance
DIN IEC 68-2-6 10 g (55…2000 Hz)
MTTF [years] 8648
Safety classification
Max. internal capacitance [nF] 1.2
Max. internal inductance [µH] 6
Temperature class T4
Mechanical data
Weight [g] 456
Housing threaded type
Materials stainless steel (1.4404 / 316L)
Materials (wetted parts) stainless steel (1.4404 / 316L)
Process connection G 1/2 external thread
Installation length EL [mm] 45
In principle, the type test according to 94/9/EC (ATEX) only takes atmospheric conditions into account (0.8…1.1 bar).
For pressures outside this range use must be assessed and approved by the user.
Adhere to the operating instructions and the type test certificate.
Pack quantity 1 pcs.
Electrical connection
Connection Cable: 6 m, TPE-S; Maximum cable length: 100 m; 5 x 0.34 mm²

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