ifm Electronic SF221A Strömungssensor zum Anschluss an eine Auswerteeinheit

Product characteristics

• Probe length L [mm]: 12
• Process connection: G 1/4 external thread

Application

• Media: Liquids; Gases
• Medium temperature [°C]: -20...70
• Pressure rating [bar]: 30
Liquids
• Medium temperature [°C]: -20...70
Gases
• 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
Liquids
• Setting range [cm/s]: 3...300
• Greatest sensitivity [cm/s]: 3...60
Gases
• 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
Liquids
• Response time [s]: 1...10
Gases
• 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]: 350
• Housing: threaded type
• Materials: stainless steel (1.4404 / 316L)
• Materials (wetted parts): stainless steel (1.4404 / 316L)
• Process connection: G 1/4 external thread
• Installation length EL [mm]: 27

Remarks

• Remarks: 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 ran