IFM SI5010 Thermal Flow Sensor Overview
The IFM SI5010 is an advanced thermal flow switch engineered by IFM Electronic for monitoring liquids and gases in industrial pipelines. Utilizing calorimetric measuring principles, this dependable device provides precise flow detection and integrated temperature monitoring without restricting media flow.
Technical Specifications & Electrical Data
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Manufacturer: IFM Electronic
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Part Number: SI5010
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Operating Voltage: 19…30 V DC (to SELV/PELV)
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Current Consumption: < 50 mA
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Protection Class: III
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Electrical Design: DC PNP
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Output Function: Normally open / normally closed programmable
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Max. Voltage Drop: 2.5 V DC
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Permanent Current Rating: 250 mA DC
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Short-Circuit & Overload Protection: Yes (pulsed)
Application & Measuring Range
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Media Compatibility: Water, oils, coolants, and gases
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Setting Range for Liquids: 3…300 cm/s
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Setting Range for Gases: 200…2000 cm/s
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Medium Temperature Range: -25 °C to 80 °C
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Pressure Rating: Up to 30 bar
Outputs & Accuracy
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Switching Output: 1 digital switching output (flow or temperature monitoring)
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Repeatability: 1…5 cm/s
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Switch Point Accuracy: $\pm 2…\pm 10$ cm/s
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Power-on Delay Time: 10 s
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Response Time: 1…10 s
Mechanical Design & Environmental Ratings
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Enclosure Protection: IP67
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Housing Material: Stainless steel (316L / 1.4404); PBT-GF20; O-ring: FKM
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Process Connection: G 1/4 internal thread
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Ambient Temperature Range: -25 °C to 80 °C (operation)
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Weight: 114 g
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Electrical Connection: M12 connector (A-coded, 4-pole, gold-plated contacts)
