Download the IODD (IO Device Description) for SH0500 from ifm’s website. Without it, your master cannot interpret the data.
ifm electronic SH0500 is an airflow monitor designed specifically for monitoring air velocity in ducts and hazardous areas. Key Features Application-Specific Design
is critical for protecting pumps, chillers, and heat exchangers. Among the most trusted devices in this field is the IFM SH0500 flow switch. Known for its robust stainless steel housing and precise calorimetric measurement principle, the SH0500 is a staple in water, oil, and coolant loops. ifm flow switch sh0500 manual
A: Yes, but only via IO‑Link. In standard output mode, you must choose either FLO or TEMP for the switching output.
SH0500 indicates flow (output ON) even when pump is off. Manual solution: Check hysteresis. If flow decays slowly (e.g., gravity drain), set hysteresis to 30 cm/s. Fix: Change HY. from 10 → 30 cm/s. Reset point becomes S.P. – HY = 20 cm/s off delay. Download the IODD (IO Device Description) for SH0500
A: Press and hold both buttons simultaneously for 10 seconds until the display shows rES . Release. Confirmed by a triple flash.
The SH0500 is adjusted via a or teach button (depending on revision). The manual outlines: A: Yes, but only via IO‑Link
Reversing L+ and L– will permanently damage the electronics. Always use a fused power supply (≤ 500 mA).
If you encounter an issue not covered here, refer to the official PDF – especially Appendix C (error handling) and Section 5.4 (response time adjustment). For hardware failures beyond warranty, contact ifm’s technical support with the unit’s serial number.