❓ Frequently Asked Questions (Q&A)

Q1: What is the “ST‑110” designation in FS‑SMSB‑ST‑110?
A1: “ST” indicates a structural stem or extension variant, and “110” designates the model’s unique version (often the stem length or version number).

Q2: Is FS‑SMSB‑ST‑110 for continuous measurement or just binary switching?
A2: It is a binary switch sensor (digital), detecting when a fluid interface reaches the sensing tip and toggling a discrete output.

Q3: How fast does it respond?
A3: The typical response time is ≤ 10 milliseconds, sufficient for most alarm or control tasks.

Q4: Can it operate in corrosive fluids?
A4: Yes, its wetted materials (stainless steel and resistant polymers) are selected for broad chemical compatibility.

Q5: What mounting options does it support?
A5: It can be mounted using threads, flange fittings, or via its stem extension to position the probe deeper into a vessel.

Q6: What is the operating temperature range?
A6: –20 °C to +80 °C. Outside that range, performance or longevity may degrade.

Q7: Does it need calibration?
A7: No user calibration is typically required; it is factory configured. Periodic checks are recommended in demanding applications.

Q8: What if the sensing tip becomes coated or fouled?
A8: Coating or deposit buildup can interfere with switching; occasional cleaning or inspection is recommended.

Q9: How is the digital output integrated with control systems?
A9: The switch output connects to PLC or logic inputs. Use appropriate pull-up or pull-down resistors or input conditioning as required.

Q10: What is its expected switching life?
A10: It exceeds one million switching cycles, ensuring reliability in repetitive use scenarios.