❓ Frequently Asked Questions (Q&A)

Q1: What does “ST” indicate in the model FS‑SMSB‑ST‑100?
A1: “ST” likely denotes a structural or stem-type variant — often meaning the sensor includes an extended stem or special mounting configuration compared to standard models.

Q2: Is this sensor for continuous measurement or just on/off detection?
A2: It is a point-level switch sensor. It detects when a fluid (or interface) reaches a preset height and outputs a binary signal.

Q3: What switching speed can be expected?
A3: The typical switching response is ≤10 ms, fast enough for many control and safety tasks.

Q4: Can it withstand corrosive fluids?
A4: Yes. The wetted materials are chosen for chemical compatibility (stainless steel and resistant polymers) to endure many process fluids.

Q5: How should it be mounted?
A5: It can be mounted via threads or insertion ports. The stem extension allows placement deeper into a vessel or past insulation lining.

Q6: What temperature range can it handle?
A6: The working range is –20 °C to +80 °C, covering most industrial environments.

Q7: Is calibration required before use?
A7: No user calibration is generally needed. The sensor comes factory-set. Periodic checks are recommended in critical systems.

Q8: What if the sensing tip gets coated or fouled?
A8: Coatings or deposits can lead to false signals or missed detection. Keep the tip clean in dusty or particulate environments.

Q9: How is the output integrated into control systems?
A9: The digital output connects to PLC digital inputs, relay circuits, or logic systems. Use proper pull-up or pull-down resistors as per your system.

Q10: What is the expected switching life?
A10: The electrical and mechanical durability exceeds one million switching cycles, ensuring longevity in repetitive use.