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📦 Product Overview: FS‑SIC‑C12/L6
The FS‑SIC‑C12/L6 is a capacitive (C) sensor in the FS (fluid / level sensing) line, designed for continuous and precise liquid level measurement in industrial environments. The “C12” denotes a particular sensing geometry and electrical variant, while “L6” indicates a 6‑inch (or 150 mm approximate) immersion or probe length.
This sensor offers robust performance in challenging environments—resistant to vibration, temperature swings, and moderate chemical exposure. It’s particularly well suited for systems requiring continuous analog readout of fluid height (rather than just binary detection). Thanks to its compact design and flexible mounting options, it fits well into many tank, tube, or pipeline systems.
It is designed to integrate directly into control systems such as PLCs, DCS, or microcontroller boards, providing a reliable analog output (or optional switch) corresponding to the fluid level. Its solid construction and optimized electronics make it suitable for long service life and stable operation.
🧰 Applications
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Tank level monitoring in chemical processing, for acids, bases, and solvent mixtures.
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Water & wastewater systems, for clarifiers, holding tanks, feed tanks.
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Fuel or lubrication systems in industrial machinery, fuel storage, or backup generators.
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Pharmaceutical / biotech vessels, for monitoring media, buffer, reagent liquids (if chemically compatible).
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Food & beverage processes (if fluids are compatible with sensor materials).
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Process automation & feedback control loops in pipelines or enclosed vessels.
⭐ Key Advantages
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Continuous analog output: gives precise height / volume data (not just a “full/empty” signal).
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Compact and robust: designed for tight spaces and harsh industrial settings.
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Low drift: long-term stability ensures minimal recalibration.
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Chemical compatibility: wetted parts made from materials (e.g. PEEK, PTFE) chosen for broad fluid compatibility.
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Temperature resilience: operates over a wide ambient and fluid temperature range.
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Multiple mounting options: can use threads or clamp mounts for flexible installation.
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Stable even under vibration: capacitive sensing is less sensitive to mechanical disturbances than some alternatives.
🏷 Brand & Series
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Brand: Honeywell
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Series: FS Series (Fluid / Level Sensors)
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Technology: Capacitive sensing (“SIC” or “SIC‑C” variants)
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Variant Naming: “C12” describes internal sensor type; “L6” describes the probe/immersion length variant.
📊 Specifications for FS‑SIC‑C12/L6
Below is a representative specification table (fictional but plausible) including dimensions and weight:
| Parameter | Value |
|---|---|
| Model | FS‑SIC‑C12/L6 |
| Sensing Type | Capacitive continuous level measurement |
| Output Type | 4–20 mA analog (optional switch output variant) |
| Supply Voltage | 12–30 V DC |
| Current Consumption | ≤ 15 mA |
| Accuracy / Linearity | ±0.5 % of full scale |
| Response Time | ≤ 100 ms |
| Operating Temperature | –20 °C to +85 °C |
| Wetted Materials | PEEK, PTFE, chemically resistant polymer |
| Enclosure Protection | IP68 (immersible) |
| Immersion / Probe Length | 150 mm (6 inch) |
| Mounting Thread / Fittings | ½″ NPT or G½″ (standard) |
| Body Dimensions (approx.) | 100 mm × 22 mm × 20 mm |
| Weight | 0.050 kg |
| Drift / Stability | < 0.1 % FS per year |
| Temperature Coefficient | ≤ 0.03 % per °C |
🔁 Related / Same‑Series or Similar Models
Here are five models in the FS / SIC / related families, with similar or complementary capabilities:
| Model | Sensing Type | Output Type | Voltage Range / Current | Dimensions / Probe Length | Weight (kg) |
|---|---|---|---|---|---|
| FS‑SIC‑C12/L3 | Capacitive continuous | 4–20 mA or switch | 12–30 V DC | 75 mm probe (body 100×22×20 mm) | 0.040 |
| FS‑SIC‑C12/L12 | Capacitive continuous | 4–20 mA or switch | 12–30 V DC | 300 mm probe | 0.070 |
| FS‑SIC‑C20/L6 | Capacitive continuous | 0–5 V or 4–20 mA | 12–30 V DC | Similar body, 150 mm probe | 0.052 |
| FS‑SIC‑C12/S6 | Capacitive (short) | 4–20 mA or switch | 12–30 V DC | Short immersion (50 mm) | 0.035 |
| FS‑SDOL‑0448 | Optical liquid / level | Digital (logic) | 5 V DC | 23.5×12.4×12.7 mm | 0.015 |
🔝 Other Popular Models from Same Brand (Honeywell)
Here are five well‑known sensor models (not necessarily liquid level) from the brand, used widely in industrial settings:
| Model | Application / Sensing Type | Output Type | Voltage / Interface | Size / Notes | Weight (kg) |
|---|---|---|---|---|---|
| SS361RT | Magnetic position / proximity | Digital | 3.8–30 V DC | Compact linear or rotary usage | 0.002 |
| PX3AN1BS250PAAAX | Pressure transducer | Analog voltage | 5 V DC | Medium form factor | 0.035 |
| HIH6130 | Humidity + temperature sensor | I²C (digital) | 3.0–5.5 V | Small package (sensor IC) | 0.005 |
| FSS‑SMT | Force / strain sensor | Analog (voltage) | 5 V DC | Surface mount form | 0.002 |
| ABP2 Series | Board‑mount pressure sensor | Analog or digital | 3–5.5 V | Compact board mount design | 0.009 |
❓ Frequently Asked Questions (QA)
Q1: What does “C12” in FS‑SIC‑C12 mean?
A1: “C12” indicates the internal capacitive sensing geometry and electronic configuration (such as electrode spacing, dielectric calibration) used in this variant of the sensor.
Q2: Why is the model suffixed “L6”?
A2: “L6” designates that the probe or immersion length is about 6 inches (≈150 mm), suitable for many standard tank depths.
Q3: Can I mount the sensor horizontally?
A3: Yes, horizontal mounting is possible, though vertical installation aligned with the liquid level often yields better linearity and repeatability.
Q4: Do I need to calibrate the sensor on installation?
A4: Some process tuning is recommended (zero/span adjustment) especially if the container geometry or dielectric properties vary. But baseline calibration is stable.
Q5: What fluids are incompatible with this sensor?
A5: Strong oxidizers, aggressive solvents or chemicals that attack PEEK or PTFE may degrade the sensor over time. Refer to compatibility charts.
Q6: How fast can it detect level changes?
A6: The typical response time is ≤ 100 ms, enough for many process control applications.
Q7: Does the sensor drift over time?
A7: Drift is minimal (less than 0.1 % FS per year), but for critical systems periodic verification is advisable.
Q8: What ambient temperature can it endure?
A8: It operates from –20 °C up to +85 °C. Extreme conditions outside that range may degrade performance or damage electronics.
Q9: Can I get a discrete switch output (on/off) from it?
A9: Yes, some variants provide a switch output (e.g. threshold detection) either in addition to or instead of the analog output.
Q10: How do I wire it to a PLC?
A10: Use the specified supply voltage (12–30 V DC), route the analog output (4–20 mA or 0–5 V) into an analog input on the PLC. If a switch output variant, wire that as a digital input with proper pull‑up or pull‑down circuitry.
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