SISCO microwave level switch is a frequency-difference capacitive level switch, an alternative to vibrating fork and tuning fork types. With self-calibration and no moving parts, it ensures stable accuracy and low maintenance, engineered for high-temperature and noisy environments, compact and rugged for industrial liquid level point detection.
High-Precision Frequency Difference Measurement
- Delivers 0.2mm ultra-fine resolution across the full 0–10m measuring span for precise and reliable control.
- Automatically compensates for dielectric variations across different process media, eliminating manual recalibration needs.
- Provides robust resistance against electrical noise and mechanical vibration commonly found in industrial settings.
- Maintains consistent measurement accuracy even under extreme heat and high pressure over extended periods.
Intelligent Self-Calibration & Robust Reliability
- Automatically optimizes sensitivity and zero-point settings without requiring any user intervention or manual adjustment.
- No moving parts ensure maintenance-free operation and long-term stability throughout the entire service life.
- Built-in protection effectively guards against reverse polarity, overload, and short circuits for safe system operation.
- Compact 30×30×10mm housing with rugged IP67-rated stainless steel enclosure for harsh industrial conditions.
Applications
SISCO microwave level switch is ideal for liquid and bulk solid point level detection in chemical, petrochemical, food processing, and metallurgical industries, replacing vibrating fork and tuning fork switches in high-temperature, high-pressure, and corrosive environments.
Chemical Industry
Food Industry
Metallurgical Industry
Petroleum Industry
| Model | SISCO-LS-300PC |
| Parameter | Value |
| Measurement Range | 0 – 10 m |
| Resolution | 0.2 mm |
| Supply Voltage | 18 – 30V DC |
| Process Connection | G1/2" external thread |
| Wetted Parts Material | PEEK, 316L stainless steel |
| Housing Material | 304 stainless steel |
| Electrical Connection | M12 x 1 plug-in connector |
| Enclosure Rating | IP67 |
| Response Time | ≤ 100 ms |
| Process Pressure | -1 to 40 bar |
| Vibration Frequency | 300 ± 50 Hz |
| Vibration Resistance | 10G / 0 – 500 Hz |
| Shock Resistance | 50G / 1 ms |
| Current Consumption | ≤ 35 mA |
| Protection Functions | Reverse polarity, overload, short circuit |
Dimensions (unit: mm)
Wiring Method
Q1: What media can this capacitive level switch measure?
A1: This microwave level switch can measure various liquids including water, oils, chemicals, and corrosive media, as well as bulk solids like powders and granules, thanks to its PEEK and 316L wetted parts that resist corrosion and wear.
Q2: How does it compare to a vibrating fork or tuning fork level switch?
A2: Unlike vibrating fork and tuning fork level switches that rely on mechanical oscillation, this capacitive level switch has no moving parts, eliminating wear and sticking issues. It also handles wider dielectric variations and extreme temperatures, offering greater long-term reliability as an industrial level switch.
Q3: Why is this microwave level switch better than a vibrating fork level switch?
A3: No. This liquid level switch features a built-in intelligent self-calibration system that automatically adjusts parameters for consistent accuracy. It requires no manual calibration or routine maintenance, saving time and reducing operational costs.
Tips: How to choose the right level switch for your application?
- Consider your media type. This capacitive level switch works with liquids and solids, but for sticky or coating media, a vibrating fork level switch may be more suitable.
- Evaluate temperature and pressure. If your process involves extreme heat, this microwave level switch performs reliably as a high-temperature level switch, while other types may fail.
- Assess maintenance needs. Unlike tuning fork level switch alternatives, this industrial level switch features no moving parts and self-calibration, significantly reducing upkeep requirements for point level detection.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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