SLI/SLS/SLG Series Liquid Flow Meter Kits

By Sensirion 93

SLI/SLS/SLG Series Liquid Flow Meter Kits

Sensirion's SLI, SLS, and SLG series liquid flow meters all feature a robust IP53 or higher protected housing and a 4-pin M8 connector. In combination with the SCC1 USB, RS485, or analog sensor cables, they provide a modular solution that covers a wide range of flow rates from single-digit nanoliters per minute up to several hundred milliliters per minute, and a suitable electrical interface for almost any environment. The SLI, SLS, and SLG series liquid flow meters are the first choice for standalone applications in industrial automation systems, laboratory set-ups, bench-top testing, and technology evaluation. The robust housing protects them from dust or accidental spills.

SLI Series
The SLI liquid flow meter enables fast, non-invasive measurements of very low liquid flow in the µl/min- to ml/min-range. Excellent chemical resistance is ensured; the flow path of the SLI liquid flow meter is formed by a simple, straight glass capillary. The fourth-generation MEMS sensors combine a thermal high precision sensor element with amplification circuits and digital intelligence for linearization and temperature compensation on one single microchip, the product’s core element. 

Features Applications
  • Liquid flow rate up to 10 ml/min
  • Non-invasive measurement
  • Interface options:
    • Digital: I2C bus, RS485 bus, USB cable
    • Analog: 0 V to 10 V, additional operation modes
  • 40 ms flow detection response time
  • General process monitoring
  • Pump controls
  • Monitoring of fuel flow
  • Lubricants dosage monitoring
  • Conformal coating
  • Leakage detection

SLS Series
The SLS-1500 liquid flow meter enables precise, non-invasive measurements of dynamic liquid flow rates up to 40 ml/min bidirectionally. Excellent biocompatibility is ensured by the exclusive use of high-performance stainless steel, PTFE, and PEEK for the wetted parts. The flow path of the SLS-1500 liquid flow sensor is formed by an especially thin-walled, straight tube which assures excellent sensitivity. 

Features Applications
  • Liquid flow rate up to 40 ml/min
  • High chemical compatibility
  • Interface options:
    • Digital: I2C bus, RS485 bus, USB cable
    • Analog: 0 V to 10 V, additional operation modes
  • 20 ms response time
  • Diagnostics
  • Analytical instruments
  • Biomedical devices
  • Industrial automation
  • Fuel cells

SLG Series
The SLG liquid flow meter enables precise, bidirectional measurements of dynamic liquid flow rates in the nl/min to low µl/min range. This device has been designed for ultra-high pressure applications in liquid chromatography systems (UHPLC). Excellent biocompatibility and chemical resistance is ensured by the use of fused silica, stainless steel, and PEEK for all wetted parts.

Features Applications
  • Ultra-low flow sensing in the nl/min range
  • Operating pressure up to 1200 bar (17,500 psi)
  • Interface options:
    • Digital: I²C RS485 bus, USB cable
    • Analog: 0 V to 10 V, additional operation modes
  • 40 ms response time
  • Liquid chromatography
  • High-pressure/ultra-low flow analytical instruments
  • Leakage testing
  • Microfluidics

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