Liquid Flow Sensors PLF2000
Optimized for Medical, Life Science, and Lab Automation
Posifa’s PLF2000 Series liquid flow sensors are a MEMS-based platform optimized for ultra-low liquid flow control in compact medical, life science, and lab automation equipment. With measurement ranges from 0–30 mL/min up to 0–200 mL/min, PLF2000 sensors help designers achieve stable, repeatable microflow delivery where even small deviations can affect assay integrity, dosing accuracy, or experimental outcomes.
FEATURES
- Ultra-low flow ranges optimized at ≤ 200 mL/min
- Fast response around 100 ms for tighter control in small-volume loops
- Very low pressure drop with a straight, unobstructed flow path
- No moving parts for long-term stability and fewer recalibration events
- Push-to-connect fitting option to simplify manifold and tubing integration
BENEFITS
- Improve dosing accuracy and reduce risk of overshoot
- Reduce reagent waste and lower per-test cost
- Achieve stable closed-loop control in small-volume systems
- Minimize backpressure impact through low pressure drop
- Extend service life with solid-state construction and no moving parts
- Simplify pump, cartridge, and manifold integration with a compact, tubing-friendly form factor
- Support both legacy and modern architectures with analog + I²C outputs
PLF2XXX APPLICATIONS
- Lab automation reagent delivery that benefits from reduced waste and more consistent test results
- Microfluidics and organ-on-chip perfusion where tight flow stability protects cell health
- Flow cytometry and cell sorting fluidics where controlled delivery improves repeatability
- Benchtop and production bioreactors where precise flow helps maintain target process conditions
- Rodent infusion pumps for pharma research where accurate microdosing supports cleaner data
- Infusion and micro-infusion pumps where preventing dosing overshoot is critical
- HPLC and analytical instruments where stable low-flow measurements support consistent runs
- Compact medical devices where predictable flow control improves safety margins
| Model | Typical flow range | Outputs |
| PLF2003 | 0–30 mL/min | Analog, I²C |
| PLF2040 | 0–40 mL/min | Analog, I²C |
| PLF2005 | 0–50 mL/min | Analog, I²C |
| PLF2010 | 0–100 mL/min | Analog, I²C |
| PLF2020 | 0–200 mL/min | Analog, I²C |
| Specifications | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Ranges | 30, 40, 50, 100, 200 | ml/mm H20 | |||
| Analog Output | 0.5 | 4.5 | V | ||
| Accuracy | ± 10 | Reading | 5 ~ 40 °C | ||
| Resolution | 1 % | Reading | |||
| Repeatability | 2 % | Reading | |||
| Response Time¹ | 100 | ms | |||
| Supply Voltage | 5 | VDC | We recommend using 1% voltage regulator | ||
| Operating Current | 22 | mA | |||
| Operating Temperature | 5 | 40 | °C | ||
| Storage Temperature | -25 | 80 | °C | ||
| Materials | Nylon, silicone & food-grade waterproof coating (NSF/ANSI 61 compliant) | ||||
Please contact Precision Measurement Technologies for technical support, sample requests, pricing and ordering information: call 727-532-6144