Thermal flow sensor FRS

volumefor process monitoringair

Overview
Accurate and consistent inlet flow is critical to Delivered Dose Uniformity (DDU) and Aerodynamic Particle Size Distribution (APSD) testing. The Flow Rate Sensor FRS from Copley Scientific provides the required range and accuracy to measure and verify inlet flow in inhaler testing systems, supporting reproducible results.

Product description
Designed and manufactured using Copley Scientific expertise, the FRS delivers reliable inlet flow measurement for DDU and APSD workflows. The sensor is intended for use with Copley flow controllers to determine and control test flow rates within optimised OINDP testing systems.

Key features

• Volumetric mode: calculates flow rate from live temperature and pressure readings
• Standard mode: calculates flow rate from pre-set temperature and pressure conditions
• Bi-directional air flow measurement
• Rapid data output for analysis and archiving
• Low flow resistance to minimise impact on system flow

Connectivity and reporting
The FRS interfaces with external devices (for example Breath Actuation Controller BAC 100i, Critical Flow Controller TPK 100i and PC) and provides flow and calibration data via RS-232 for reporting and archive purposes.

Applications
Measurement and monitoring of inlet flow at the induction port or DUSA during inhaler testing to support DDU and APSD procedures and reduce variability caused by inaccurate or inconsistent test flows.

Technical specifications

• Operation principle: Thermal (MEMS)
• Standard flow rate range: -200 to +200 StdL/min
• Standard flow rate resolution: 0.1 StdL/min
• Standard flow rate accuracy: Typically ±1.75% of reading; Maximum ±2.5% of reading or ±0.2 StdL/min, whichever is greater
• Volumetric flow calculation: Accurate calculation from in-built temperature and pressure sensors
• Flow resistance: < 4 kPa at 200 StdL/min
• Volumetric flow calculation (flag): Yes
• Inlet filter: Required
• Connectivity: Interface to external devices such as Breath Actuation Controller (BAC 100i), Critical Flow Controller (TPK 100i) and PC
• Reporting: Flow rate and calibration data via RS-232
• Power: 5V DC, mains power supply provided