Air Flow Control for Inhaler Testing – the FIA Way

Control and monitoring of the air flow is essential for performance testing of inhalation devices in accord with regulatory standards. FIA engineers have designed a user-friendly family of products that enable full compliance with the test requirements of the European Pharmacopoeia and the US Pharmacopeia.

FIA offers three models of flow controllers – basic to advanced – that put you, the USER, in control – repeatably, reliably.
– Need to coordinate MDI dosing and flow sequences? No problem.
– Need to ensure proper flow in real time for DPI testing? Yes.
Flow control, however you want it.

AND with the absolute minimum footprint…as small as 23×13 cm PLUS easy-to-read displays that work even when you wear gloves – “hands-on” equipment made with the analyst in mind.

Download the pdf ABFIA Air Flow control

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Trigger Box Model I – Basic

This model gives the analyst the basic functionality in a very compact and easily managed format.

Key features are:

  • Flow actuation: 0-99 min, 0.1s resolution
  • Actuation counter: Resettable, 8 digits
  • Foot switch: Optional
  • Display: 4 and 8 digits
  • P1 Measurement: No
  • P3/P2 Measurement: No
  • Flow Measurement: No
  • dP (e.g. stage dP): No
  • Printable data: No
  • Relay output for actuation of external equipment: No
  • Displayed history of recent actuation data: No
  • USB memory stick export: No
  • Automatic leak test: No
  • Dimensions (cm): 23x13x13

Trade Item Number: TriggerBox Model I

Trigger Box I

Trigger Box Model II – Critical Flow Controller

This model builds on the functions of Model I with the addition of differential pressure transducers for measuring and displaying pressure at P1, P2, and P3.

Key features are:

  • Flow actuation: 0-60 min, 0.1s resolution
  • Actuation counter: Resettable 0-999
  • Foot switch: Yes
  • Display: 4.3” touch
  • P1 Measurement: Yes, 0-16 kPa
  • P3/P2 Measurement: Yes
  • Flow Measurement: No
  • dP (e.g. stage dP): No
  • Printable data: Prints new actuations continuously
    • Flow ”on” time
    • Dose number
    • P1
    • P3/P2 (if < 0.5)
  • Relay output for actuation of external equipment: No
  • Displayed history of recent actuation data: Last 3 actuations
  • USB memory stick export: No
  • Automatic leak test: No
  • Dimensions (cm): 23x13x13

Trade Item Number: TriggerBox Model II

Trade Item Number: TriggerBox – Training and IQ Model II

Trigger Box Model II

TrB III Trigger Box – All-in-One Flow Controller

The TrB III Trigger Box ensures compliance with standard pharmacopeial methods, both recording and storing key system parameters, including the actual flow rate and run duration. Many inhaler test methods rely on critical flow conditions across the flow control valve, aiming to ensure the same flow rate on each test. But the TrB III does more – actually measures the flow of each test – so, there are no assumptions.

A calibrated laminar flow element (LFE) internal to each TrB III enables the user to set the flow rate at the beginning of a test sequence; with this LFE, the TrB III then records the flow rate of each test, ensuring against drift, leaks, and other non-ideal behavior that may introduce variability in test results. The TrB III also records the other more traditional run-time parameters, such as the test duration, the pressure drop across the inhaler device (P1), and the flow control pressure ratio (P3/P2, critical flow if ≤ 0.5). To measure pressure drop over, e.g., individual impactor stages to detect blockage, additional internal sensors are used.1

Additional user-friendly functions are leak checking and synchronized device actuation by using the integrated output port. Device actuation enables the flow to start simultaneously with dose actuation of a metered-dose inhaler, allowing a user- defined, fixed flow volume for MDI total dose testing.

Download AB Fia folder Trigger Box TrB III.

Key features are:

  • Flow actuation: 0-60 min, 0.1s resolution
  • Actuation counter: Resettable 0-999
  • Foot switch: Yes
  • Display: 7” touch
  • P1 measurement: Yes, 0-16 kPa
  • P3/P2 measurement: Yes
  • Flow measurement: Calibrated 0 – 120 l/min (operating range possibly higher)
  • dP (e.g. stage dP): Yes, high precision 0-6 kPa
  • Automatic leak test: Yes
  • Printable data: Prints new actuations continuously or print all actuations from reset.
    • Date/time of first dose
    •  Instrument ID
    • Instrument ver
    • Flow ”on” time
    • External relay timing
    • Atmospheric pressure
    • Dose number
    • P1 and flow
    • P3/P2 (if < 0.5)
    • dP (stage pressure drop)
  • Relay output for actuation of external equipment: Yes, configurable timing of output relative vacuum opening.
  • Displayed history of recent actuation data: All actuations from reset.
  • Interfaces:
    • Relay output for actuation of external equipment
    • Foot switch actuator
    • USB for CSV export
  • Dimensions (cm): 34x13x13

Trade Item Number: TriggerBox Model III

Trade Item Number: TriggerBox – Training and IQ Model III

Trigger Box Modell III