ALF 114 General Air Filter Test System
Automated test system for general ventilation air filters, supporting ISO 16890, EN 779 and ASHRAE 52.2 workflows with pressure-drop, gravimetric, fractional-efficiency and dust-holding measurements.
Model Overview
| Model | System role | Primary measurements | Standards / application fit |
|---|---|---|---|
| ALF 114 | General ventilation air-filter test system | Pressure drop, gravimetric efficiency, fractional efficiency and dust holding capacity | ISO 16890, ASHRAE 52.2, EN 779 and related general-air-filter methods |
Key Features
Standards-oriented testing
Supports ISO 16890, ASHRAE 52.2 and established EN 779 procedures.
Automated test sequences
Guided workflows, data acquisition and report generation support repeatable laboratory operation.
Energy and MERV evaluation
Test results can support energy-efficiency assessment and MERV classification.
Flexible filter mounting
Rotatable duct sections and a universal holding system simplify specimen installation.
Multiple aerosol types
Supports droplet, salt and ISO test-dust methods for different stages of filter evaluation.
PLC safety functions
Integrated control and safety functions support controlled operation of the high-flow test rig.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| PERFORMANCE | ||
| Test flow rate | m³/h | 600–6,000 |
| Differential-pressure range | Pa | Maximum 2,000 |
| Measured parameters | — | Pressure drop, gravimetric efficiency, fractional efficiency and dust holding capacity |
| TEST MEDIA & UTILITIES | ||
| Test aerosols | — | DEHS, KCl and ISO 12103-1 A2/A4 |
| Compressed-air supply | bar | Maximum 6 |
| Power supply | — | 3 × 400 VAC, 125 A, 50 Hz |
Values shown are based on the standard system configuration. Confirm the final test method, specimen fixtures, instrumentation, utilities and calibration scope before order placement.
Applications
General ventilation filters
Classification and performance testing of coarse and fine air filters.
ISO 16890 testing
Standardised fractional-efficiency and conditioning workflows.
Filter quality control
Repeatable acceptance testing and comparative production checks.
Energy-efficiency rating
Assessment of pressure drop and filter performance for energy-related classification.
