Because the efficiency of an airport depends ion the quality of its installations on the ground, FB Technology developed, in association with the Technical Services of the Aviation, the system of control PAC ( Photometric Airfield Calibration).
Three years of research were necessary to develop this system which analyzes and determines the quality of a light in comparison with the standards ICAO. As a supplement to these measures, PAC supplies a continual help to the services of maintenance.
Three years of research were necessary to develop this system which analyzes and determines the quality of a light in comparison with the standards ICAO. As a supplement to these measures, PAC supplies a continual help to the services of maintenance.
Optimising maintenance works and stocks :
PAC is a mobile system for evaluating all inset and elevated lights. The test report provides the candela value of each light, and identifies any defect requiring action to be taken. It also makes it possible to monitor lamp ageing from previous runs so that all the results for a runway or taxiway can be compared.
This enables the airfield lighting department to plan its operations and manage its stocks as efficiently as possible. If the lamp is not defective although the system indicates a low intensity, the identification facility guides the search and thus optimises maintenance operations.
The system is installed on the front of a standard vehicle. Measurements are made in real time as the vehicle travels over the lights at a speed up to 80 km/h.
The luminous intensity detected is fed to a data processing program which stores and processes several thousand values for each light.This technique provides the average intensity of the main beam in candelas, its maximum intensity, as well as the colour and elevation settings of the lights.PAC can be used to evaluate any light source shining on its surface giving an illumination of more than 50 lux.
Certification and calibration :
Each unit manufactured by FB Technology is calibrated and certified on the basis of a specification drawn up by the S.T.N.A. (Technical services - French Directorat Civil Aviation Authority)
Extract of PAC report :
Technical data :
Description of the supply :
The system is supplied in a carrying case : 
- The measurement strip,
- The electronic processing interface box,
- The distance measurement device,
- The PAC software installed on a PC,
- Operator manuel
- Training
Installation : The system can be installed on any vehicle.
The customer can have this done by FB Technology or can do it himself, in which case he must have his installation checked by a FB Technology engineer.
The distance measuring device is mounted on the side of the vehicle.
The electronic unit is enclosed in a protective carrying case and fitted in the vehicle.
Operating conditons :
Weather condition : Dry conditions, wet surface acceptable
Displacement speed : Up to 80 km/h 
Déviation maximum : +/- 10%
Déviation standard : +/- 5%
Measurement range : Up to 30.000 candelas
- BETA (dgps) : Identification and localisation of each light fitting, using GPS coordinates
- PAC LAB : Workshop photometry controller
Guarantee and calibration :
The system is supplied with a full 1-year guarantee. After the guarantee period, a maintenance contract is required to cover yearly calibration and software updates.
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Fitting Id., elevation, maximum and minimum average, isocandela diagram
