HOFEKA Kft. 2142 Nagytarcsa, Cinkotai út 23.
Phone: +36 1 261-6338 Email: hofeka@hofeka.hu

Lighting laboratory

Our company has a unique lighting laboratory in Central Europe. With our GOV-1900 type goniophotometer manufactured by LMT and other measuring instruments, we can perform the following measurements.

Lighting measurements (goniofotometer):

•    Luminous flux
•    Luminous intensity
•    Illumination
•    Photometric distribution
•    Colour temperature

Electrical measurements:

•    Voltage [V], [Vpk]
•    Current [I], [Ipk]
•    Power [W][VAR][VA]
•    Frequency [Hz]
•    Power factor – PF
•    THDI
•    THDu
•    CFI

Temperature measurement:

•    10-channel temperature meter that allows the temperature of different components of luminaires to be measured simultaneously.

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Luminance meter

Our lighting laboratory has an LMT L1009 type lluminance meter, with which the lighting control measurements of the already implemented investments can be performed.

Features:

• angular fields 3°, 1°, 20′, 6′ selectable
• display range 0.0001 cd/m2 (last digit) to 19 990 000 cd/m2
• measuring distance approx. 0.50 m to infinity
• photometer head with Si-photoelement, fine V(λ)-approximation
• 3½-digit display in viewing field and external, display hold switch
• ranging auto/manual, analog output, V.24-(RS 232-) Interface
• built-in rechargeable battery, automatic recharging circuit
• separate AC adapter 230 V, 50-60 Hz, handgrip, carrying case
• calibration, traceable to PTB standard, with LMT calibration certificate
• individual test report for V(λ)-approximation

Options:

• achromatic close up lens 1 for measuring distance approx. 0.09 m to 0.10 m
• achromatic close up lens 2 for measuring distance approx. 0.25 m to 0.50 m
• optical bench rod, 10 cm
• glare lens
• AC adapter in US-version for 115 V, 50-60 Hz
• BCD output instead of V.24-(RS 232-) Interface
• additional angular field 2′, resolution 1 cd/m2
• alternatively: additional angular field 2′ × 20′, resolution 0.1 cd/m2
• alternatively: additional angular field 3′ × 10′, resolution 0.1 cd/m2
• alternatively: special angular fields

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IP laboratory

An IP testing laboratory has been set up at our headquarters, where we can currently measure and control the protection of luminaires against water (liquid) penetration.