- Simple, fast and precise measurement of illuminance (Lux) according to the V-lambda curve for all common light sources
- Wide range of applications due to LED compatibility (except single-colour blue LED)
- Fast in-app configuration, graph history, second screen and measurement data memory in the testo Smart App
- Audible alarm sounds if a limit value is exceeded
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- Measurement range: 0.1 lx to 200,000 lx (lux)
- Intrinsic uncertainty without compensation:
± 3% of the reading on incandescent sources (default)
± 6% of the reading on LEDs (3,000 K to 6,000 K)
± 9% of the reading on fluorescent sources
- Min, Max, Average, MAP and Hold functions, lx or fc / Backlighting
- Recording up to 1 million points
- USB or Bluetooth interfaces
- IP50 casing
- Casing dimensions: 150 x 72 x 32 mm / Sensor: 67 x 64 x 35 mm
- Weight: 345 g with batteries
- Compatible with the Multifix accessory
- Shockproof protective sheath available as an accessory
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- Illumination measurement up to 200 klux (20 kfc)
- Manual zeroing with trimmer
- Correction of spectral response
- Manual range of measurement
- MAX/MIN function
- Data Hold function
- DC analogue output (mV)
- Selection between lux or ft measurement mode
- Low battery indication
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HT309 is digital light meters used to measure illuminance up to 20kLux (HT307) and 400kLux (HT309) through a silicon photodiode sensor.
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Each MAVOPROBE is balanced prior to shipment and can be connected immediately to any MAVOMASTER.
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- Measuring angle : 1°
- Accuracy:
- Class B according to DIN 5032-7 in all chapters and DIN EN 13032-1, Appendix B
- Optical system : Stray light error ambient light (fs (u) < 2%)
- Field of view : 15° diagonal
- Focusing distance : 1 m to infinity - focusing with external ring at the lens
- Light sensor : Silicon photo diode with V() filter (f1 < 3%)
- Luminance measuring unit : cd/m² or fL (selectable with DIP switches)
- Measuring ranges :
- Automatic measuring range selection 0.01 cd/m² to 99 990 cd/m² in four ranges or 0,003 fL to 29 187 fL in four ranges
- Measuring functions
- Luminance in cd/m² or fL (selectable)
- Luminance percentage
- Memory MEM
- Correction Factor CORR
- Measuring the illuminance (Lux) with GOSSEN Reflexion
- Standard ( optional accessory)
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- Measuring Ranges: 0,01 cd/m² to 19 990 cd/m² subdivided in 4 measuring ranges
- Resolution :
- MR I 0.01 cd/m²
- MR II 0.1 cd/m²
- MR III 1 cd/m²
- MR IV 10 cd/m²
- Measuring Rate: 2 measurements/sec.
- Display: Digital, 3 ½ digits LCD
- Accuracy: Classified according DIN 5032-7, Class B
- Standard supply: Luminance meter in transport case, Adapter disk, gLux Software incl. meter driver, USB cable, battery and instruction manual
- Accuracy class per DIN 5032-7
- Mavolux 5032 C USB : Class C
- Mavolux 5032 B USB : Class B
- Light sensor : Silicon fotodiode with V(λ)-filter
- Functions :
- Luminous intensity 10 to 190 000 lx , Autorange, Range Hold, Manual Range, displays Lux (lx)/ Footcandle (fc), Hold function and Max function for display.
- Measuring range Mavolux 5032 C USB
- 0.1 lx to 199 900 lx and 1 cd/m² to 1 999 000 cd/m² in 4 ranges (with Luminance Attachment)
- Measuring range Mavolux 5032 B USB
- 0.01 lx to 199 900 lx and 0.1 cd/m² to 1 999 000 cd/m² in 5 ranges (with Luminance Attachment)
- Measurement rate : 2 measurements per second
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- Measuring functions Illuminance 10 lx to 100 000 lx
- Measuring ranges Color rendering index Ra, R1 - R15
- Correlated color temperature per CIE 13.3
- Duv
- Peak wavelength
- Dominant wavelength
- Purity per CIE 15
- Chromaticity coordinates [x,y] per CIE 1931
- Chromaticity coordinates [u',v'] per CIE 1976
- Chromaticity coordinates [u, v] per CIE 1960
- Flicker index, %, frequency
- Spectral range 380 - 780 nm (VIS)
- Physical resolution ~ 1.8 nm
- Reproducibility 0.5 nm
- Integration time 10 ms – 3000 ms
- Functions Flicker compensation, temperature sensor and automatic zero-point correction
- Interface USB 2.0
- Interface protocol Disclosed Memory 4 GB Micro SD in battery compartment
- Memory mode Manual, auto
- Data format CSV
- Mains power pack 100…240 V (50/60 Hz) 0.15A
- Ausgang USB Buchse 5 V, 1 A
- Rechargeable battery Li-Ion 3.7 V - 890 mAh, replaceable
- Rechargeable battery life > 8 hours continuous operation
- Charging time approx.. 1.5 hours
- Dimensions 139 x 60 x 30 mm
- Weight approx. 200 g
- Scope of delivery Aluminium case, wallet, rechargeable battery, USB cable, power pack, carrying strap, 4 GB micro SD card, instructions
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- For quick ‘n easy measurements in the workplace
- Sensor is modelled on the spectral sensitivity of the human eye
- Hold function, min/max values
- Protective cap for safe storage
The testo 540 light meteris a quick and easy-to-use entry level model designed for measuring lighting conditions in the workplace.
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- Intuitive: clearly structured measurement menu for long-term measurement and determination of illuminance according to the V-lambda curve (suitable for all common light sources)
- Precise: standard-compliant accuracy according to DIN EN 13032-1 and class C according to DIN 5032-7
- Convenient: non-slip probe contact surface for convenient positioning at the measuring location
- Intelligent calibration concept
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