Mobile Lab

The MBJ Mobile Lab 4.0 combines a TÜV certified Ed.3  A+ A+ A+ solar simulator  with a high-resolution electroluminescence test system according to IEC 60904-9. The mobile laboratory for solar modules enables standard-compliant and precise on-site testing at maximum throughput. In one shift up to 300 modules can be checked in detail.

The laboratory optionally includes up to 7 test methods. In addition to the power measurement and the electroluminescence, the basic scope includes connection testing and the test of the bypass diodes. Optional there are air conditoning, thermography, high voltage measurement, grounding test and other add ons available.

MBJ MobileLab 4.0 Container
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General data

  • General Data
  • Efficient loading of modules upright by one person
  • Combined processing and storage of all inspection results
  • Integrated software interface for the operation of all test steps
  • Easy management of module parameters and measurement jobs
  • Module sizes up to 1050 mm x 2120 mm (WxH)
  • Mono- and multicrystalline solar modules or thin-film modules
  • Test volume of up to 300 modules per day
  • Grid independent operation with generator (optional)
  • Air conditioning (cooling / heating) of the measuring chamber to STC (optional)
  • Standard construction variants:
  • Machine installed into a system container
  • Installed into a car trailer (inside EU sales only)    
  • Extra charge:
  • System container on car attachments (inside EU sales only)

Technical details

  • LED Solar Simulator / Flasher:
  • TÜV certified LED light source according to IEC 60904-9 Ed.3
  • Class A + spectrum
  • Class A + long term instability (LTI) <+/- 1%
  • Class A homogeneity inaccuracy <+/- 1.5%
  • Homogeneously illuminated area (W x L) 980 mm x 2120 mm
  • Irradiance 200-1000W / m² (adjustable in 200W / m2 steps)
  • Long pulse,> 200ms at full irradiance
  • Lifetime of LED light source> 1 million flashes
  • Repeatability Pmax (flash to flash) <0.2%
  • Built-in monitor cell
  • Current / voltage measuring range up to 14A, up to 260V  
  • Electrical Tests:
  • Connection test through the complete module
  • Test of the bypass diodes
  • mispolarization
  • Elektroluminescene-testing system: (Mobile Lab only)
  • Four CMOS cameras, 4 megapixels each
  • Solar module is scanned with up to 12 images
  • Image resolution ~ 300μm / pixel, equivalent to ~30 megapixels for the field of view
  • Shutter speed frame less than 1 second
  • Cycle time for complete image capture less than 20 seconds
  • Current supply of the modules up to 250V and 12A


  • Air conditioning:
  • Integrated air conditioning system
  • Enables STC temperatures inside the container
  • High efficiency, less than 1000W power consumption
  • Thermography:
  • MBJ handheld camera on Optris basis
  • 160x120 pixel microbolometer
  • Fully integrated with the software, live view on 24 "monitor
  • Automatic energization, adjustable
  • Manual image recording with the drawer pulled out
  • HiPot and grounding test:
  • Test voltage adjustable up to 6,000VDC
  • Test current adjustable from 3A to 30A
  • Test time adjustable from 0.1s to 999s
  • Contacting the high voltage via module plug (no plugging)
  • Contacting the earthing via box terminals with carbide tips

Designed for mobile use

The Mobile Lab was developed by a team of specialists and with the know-how of MBJ Solutions, a leading provider of test equipment for module production, especially for on-site testing and now again improved in the fourth generation.

It includes all the measuring and testing methods required for an objective judgement of the solar modules on site. Under-performance but also hidden defects such as micro-cracks or inactive areas as well as hotspots in the module can be detected quickly and reliably.

MBJ MobileLab 4.0 Trailer