Why does Biotek Measuring Instruments channel fail noise test during optics test?
- JJennifer PittsAug 18, 2025
If the Biotek Measuring Instruments channel fails a noise test (greater than 20 counts) during an optics test, it could be due to several reasons: * Electrical noise penetrating the measurement chamber (check bottom and top shrouds for proper electrical shielding). * A floating or disconnected coaxial cable ground. * Ambient light leak (ensure the plate carrier door is properly closed). * A faulty analog PCB or noisy photo-detector. * Faulty internal grounding.