Velleman-projects K8039 Assembly instructions Manual do Utilizador descarregar pdf (Página 12)

25. Check-up

Check-up

CAUTION: MOST PARTS OF THE CIRCUIT CARRY DANGEROUS VOLTAGES (MAINS) !

OBSERVE ALL SAFETY REQUIREMENTS THAT MIGHT APPLY !

MOUNT THIS KIT PREFERABLY IN AN ISOLATING HOUSING.

Check the optical isolation between the mains voltage terminals (SK1 and SK2) and the DMX connecter

terminals (SK4) by means of a multimeter (fig 2.0). Resistance should be infinite.

Make sure you mount the appropriate fuses: F1 (5A) protects the outputs against overload but not against

short circuits! A short circuit will damage the TR1 triac. F2 (100mA) protects the electronic parts on the

circuit.

Never install higher value fuse !

Fig. 2.0

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Velleman-projects K8039 Assembly instructions Manual do Utilizador Página 12