Kodak 1200I manual D. Power/Voltage Testers, Correct wiring Hot/neutral reverse, Missing hot

KODAK 1200i WIDE-FORMAT PRINTING SYSTEM

CAUTION: if neutral-to-ground voltage, above 6 volts AC, is present then a serious problem is present within the building's electrical system. Often a mis-wired connection or imbalanced phase load can cause

voltage/current to ‘bleed’ onto the ground line (commonly referred to as neutral-to-ground voltage) or a serious ground fault exists within the building. Immediately stop service on the printer. The printer is extremely dangerous to work on in this condition (with power applied) and is a personnel hazard. The problem, for the symptoms described in section A, cannot be fully diagnosed and/or corrected until the electrical system/receptacle is properly fixed. Inform the customer a certified electrician will need to be contacted to upgrade the electrical

system with a properly grounded outlet or to correct a neutral-to-ground voltage problem.

D. Power/Voltage Testers

1.In North America, basic receptacle testers are available for testing standard 110 volt receptacle/wall outlets for proper polarity and ground detection. These models are probably the fastest way in detecting improper wiring or the presence of a ground fault.

The three LEDs help the electrician or technician identify:

Correct wiring

Hot/neutral reverse

Hot/ground reverse

Missing neutral

Missing ground

Missing hot.

2.In other continents a simple voltage ‘screwdriver’ may be used, such as the inexpensive Stanley 3MM Voltage Tester. These tools are used to determine the presence of phase on a hot line (L), neutral (N) or even ground (G).

3.The universal test instrument is the voltmeter or multimeter which may be used to measure dc, ac, resistance, etc.

Technical Training Guide 71