Operation Manual - Page: 17
NV-300T/301T Man: 9910 Soft: 2.xx
MAINTENANCE
Cleaning:
An accumulation of dirt in the equipment can act as a screen preventing proper
dissipation of the heat generated by the internal electronic circuits with the
consequent danger of overheating and DRO fault.
Accumulated dirt can also, in some cases, provide a conductive path for electricity
which could give rise to faults in the internal circuits of the equipment, especially
in high humidity conditions.
To clean the equipment nonabrasive dish-washing detergents are recommended
(in liquid, never powder form) or 75% isotropic alcohol with a clean cloth. DO
NOT USE aggressive solvents, (benzol, acetones, etc.) which could damage the
materials the equipment is made with.
Do not use high pressure compressed air to clean the item as this could give rise
to an accumulation of charges which in turn lead to electrostatic discharges.
The plastics used in the front panel of the DRO stand up to:
1. Grease and mineral oils.
2. Alkalis and bleaches.
3. Dissolved Detergents.
4. Alcohol
Avoid the effect of solvents such as Chlorohydrocarbons, Benzol, Esters and
Ethers because these could damage the plastics with which the front of the
equipment is made.
Preventive Inspection
If the DRO does not come on press the rear switch for starting, make sure it is
properly connected and being supplied with the proper mains voltage.