
User Manual DCX Series 400 W 7
Safety instructions
The general safety instructions and symbols must be observed during all
phases of operation of this instrument. Failure to comply with these
precautions or with specific warnings or instructions givens in this manual
violates safety standards of design, manufacture, and intended use of the
instrument. Scientific assumes no liability for the customer's failure to comply
with these requirements.
- Before applying power, verify all the safety precautions are taken, make all
the connections firm.
- Make sure the protective ground of the unit is connected with system
ground.
- Always operate the instrument only in prescribed operating conditions.
- Do not modify the instrument. This instrument is designed to meet all the
safety and operating conditions. Any modification done may not be
complying to the safety requirement and instrument may be damaged,
causing hazardous conditions.
Environmental conditions
Please do not operate the instrument in the place that vibrates, dusty, under
direct sunlight or where there is corrosive air. The Scientific Power supplies are
designed for safety, applies to following conditions.
- Indoor use.
- Ambient temperature 0 ~ 50°C non condensing 75% RH , 0~40°C non
condensing 95% RH
- Altitude up to 3000 meters
- Pollution degree 2
Installation category
These instruments are designed for installation category II, Over voltage
category II.
Grounding
The instrument ground must be well connected to instrument chassis of AC
power mains input supply. The instrument must be connected through
three conductor power cable, with the ground wire firmly connected to the
electrical safety ground of power outlet. Any interruption in protective
ground conductor , or disconnection will cause potential hazard that might
cause personal injury.