Pearson OpScan iNSIGHT 70, Installation Manual

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Scanner Installation
Installing the Scanner
2-5
Checking the Voltage
Before you plug the OpScan i NSIGHT 70 scanner into the designated wall outlet,
the following power and grounding requirements must be met and maintained to
ensure optimum performance of the scanner and its peripherals. To verify that the
power and grounding requirements have been met, refer to the following topics:
Power Noise, Grounding, and Site Power Wiring Recommendations.
Power Noise
The OpScan i NSIGHT 70 scanner is designed to operate satisfactorily under
conditions of reasonable input power noise. Input power noise specifications are
as follows:
Grounding
Proper system grounding is extremely important to the safe and reliable
operation of the system. The OpScan i NSIGHT 70 scanner ground must meet two
requirements:
1.
It must serve as a return path for current in case of a short circuit between the
power line and the chassis of any system component.
2.
It must serve as the ground reference point for the OpScan i NSIGHT 70 system
components and data cables.
Table 2-1 Input Power Noise Specifications
Condition Description
Definitions
Surge or Sag - any sudden positive or negative excursion in the level of
the input voltage having a duration from 0.005 to 5 seconds.
Transient - any sudden positive or negative change in the level of the
input voltage having a duration of between 1 nanosecond and 5
milliseconds.
Limits No surge or sag shall exceed ± 15% of the normal rated voltage. However,
the surge or sag shall be considered acceptable provided its amplitude
does not exceed ± 50% of the normal rated voltage and it returns to the
steady-state rated level within 3 cycles of input power.
Recommendations
Dedicate a feeder line between the main building power panel and the
system branch circuit power panel serving the OpScan i NSIGHT 70
system.
If transients, surges, or sags outside of the limits stated above exist with a
dedicated feeder, do one or both of the following.
• Install a line conditioner to limit transients.
• Use a constant-voltage isolation transformer to control surges or sags.