Chapter 2: Setting Up Your Scanner
Selecting a Good Location
18 Scantron OpScan 4ES and iNSIGHT 4ES Scanners
Selecting a Good Location
For best results, use the following general guidelines
for placing your scanner:
1. Air quality. The scanner works better and lasts lon-
ger when it is not exposed to a lot of dust.
2. Computer hookup. Place the scanner within 6 feet
of the computer to which it is to be connected.
NOTE: A Scantron scanner running SelfScore in a
stand-alone configuration does not need a
computer hookup.
3. Humidity. Place the scanner in a location with 40%
to 60% relative humidity. (If sheets have been in
very humid or dry conditions, keep them in a
climate controlled environment for 24 hours before
you attempt to scan them.)
4. Electrical noise. Avoid locating the scanner near a
generator or other type of large motor, such as an
elevator, an air conditioner, or a refrigerator that
produces electrical noise which might interfere
with the scanner’s electronics.
5. Power source. Use a separate source of power
(with surge protection) for the scanner. The circuit
from the source (breaker box) should not supply
power to a major piece of equipment other than
the scanner, computer, and (optional) Select
Stacker.
6. Space. Find a location that allows you plenty of
working surface around the scanner. The scanner
itself is 21 X 15 X 9 in. (54 X 37 X 23 cm).
7. Temperature. Place the scanner in a location with
temperatures between 60° and 85° F (16° and 29°
C).
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