
Human Factors Guidelines for Setting Up Your Workstation
93
Local VDT guidelines issued by country, state, or municipality may apply
and supercede the guidelines in Table 6-1.
CAD Operator Preferences
If you work on a CAD system, you may feel more comfortable using the
ranges of adjustment shown in Table 6-2.
a. Derived from Grandjean, Etienne. Ergonomics in Computerized Offices. London: Taylor &
Francis Ltd., 1987, p. 148.
b. Negative tilt is a forward monitor inclination (top of screen toward the operator).
Table 6-1
ANSI/HFS 100–1988 Guidelines for VDT Workplace Adjustment
Adjustment
Small Adult
cm (in.)
Midpoint
cm (in.)
Large Adult
cm (in.)
Seat pan height
40.6 (16.0)
46.3 (18.2)
52.0 (20.5)
Work surface height
(keyboard/mouse)
58.5 (23.0)
64.75 (25.5)
71.0 (28.0)
Screen viewing height 103.1 (40.6)
118.1 (46.5)
133.1 (52.4)
Screen viewing
distance
>30.5 (>12)
>30.5 (>12)
>30.5 (>12)
Screen viewing angle
0-60 degrees
0-60 degrees
0-60 degrees
Table 6-2
Workstation Adjustments Preferred by CAD Users
Adjustments
a
Mean cm (in.)
Range cm (in.)
Seat pan height
54 (21.3)
50-57 (19.7-22.4)
Work surface height
73 (28.7)
70-80 (27.6 -31.5)
Monitor center above floor 113 (44.5)
107-115 (42.1-45.3)
Screen viewing distance
70 (27.6)
59-78 (23.2-30.7)
Work surface tilt
8.6 degrees
2-13 degrees
Monitor tilt
b
–7.7 degrees
–15 to +1 degree
Содержание CHALLENGE L
Страница 1: ...Deskside POWER CHALLENGE and CHALLENGE L Owner s Guide Document Number 007 1732 050 ...
Страница 7: ...Contents vii VME Pins 136 Index 143 ...
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Страница 12: ...xii Table E 3 P3 VME Pin Assignments 139 Table E 4 Signal Definitions 140 ...
Страница 28: ...12 Chapter 2 Touring the Chassis Figure 2 1 Chassis Front and Rear Views ...
Страница 52: ...36 Chapter 3 Getting Started Figure 3 3 Connecting an Ethernet Cable 15 pin Ethernet connector Slide latch ...
Страница 81: ...Connecting a Serial Printer 65 5 Attach the printer power cord and turn on the printer ...
Страница 91: ...Connecting a Parallel Printer 75 Figure 4 15 Connecting a Parallel Printer Cable Parallel printer connector ...
Страница 92: ...76 Chapter 4 Installing Optional Peripherals ...
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