1.4.1

Do the operators have an adequate view of the visual display from their workplace (seated and standing)?

Viewing distance to the visual display should be between 450 mm and 800 mm.

It should not be necessary to turn head more than 35 degrees left or right to see important displays (95 degrees for less important / not frequently used displays).

Check: Process control system, safety system, utility system and supervisory system, and possible obstructions from personnel during emergencies.

Comments/Recommendations

NUREG, 0700, rev.2, 11.1.2-8.
ISO 11064-4 5.1.2 User Requirements.
DC: RSOK S-002, REV 4