Maple Systems OIT4185A - Manual (Page 6)

1. Safety Warnings
WARNING Hazardous location environment. This unit is suitable
for use in Class I, Division 2 groups A, B, C and D or Non-Hazardous
locations only.
WARNING All input and output (I/O) wiring must be in accordance
with Class I, Division 2 wiring methods and in accordance with the
authority having jurisdiction.
WARNING Explosion hazard. Do not disconnect equipment unless
power has been switched off or the area is known to be non-hazardous.
WARNING Explosion hazard. Do not connect more than one main
power supply to any one fuse or circuit breaker.
WARNING Explosion hazard. Substitution of components may
impair suitability for Class I, Division 2.
1.1. Hazardous Locations
Install the MicroOIT terminal using publication NFPA 70E, Electrical Safety
Requirements for Employee Workplaces as a guide. Be certain to follow all
directions for installing and connecting DC power to the MicroOIT.
When used in a hazardous environment, the ultimate enclosure must be in
accordance with Class I, Division 2 wiring methods as described in the National
Electrical Code (ANSI/NFPA 70).
All peripheral equipment must be suitable for the location in which it is used.
Use only a Class 2 power source as described in the National Electrical Code
(ANSI/NFPA 70).
WARNING Use only with Class 2 power source limited to 30 VDC
open circuit and 8A short circuit.
1010-0104, REV 04
6 OIT3185A/4185A
5.3. Creating a Computer-Generated Slide-In Legend
The dimensions in Figure 10 can be used to create a computer generated legend.
When creating:
• Dimensions are in inches [mm].
• Recommended key size is 0.500 inches [12.7 mm] square.
NOTE: Pressing the center of the switch is critical for switch actuation.
• Background colors should extend to the upper and lower edges of the legend and
to the 2 vertical lines marked “BACKGROUND.”
• All text and graphics should be within the dashed rectangle.
When printing:
• Use only non-glossy stock which is 0.004 - 0.008 inches (0.1 - 0.2 mm) thick.
• Check printing accuracy with the printed check dimension.
INSTALLATION MANUAL 19
1010-0104, REV 04
Figure 10 Computer-Generated Legend Dimensions