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  Ledalite Architectural Products Inc.   Perfiform  

Perfiform - Page 11

   

Perfiform

Specification Data       PERFform Asymmetry™             2708T02            2T8

     

PHOTOMETRY

OPTICAL SETTING A:

UNIFORM WALL LUMINANCE

 

Efficiency                                 59.6%

Peak Candela Value             1626 @ 125º

Peak : Zenith ratio                 2.1:1

 

CANDELA DISTRIBUTION

Vert. Angle Horizontal Angle Zonal Lumens
0 45 90 135 180
0 14 14 15 14 14  
5 16 15 14 12 12 1
15 18 17 14 10 8 4
25 20 18 13 6 4 6
35 22 18 11 3 2 8
45 22 17 8 1 0 8
55 21 15 5 0 0 8
65 19 13 3 0 0 8
75 16 11 1 0 0 4
85 12 8 0 0 0 4
90 11 7 0 0 0  
95 238 229 30 27 23 152
105 820 809 139 82 76 425
115 1372 1196 270 142 131 599
125 1626 1230 404 202 192 617
135 1554 1155 522 257 248 548
145 1347 1083 618 313 299 448
155 1168 1034 697 375 353 334
165 1034 960 749 516 442 211
175 868 844 776 696 664 73
180 782 782 782 782 782  

COEFFICIENTS OF UTILIZATION (%)

Ceiling
Wall
RCR		 80 70 50 0
70 50 30 10 70 50 30 50 30 10 0
0 57 57 57 57 48 48 48 33 33 33 0
1 51 49 47 45 44 42 40 29 28 27 0
2 47 43 39 36 40 37 34 25 23 22 0
3 42 37 33 30 36 32 29 22 20 18 0
4 39 33 29 25 33 28 25 19 17 15 0
5 35 29 25 21 30 25 21 17 15 13 0
6 32 26 21 18 27 22 18 15 13 11 0
7 30 23 19 16 25 20 16 14 11 10 0
8 27 21 16 13 23 18 14 12 10 8 0
9 25 19 15 12 22 16 13 11 9 7 0
10 23 17 13 10 20 15 11 10 8 6 0

Based on a floor reflectance of 0.2

 

OPTICAL SETTING B:

MODULATED WALL LUMINANCE

Efficiency                                 67.9%

Peak Candela Value             1601 @ 125º

Peak : Zenith ratio                  1.6:1

CANDELA DISTRIBUTION

Vert. Angle Horizontal Angle Zonal Lumens
0 45 90 135 180
0 14 13 14 12 13  
5 14 14 14 12 12 1
15 18 15 13 9 8 4
25 20 17 12 6 4 5
35 20 17 10 3 2 8
45 20 15 7 1 0 8
55 19 15 5 0 0 8
65 18 13 2 0 0 6
75 15 10 1 0 0 4
85 12 7 0 0 0 4
90 10 6 0 0 0  
95 225 204 39 24 18 147
105 811 788 187 87 72 431
115 1378 1169 361 198 153 635
125 1601 1235 535 318 277 683
135 1557 1211 688 419 399 641
145 1410 1199 818 514 493 550
155 1303 1209 919 604 580 429
165 1238 1181 988 763 686 278
175 1121 1089 1026 957 925 98
180 1032 1032 1032 1032 1032  

COEFFICIENTS OF UTILIZATION (%)

Ceiling
Wall
RCR		 80 70 50 0
70 50 30 10 70 50 30 50 30 10 0
0 64 64 64 64 55 55 55 38 38 38 0
1 59 56 53 51 50 48 46 33 32 30 0
2 53 49 45 42 45 42 39 29 27 25 0
3 48 43 38 34 41 36 33 25 23 21 0
4 44 37 33 29 38 32 28 22 20 18 0
5 40 33 28 24 34 28 24 20 17 15 0
6 37 29 24 21 31 25 21 17 15 13 0
7 34 26 21 18 29 23 18 16 13 11 0
8 31 24 19 15 27 20 16 14 11 9 0
9 29 21 17 13 25 18 14 13 10 8 0
10 27 19 15 12 23 17 13 11 9 7 0

Based on a floor reflectance of 0.2

SPECIFICATIONS

Housing:

6063 T5 extruded aluminum.

Optical system:

Perforated metal, 32" dia. perforation to make up 32% void, backed with a U.V. stabilized and fire rated diffusing membrane to produce not more than a 2:1 luminance uniformity across perforations. Reflector material is highly specular aluminum. Field adjustable optical cavity to allow for two light distributions.

Row ends:

Die formed aluminum endplates, 1/4" min. thickness.

Joints & Intersections:

All joints shall be accomplished using QuickLock joining systems. Optional intersections in "L", "T", or "X" configurations shall be die formed aluminum, 1/4" min. thickness, with an adjustment range of 85 - 275 degrees, c/w wiring cavity.

Mounting:

Brackets attach to existing structure anywhere behind fixture. Adjustable mounting brackets provide for up to 1/8" wall variance and allow for vertical fixture leveling.

Electrical:

Power feed can be located anywhere behind fixture through standard horizontally mounted switch box. All luminaire sections shall be factory pre-wired to section ends. Optional quick connect plugs available.

Ballast:

Electronic: rapid start, instant start or dimming.

Approvals:

Certified to UL and CSA standards.

Finish:

Thermosetting polyester, electrostatically applied meeting AAMA 603.8. Available in Ledalite standard white and a full architectural spectrum of colors. Medium gloss finish as standard.

© 1996 Ledalite Architectural Products Inc. 9087A - 198th Street, Langley, B.C., Canada, V1M 3B1

Phone: 604-888-6811 Toll Free Fax: 1-800-665-LEDA (5332) Email: sales@ledalite.com
WWW: http://www.ledalite.com/

Note: Specifications subject to change without n otice.



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