Appendix: Photocell Taping
158 Chadwick-Helmuth Company, Inc.
Simplified Table
Use the following table to look up the minimum width of retro-reflective
tape necessary:
Tape
Distance
From
Center
a
a. This means the distance of the tape from the center of rotation.
Tape
Part
No.
b
b. Numbers refer to the Chadwick-Helmuth part number. No. 12803 is
1 in. wide, No. 10444 is 0.5 in. wide, and No. 3300 is 0.2 in wide.
No. of Tape Strips To Use at the Following
RPM Ranges:
0 to
600
600 to
1500
1500
to
2300
2300
to
3100
3100
to
3800
10 to
20 in.
12803 11223
10444 12345
33003581013
0 to 10 in. 12803 11112
10444 11223
330013558
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