What should the CT meter scale be set to when upgrading an RTHB unit to Adaptiview controls?
The CT Meter Scale table can be found in the Adaptiview Programming guide for the RTHB upgrade (BAS-SVP027*). It is also shown below.
Appendix E. CT Meter Scale Table
The CT Meter Scale is an especially critical factor and must be determined correctly. Use the following table to determine CT Meter scale for your application. Using the part number on the CT, which provides the CT ratio, the RLA of the motor, and the number of turns through the CT, you can read the resulting CT meter scale from this table.
Table 25. CT Meter Scale
Actual Motor RLA (A) CT Extension X13580253 or X13580269 CT Ratio (A:A) CT Rating (A) Inside Diameter B (inches) Outside Diameter B (inches) Primary Turns CT Meter Scale 5.6 to 8.3 09 50:0.1 50 2.0 3.35 6 8.3 6.7 to 10.0 09 50:0.1 50 2.0 3.35 5 10.0 8.4 to 12.5 09 50:0.1 50 2.0 3.35 4 12.5 11.2 to 16.6 09 50:0.1 50 2.0 3.35 3 16.6 16.7 to 25.0 09 50:0.1 50 2.0 3.35 2 25 25.0 to 37.5 10 75:0.1 75 2.0 3.35 2 37.5 33.4 to 50 09 50:0.1 50 2.0 3.35 1 50 50 to 75 10 75:0.1 75 2.0 3.35 1 75 67 to 100 01 100:0.1 100 2.0 3.35 1 100 100 to 150 02 150:0.1 150 2.0 3.35 1 150 134 to 200 03 200:0.1 200 2.0 3.35 1 200 184 to 275 04 275:0.1 275 2.0 3.35 1 275 267 to 400 05 400:0.1 400 2.5 3.95 1 400 334 to 500 06 500:0.1 500 2.5 3.95 1 500 467 to 700 07 700:0.1 700 2.5 3.95 1 700 667 to 1000 08 1000:0.1 1000 2.5 3.95 1 1000 934 to 1400 11 1400:0.1 1400 3.5 5.25 1 1400 1200 to 1800 12 1800:0.1 1800 4.0 6.50 1 1800
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