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SECTION 3
INSTALLATION
24
3.4.1 CONFIGURE TRANSFORMER RATIO
NOTE:
Most users will not need to concern themselves with the unit configuration as it is set at the
factory if the UPC is packaged with a power source.
Set the TRANSFORMER RATIO of the UPC to be the same as the turns ratio of the Output XFMR in the
Power Source. Refer to the Power Source Manual to determine the TRANSFORMER RATIO of the
Power Source. The ratio is set by the TRANSFORMER RATIO SWITCH on the UPC METERING PCB.
See figure 3.4.1. The Dip-switches S2-8 and S1-1 thru S1-8 are binary weighted:
RATIO
DIP-SWITCH SETTING
S1-8 S1-7 S1-6 S1-5 S1-4 S1-3 S1-2 S1-1 S2-8
WEIGHTING
VALUE
2.56
1.28
.64
.32
.16
.08
.04
.02
.01
NO
XFMR
*
OFF OFF OFF OFF OFF OFF OFF OFF OFF
0.50
OFF OFF OFF ON ON OFF OFF ON OFF
1.00
OFF OFF ON ON OFF OFF ON OFF OFF
1.50
OFF ON OFF OFF ON OFF ON ON OFF
2.00
OFF ON ON OFF OFF ON OFF OFF OFF
2.50
OFF ON ON ON ON ON OFF ON OFF
5.11
ON ON ON ON ON ON ON ON ON
* Set all bits to OFF to indicate NO TRANSFORMER installed.
NOTE:
TRANSFORMER RATIOs are implied as a ratio to one, e.g., a setting of 2.5 is implied as a ratio
of 2.5:1.
Summary of Contents for UPC-12
Page 2: ......
Page 12: ...SECTION 1 GENERAL viii THIS PAGE INTENTIONALLY BLANK ...
Page 17: ...SECTION 1 GENERAL 5 PACIFIC Figure 1 3a SCU UPC 32 Figure 1 3b UPC 32 Figure 1 3c UPC 12 ...
Page 46: ...SECTION 4 OPERATION 34 PA CIFIC FIGURE 4 1 POWER SOURCE FRONT PANEL ...
Page 77: ...SECTION 4 OPERATION 65 90 0 100 0 85 95 100 90 FIGURE 4 6 2 1 EDITED WAVEFORM ...
Page 139: ...NOTES 127 NOTES ...