OEC 9800 Installation Procedure
12
Isolation Transformer Strapping
To match the nominal wall receptacle voltage to the input (primary) of the isolation transformer, you must select the correct tap
voltage for the wires on Primary 1 (BRN, WHT/BLU) and the wires on Primary 2 (WHT/BRN, BLU).
Figure 5
−−−−
Partial Schematic Diagram of the Isolation Transformer
1.
Connect the interconnect cable to the C-Arm and plug the power cord into the wall outlet.
2.
If the system is equipped with a 100-127 VAC power cord, measure the voltage from the BRN wire to WHT/BLU on T1
primary and record the results in the table on p. 5 of the
Report/Checklist
.
If the system is equipped with a 200-250 VAC power cord, measure the voltage from the BRN wire to WHT/BLU on the T1
primary and record the results in the table on p. 5 of the
Report/Checklist
.
Note
:
If the voltage measured in step one measures from 100 –127 VAC use Table 1 (next page). If the voltage measured in step
one measures between 200 –250 VAC use Table 2 (next page).
For example, if the voltage measured equals 112 VAC, use Table 1 (100 – 127 VAC). The correct voltage taps would be
