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Figure 4: 7440, DUT and 1931 Series connect to 7630 with Opt.752 & Opt.753
The PLC Remote setting of 7630 must set to OFF and safety Tester must set to ON.
DUT Input Voltage Connections for OPT.752
The Power Source to the device under test (DUT) inputs must be an
unbalanced single-phase supply. This means that there is only one
HOT or LINE conductor and the other conductor of the power source
must be at a low voltage reference potential. The low voltage
reference does not need to be physically earth grounded but should not
carry any large voltage potential. The 220 - 240V US style line power
IS NOT
suitable to
connect to the DUT inputs. This style of power distribution is a balanced type with two HOT
or LINE conductors. Be sure that the hot lead of the power source is connected to pin 1, L
(line) terminal of the DUT input connector and the Reference or low voltage lead is connected
to pin 2, N (neutral) terminal of the DUT input connector.
DO NOT
connect a line
conductor to the N or Neutral terminal of the DUT inputs. This condition can be very
dangerous to the LINECHEK user.
If voltage is applied to pin 2, N (neutral) terminal of the DUT input and you attempt to execute
a Run Test or Touch Current test, a warning message will appear in the displayed messages
portion of the screen. If you see this message, you will need to correct the voltage problem
before the instrument will allow you to execute Run Tests or Touch Current tests.
WARNING