Auto-ohm operating procedures – Vanguard Auto-Ohm User Manual
Page 9

Auto-Ohm Operating Procedures
5
4.0 OPERATING VOLTAGES
The Auto-Ohm operating voltages are
selectable between 90-130Vac, 50/60Hz or
210-240, 50/60Hz. Voltage selection is set
by jumpers on terminal block as shown on
Table 3, below.
Table 3. Voltage Selection
VOLTAGE SELECTION
TERMINAL BLOCK JUMPERS
90-130Vac
Brown to blue & yellow to green
210-240Vac
Blue to yellow
5.0 CABLE CONNECTION
(See Figure 2.)
The Auto-Ohm is supplied with 35-foot test
cables with quick disconnect test plug at one
end and heavy-duty alligator clamps at the
other end. Each test cable consists of a
current-carrying cable and a voltage-sensing
cable. The current-carrying cable is
terminated with a 200-ampere male plug.
The sensing cable is terminated with a 25-
ampere female plug. Insert current-cable
plugs and voltage-sensing cable plugs into
respective control-panel jacks (Figure 2).
Ensure that voltage plugs are inserted into
jacks adjacent to companion current jacks.
Figure 2. Typical Auto-Ohm Cable Hook-Up Diagram