4-3
Set the Input Voltage
Product Support: www.instron.com
Use a 3-wire, grounded main power cable for the load frame. The load frame operates
from a single phase, two-wire grounded power source that applies 240 volts rms or
less between the supply conductors or between the ungrounded supply conductor
and earth ground.
The power cord set and plug is based on the country to which the frame is shipped and is
compatible with the electrical requirements for that country.
Set the Voltage
The load frame voltage is factory set, according to the voltage that was specified at the time
of purchase. However, you can alter the power input connector to accept line voltages from
100 Vac to 240 Vac (47 to 63 Hz). Refer to “Power Requirements” on page 2-8 for the
available voltages for each model type.
Refer to “Determine the Voltage Setting” on page 4-4 to determine the current voltage
setting on your machine. If the voltage indicated does not match your power source, follow
the instructions in section “Change the Voltage Setting” on page 4-4 to change the
frame’s voltage.
Hazard - Do not remove covers to any component of your system, unless it is
specified in a procedure.
There are dangerous voltages and rotating machinery inside the machine that may cause
bodily injury or damage to equipment.
The connector on the power cable must be compatible with the power source. If
the power cable supplied with your system does not fit your power source outlet,
add a male plug to the cable that is compatible with the voltage. Observe the CEE
wire color code as follows:
• Brown - high (live)
• Light blue - low (neutral)
• Green and yellow - earth (ground)
Some line voltage selector units may read 230 V (instead of 220 V) on the external face and
on the internal card. These units are interchangeable and can be used as the 220 V
selection.
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