INFICON MDC-260 Thin Film Deposition Controller - Manual (Page 9)

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SAFETY PRECAUTION AND PREPARATION FOR USE
Input Power Requirements
The MDC-260 Thin Film Controller can be set to operate one of the following
line voltages: 100, 120, 200, or 240 VAC at line frequency of 50 or 60 Hz.
Maximum power consumption is 25 watts. See Section 8.3.3 for instruction on
selecting line voltage.
Power Entry Module
The AC (alternating current) power entry module, located in the rear panel of the
MDC-260, provides connection to the power source and a protective ground. It
also holds the fuses and the voltage selection wheel.
Power Cord
WARNING: To avoid electrical shock, always connect the power cord to an
AC outlet which has a proper protective ground.
The MDC-260 comes with a detachable, three-wire power cord for connection to
a power source with protective ground.
The MDC-260 chassis is connected to the power ground to protect against
electrical shock. Always connect to an AC outlet which has a properly connected
protective ground. If necessary, or when in doubt, consult a certified electrician.
Grounding
A grounding lug is located on the rear panel, near the power entry module. Use
heavy ground wire, wire braid, or copper strap of #12 AWG or larger to connect
this grounding lug directly to a facility protective earth ground to provide
additional protection against electrical shock.
Line Fuses
There are two 5 x 20 mm fuses mounted inside the power entry module. They are
accessible via the snap-in cover. Replace with the correct fuse rating: IEC T Type
(Slow), 4/10 A, 250 VAC. Refer to Section 8.3.3 for instruction to replace the
fuse.
Power Switch
WARNING: Do NOT use the power switch as a disconnecting device;
disconnect the power cord from the power entry module to fully remove
hazardous voltage from inside the MDC-260.
The power switch is located on the front lower left of the MDC-260. Pressing the
switch will toggle the controller on or off. The MDC-260 is off when the LCD
and all of the LEDs behind the operating keys are off. However, turning the
power switch off does not fully remove the AC power from inside the unit.
Always disconnect the power cord from the power entry module to fully remove
AC power from inside the unit.