GW Instek GOS-6100 Series - Manual (Page 18)

GOS-6112 OSCILLOSCOPE
USER MANUAL
 29 
(38)EXT—This BNC socket is the external trigger signal input.
In dual X-Y mode, signals at this input are used for the X deflection.
Pressing the TRIG. SOURCE (29) pushbutton until the information of
“EXT, slope, coupling” is shown up in the readout and the TRIG.
SOURCE “EXT” LED is lighted, switches the input on.
The outer (ground) connection is galvanically connected to the
instrument ground and consequently to the safety earth contact of the
line/mains plug.
The maximum input voltages of the instrument input terminals and probe
input terminals are listed in the section of 3-6.Withstanding voltage of
Input terminals”. Do not apply voltage higher than the limit.
GOS-6112 OSCILLOSCOPE
USER MANUAL
 30 
4-2.Rear Panel
The rear panel provides input power and additional signal connections.
30Vpk MAX.
LINE VOLTAGE
POWER MAX. 70 WATTS, 90VA
IEC1010 250V CAT
ENSURE THE POWER IS REMOVED FROM
THE INSTRUMENT BEFORE REPLACING THE FUSE
39
120V
230V
110V
SELECTION
25mV/DIV
40
250V T 1A
FUSE
250V T 0.4A
108~132V
207~250V
90~110V
RANGE (50/60Hz)
41 42
INTO 50
OUTPUT
CAT W
INPUT
120
230
TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE GROUNDING
QUALIFIED PERSONNEL. NO OPERATOR SERVICEABLE COMPONENTS INSIDE. DO NOT REMOVE
FOR CONTINUED FIRE PROTECTION. REPLACE ONLY WITH SPECIFIED CONDUCTOR MUST BE CONNECTED TO GROUND.
WARNING
COVERS. REFER SERVICING TO
TYPE AND RATED FUSE.
100 AC
TRIGGER SIGNAL Z-AXIS
(39)Line voltage selector and input fuse holder—Select power source
and contain the primary power fuse
The fuse rating is shown in the section of 3-2 Checking the line
voltage.
(40)AC power input connector
Connect the AC power cord to the power supply of instrument, the
power cord protective-ground connection is connected to the exposed
metal part of the instrument. The power cord must be connected to a
proper grounded source for electrical-shock protection.
(41)TRIGGER SIGNAL Output—BNC socket
The signal selected by the TRIG. SOURCE (29) is available. This
output may be used to connect to a frequency counter or other
instrument.