TX7410 Operation Manual
14
4) Power on/off
Power on/off switch. In the “I” position all operating voltages are applied to the instrument.
In the “O” position NO operating voltages are applied to the instrument.
5) Softkeys
They have functions of three levels:
a) Functions by directly pressing softkeys
PARA A: to select primary parameters
PARA B: to select secondary parameters
FREQ: to set frequency
LEVEL: to select level
SPEED: to select measurement speed
RANGE: to set range HOLD/AUTO
SHIFT: to shift to second function
TRIGGER: to trigger single measurement
▲
▼
is used to select select PAR, PAR B, FREQ, LEVEL, SPEED or RANGE
，
the object
is determined by the formal press. If press
PARA A
firstly, then
▲
▼
corresponds
with parameter selection
；
press
FREQ
key
，
then
▲
▼
corresponds with frequency
selection.
LOCAL: to enter local operation at remote control mode (RMT status)
b) Functions by pressing SHIFT softkey
OPEN: to perform open correction
SHORT: to perform short correction
DISP: to select parameter display mode
COMP: to turn on or off comparator
BIAS
Bias function turn on or off
SETUP: to enter measurement setup menu
LIMIT: to enter list sweep setup menu
FILE: to enter file management function menu
SYSTEM: to enter system setup menu
c) Only the following menu keys are valid after entering menu:
【
ESC
】
【
ENTER
】
【
▲
】
: to select option or add 1
【▼】
: to select option or minus 1
【
▲
】
: to select option
【
▼ 】
: to select option
【
m
】
、
【μ】
、
【
n
】
、
【
M
】
、
【
p
】
、
【
k
】
in limit set menu
，
when modifying limit data, press
unit rate directly to replace
ENT
key.
Unit rate
：
【
p
】
means
×
10
-12
，【
n
】
means
×
10
-9
，
【μ】
means
×
10
-6
，
【
m
】
means
×
10
-3
，
【
k
】
means
×
10
3
，
【
M
】
means
×
10
6
.
