Hameg HM1008 Manual Download Page 32

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Subject to change without notice

the cursors if the following conditions are met: The cursors
must be activated (Press AUTO/CURSOR-MEASURE pushbutton

Cursors

Cursors On), press the CH1/2–CURSOR–MA/

REF–ZOOM-pushbutton

select ”Cursors“ or ”Cur. Track“.

The pushbutton will light up blue.

STOP

Note:

The function Cur. Track (cursor tracking) is only
available if 2 cursors are on display. The cursors
will then be moved simultaneously (tracking) wit-
hout changing their respective positions.

CH1/2–CURSOR–MA/REF–ZOOM-pushbutton

This pushbutton calls a menu which allows to select the func-
tions of the controls POSITION 1 and 2. With mathematics
functions this will also affect in some way the SCALE function
which is changed by the VOLTS/DIV controls.

The pushbutton will signal the function activated corresponding
to the front panel labelling:

dark:

Y position CH1 and CH2.

blue:

Y position of cursors.

green:

Y position of:

– Mathematics signal(s)

– Reference signal(s)

– ZOOM or time base B display of signal(s)

VOLTS/DIV–SCALE–VAR knob

This knob is a double function CH1 control.

16.1 Selection of vertical sensitivity

Provided VAR on pushbutton CH1

is not illuminated the sen-

sitivity will be calibrated. Turning the control CCW will decrease,
turning it CW will increase the sensitivity. 1 mV/cm to 20 V/cm
can be selected in a 1-2-5 sequence. The readout will display
the calibrated sensitivity (e.g. ”CH1: 5mV..“). Depending on the
sensitivity selection the signal will be shown with smaller or
greater amplitude.

STOP

Please note:

This sensitivity selection is always active, e.g. also,
if CH2 only was chosen. In that case CH1 may be
used as trigger source.

16.2 Variable control

Select this function with the CH1 pushbutton

Variable On.

VAR on the CH1 pushbutton will light up. The readout will add a

C o n t r o l s a n d R e a d o u t

”

“ to the sensitivity indication (”CH1

5mV..“) in order to show

that the sensitivity is now uncalibrated. The results of cursor
measurements will be ﬂ agged accordingly.

In this mode the sensitivity can be changed with the VOLTS/
DIV–SCALE–VAR control knob from 1 mV/cm to

20 V/cm.

16.3

SCALE (DSO mode)

The display height of a mathematic signal resp. a refe-
rence signal can be changed after the function „Math./Ref.“
is selected in the „Pos./Scale“ menu. The latter is called
by pressing the CH1/2–CURSOR–MA/REF–ZOOM-pushbutton

VOLTS/DIV–SCALE–VAR knob

This double function control belongs to CH2.

17.1 Selection of vertical sensitivity

The sensitivity will be calibrated provided VAR on the CH2
pushbutton

is not illuminated. Turning the control CCW

will decrease, turning it CW will increase the sensitivity. The
sensitivities can be selected from 1 mV/cm to 20 V/cm in a
1-2-5 sequence. The readout will show the sensitivity (e.g.
”CH2:5mV..“). Depending on the sensitivity the signal will be
displayed with smaller or greater amplitude.

STOP

Please

note:

The sensitivity control is always active, i.e. also if
CH2 is not selected. CH2 may then still be used e.g.
as a trigger source.

17.2 Variable control

The variable control is activated by pressing the CH2 push-
button

Variable On. VAR on the pushbutton will light

up. The readout will add the ”

“ preceding the sensitivity

(e.g. ”CH2

5mV..“) in order to indicate that the sensitivity is

uncalibrated. The results of cursor measurements will be
labelled accordingly.