HT instruments HT326 - Manual (Page 7)

HT326
EN - 6
4.2. DESCRIPTION OF FUNCTION KEYS
4.2.1. HOLD
key
By pressing HOLD key the measured value is frozen on the display where the symbol
"HOLD" appears. Press again HOLD to disable this function and resume normal operation.
4.2.2. R (RANGE) key
By pressing R key, the manual mode is activated and the “AUTO” symbol disappears from
the display. Press R cyclically to change the measuring range and fix the decimal point on
the display.
To exit this function keep R key pressed for at least 1 second or rotate the selector to
another position.
4.2.3. REL
key
By pressing REL the relative measure is activated. The meter sets the display to zero and
saves the actual value as reference. The “REL” symbol is shown at display. This function
is not active on Hz, Duty Cycle, Continuity Test and Diode Test measurements. Pressing
again the key to exit from this function.
4.2.4. SEL
key
By pressing SEL key the selection of a double measured function on the display is
possible. In particular this key is active only in Hz and Duty position and to select between
AC and DC current measure.
4.2.5. Backlight key (
)
By pressing key it’s possible to activate the backlight function on the display. The
function automatically disabled itself after some seconds and is available on each position
of the rotary selector
4.2.6. Auto Power OFF
The instrument automatically turns off 15 minutes after the last pressure of keys or the last
selector rotation. To resume operation pressing HOLD key or turn the selector on OFF and
turn on the instrument again.