User Manual

HT211
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. Pressing again HOLD to disable this function and resume normal
operation. By pressing the key at least 1s the enable/disable of backlight feature can be
performed. This feature is active for any position of rotary selector and automatically
disabled after approx. 30s.
4.2.2. RANGE key
By pressing RANGE key, the manual mode is activated and the “AUTO” symbol
disappears from the display. Press RANGE cyclically to change the measuring range and
fix the decimal point on the display. To restore the autorange keep RANGE key pressed
for at least 1s or rotate the selector to another position. This feature is not active in Hz%,
/
,
°C°F and
positions.
4.2.3. MAX MIN key
Pressing the MAX MIN key once activates the detection of maximum and minimum values
of the quantity being tested. Both values are constantly updated and are displayed
cyclically every time the same key is pressed again. The display shows the symbol
associated with the selected function: “MAX” for maximum value and “MIN” for minimum
value. The flashing symbol “MAX MIN” shows the current value on the display. The MAX
MIN key is not active when the HOLD function is activated. The function is not active for
measurements Hz%,
/ and . Long pressing the MAX MIN key (or upon switching
on the instrument again) allows quitting the function.
4.2.4. MODE key
By pressing MODE key the selection of a double measured functions which are present at
display is performed. In particular this key is active in Hz%,
 / , °C°F positions
and to select between AC or DC voltage/current measurements.
4.2.5. Auto Power OFF
The instrument automatically turns off 15 minutes after last pressure of keys or last
selector rotation. To resume operation turn the selector on OFF and turn on the instrument
again.