HT instruments HT4016 - Manual (Page 10)

HT4014-HT4016
EN - 9
4.2. FUNCTION KEY DESCRIPTION
4.2.1. R-H / key: range selection / backlight function (HT4016 only)
For R-H function:
1. Press R-H /
key less than 1 second, Manual range is activated.
2. Press R-H / key more than 1 second, Manual range is disabled and Backlight is ON.
3. Press R-H / key for more than 1 second, Backlight is OFF and Manual range is
activated.
For function:
1. Press R-H / key more than 1 second, Backlight is ON;
2. Press R-H / key more than 1 second, Backlight is OFF.
Pressing the R-H /
key you can switch between the Automatic or Manual Range
selection. In particular the "MANU" symbol point out the Manual range selection while the
"AUTO" symbol point out the Automatic Range selection.
The Manual Range selection will be disable if:
• The R-H /
key is pressed more than 1 second.
• The position of the rotary switch is changed.
4.2.2. D-H key: HOLD function
Press of D-H key active HOLD function which allows to hold the displayed digital values.
When this function is enabled the display shows the " H "symbol.
The HOLD function will be disabled if:
• The D-H key is pressed again.
• The position of the rotary switch is changed.
4.2.3. ZERO key: zeroing display function (HT4016 only)
The read value can be zeroing (0) when you press ZERO key. The symbol “ZERO” is
showed at display when this function is enabled. Press the key a second time zeroing
value is showed and “ZERO” symbol start to blinking.
Press ZERO key more than 1 second to disable the function.
4.2.4.
key: enable/disable backlight (HT4014 only)
Press this key you enable the display backlight to easy readings in dark environments.
Press more than 1 second to disable backlight, which, however, it automatically OFF after
60 seconds.
4.2.5. MAX/MIN
key: store Maximum and Minimum values
With this function its possible to store MAX and MIN value of parameters selected with
rotary switch. Operate in following way:
• Press the key to activate function. “MAX” symbol appear at display and instrument
measures and show the Maximum value of parameter which automatically update itself
when a bigger value occurs.
• Press the key again “MIN” symbol appear to display and instrument measures and
show the Minimum value of parameter which automatically update itself when a lower
value occurs.
• Press again the key a blinking message “MAX MIN” appear at display. In this mode the
instrument measures and store the minimum and the maximum value of selected
parameter. Another press of MAX/MIN key showed the recording values.
• Press more than 1 second to exit from MAX/MIN function.