![background image](http://html1.mh-extra.com/html/ht/ht77n/ht77n_user-manual_2178101024.webp)
HT77N
EN - 7
4.2.2. Wide/50-60Hz/Compare key
Wide/50-60Hz
Shortly pressing the
Wide/50-60Hz/Compare
key allows enabling the low-pass filter,
which has a cutting frequency of approx. 100Hz. W hen the function is enabled, the full
scale is forced in manual mode and the display shows “
50-60Hz
”. Shortly pressing the
Wide/50-60Hz/Compare
key again, with enabled function, allows disabling the low-pass
filter and going back to the normal measuring mode.
Compare
Long pressing the
Wide/50-60Hz/Compare
key (> 1 second) allows enabling the
Compare function. The display shows “
Compare
” and the set current limit value flashes.
By pressing the
Range
key it is possible to set the limit comparison current among the
following values: 0.25mA, 0.50mA and 3.5mA. To confirm the set value, press the
Wide/50-60Hz/Compare
key again. With active Compare function, if the measured current
exceeds the set limit value, the internal buzzer sounds continuously and the current value
shown on the display flashes. Long pressing the
Wide/50-60Hz/Compare
” (> 1 second)
key again, with enabled function, allows disabling the Compare function and going back to
the normal measuring mode.
4.2.3. Range key
Shortly pressing the
Range
key allows setting the measuring full scale in manual mode. In
this condition, the display does not show “
Autorange
”. Pressing the
Range
key again
allows setting the desired full scale. To restore the Autorange mode, press the
Range
key
for a time > 2 seconds.
4.2.4. Auto Backlight sensor
The clamp is equipped with a brightness sensor which, in case of low light, automatically
activates the display’s backlight.
Summary of Contents for HT77N
Page 1: ...Copyright HT ITALIA 2012 Release 1 02 11 12 2012 ...
Page 3: ...Copyright HT ITALIA 2012 Versione IT 1 02 11 12 2012 ITALIANO Manuale d uso ...
Page 17: ...Copyright HT ITALIA 2012 Release EN 1 02 11 12 2012 ENGLISH User manual ...
Page 31: ...Copyright HT ITALIA 2012 Versión ES 1 02 11 12 2012 ESPAÑOL Manual de instrucciones ...
Page 45: ...Copyright HT ITALIA 2012 Ausführung DE 1 02 11 12 2012 DEUTSCH Bedienungsanleitung ...
Page 59: ......