HT63
EN - 7
4.2. DESCRIPTION OF FUNCTION KEYS
4.2.1. A HOLD key
Pressing the A HOLD key freezes the value of the measured quantity on the display. After
pressing this key, the message
“
HOLD
”
appears on the display. Press the HOLD key again
to exit the function.
Press and hold the A HOLD key for a long time in order to activate/deactivate the
“
AutoHOLD
”
function. The message
“
A HOLD
”
appears on the display. With this function
enabled, the instrument freezes the value of the quantity on the display, automatically
updating it when a new stable value is detected; a buzzer sounds when this happens. This
function is useful in case of input signals with quick oscillations.
4.2.2. RANGE
key
Press the RANGE key to activate the manual mode and to disable the Autorange function.
The symbol
“
AUTO
”
disappears from the upper left part of the display. In manual mode,
press the RANGE key to change measuring range: the relevant decimal point will change
its position. The RANGE key is not active in positions
,
,
CAP, Hz%, Temp°C°F and
4-20mA%. In Autorange mode, the instrument selects the most appropriate ratio for
carrying out measurement. If a reading is higher than the maximum measurable value, the
indication
“
O.L
”
appears on the display. Press and hold the RANGE key for more than 1
second to exit the manual mode and restore the Autorange mode.
4.2.3. MAX MIN/PEAK key
Pressing the MAX MIN/PEAK key once activates the detection of maximum (MAX),
minimum (MIN) and average (AVG) value of the quantity being measured. The values are
constantly updated and are displayed cyclically every time the same key is pressed. The
MAX MIN/PEAK key is not active when the HOLD function is activated. The MAX
MIN/PEAK key is not active in positions
,
, CAP, Hz%, Temp°C°F and 4-20mA%.
Press and hold the MAX MIN/PEAK key for more than 1 second or turn the selector to exit
the function.
Press and hold the MAX MIN/PEAK key for more than two seconds to activate the
detection of Maximum and Minimum peak values o AC Voltage and Current with a
response time of 1ms. 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:
“
PMAX
”
for maximum peak value,
“
PMIN
”
for minimum peak value.
The Auto Power OFF function is automatically disabled.
Press and hold the MAX MIN/PEAK key for more than 2 seconds or turn the selector to
exit the function.
4.2.4. Hz%/REL
key
Press the Hz%/REL
key to select frequency measurement and duty cycle test in
positions V
Hz%, 10AHz%, mA
(AC),
A
and Hz% of the rotary selector. The
frequency range is different in the different positions.
Long pressing the Hz%/REL
key activates relative measurement. The instrument zeroes
the display and saves the displayed value as a reference value which subsequent
measurements will be referred to. The symbol
“
”
appears on the display. This function is
not active in positions
,
, Hz%, Temp°C°F and 4-20mA% . Press and hold the
Hz%/REL
key again to exit the function.
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