HT7051 - HT7051N
EN - 19
8. During measurement, the instrument
gives a short acoustic signal every
second and the display shows a screen
similar to that reported here to the side,
which contains:
The RAMP function selected
The bar graph proportional to the
measured resistance value
The numerical indication of the
measured resistance
The segment relevant to the current ramp point, flashing
The actual test voltage (relevant to the current ramp point)
The symbol of the alarm bell (if the measured value is not within the set limits
and/or if the value of the test voltage is lower than the set nominal value)
The value of the remaining test time (relevant to the current ramp point)
The plug symbol (if the instrument is supplied from the mains)
The battery symbol steadily illuminated or flashing (if batteries are flat or are
being recharged)
The timer symbol
The two "flash" symbols to indicate a dangerous voltage
The message "
MEASURING...
"
While measuring, it is also possible to display the leakage current, the capacitance
the number N of the cycle the instrument is performing, which cyclically show when
pressing the arrow keys.
9. If you want to stop the test in advance before the set number N of cycles is reached,
press the
START/STOP
key.
10a. Once measurement is complete and
any capacitance has been discharged,
the instrument shows:
The value of the measured
insulation resistance
The value of the actually generated
voltage V1
The value of the time relevant to
parameter T1
If the measured resistance value is
between the (MIN - MAX) limits
previously set, the instrument shows
OK and gives a double acoustic
signal (see § 5.4.1, § 5.4.2, § 5.4.3)
OR