HT7
EN - 6
4.4. DC VOLTAGE MEASUREMENT
CAUTION
The maximum input for DC voltage is 690V. Do not measure higher
voltages to avoid risks of electrical shocks or serious damages to the
instrument.
symbol is lighted up whenever the voltage between the probes
exceeds 50V, even if the batteries are low or have been removed.
Fig. 2: DC voltage measurement
1. Perform the preliminary Autotest (see § 4.3).
2. Connect the L1 and L2 probes to the object
under test (see Fig. 2)
3. The instrument turns automatically on and the
measured DC voltage value is displayed both
in numerical and bargraph modes. DC symbol
is displayed. Always keep the instrument in
vertical position for an optimal display reading.
4. The symbol "-", if displayed, indicates that the
measured voltage is negative.
5. The instrument turns automatically off as soon
as the probes are disconnected from the object
under test. If the measured voltage is lower
than 4.5V DC the instrument turns
automatically off.
6. Press the key to switch on the white LED
illuminator to perform measurements in dark
environments.
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