HT7
EN - 5
4. NOMENCLATURE
4.1. INSTRUMENT
DESCRIPTION
CAPTION:
1.
L1
dynamic probe
2.
L2
fixed probe
3. White LED pointer
4. LCD display
5.
Continuity test
LED
6.
Voltage detection
warning
LED
7. Low impedance test LED
8. Low impedance switch (L2)
9.
White LED pointer
activation key
10. Battery cover
11. Low impedance switch (L1)
12.
4mm metal sleeves with
internal thread
13. Probe tip protection covers
Fig. 1: Instrument description
4.2. DESCRIPTION OF SYMBOLS AT DISPLAY
The following symbols can be displayed:
Symbol Description
DC
DC Voltage measurement
AC
AC Voltage measurement
Negative polarity on DC voltage measurement
This symbol is lighted up whenever the voltage between the probes
exceeds 50VAC/DC, even if the batteries are low or have been removed
Continuity test
Clockwise phase sequence
Counterclockwise phase sequence
Detection voltage necessary to perform measurements
Low battery indication
4.3. INITIAL
AUTOTEST
Before start any measurements perform the following checks:
Use the instrument on a known voltage source.
The "
" symbol is lighted up whenever the voltage between the probes exceeds
50VAC/DC, even if the batteries are low or have been removed.
Short
the
L1
and
L2
probes. The indicator lights, the buzzer sounds and the LEDs for
the continuity test light up. The LEDs for the low impedance test and the single-phase
voltage do not light up.
Summary of Contents for 1009740
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