Idiomas disponibles
Idiomas disponibles
2. PARTS AND CONTROLS
2-1 HOW TO CONNECT TEST LEADS.
On MΩ Range , and 400Ω/BZ, ACV, DCV, plug the red test
lead into the "VΩ" terminal and the black lead into the "COM"
terminal.
2-2 BATTERY CHECK-UP & REPLACEMENT
a) As battery power is not sufficient, LCD will display
Replacement of 6 pcs new batteries, type 1.5V size "AA" is
required.
b) Place back the battery cover and the four screws.
2-3 TEST LEADS CHECK
Set the range select switch to the 400Ω range. With the tip and
crocodile clip of the test leads being connected, the display
should read 00.0Ω. When the leads are not connected the
display will read infinity indicated by "1". This will ensure that
test leads are under working condition.
2-4 ROTARY SWITCH POSITIONS
Turn the tester on by selecting any measurement
Left < 1000 V, 500 V, 250 V, 125 V (4000M Ω) OFF 400Ω/BZ,
1000 V DC, 750 V AC > Right
2-5 BUTTONS AND DISPLAY INDICATORS
a) Button
• HOLD/MAX.MIN: by-pressing the "HOLD" button the 1st
time, the current values will be hold in the primary display,
but it will release in the 2nd pressing ; by pressing 2
seconds, it will enter directly into the "MAX"status, and
one another push on the button it will switch to the "MIN",
by pressing once more, it will restart the cycle,but exit by
pressing 2 seconds again.
• LOCK: in the insulation resistance testing function ,press
the "LOCK" button, and then push down the " TEST" key,
it will generate the high-voltage and enter the insulation
resistance testing status. Press the "TEST" button once
more, it will shut off the high-voltage and exit from the
insulation resistance testing status.
• TEST: in the insulation resistance testing function, by
pressing and holding the "TEST" button, the tester will
generate high-voltage, and enter into the insulation
resistance testing; by releasing the «TEST» button, it
will shut off the high-voltage and exit from the insulation
resistance testing.
• ZERO/LIGHT: by pressing the "ZERO/LIGHT" button the 1st
time, the current values in the primary display will be set to
zero,(mainly used for 400Ω, the low resistance testing); by
pressing a 2nd time it will return. By pressing 2 seconds,
it will enter directly into the "LIGHT" status, and the LCD
backlight lights up. After 15 seconds, the backlight shuts off
automatically, or by pressing 2 seconds within the period
of 15 s.
10
b) Display indications
• Primary Display: indicates the current function testing
values.
• Secondary Display: indicates the output DC voltage while
you test the insulation resistance, and the battery voltage
during the V AC test.
• Analogic Bar: indicates the current function testing value in
conjunction with the primary display.
• "
": While testing the insulation resistance, the symbol
"
" flashes frequently if the voltage is over 30 V.
• "•)))": While testing the insulation resistance, the symbol
" •)))" flashes frequently and the buzzer warns continuously
if the output voltage is over 30V the symbol " •)))"
is indicated while LOΩ ≤ 35Ω and the buzzer warns
continuously.
• LOCK: Push down the "LOCK" button while you test the
insulation resistance and the symbol
• LOBAT: The display shows "LOBAT" when the voltage drops
below 7.5 V
• MAX/MIN: Stands for the maximum or the minimum.
• ZERO: Digital zero adjustment.
• HOLD: Digital holding function for the primary display.
• AC, DC: Iindicator for the voltage type.
• V, MΩ, Ω: Unit of measurement.
3. INSULATION RESISTANCE MEASUREMENTS
a) Turn the rotary switch from the "OFF" position to the left
(4000 MΩ/ 1 000 V---4 000/ MΩ500 V---4000 MΩ/250 V---
1000 MΩ/125 V), and chose one of the voltage-range (there
are 4 ranges namely, 4 MΩ - 40 MΩ - 400 MΩ - 4000 MΩ, can
be switched automatically for every voltage ranges).
b) Connect the two test leads to the installation to be tested;
c) Push down and hold the "TEST" button and/or press the
" LOCK" key first and then the "TEST" button, if the tested
installation is energized and its voltage (AC/DC) is over 30
V, it will refuse to work and no high-voltage testing occurs,
simultaneously, it shows "> 30 V" on the LCD, the symbol
flashes, and the buzzer warns frequently. If the tested
installation is de-energized or its voltage is less than 30 V, it
will enter into the formal testing process and generates the
high-voltage, on the primary display, insulation resistance
in MΩ is indicated in-phase with the analogic bar; on the
secondary display, the tested insulation voltage in V (DC)
is indicated, the symbol
frequently.
d) Exit the "LOCK " status by releasing the "TEST" button or
pushing down the "LOCK" button; it will shut off the high-
voltage generation, the resistance values indicated in the
primary display will be held, and the secondary display will
still be in the status of monitoring the insulation voltage for the
tested installation.
e) Subsequently, discharge the balance insulation voltage of
the tested installation through the switch of the tester.
Turning the rotary switch can exit automatically from the
testing status during the process.
is indicated.
flashes and the buzzer warns
