ENGLISH
33
OPERATION
Measurement functions
If the display screen is blank when you turn the instrument on, it may be in standby mode.
Check whether the battery icon is displayed. If it is, the instrument may give incorrect readings.
Before taking readings, check the warning symbol next to the input terminals on the instrument.
DC voltage measurement
WARNING!
To avoid electric shock, injury or damage to the instrument, do not try to measure a DC
voltage above 1000 volts or 750 volts RMS, even if a reading can be obtained.
The DC voltage measuring ranges are: 200mV, 2V, 20V, 200V and 1000V.
To take a DC voltage reading, connect the instrument as follows:
1.
Connect the red test lead to the terminal
and the black test lead to the
COM
terminal.
2.
Set the mode selector to
.
3.
Connect the test leads across the object being measured. The reading is shown on the display.
Notes
If you do not know the approximate value of the reading you are taking, take a reading at the
highest range (1000V) then switch progressively to lower ranges until a suitable reading is
obtained.
"
1
" is displayed if the selected range is overloaded. You must select a higher range to obtain a
correct reading.
The instrument has an input impedance of approx. 10 M
Ω
in each measurement range. This
loading can cause measurement errors in high-impedance circuits. If the circuit impedance is equal
to or less than 10 k
Ω
, the error is negligible (0.1% or less).
When DC voltage measurement has been completed, disconnect the connections between the test
leads and the object being measured.
No.
Symbol
Description
1
Dangerous voltage symbol.
2
Low battery icon.
WARNING: To avoid false readings, which could lead to possible electric
shock or personal injury, replace the battery as soon as the battery
symbol is displayed.
3
Voltage or current symbol. The display shows the average reading.
4
Negative reading symbol.
5
Diode test.
6
HOLD mode is activated.
7
Continuity buzzer is on.
8 ºC
Temperature
degrees
Celsius.
9 ºF
Temperature
degrees
Fahrenheit.
10
A
mA
μ
A
Amperes. The unit of current.
mA: milliampere = 0.001 A.
μ
A: microampere = 0.000001 A.
11 mV,
V
V = Volts. The unit of voltage.
mV = millivolt = 0.001 volt.
12 nF,
μ
F
Farad. The unit of capacitance.
μ
F: microfarad = 0.000001 F.
NF: nanofarad = 0.000000001 F.
13 kHz
Hertz. The unit of frequency (cycles per second).
kHz = 1,000 Hz.
14
Ω
k
Ω
M
Ω
Ω
: Ohm. The unit of resistance.
k
Ω
: kilohm = 1000 ohms.
M
Ω
: megohm = 1,000,000 ohms.