RS PRO RS-218, Instruction Manual

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4 5
02/12/2017 Version No. 001
7-Symbols Used on LCD Display
V Volts
A Amperes
~ Alternating current
Direct current
Minus sign
Ω
Ohms
Continuity
Diode test
F Farads(capacitance)
Hz Hertz(frequency)
% Percent(duty ratio)
n nano(10-9)
μ micro(10-6)
m milli(10-3)
k kilo(103)
M mega(106)
OL Overload
Low battery
AUTO Autoranging
8-Operation
8-1.MODE Button
Used to select AC or DC and Ohms, Diode Test, Continuity or Capacitance.
8-2.Flashlight/Backlight Button
Momentarily press the button to turn the flashlight on and off.
The backlight illuminates the LCD display when the ambient light is too low to view the
displayed readings. To turn on, press and hold the
button until the backlight turns
on. To turn off, press and hold the button again until the backlight turns off.
8-3.Hz/% Duty Cycle Button
Used to select Frequency or % Duty Cycle when the meter is set to voltage.
8-4.AC/DC Voltage Measurements
WARNING: Observe all safety precautions when working on live voltages.
1. Set the rotary function switch to the
position.
2. Press the MODE button to select AC or DC voltage. The“~”(AC) or “ ”(DC) symbol
will be shown on the LCD display.
3. Touch the test lead probes to the circuit under test. When measuring DC voltage, touch
the red probe to the positive side of the circuit and the black probe to the negative side
of the circuit.
4. Read the voltage in the display.
8-5.Frequency and % Duty Cycle Measurements
WARNING:
Observe all safety precautions when working on live voltages.
1. Set the rotary function switch to the “ ” position.
2. Press the Hz% button once to select frequency. The “ Hz ” symbol will appear on the
display. To select Duty Cycle, press the Hz% button a second 2- time. The “ % ” symbol
will appear on the display.
3. Touch the test lead probes to the circuit under test.
4. Read the frequency or % duty cycle on the LCD display.
5. Pressing the button a third time will return the meter to the voltage function.
8-6.AC/DC Current Measurements
WARNING:
Observe all safety precautions when working on live circuits. Do not measure
current on circuits that exceed 500V.
1. For current measurements up to 200mA AC/DC, set the rotary function switch to the
mA position.
2. For current measurements up to 4000μA AC/DC, set the rotary function switch to the
μA position.
3. Press the MODE button to select AC or DC current. The “~” (AC) or “ ” (DC) symbol
will be shown on the LCD display.
4. Remove power from the circuit under test, then open up the circuit at the point where
you wish to measure current.
5. Touch the test lead probes in series with the circuit being measured. For DC current,
touch the red probe to the positive side of the circuit and touch the black probe to the
negative side of the circuit.
6. Apply power to the circuit.
7. Read the current on the LCD display.
Pocket Multimeter with NCV Tester/ English Pocket Multimeter with NCV Tester/ English