Use the “FUNC” pushbutton to set the AC (
) function. Interrupt the cir-
cuit whose current is to be measured then connect the probe to the points
to be measured.
Measurement limit Resolution Accuracy
200 µA
0.1 µA
±(1.5% 4 digits)
2 mA
1 µA
20 mA
10 µA
200 mA
100 µA
10 A
10 mA
Overload protection: an F250 mA / 250 V fuse at the
socket and an
F10 A/250 V fuse at the “10A” socket. Max input current:
socket:
250 mA DC or AC RMS; at “10A” socket: 10 A DC or AC RMS. If the mea
-
sured current is greater than 5 A, the duration of continuous measurement
should not exceed 10 seconds, and at least 5 minute should elapse be-
tween two measurements.
Measuring range: 40 Hz – 400 Hz
Frequency measurement
Connect the red probe cable to the
socket, and the black one to the
“COM” socket. Set the dial to the “Hz” function. Connect the measurement
probe to the circuit to be measured.
Measurement limit Resolution Accuracy
20 kHZ
10 Hz
±(1.5% 5 digits)
Input signal level: min. 500 mV
Diode and interruption testing
Diode testing:
Connect the red probe cable to the
socket, and the
black one to the “COM” socket (the red probe is for “+” polarity). Set the dial
to the
position. Use the “FUNC” pushbutton to set the diode testing (
) function. Connect the red probe cable to diode’s anode, and the black
one to its cathode. The display will show the diode’s approximate forward
voltage. If the connection is reversed, “OL” will appear in the display. Inter-
ruption testing:
Connect the red probe cable to the
socket, and the
black one to the “COM” socket. Set the dial to the position. Use the
“FUNC” pushbutton to set the interruption testing (
) function. Connect
the measurement probe to the circuit to be tested. If the circuit is connected
to a power source, switch of the power source and discharge the capaci-
tors before starting measurement. Short-circuits (less than 100 Ω) will be
indicated by the built-in buzzer.
Function Resolution
Measuring environment
1 mV
Measurement current: approx. 1 mA
Idle voltage: approx. 1.48 V
The built-in buzzer will Idle voltage less than 500 mV
activate below 100 Ω
Resistance measurement (Ω)
Connect the red probe cable to the
socket, and the black one to
the “COM” socket. (The red probe cable is “+” polarity). Set the dial to
the “Ω” position. If the resistor to be measured is connected to a circuit,
switch of the power source and discharge the capacitors before starting
measurement.
Measurement limit Resolution Accuracy
200 Ω
0.1 Ω
±(0.8% 2 digits)
2 kΩ
1 Ω
20 kΩ
10 Ω
200 kΩ
100 Ω
2 MΩ
1 kΩ
±(1.0% 2 digits)
20 MΩ
10 kΩ
Battery and fuse replacement
If the “ ” icon appears on the display, the batteries require replac-
ing. The fuse only needs to be replaced rarely due to errors associated
with use. Prior top replacing the battery/fuse, turn off the instrument and
unplug the probe cables. For battery replacement, use a screwdriver to
remove the screw from the rear panel. For fuse replacement first remove
the instrument from its case then remove the screws from the rear panel.
Replace the battery/fuse. Observe the correct polarity. Replace the cover
and tighten the screws.
Warning:
Before opening the instrument, make sure that the probe cable has been
removed from the measuring circuit.
Replace and tighten the screws so that the device operates in a stable
manner during use and accident hazards are avoided.
Accessories: • instructions for Use • probe cable • 9 V (6F22) battery
• case
Waste equipment must not be collected separately or dis-
posed of with household waste because it may contain com-
ponents hazardous to the environment or health.
Used or waste equipment may be dropped off free of charge at the point
of sale, or at any distributor which sells equipment of identical nature and
function. Dispose of product at a facility specializing in the collection of elec
-
tronic waste. By doing so, you will protect the environment as well as the
health of others and yourself. If you have any questions, contact the local
waste management organization. We shall undertake the tasks pertinent to
the manufacturer as prescribed in the relevant regulations and shall bear
any associated costs arising.
Batteries, whether alkaline or rechargeable, must not be handled together
with regular household waste. It is the legal obligation of the product’s user
to dispose of batteries at a nearby collection center or at a retail shop.
This ensures that the batteries are ultimately neutralized in an environment-
friendly way.
Specifications
• measurement category: CAT III 600 V
• fuses: 5x20 mm, F 250 mA / 250 V quick blow; 5x20 mm, F 10 A / 250
V quick blow
• ambient temperature and humidity: 0 – 40 °C (<80% relative humidity)
• display: 3 1/2 digit LCD display
• overload protection: PTC protection (in resistance and frequency mea
-
surement)
• power supply: 9 V (6F22) battery
• reading over measurement limit: “OL” appears in the display window.
• polarity indication: “-” is displayed for negative polarity.
• exhausted battery: “
“ icon appears on the display.
• dimensions: 140 mm x 67 mm x 30 mm
• weight: approx. 112 g
