background image

English

GREAT BRITAIN • customer service  tel: 0845 300 9799  e-mail: [email protected]  internet: www.clasohlson.com/uk

Ver

. 20140228

USB Multimeter

Art.no 36-4717  Model  UT61D

Note: 

This is only a quick-start guide. For complete instructions 

please refer to the accompanying CD.

Please read the entire instruction manual before use and save it for 
future reference. We reserve the right for any errors in text or images 
and for making any necessary technical changes to this document. 
If you should have any questions concerning technical problems 
please contact our Customer Services.

1. Safety instructions

•  This meter is designed for indoor use.
•  Do not use this meter if it or the test leads appear to be 

damaged, or if you suspect that the meter might not work 
properly.

•  Make sure that your fingers are behind the finger guards when 

using the test leads.

•  Make sure that the power is turned off before working on 

the power circuit. Even low voltages can be dangerous!

•  To avoid shocks you need to be careful when you work with 

voltage higher then 60 V DC or 30 V AC RMS. Voltages higher 
than this pose a risk of heavy electric shocks.

•  Set the right measuring range using the selector before 

starting to measure and do not change the range whilst taking 
a measurement.

•  This meter is protected by fuses, but they will not protect 

the meter from all kinds of misuse.

2. Functions

3.  [ Range ]

•  Press once to enter manual settings mode; the buzzer 

sounds once.

•  Press repeatedly to advance through the measuring ranges; 

the buzzer sounds.

•  Hold in for two seconds to return to 

Autorange

 (automatic 

measuring range setup).

4.  [ Hold/Light ]

•  Press to save a reading (data hold function), press once 

more to delete the reading.

•  Hold in for two seconds to turn on the display backlight for 

10 seconds.

5.  Multifunction selector 

8 different measuring functions and off switch.

6.   

 Test lead sockets

7.   

 Test lead sockets

8.  [ REL 

/RS 232 (USB) ]

•  Press once to enter REL mode.
•  Press once to exit REL mode.
•  Hold in for two seconds to activate or deactivate the RS232/

USB function. The sleep function is exited when the RS232/
USB function is activated and 

 disappears from 

the display.

9.  [ Hz  % ]

•  Press to measure frequency.
•  Press to select Duty Cycle value.

10. Alternative functions (blue button) 

Press to select alternative functions for the settings modes 
in blue.

11.  

 Test lead sockets

12.  

 Test lead sockets

Display symbols

 

The data hold function is activated.

 

The sleep mode is activated.

 

Indicates a negative reading.

 

Indicator for AC measurement.

 

Indicator for DC measurement.

  The Autorange is activated (meter automatically selects 

the range with best resolution).

  Indicator for manual range mode (not on this model).

 

The reading is too high for this measuring range.

  Indicator for the diode test.

 

The continuity buzzer is activated.

  Maximum and minimum reading.

 

Data output in progress (USB/RS232).

 

Low battery warning – replace the battery.

 

REL is activated, the stored value minus the present value 

is displayed.

  Resistance, Ω Ohm, kΩ (kiloohm), MΩ (megaohm).

 

Voltage, mV (millivolt), V (volt).

 

Current, μA (microampere), mA (milliampere), 

A (ampere).

 

Capacitance; nF (nanofarad), μF (microfarad), 

mF (millifarad).

  Frequency, Hz (hertz), kHz (kilohertz), 

MHz (megahertz).

3. Operation

• 

Warning: 

Consult a qualified electrician before using 

the instrument if you are at all unsure about its usage.

•  Always ensure that the correct function and range is selected. 

If in doubt about the correct range, start with the highest and 
work downwards.

•  When measuring voltage always ensure that the meter 

is switched to the correct function range and not set to 
the current, resistance or diode test range. Always ensure 
that you use the correct test lead socket for the type of 
measurement to be made.

•  Make sure that the object to be measured is not “live”, i.e. 

conducting any current before connecting test leads in series 
with it (such as when measuring current).

•  Make sure that the test leads are in good condition with no 

damage to the insulation.

4. Voltage measurement

Measuring DC voltage

6. Resistance measurement

1.  LCD display
2.  [ Max  Min ]

•  Press to switch between max and min measured value.
•  Hold in for two seconds to return to normal display.

1.  Connect the black test 

lead to 

 and 

the red test lead to 

.

2.  Set the function selector 

to 

 for DC voltage 

measurement.

3.  If you wish to change 

the range manually, 
press  [ Range ] 
several times.

4.  Connect the test leads 

across the source or 
load to be measured.

5. DC and AC Current measurement

1.  Connect the black test 

lead to 

 and 

the red test lead to 

 (for 0–600 mA) 

or to 

 

(for the range 
600 mA – 10 A).

2.  Set the function selector 

to 

 or  .

3.  The meter is preset to 

measure DC, change 
to AC using the blue 
button (10).

4.  Connect the test leads 

in series with the current 
source to be measured.

5.  When measuring current 

between 600 mA and 
10 A (without fuse) follow 
the method above but 
connect the red test lead 
to 

 instead.

1.  Connect the black test 

lead to 

 and 

the red test lead to 

.

2.  Set the function selector 

to the resistance 
measurement  .

3.  Connect the test leads 

across the circuit to 
be tested.

7. Hold mode

1.  Press the [ Hold/Light ] to save the present reading.
2.  The buzzer sounds once and 

 appears on the display when 

Hold is activated.

3.  The reading is deleted if you press the button once again.

8. Backlight

Hold in [ Hold/Light ] for two seconds to turn on the backlight. 
The light will turn off automatically after 10 seconds.

Measuring AC voltage

1.  Connect the black test 

lead to 

 and 

the red test lead to 

.

2.  Set the function selector 

to 

 for AC voltage 

measurement.

3.  If you wish to change 

the range manually, 
press  [ Range ] 
several times.

4.  Connect the test leads 

across the source or 
load to be measured.

1

3

4

5

7

2

6

8

9

10

11
12

Содержание UT61D

Страница 1: ...ndicator for the diode test The continuity buzzer is activated Maximum and minimum reading Data output in progress USB RS232 Low battery warning replace the battery REL is activated the stored value minus the present value is displayed Resistance Ω Ohm kΩ kiloohm MΩ megaohm Voltage mV millivolt V volt Current μA microampere mA milliampere A ampere Capacitance nF nanofarad μF microfarad mF millifar...

Страница 2: ...brottsmätning kontinuitetsmätning Max min avläsning Datakommunikation USB RS232 Batterivarning byt batteri REL är aktiverad sparat mätvärde minus aktuellt mätvärde visas Motstånd Ω ohm kΩ kiloohm MΩ megaohm Spänning mV millivolt V volt Strömstyrka μA microampere mA milliampere A ampere Kapacitans nF nanofarad μF microfarad mF millifarad Frekvens Hz hertz kHz kilohertz MHz megahertz 3 Användning Va...

Страница 3: ...ikator for diodetest Summer aktivert for avbruddsmåling kontinuitetsmåling Maks min avlesning Datakommunikasjon USB RS232 Batterivarsler varsler at batteri må skiftes REL er aktivert lagret måleverdi minus aktuell måleverdi vises Motstand Ω Ohm kΩ kiloohm MΩ megaohm Spenning mV millivolt V volt Strømstyrke μA microampere mA milliampere A ampere Kapasitans nF nanoFarad μF microfarad mF millifarad F...

Страница 4: ...s vaihda paristo REL on aktivoitu näytöllä näkyy tallennettu mittaustulos josta on vähennetty tämänhetkinen tulos Vastus Ω Ohmi kΩ kiloohmi MΩ megaohmi Jännite mV millivoltti V voltti Virranvoimakkuus μA mikroampeeri mA milliampeeri A ampeeri Kapasitanssi nF nanofaradi μF mikrofaradi mF millifaradi Taajuus Hz hertsi kHz kilohertsi MHz megahertsi 3 Käyttö Varoitus Jos olet yhtään epävarma laitteen ...

Страница 5: ...r Durchgangsprüfung Max Min Ablesung Datenkommunikation USB RS232 Batteriewarnung Batterie austauschen REL ist aktiviert gespeicherter Messwert minus aktuellem Messwert wird angezeigt Widerstand Ω Ohm kΩ Kiloohm MΩ Megaohm Spannung mV Millivolt V Volt Stromstärke μA Microampere mA Milliampere A Ampere Kapazität nF Nanofarad μF Microfarad mF Millifarad Frequenz Hz Hertz kHz Kilohertz MHz Megahertz ...

Отзывы: