Unit UT61B Manuel utilisateur
®
UT61B
MANUAL
HANDLEIDING
MODE D’EMPLOI
®
1
UT61B MODERN DIGITAL MULTIMETER
• Illustrations and tables 1
• English Operating Manual 6
• Nederlandse handleiding 16
• Mode d’ emploi français
ILLUSTRATIONS
FIG 2: voltage measurement
FIG 7: Capacitance measurement
FIG 3: AC/DC
current Measurement
FIG 4: Resistance Measurement FIG 5: Diode measurement FIG 6: Continuity measurement
FIG 8: Frequency measurement
FIG 1: The meter’s structure
FIG 9: Temperature measurement
Model: UT61B MANUAL
2
DC VOLTAGE
Range Resolution Accuracy
40mV 0,01mV +/-(0.8%+3)
400mV 0.1mV
4V 0.001V
+/-(0.5%+1)40V 0.01V
400V 0.1V
1000V 1V +/-(1.0%+3)
AC VOLTAGE
Range Resolution Accuracy
40mV 0.01mV +/-(1.2%+5)
400mV 0.1mV
+/-(1.0%+3)
4V 0.001V
40V 0.01V
400V 0.1V
750V 1V +/-(1.2%+5)
TABLES
Accuracy: +/-(a% reading + b digits) - guaranteed for 1 year
Operating temperature: 23°C +/- 5%
Relative Humidity: < 75%
Input impedance (400mV): > 3000Mall other range: 10M
Maximum input voltage: 1000V DC
Input impedance (400mV): > 3000Mall other range: 10M
Maximum input voltage: 750V AC
Displays effective value of sine wave.
mv range is applicable from 5% of range to 100% of range.
®
DC CURRENT
Range Resolution Accuracy Overload
protection
400µA 0,1µA +/-(1%+2) Fuse: 1A / 250V
Fast type 6x25mm
4000µA 1µA
40mA 0.01mA +/-(1.2%+3)
400mA 0,1mA
4A 0.001mA +/-(1.5%+5) Fuse: 10A /250V
Fast type: 6x25mm
10A 0.01A
AC CURRENT
Range Resolution Accuracy Overload
protection
400µA 0,1µA +/-(1.2%+5) Fuse: 1A / 250V
Fast type 6x25mm
4000µA 1µA
40mA 0.01mA +/-(1.5%+5)
400mA 0,1mA
4A 0.001A +/-(2%+5) Fuse: 10A /250V
Fast type: 6x25mm
10A 0.01A
RESISTANCE
Range Resolution Accuracy Overload
protection
4000.1+/-(1.2%+2)
1000V DC
750V AC
4k0.001k
+/-(1%+2)40k0.01k
400k0,1k
4M0.001M+/-(1.2%+2)
40M0.01Mk+/-(1.5%+2)
3
When <5A: continuous measurement is allowed
When >5A: continuous measurement less than 10 seconds at an interval more than 15 minutes
When <5A: continuous measurement is allowed
When >5A: continuous measurement less than 10 seconds at an interval more than 15 minutes
Displays effective value of sine wave
When measuring below 2k, apply RELto ensure measurement accuracy
Model: UT61B MANUAL
DIODE & CONTINUITY TEST
Range Resolution Remark
0.001V Open circuit voltage around 2.8V
0.1Overload protection: 1000VDC
750VAC
Broken circuit is around > 35W, the buzzer does not beep. Good circuit resistance value is < 10,
the buzzer beeps continuously.
FREQUENCY
Range Resolution Accuracy
10Hz 0.01Hz
+/-(0.1%+4)
100Hz 0.1Hz
1kHz 0.001kHz
10KHz 0.01kHz
100KHz 0.1kHz
1MHz 0.001MHz
10MHz 0.01MHz
4
CAPACITANCE
Range Resolution Accuracy
40nF 0.01nF
+/-(3%+5)
400nF 0.1nF
4µF 0.001µF
40µF 0.01µF
400µF 0.1µF +/-(4%+5)
4000µF 1µF unspecified
There is around 10nF residual reading when the circuit is open
TEMPERATURE
Range Resolution Accuracy
°C 1°C (-40° ~ -20°C): -(8%+5)
(-20° ~ 0°C): +/-(1.5%+4)
(0° ~ 100°C): +/-(1.2%+3)
(100° ~ 1000°C): +/-(2.5%+2)
°F 1°F (-40°F ~4°F): -(8%+6)
(4°F ~32°F): +/-(1.2%+5)
(32°F ~212°F): +/-(1.2%+4)
(212°F ~1832°F): +/-(2.5%+3)
Broken circuit is around > 35W, the buzzer does not beep. Good circuit resistance value is < 10,
the buzzer beeps continuously.
®
5
CONTENTS
• Overview 7
• Unpacking inspection 7
• Safety information 7
• International electrical symbols 8
• The meter structure 9
• General specifications 9
• Functional buttons 10
• Measurement operation 10
A. AC/DC voltage measurement 10
B. AC/DC current measurement 11
C. Resistance measurement 11
D. Continuity measurement 12
E. Diodes measurement 12
F. Capacitance measurement 13
G. Frequency measurement 13
H. Temperature measurement 14
• Data outputting 14
• Sleep mode 14
• Maintenance and service 15
A. General service and maintenance 15
B. Replacing the battery 15
C. Replacing the fuses 15
Model: UT61B MANUAL
6
®
OVERVIEW
This operating manual covers information on safety and cautions. Please read the relevant
information carefully and observe all the Warnings and Notes strictly.
Digital multimeter model UT61B is an auto ranging multimeter. The meter can measure AC/
DC Voltage and Current, Resistance, Diode, Continuity buzzer, Capacitance, Frequency, and
temperature. In addition to the conventional measuring functions, there is a RS232C or
USB standard serial port, data hold, relative mode, peak measurement, low battery display,
display backlight and sleep mode.
UNPACKING INSPECTION
Open the packaging of the meter and inspect to see any missing parts.
SAFETY INFORMATION
Meter UT61B complies with the standard IEC/EN61010-1, in pollution degree 2, overvolt-
age category (CAT III 1000V, Cat IV 600V) and double insulation. Use the meter only as
specified in this operating manual, otherwise the protection provided by the meter may be
impaired.
• Before using the meter inspect the case. Do not use the meter if it is damaged or the
case (or part of the case) is removed. Look for cracks or missing plastic. Pay attention
to the insulation around the connections.
• Inspect the test leads for damaged insulation or exposed metal. Replace damaged test
leads with identical model number or electrical specifications before using the meter.
• Replace the battery as soon as the battery indicator “ ” appears. With a low
battery, the meter might produce false readings that can lead to electric shock and
personal injury.
7
Item Description Quanty
1 Operating manual 1 piece
2 Test leads 1 pair
3 Point Contact K type Temperature probe 1 piece
4 UT61 multi purpose socket 1 piece
5 9V battery 1 piece
6 RS232C interface cable 1 piece
7 Installation Guide & Computer Interface Software (CD ROM) 1 piece
Model: UT61B MANUAL
8
• Do not use or store the meter in an environment of high temperature and humidity.
The performance of the meter may deteriorate after dampened.
• Disconnect circuit power and discharge all high voltage capacitors before testing
resistance, continuity and diodes.
• Do not apply more that the rated voltage, as marked on the meter in order to avoid
possible electric shock or personal injury and avoid possible damage to the meter.
• Do not change the measuring range during the testing as it causes to damage the
meter.
• When the meter working at an effective voltage over 60V in DC and 30Vrms in AC,
special care should be taken
• When each measurement has been completed, disconnect between the test leads and
the circuit under test connection, then turn the meter power off and remove the test
leads away from the input terminals of the meter
• The internal circuit of the meter shall not be altered at will to avoid damage of the
meter and any accident
• Soft cloth and mild detergent should be used to clean the surface of the meter when
servicing. No abrasive and solvent should be used to prevent the surface of the meter
from corrosion, damage and accident.
• The meter is suitable for indoor use.
INTERNATIONAL ELECTRICAL SYMBOLS
Double Insulated
Grounding
Deficiency of Built in Battery
Warning: Refer to the Operating Manual
AC (Alternating Current)
DC (Direct Current)
Conforms to Standards of European Union
®
GENERAL SPECIFICATIONS
1. Maximum voltage between any terminals and grounding. Refer to different range
input protection voltage.
2. 10A terminal: 10A H 250V Fast Type Ceramic Fuse 6x25mm.
3. µA mA terminal: 1 A H 250V Fast Type Ceramic Fuse 6x25mm.
4. Maximum display 4000.
5. Analogue bar graph 41 segments
6. Measurement speed: Updates 2 ~3 times/second
7. Range: auto or manual
8. Overload indication: OL
9. Operating temperature: 0°C~40°C (32°F ~104°F)
10. Relative Humidity: 0°C~30°C : below 75%,
30°C~40°C : 50%
11. Storing temperature: -10°C ~50°C (14°F ~122°F)
12. Electromagnetism: Under 1V/m emission: Best Total Accuracy= Specific Accuracy +
Measurement 5%. Over 1V/m emission do not have any specific index
13. Elevation: 0~2000m
14. Battery in meter: 9V 6F22 or NEDA 1604 or IEC6LR6
15. Deficiency of Built in Battery: LCD display “ ”.
16. Product size: 180mm×87mm×47mm
17. Net Weight: About 370g (battery include)
18. Safety compliances: IEC61010 CATIII 1000V CATIV 600V overvoltage and double
insulation standard.
19. Conform: CE
9
THE METER STRUCTURE
See figure 1
1. LCD Display
2. Functional Buttons
3. Blue button
4. Rotary Switch
5. Input terminal
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