UNI-T UT603 Bedienungsanleitung Seite 3

component, place the red test clip on the componentís
ated besides the input
anode and place the black test clip on the componentís
cathode.
The display shows the diode forward voltage drop's
see figure 3)
Messung
nearest value.
Note
Bevor Sie messen
or to the devices under
In a circuit, a good diode should still produce a forward

and discharge all the
! voltage drop reading of 500mV to 800mV; however, the
Achtung: Messen Sie auf keinen Fall Spannungen!
measuring resistance.
reverse voltage drop reading can vary depending on the
00 , 2k , 20k , 200k ,
resistance of other pathways between the probe tips.
• Kontrollieren Sie vor Beginn aller Messungen immer erst das Messgerät und alle Zusatzteile.
Model UT90C: OPERATING MANUAL
 Connect the test clips to the proper terminals as said
• Achten Sie auf Schäden, Verschmutzung (Staub, Dreck, Fett, usw.) und Defekte.
connect the Meter as
above to avoid error display. The LCD will display "1"
Model UT90C: OPERATING MANUAL
• Schauen Sie nach, ob die Messkabel brüchig sind oder die Isolierung beschädigt ist, ersetzen Sie die Messleitungen
indicating open-circuit for wrong connection. The unit of
Rotary Switch
terminal and umgehend, wenn dies der Fall ist! diode is Volt (V), displaying the positive-connection
Rotary Switch
rminal. voltage-drop value.
• Vergewissern Sie sich, dass die Messleitungen gut in die Anschlussbuchsen passen. Versuchen Sie nicht eine Messung
Below table indicated for information about the rotary
ge. When diode test has been completed, disconnect the

vorzunehmen, wenn es irgendwelche Fehler gibt.
switch positions.
Below table indicated for information about the rotary
s with the object being connection between the testing clips and the circuit under
• Nehmen Sie das Messgerät erst in Betrieb, wenn sich beide Messleitungen fest in den Messbuchsen befinden. switch positions.
test and remove the testing clips away from the input
Rotary
ows on the display. terminals of the Meter. Function
Switch
Rotary
Widerstandsmessung Function
Position
Switch
Testing for Continuity
OFF Power is turned off.
Position
!
Messen Sie keine unter Spannung stehenden Widerstände!
To test for continuity, connect the Meter as below:
0 range, the test clips Button Description
OFF Power is turned off.
AC/DC voltage measurement.
tance. To obtain precise
1. Insert the red test clip into the
AC/DC voltage measurement.
: Diode test.
Press the Power down to turn the Meter on.
• Stecken Sie die schwarze Messleitung in die COM-Buchse und die rote Messleitung in Power
e measurement, that is
the black test clip into the COM terminal.
Model UT90C: OPERATING MANUAL
: Diode test.
die Ω -Buchse. : Continuity test.
Press the Power again to turn the Meter power off.
circuit the input terminals
2. Set the rotary switch to
sonal injury,
Model UT90C: OPERATING MANUAL
Model UT90C: OPERATING MANUAL
: Continuity test.
ing obtained (called this • Drehen Sie den Drehwahlschalter auf Widerstandsmessung mit dem gewünschten Button
3. Connect the test clips across with the object being : Capacitance test.
ter or to the Press HOLD once to enter the hold feature, the LCD
Hold
Rotary Switch Model UT90C: OPERATING MANUAL
nal resistance from the
measured.
Messbereich. : Capacitance test.
owing rules: Power Press the Power down to turn the Meter on.
Ω Ω
Rotary Switch
display : Resistance measurement. .
(UT602
4. The beeper comes on continuously when the resistance
• Schalten Sie das Messgerät mit der POWER-Taste 7 ein.
Ω Ω Press the Power again to turn the Meter power off.
Hz Frequency Test.
Below table indicated for information about the rotary : Resistance measurement.
or personal injury, Rotary Switch
value of the tested circuit 10 . The beeper may or
Do not use Press HOLD again to exit hold feature, the
only)
• Verbinden Sie die Messklemmen der Messleitung mit dem Messobjekt.
switch positions.
Hz Below table indicated for information about the rotary Frequency Test.
the Meter or to the may not come on when the resistance value of the test Press HOLD once to enter the hold feature, the LCD
(X) = precision readings Hold
part of the
AC or DC Current Measurement
disappear.
• Der Widerstandswert lässt sich nun am Display ablesen. switch positions.
he following rules: circuit>10
Below table indicated for information about the rotary
ing plastic. (UT602 display .
AC or DC Current Measurement
Rotary
5. The Meter displays the value of the test resistance.
Press L-C down to enter the Capacitance
L-C switch positions.
onnectors. there is no input, for
e case. Do not use Press HOLD again to exit hold feature, the
Switch only)
 230V MAX:
Rotary
Diodentest/Durchgangsprüfung Function
Position measurement mode.
ase (or part of the (UT603
Switch Note Charge at 220VAC.
disappear.
ulation or CHARGE  230V MAX:
or missing plastic.
Position OFF  12-36V Power is turned off. : Charge at
Charge at 220VAC.
Press L-C up to enter the Inductance measurement
ent (>1M ), it is normal ! CHARGE only)
continuity. The LCD displays "1" indicating the circuit being tested Press L-C down to enter the Capacitance
L-C 
Das Messobjekt darf beim Messen nicht unter Spannung stehen!
12-36V .
nd the connectors.
 12-36V : Charge at
OFF Power is turned off.
AC/DC voltage measurement. Position
tain a stable reading. (figure 3)
cal model is open.
mode.
measurement mode.
(UT603 12-36V .
ged insulation or
AC/DC voltage measurement. : Diode test.
• Stecken Sie die schwarze Messleitung in die COM-Buchse und die rote Messleitung When continuity test has been completed, disconnect
e using the 
t has been completed,
only) Press L-C up to enter the Inductance measurement
ips for continuity.
the connection between the testing clips and the circuit : Diode test.
een the testing clips and
in die Ω -Buchse. : Continuity test.
h identical model
mode.
under test and remove the testing clips away from the
e the testing clips away
: Continuity test.
• Drehen Sie den Drehwahlschalter auf
s before using the : Capacitance test.
input terminals of the Meter.
Meter.
• Schalten Sie das Messgerät mit der Power-Taste 7 ein. : Capacitance test.
n the right
Ω Ω
: Resistance measurement.
.
• Diodentest: Verbinden Sie die rote Messklemme mit der Anode und die schwarze
ge shall be Ω Ω
Hz Frequency Test.
: Resistance measurement.
aced in the right to prevent Messklemme mit der Kathode der Diode. Bei einer Silizium-Diode sollte ein Wert
Hz Frequency Test.
AC or DC Current Measurement
of range shall be
von 500...800 mV angezeigt werden.
AC or DC Current Measurement
nducted to prevent
tween the • Durchgangsprüfung: Verbinden Sie die Messklemmen mit dem Messobjekt. Der
(figure 4)
 230V MAX:
ctric shock
Summer ertönt bei einem Widerstandswert von ≤10 Ω. Der genaue Widerstandswert wird auf dem Display angezeigt.
Charge at 220VAC.
ms between the
CHARGE (figure 1)
 230V MAX:
 12-36V
void electric shock Charge at 220VAC.
CHARGE
12-36V
(figure 1)
 12-36V : Charge at
d range for Kapazitätsmessung
CHARGE
12-36V .
Display Symbols
on, and range for
!
Alle Kondensatoren müssen vor dem Messen entladen werden !
ronment of
Meter or to the devices under
an environment of flammable
No. Symbol Meaning
10
Messung über Messbuchsen:
power and discharge all the
osive, inflammable No. Symbol Meaning
ance of the
10
Stecken Sie die schwarze Messleitung in die --Buchse und die rote Messlei-
•
efore measuring diodes and The battery is low.
1
erformance of the
m p e n e d .
The battery is low.
1
tung in die +-Buchse 5.
Warning: To avoid false readings,
t e r d a m p e n e d .
DC 60V or AC 30V voltages
e all high- Warning: To avoid false readings,
• Drehen Sie den Drehwahlschalter auf die Kapazitätsmessung mit dem ge-
scharge all high- which could lead to possible electric shock
and damage to the Meter.
sistance,
which could lead to possible electric shock
wünschten Messbereich.
ting resistance,
or personal injury, replace the battery as
or personal injury, replace the battery as
.
• Schalten Sie das Messgerät mit der Power-Taste 7 ein.
soon as the battery indicator appears.
y indicator
soon as the battery indicator appears.
e battery indicator
• Drücken Sie die LC-Taste 2 bis sie sich im eingerasteten Zustand befindet.
diodes, transistors, and other
eter might
the Meter might β Transistor Test
e diode test sends a current 2 β Transistor Test
• Verbinden Sie die Messklemmen mit dem Kondensator. 2
ctric shock
d to electric shock
junction, and then measures
Test of diode. Test of diode.
• Der Kapazitätswert lässt sich nun am Display ablesen. 3 3
unction. A good silicon junction
The continuity buzzer is on.
• Achten Sie bei Elektrolyt-Kondensatoren darauf, dass die rote Messklemme am 4 The continuity buzzer is on.
4
800mV.
and turn the Meter
n the Meter
Pluspol und die schwarze Messklemme am Minuspol angeklemmt werden muss.
, connect the Meter as follows:
he Meter case.
Measurement Operation
er case.
Measurement Operation
y the same model
4
ame model o the terminal and
Make sure the Low Battery Display

l specifications
10
Make sure the Low Battery Display

COM terminal.
fications otherwise false readings may be provided.
otherwise false readings may be provided.
Pay extra attention to the

Model UT602/603: OPERATING MANUAL
P/N:110401103689
terminal and
Model UT602/603: OPERATING MANUAL
C. Capacitance Measurement (UT603 only, see figure 5)
.
Description
Warning
Rotary Switch
To avoid damage to the Meter or to the equipment
under test, disconnect circuit power and discharge all
Below table indicated for information about the rotary
high-voltage capacitors before measuring capacitance.
switch positions.
Use the DC Voltage function to confirm that the
Function
capacitor is discharged.
Rotary
Function
Switch
The Meter's capacitance ranges are: 2nF, 20nF, 200nF,
Rotary
Function
Position
Switch 2µF, 20µF, 200µF and 600µF.
OFF Power is turned off.
To measure capacitance, connect the Meter as follows:
OFF Power is turned off.
AC/DC voltage measurement.
AC/DC voltage measurement. : Diode test. 1. Set the rotary switch to F measurement mode. If the
value of capacitor to be measured is unknown, use the
: Diode test.
. : Continuity test.
maximum measurement position 600µF and decrease
: Continuity test.
: Capacitance test.
the range step by step until a satisfactory reading is
: Capacitance test.
obtained and the overloading icon "1" is disappeared.
Ω Ω
: Resistance measurement.
Ω Ω 2. Insert the red test clip into the CAP + terminal and black
Hz Frequency Test.
: Resistance measurement.
test clip into the CAP - terminal. For small value
Hz Frequency Test.
AC or DC Current Measurement
capacitor measurement, insert the capacitor into the
AC or DC Current Measurement small value jack.
(figure 2)
3.
Use the red test clip to clip the capacitor's positive and
 230V MAX: Warning
: Charge at (figure 2)
Charge at 220VAC. the black test clip to clip the capacitor's negative when
CHARGE
 230V MAX:
.
Warning
 12-36V : Charge at To avoid damages to the Meter or to the devices under
the capacitor has polarity.
Charge at 220VAC.
12-36V .
 12-36V : Charge at test, disconnect circuit power and discharge all the
(see figure 2) 4. The measured value shows on the display.
To avoid damages to the Meter or to the devices under
12-36V .
high-voltage capacitors before measuring diodes and
test, disconnect circuit power and discharge all the
Display Symbols
(see figure 2)
continuity.
high-voltage capacitors before measuring diodes and
continuity.
Do not input more than DC 60V or AC 30V voltages
Do not input more than DC 60V or AC 30V voltages
to avoid electric shock and damage to the Meter.
to avoid electric shock and damage to the Meter.
Testing Diodes
Testing Diodes
Use the diode test to check diodes, transistors, and other
Use the diode test to check diodes, transistors, and other
semiconductor devices. The diode test sends a current
semiconductor devices. The diode test sends a current
through the semiconductor junction, and then measures
through the semiconductor junction, and then measures
the voltage drop across the junction. A good silicon junction
the voltage drop across the junction. A good silicon junction
drops between 500mV and 800mV.
drops between 500mV and 800mV.
To test a diode out of a circuit, connect the Meter as follows:
To test a diode out of a circuit, connect the Meter as follows:
1. Insert the red test clip into the
1. Insert the red test clip into the
Note
the black test clip into the COM terminal.
10 the black test clip into the COM terminal.
To minimize the effect of capacitance stored in the test
is not on, 
2. Set the rotary switch to
is not on, 10
2. Set the rotary switch to
clips, the test clips should be as short as possible and
3. For forward voltage drop readings on any semiconductor
10
symbol, before carrying use the small value jack when measuring small value of
Messung über Messsockel:
• Drehen Sie den Drehwahlschalter auf Kapazitätsmessung mit dem gewünschten Messbereich.
• Schalten Sie das Messgerät mit der Power-Taste 7 ein.
• Drücken Sie die LC-Taste 2 bis sie sich im eingerasteten Zustand befindet.
• Stecken Sie die Pins des Kondensators in den Messsockel 5.
• Der Kapazitätswert lässt sich nun am Display ablesen.
• Achten Sei bei Elektrolyt-Kondensatoren darauf, dass sich der Pluspol links und der Minuspol rechts befindet.
Induktivitätsmessung
!
Die Spule darf beim Messen nicht unter Spannung stehen!
Messung über Messbuchsen:
• Stecken Sie die schwarze Messleitung in die --Buchse und die rote Messlei-
tung in die +-Buchse 5.
• Drehen Sie den Drehwahlschalter auf die Induktivitätsmessung mit dem ge-
wünschten Messbereich.
• Schalten Sie das Messgerät mit der Power-Taste 7 ein.
• Drücken Sie die LC-Taste 2 bis sie sich im nicht eingerasteten Zustand
Remarks:
befindet.
When carrying out measurement at 2mH, short circuit

• Verbinden Sie die Messklemmen mit der Spule.
the test clip first, then carrying out the measurement.
The actual correct reading is the measured reading
• Der Induktivitätswert lässt sich nun am Display ablesen.
minus the short circuit reading.
Messung über Messsockel:
When testing a small value inductance, it is better to use

• Drehen Sie den Drehwahlschalter auf Induktivitätsmessung mit dem gewünschten Messbereich.
(figure 3) the small value jack.
• The Meter cannot check the quality of the inductance. Schalten Sie das Messgerät mit der Power-Taste 7 ein.

When inductance measurement has been completed,

• Drücken Sie die LC-Taste 2 bis sie sich im nicht eingerasteten Zustand befindet.
disconnect the connection between the testing clips and
(figure 3)
• Stecken Sie die Pins der Spule in den Messsockel 5.
the circuit under test and remove the testing clips away
• Der Induktivitätswert lässt sich nun am Display ablesen.
from the input terminals of the Meter.
Transistor-Test
• Überprüfen Sie den Typ Ihres Transistors (PNP oder NPN), sowie die Pinbelegung (mit Hilfe eines Datenblatts).
• Drehen Sie den Drehwahlschalter auf "h
• Schalten Sie das Gerät mit der POWER-Taste 7 ein.
(figure 4)
• Setzen Sie den Transistor in den entsprechenden Sockel 3.
(figure 4) • Bitte beachten Sie die Pinbelegung des Transistors:
B = Basis
C = Collector
E = Emitter
E. Transistor hFE Measurement (see figure 7)
• Am Display ist nun der Stromverstärkungsfaktor h
To measure transistor, set up the Meter as follows:
Set the rotary switch to hFE measurement mode.
1.
Technische Daten
Check that the transistor is PNP or NPN type.
2.
Insert the Insert the transistor to be measured to the
3.
Allgemein
corresponding Transistor Jack
• Betriebsspannung:
4. The Meter displays the tested transistor's nearest value
• Display:
Note:
• Sicherung:
When transistor measurement has been completed,

• Ausleserate:
disconnect the connection between the testing clips and
• Betriebstemperatur:
the circuit under test and remove the testing clips away
from the input terminals of the Meter.
• Lagertemperatur:
• General Specifications Relative Luftfeuchte:
Fused Protection for Inductance Input Terminal (UT602):

(figure 5) • Maße (LxBxH):
0.315A, 250V, fast type fuse, 5x20 mm.
terminal and
Fuse Protection for Inductance and capacitance Input
terminal and
Terminal (UT603):
. 0.315A, 250V, fast type fuse, 5x20 mm.
.
Maximum Display: Display: 1999.

Remarks:
Overload protection: 250V DC or AC rms at all ranges.
P/N:110401103689 
At 20M

12 digits is normal. During measurement minus these
C. Capacitance Measurement (UT603 only, see figure 5)
12 digits from the obtained reading.
 When measuring 20 and 200
Warning
clips to display the resistance value of the test lead.
Subtract this value from the measurement value to obtain
To avoid damage to the Meter or to the equipment
under test, disconnect circuit power and discharge all the correct tested value.
high-voltage capacitors before measuring capacitance.
B. Continuity & Diodes
Use the DC Voltage function to confirm that the
capacitor is discharged.
Function
The Meter's capacitance ranges are: 2nF, 20nF, 200nF,
2µF, 20µF, 200µF and 600µF.
Diode
To measure capacitance, connect the Meter as follows:
Continuity
".
FE
1. Set the rotary switch to F measurement mode. If the
Remarks:
value of capacitor to be measured is unknown, use the
Diode:

maximum measurement position 600µF and decrease
Open Circuit Voltage around 5.8V, forward current around
the range step by step until a satisfactory reading is
1mA.
obtained and the overloading icon "1" is disappeared.
(figure 7) Continuity

2. Insert the red test clip into the CAP + terminal and black
test clip into the CAP - terminal. For small value
> 10 , beeper may or may not comes on.
capacitor measurement, insert the capacitor into the
abzulesen.
small value jack. C. Capacitance Test (UT603 only)
FE
3. Use the red test clip to clip the capacitor's positive and
the black test clip to clip the capacitor's negative when Range
the capacitor has polarity.
4. The measured value shows on the display. 2.000nF
9 V- (Blockbatterie)
20.00nF
4-stellig, 1999 Zähleinheiten
200.0nF
0,315 A, 250 V, flink, 5x20 mm
2.000µF
2-3x pro Sek.
20.00µF
0...40 °C
200.0µF
-10...50 °C
600µF
≤ 75 % (0...30 °C)
Remarks:
≤ 50 % (31...40 °C)
Overload Protection

172x83x38 mm
0.315A, 250V, fast type fuse, 5x20 mm
Measure of Capacitance:

1F=10
(figure 5)
Discharge all high-voltage capacitors before testing

Note
capacitance.
clips, the test clips should be as short as possible a
use the small value jack when measuring small value
capacitance.
The Meter cannot check the quality of the capaci

For large capacitor, please make sure the contac

stable and reliable.
When the tested capacitor is leaking or damaged a

the tested value is not stable, the capacitor may ha
problems. You need to use other tools or equipmen
check and confirm.
When capacitance measurement has been complet
disconnect the connection between the testing clips a
the circuit under test and remove the testing clips aw
from the input terminals of the Meter.
Model UT602/603
range, short circuit test lead, LCD displaying
Remarks:
(figure 6)
When carrying out measurement at 2mH, sh

range, short circuit test
D. Inductance Measurement (see figure 6) the test clip first, then carrying out the meas
The actual correct reading is the measured
To test the inductance, please follow the following procedu
minus the short circuit reading.
1. Set the rotary switch to Lx measurement mod
When testing a small value inductance, it is bet

2. If the tested inductance value is unknown, use t
the small value jack.
maximum measurement position and decrease the ran
The Meter cannot check the quality of the ind

step by step until a satisfactory reading is obtaine
Overload
When inductance measurement has been co

Range Resolution
3. Insert the test clips into the corresponding Lx inp
disconnect the connection between the testing Protection
terminals.
the circuit under test and remove the testing c
4. Use the test clips to clip the inductance to carry out t
1mV
250V rms
from the input terminals of the Meter.
testing.
1
5. The measured value shows on the displa
10 , beeper comes on continuously.
(figure 7)
Testing Frequ-
Resolution E. Transistor hFE Measurement (see figure 7) Accuracy
ency / Voltage
To measure transistor, set up the Meter as
0.001nF
Set the rotary switch to hFE measuremen
1.
Check that the transistor is PNP or NP
2.
0.01nF (1%+5) 1kHz/150mV
Insert the Insert the transistor to be measur
3.
0.1nF
corresponding Transistor Jack
0.001µF
The Meter displays the tested transistor's near
4.
0.01µF (4%+5) 100Hz/15mV
Note:
0.1µF
When transistor measurement has been co

0.001mF disconnect the connection between the testing Reference only 100Hz/1.5mV
the circuit under test and remove the testing cl
from the input terminals of the Meter.
General Specifications
Fused Protection for Inductance Input Termina

5
3 mF = 10 6 µF= 10 9 nF = 10 12 pF
0.315A, 250V, fast type fuse, 5x20 mm.
Fuse Protection for Inductance and capacitan