Uni-T UT204 Bedienungsanleitung

Uni-T UT204
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PDF Bedienungsanleitung
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BedienungsanleitungUni-T UT204
D. Testing for Continuity (See Figure 6)
Figure 6
Red Black
Warning
To avoid damage to the Meter or to the devices
under test, disconnect circuit power and discharge
all the high-voltage capacitors before measuring
continuity.
To test for continuity, connect the Meter as follows:
Insert the red test lead into the Hz Duty%
terminal and the black test lead into the
COM terminal.
Set the rotary switch to and press SELECT
button to select measurement mode.
The buzzer sounds if the resistance of a circuit
under test is less than 50
1.
2.
3.
The buzzer may or may not sounds if the resistance of a circuit under test is
between 50
to 100
The buzzer does not sound if the resistance of a circuit under test is higher than
100
When continuity testing has been completed, disconnect the connection between
the testing leads and the circuit under test and remove testing leads from the input
terminals.
Note
E. Measuring Frequency (See Figure 7)
Warning
To avoid harm to you or damage to the Meter
from eletric shock, do not attempt to measure
voltages higher than 600V AC/DC, although
readings may be obtained.
The frequency ranges are:
10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz and
10MHz.
To measure frequency, connect the Meter as follows:
Insert the red test lead into the Hz Duty%
terminal and the black test lead into the
COM terminal.
1.
2.
3.
Figure 7
Red Black
Set the rotary switch to Hz.
Connect the test leads across with the object beingmeasured.
The measured value shows on the display.
Press to subtract a stored value from the present measurement value
and displays a result.
When current measurement has been completed, disconnect the connection
between the conductor under test and the jaw, and remove the conductor away
from the transformer jaw of the Meter.
REL
Note

Sleep Mode

To preserve battery life, the Meter automatically turns off if you do not turn the rotary
switch or press any button for around 15 minutes.
The Meter can be activated by turning the rotary switch or pressing the button based
on The Effectiveness of Functional Buttonson section. Pressing SELECT to
activate the Meter will disable the Sleep Mode feature.
The Meter beeps 5 times in about 1 minute before entering Sleep Mode and will
have a 1 long beep just before entering Sleep Mode.
To disable the Sleep Mode function, press and hold SELECT button while turning on
the Meter.

General Specifications

Maximum Voltage between any Terminals and grounding: Refer to different range
input protection voltage.
Display: 3 3/4 digits LCD display, Maximum display 3999
Polarity: Automatically display.
Overloading: Display OL or –OL
Low Battery Indication: Display
Measurement Speed: Updates 3 times/second.
Measuremnet Deviation: The conductor being meaured is not placed in the center
of the jawt during AC/DC current measurement, it will cause extra
1% deviation
based on the stated accuracy.
Drop Test: 1 meter drop test passed.
Max. Jaw Opening: 28mm diameter.
Max. Tested Current Conductor: 26mm diameter.
Electro-Magnetic: When carrying out measurement near the electro-magnetic, it
may cause unstable or wrong reading.
Power: 1 x 9V battery (NEDA1604 or 6F22 or 006P)
Remarks:
Input impedance: 10M
Frequency response: 40Hz~400Hz.
AC Conversion Type:
Average-responsed. Input sinewave and the reading is RMS value.
AC-coupled and TRUE RMS-responsed. Sinewave is input. Non-sine wave must
follow the accuracy below:
Peak factor: 1.4~2.0, add 1.0% on the stated accuracy
Peak factor: 2.0~2.5, add 2.5% on the stated accuracy
Peak factor: 2.5~3.0, add 4.0% on the stated accuracy.
UT203:
UT204:
C. Resistance
Range Resolution Accuracy Overload protection
400.0
4.000k
40.00k
400.0k
4.000M
40.00M
100m
1
10
100
1k
10k
(1.2%+2)
(1%+2)
(1.2%+2)
(1.5%+2)
600Vp
D. Diode
Range Resolution Accuracy Overload protection
1mV
Display approximate
forward voltage drop
600Vp
Remark: Open circuit voltage approximate 1.48V.
E. Continuity
Range Resolution Accuracy Overload protection
100m
Around 10 ,
the buzzer beeps
600Vp
Remark:
Open circuit voltage approximate 0.45V.
The buzzer may or may not beep when the resistance of a circuit under test is
between 10
~100
The buzzer will not beep when the resistance of a circuit under test is > 100 .
Input amplitude a:
10Hz100kHz : 30V rms ≥ a ≥300mV rms
100kHz10MHz : 30V rms ≥ a ≥600mV rms
G. Duty Cycle
Range Resolution Accuracy Overload protection
0.1% For reference only 600Vp0.1%~99.9%
H. DC Current
Range Resolution Accuracy Overload protection
0.01A
0.1A
400A DC/AC
40.00A
400.0A
(2%+5)
(2%+3)
Warning
The operating temperature must be 0ºC ~40ºC when measuring current.
Remark:
If the reading is positive, the current direction is from bottom to up. See figure 10,
the front case face up while the bottom case face down. Hold the Meter tight, do
not release suddenly. The built-in Hall components are very sensitive not only to
the magnet but also to heat and machines reaction force. Any shock will cause
the changing in reading in the short time. Following the below procedure to
measure AC current will obtain a more precise reading:
1. Hold the Meter tight and press the trigger to open the transformer jaw. Center the
conductor within the transformer jaws, then release the Meter slowly until the
transformer jaw is completely closed. Make sure the conductor to be tested is
placed at the center of the transformer jaw, otherwise it will cause +1.0% deviation
based on the stated accuracy.
I. AC Current
Range Resolution Accuracy Overload protection
0.01A
0.1A
400A DC/AC
40.00A
400.0A
(2.5%+8)
(2.5%+5)
50Hz ~ 60Hz
Frequency Response
Warning
The operating temperature must be 0ºC ~40ºC when measuring current.
Remark:
It may have 10 digits or less unstable or wrong digits, it will not affect measurement
result.
Hold the Meter tight, do not release suddenly. The built-in Hall components are
very sensitive not only to the magnet but also to heat and machines reaction
force. Any shock will cause the changing in reading in the short time. Following
the below procedure to measure AC current will obtain a more precise reading:
Hold the Meter tight and press the lever to open the transformer jaw. Center
the conductor within the transformer jaws, then release the Meter slowly until
the transformer jaw is completely closed. Make sure the conductor to be tested
is placed at the center of the transformer jaw, otherwise it will cause +1.0%
deviation based on the stated accuracy.
1.
UT203:
Average-responsed. Input sinewave and the reading is RMS value.
UT204:
AC-coupled and TRUE RMS-responsed. Sinewave is input. Non-sine wave must
follow the accuracy below:
Peak factor: 1.4~2.0, add 1.0% on the stated accuracy
Peak factor: 2.0~2.5, add 2.5% on the stated accuracy
Peak factor: 2.5~3.0, add 4.0% on the stated accuracy.
Remove the transformer jaw.
Press to display zero.
Repeat Step 1
The obtained reading will be more precise.
2.
3.
4.
5.
AC Conversion Type:
REL

Maintenance

This section provides basic maintenance information including battery replacement
instruction.
Warning
Do not attempt to repair or service your Meter unless you are qualified to do so
and have the relevant calibration, performance test, and service information.
To avoid electrical shock or damage to the Meter, do not get water inside the case.
A. General Service
Periodically wipe the case with a damp cloth and mild detergent. Do not use
abrasives or solvents.
To clean the terminals with cotton bar with detergent, as dirt or moisture in the
terminals can affect readings.
Turn the Meter power off when it is not in use.
Take out the battery when it is not using for a long time.
Do not use or store the Meter in a place of humidity, high temperature, explosive,
inflammable and strong magnetic field.
B. Replacing the Battery (See Figure 10)
Warning
To avoid false readings, which could lead to possible
electric shock or personal injury, replace the battery
as soon as the battery indicator appears.
Make sure the transformer jaw and the tets leads are
disconected from the circuit being tested before
opening the case bottom.
To replace the battery:
Turn the Meter off and remove all the connections from the input terminals
Turn the Meter’s front case down.
Remove the screw from the battery compartment, and separate the battery
compartment from the case bottom.
Take out the old battery and replace with a new 9V battery (NEDA1604, 6F22 or
006P ) .
Rejoin the case bottom and the battery compartment, and reinstall the screw.
Figure 10
1.
2.
3.
4.
5.
** END **
This operating manual is subject to change without notice.
Screw
When frequency measurement has been completed, disconnect the connection
between the testing leads and the circuit under test, and remove the testing leads
away from the input terminals of the Meter.
Note
F. Measuring Duty Cycle(See Figure 8)
Warning
To avoid harm to you or damage to the Meter
from eletric shock, do not attempt to measure
voltages higher than 600V AC/DC, although
readings may be obtained.
The duty cycle range is: 0.1%~99.9%.
To measure duty cycle, connect the Meter as follows:
Insert the red test lead into the Hz Duty%
terminal and the black test lead into the
COM terminal.
1.
2.
3.
REL
Set the rotary switch to Hz and press to select Duty Cycle measurement
mode.
Connect the test leads across with the object beingmeasured.
The measured value shows on the display.
Figure 8
Red Black
When duty cycle measurement has been completed, disconnect the connection
between the testing leads and the circuit under test, and remove the testing leads
away from the input terminals of the Meter.
Note
Battery Life: typically 150hours (alkaline battery)
Sleep Mode (can be disabled)
Dimensions (H x W x L): 208mm x 76mm x 30mm.
Weight: Approximate 260g (battery included)
The Meter is suitable for indoor use.
Altitude: Operating: 2000m
Storage: 10000m
Safety/ Compliances: IEC 61010 CAT.II 600V, CAT.III 300V “CAT.III300V and
Double Insulation"
Temperature and humidity:
Operating: 0ºC~30ºC (
85%R.H);
30ºC~40ºC (
75%R.H);
40ºC~50ºC (
45%R.H);
Storage: -20ºC~+60ºC (
85%R.H)
G. Measuring DC/AC Current (See Figure 9)
The current ranges are: 40.00
and 400.0 .
To measure current, do the following:
1.
2.
3.
Figure 9
Set the rotary switch to 40 or 400 . DC
measuremnet mode is a default. Press SELECT to
switch between DC and AC measurement mode.
Hold the Meter tight, dont release. The Hall
components are very senstive not only to the magnet
but also to heat and machines reaction force. Any
shock will cause the changing in reading in the short
time.
Press the trigger to open the transformer jaw.
A
A
A A
40A
400A
4.
Center the conductor within the transformer jaw, then release the Meter slowly until
the trasnformer jaw is completely closed, Make sure the conductor to be tested
is placed at the center of the transformer jaw, otherwise it will casue deviation.
The Meter can only measure one conductor at a time, measuring more than one
condutor at a time will cause deviation..

Accuracy Specifications

Accuracy: (a% reading + b digits), guarantee for 1 year.
Operating temperature: 23ºC
5ºC
Relative humidity:
85%R.H
Temperature coefficient: 0.1x(specified accuracy)/1ºC
A. DC Voltage
Range Resolution Accuracy Overload protection
400.0mV
4.000V
40.00V
400.0V
600V
0.1mV
1mV
10mV
100mV
1V
(0.8%+3)
(0.8%+1)
(1%+3)
600V DC/AC
Remarks: Input impedance: 10M
B. AC Voltage
Range Resolution Accuracy Overload protection
4.000V
40.00V
400.0V
600V
1mV
10mV
100mV
1V
(1%+5)
(1.2%+5)
600V DC/AC
2. Remove the transformer jaw.
3. Press to display zero.
4. Repeat Step 1
5. The obtained reading will be more precise.
REL

P/N:110401104333X

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