Zhangzhou Weihua DT5811 Operator's Manual

DT5811 Operator's Manual
1. INTRODUCTION
This AUTOMOTIVE TESTER is a compact precision, battery operated, LCD
display 3-½ digits Digital Instrument..
Superiority:
High accuracy
Digital height 22mm
Single 30 position rotary switch for FUNCTION and RANGE
selection, allows fast and convenient operation.
Curvilinear mode soft case.
Colored indication jack with fully protection test leads.
Lower overage power Auto-Power Off
2. GENERAL SPECIFICATION
1) Display: 3-½ digits LCD with a maximum reading of 1999.
2) Measurement rate: updates 2-3/sec.
3) Over range indication: "1" figure only in the display
4) Automatic negative polarity indication.
5) The " " is displayed when the battery voltage drops below the
operating voltage.
6) Full range over load protection.
7) Auto Power Off: It will be automatically cut off in about 15 minutes after
the power is turned on. It needs to be turned off and turned on again to
continue the power.
8) Operating temperature: 0°C~40°C, 0~75% R.H.
Storage temperature: -10°C~50°C, 0~75% R.H.
9) Power: Single standard 9V battery IEC 6F22,NEDA 1604, JIS 006P.
10) Dimensions: 176L*88W*38Hmm.
11) Weight: approx 310g (including battery)
12) Accessories: test leads (pair), spare fuse 0.5A piece in case, operator's
manual.
3. ELECTRICAL SPECIFICATIONS
Accuracy is given as ± (% of reading + number of least significant digits) for
one year, at 23°C±5°C RH<75%
1) DCV
R ange
2V
20V
200V
1000V
Input impedance: 10MΩ on all range
2) ACV
R ange
2V
20V
200V
750V
Input impedance: 10MΩ
3) DCA
R ange
20m A
200m A
20A
Measuring voltage drop: 200mV
4) ACA
R ange
20m A
200m A
20A
Measuring voltage drop: 200mV
5) OHM
R ange
200Ω
20K Ω
200K Ω
20M Ω
6) TEMPERATURE
R esolution A ccuracy
1m V
±(0.8% +2)
10m V
0.1V
1V ±(1.0% +2)
R esolution A ccuracy
1m V
±(0.8% +3)
10m V
0.1V
1V ±(1.2% +3)
Frequency range: 40 ~ 400Hz
R esolution A ccuracy
10uA ±(1.8% +2)
0.1m A ±(2.0% +2)
10m A ±(2.0% +10)
R esolution A ccuracy
10uA ±(2.0% +3)
0.1m A ±(2.0% +5)
10m A ±(2.5% +10)
Frequency range: 40 ~ 400Hz
R esolution A ccuracy
± (1.0% ± 10)
0.1Ω
10Ω
± (1.0% ±4)
100Ω
± (1.0% ± 10)
10K Ω
R ange
-40℃ ~ 400℃
400℃ ~ 1000℃
With K-type thermocouple wire
7) DWELL ANGEL
R ange
3 C YL
4 C YL
5 C YL
6 C YL
8 C YL
8) TACHO
R ange
3 C YL
4 C YL
20000P R M
5 C YL
6 C YL
8 C YL
4.
PRECAUTIONS AND PREPARATIONS FOR MEASUREMENT
1) Be sure that battery is correctly placed in the battery case and
connected to the battery snap.
2) Don't exceed the input limit shown below:
Function Range
DCV 2~1000V
ACV 2~750V
OHM
Diode
DCA 200mA
ACA 200mA
DCA 20A
ACA 20A
3) Inspect the test leads for damaged insulation or exposed metal. Check
Test lead continuity. Damaged leads should be replaced.
4) Select the proper function and range for your measurement.
5) Check the input terminal position for red test lead depends on
measurement ranges.
6) Either one of the test leads should be taken off from the circuit under test
when changing the test ranges.
7) To avoid electrical shock or damage to the meter; Do not apply more
then 500V between any terminal and earth ground.
8) To avoid electronic shock, use caution when working above 60VDC or
25VAC rms, such voltage pose a shock hazard.
9) When finished the measurement, switch off the power. Be sure to
remove the battery when it is not used for a long time to avoid leakage
problem.
10) Do not tamper with the circuitry to avoid damage.
11) Do not use or store the instrument in a place of direct sunlight, high
temperature and high humidity.
5. METHOD OF MEASUREMENT
5.1 DCV & ACV MASUREMENT
1) Set the Function range switch at the required position.
2) Connect black test lead to "COM" terminal and red test lead to the "VΩ"
input terminal.
3) Connect test leads to measuring point and read the display value the
polarity of the red lead connection will be indicated at the same time as the
voltage.
Note:
a) If the voltage to be tested is unknown beforehand, set the Function
range switch to the highest range and work down.
b) When only the figure "1" is displayed over range is being indicated
and the function range switch has be set to a higher range.
c) Never try to measure the voltage above 1000V! Although the
indication is possible to show, there is danger of damaging the
internal circuitry.
5.2 DCA & ACA MEASUREMENT
1) Connect the black test lead to the "COM" terminal and the red test lead
to "mA" terminal for a maximum of 0.2A.
2) Set the function range switch at the required position.
3) Connect test leads to measuring points and read the display value. The
polarity at the red test lead connection will be indicated at the same time as
the current.
Note:
a) If the current range is unknown beforehand, set the function range
- 1 -
R esolution A ccuracy
±(1.0% +4)
1℃
±(1.5% +15)
S cope(°) R esolution A ccuracy
0 ~ 120
0 ~ 90
0 ~ 72 0.1° ± (2.0% ±5)
0 ~ 60
0 ~ 45
S cope R esolution A ccuracy
10 x R P M ± (1.5% ±5)
Input terminals Maximum input
1000VDC
VΩ COM
750VAC
VΩ COM 250V DC/AC
mA COM 200mA DC/AC
20A
A COM
20A
DC/AC
DC/AC