CAT III 1000V, true rms, L/C/R
AUTOMOTIVE
TESTER
Model : DM-9131
Your purchase of this
AUTOMOTIVE TEST
marks a step forward
for you into the field of
precision measurement.
Although this
Automotive test is a
complex and delicate
instrument, its durable
structure will allow
many years of use if
proper operating
techniques are
developed. Please read
the following
instructions carefully
and always keep this
manual within easy
reach.
OPERATION MANUAL
TABLE OF CONTENTS
1.
FEATURES....................................................................................................
1
2.
SPECIFICATIONS...................................................................................
2
2-1 General Specifications...........................................................................
2
2-2 Electrical Specifications..........................................................................
3
3.
FRONT PANEL DESCRIPTION...................................................................
7
4. PRECAUTIONS & PREPARATIONS FOR
MEASUREMENT..........................................................................................
8
5.
MEASURING PROCEDURE..........................................................................
9
5-1 Symbols & Units of Display ...................................................................
9
5-2 DC voltage, AC voltage true rms Measurement ...........................
10
5-3 Resistance Measurement.........................................................................
10
5-4 DC current, AC current true rms Measurement ..................................
11
5-5 Continuity Check ...................................................................................
12
5-6 Diode Test ..............................................................................................
12
5-7 Capacitance Measurement.......................................................................
14
5-8 Inductance Measurement.........................................................................
14
5-9 L/C Calibration........................................................................................
15
5-10 Frequency Measurement.......................................................................
15
5-11 Temperature Measurement....................................................................
16
5-12 Tach. Measurement …………………………………………………………
16
5-13 "DWELL ANGLE" Measurement 17
5-14 Point check…………………………………………………………………..
19
5-15 Optional Adapter…………………………………………………………
19
5-16 Relative Measurement...........................................................................
20
5-17 Data Hold Operation..............................................................................
20
5-18 LCD Backlight ON/OFF........................................................................
20
5-19 Max/Min. value record...........................................................................
21
5-20 RS232 Computer Interface.......................................................................
21
6.
ADVANCED SETTING.................................................................................
23
8-3 Set Auto power OFF management..................................................................
24
8-4 Set beeper sound ON/OFF..................................................................
25
8-6 Set clock time(Year/Month/Date,Hour/Minute/Second)............................
26
8-7 Set Change the Temp.
℃, ℉
unit...........................................................
26
7.
MAINTENANCE...........................................................................................
26
7-1 Replacement of Battery...........................................................................
26
7-2 Cleaning...................................................................................................
26
7-3 Replacement of Fuse...............................................................................
27
8.
OPTIONAL ACCESSORIES & ADAPTERS .................................................
28
9.
THE ADDRESS OF AFTER SERVICE CENTER..........................................
29
1. FEATURES
* Meet IEC 1010 CAT III 1000 V safety requirement.
* LCD with green light backligh, easy reading.
* 6000 counts A/D, high resolution.
* Multi function measurement. DCV, ACV, DCA, ACA,
Resistance, Capacitance, Inductance, Frequency,
Temperature, Diode, Continuity beeper, TACH,
DWELL, POINT, 2000A Clamp
* Max. & Min. measurement value with recall.
* Relative, Data hold.
*
Auto range with manual range selection.
*
Temperature measurement posibility.
*
V/A/Hz button, when execute the ACV, ACA function also
can measure the frequency of signal.
*
Both 10 A, 6A current are build fuse for safety
consideration.
* 10 M ohm impedance for voltage circuit.
* Operates from 9 V ( 006P, MIN1604 ) batteries.
* Built-in overload protection for most ranges.
* Photo couple RS 232 computer serial interface.
* Uses durable, long-lasting components, enclosed in
strong, light weight ABS-plastic housing.
* Full line optional adapters : Clamp adapter,
Tachometer adapter, Pressure adapter, Humidity
Adapter, Sound level adapter, Anemometer adapter,
Light adapter, EMF adapter.
1
2. SPECIFICATIONS
2-1 General Specifications
Display 60 mm x 39 mm large LCD display
Measurement DCV, ACV, DCA, ACA, Resistance,Diode,
Continuity beeper,Capacitance,
Inductance, Frequency, Temperature.
A/D counts no. 6000 counts.
Range selection Auto range with manual range selecting.
Special function Relative measurement
Data hold
To freeze the display reading on the
LCD display.
Power On/Off Auto power of or manual power off.
management @ Details please refer page 7
Memory recall Records Maximum & Minimum readings
with recall.
Relative To offset the measurement value.
measurement
V/A/Hz button
When execute the voltage or current
function also can measure the frequency
of signal.
Data output RS 232 PC serial interface, photo couple.
Polarity Automatic Switching, " - " indicates
negative polarity.
Zero adjustment Automatic.
Sampling time Approx. 0.5 to 1 second.
Operating
0 ℃ to 50 ℃ (32 ℉ to 122 ℉),
Temp. & humidity Max. 80% RH.
Power supply 9 V ( 006P, MIN1604 )
DC 9V adapter input
*AC/DC Power adapter is optional.
Power consumption Approx. DC 7.0 mA.
Weight 378 g/0.83 LB ( w.o battery ).
Dimension 190 x 88 x 40 mm ( 7.5 x 3.5 x 1.6 inch ).
2
Accessories
Red and Black Test Leads…………………
1 Set
Included
Instruction Manual.....................................
1 PC
Optional Full line adapters :
accessories ACA/DCA current adapter,
Tachometer adapter,
Humidity adapter, Pressure adapter,
Light adapter, EMF adapter,
Sound level adapter,
High voltage probe.
AC to DC 9V Adaptre…………………... AP-9VA
Holster……………………………………... HS-03
Type K Temperature probe.....................
TP-11
Soft carryinfg case....................................
CA-05A
RS232 cable to D-Sub 9 connector..............................................
UPCB-06
RS232 cable to USB connector........................
UPCB-11
RPM inductive pick up sensor………….. IP-09
Data Acquisition software……….. SW-U801-WIN
SW-E802
2-2 Electrical Specifications (23±5
℃℃℃℃
)
DC Voltage
Range 600.0 mV /6 V/60 V/600 V /1000 V
Resolution 0.1 mV /0.001V /0.01V /0.1V/1 V
Accuracy ± ( 0.5% + 2d ) 600 mV
± ( 0.8% + 1d ) 6 V, 60 V, 600 V, 1000 V
Input impedance 10 M ohm.
Over load 600 mV range ± 380 DCV, 380 ACV
protection other ranges ±1000 DCV, 1000 ACV
AC Voltage ( True RMS )
Range 600.0 mV /6 V/60 V/600 V /1000 V
Resolution 0.1 mV /0.001V /0.01V /0.1V/1 V
Accuracy ± ( 1% + 2d )
* Spec. are tested under 50/60 Hz.
Input impedance 10 M ohm.
Over load 600 mV range ± 380 DCV, 380 ACV
protection other ranges ±1000 DCV, 1000 ACV
3
DC Current, AC Current ( True RMS )
DC Current, AC Current ( True RMS )DC Current, AC Current ( True RMS )
DC Current, AC Current ( True RMS )
Range 10 A / 6 A
Resolution 0.01 A / 0.001A
Accuracy DCA ACA
6 A ± (1.5%+2d) ± (1.5%+2d)
10 A ± ( 1.5 % + 2d ) ± ( 1.5 % + 2d )
* ACA spec. are tested under 50/60 Hz.
Over load 10A fuse.
protection
Diode ( Forward voltage, VF )
Diode ( Forward voltage, VF )Diode ( Forward voltage, VF )
Diode ( Forward voltage, VF )
Range 2.9 V DC.
Accuracy ± ( 0.5% + 2d )
Capacitance
CapacitanceCapacitance
Capacitance
Auto Range 600 pF/6 nF/60 nF/600 nF/6 uF/60 uF/100 uF/600 uF
Resolution
0.1 pF/0.001 nF/0.01nF/0.1 nF/0.001 uF/0.01 uF/0.1 uF/1uF
600 pF ±( 2.5% + 5d )
Accuracy 6 nF/60 nF/600 nF/6 uF/60 uF ±( 1.5% + 5d )
100uF/600 uF ±( 2.5% + 5d )
Test frequency
100Hz /1KHz /10KHz (Auto frequency configuration)
Remark Discharge capacitor before testing.
Over load protection
±30 DCV, 30 ACV.
Inductance
InductanceInductance
Inductance
Auto Range 600 uH/6 mH/60 mH/600 mH/6 H/60 H/100 H
Resolution 0.1uH/0.001mH/0.01 mH/0.1 mH/0.001 H/0.01 H/0.1 H
Test frequency
100Hz /1KHz /10KHz (Auto frequency configuration)
600 uH ±( 5% + 5d )
Accuracy 6 mH/60 mH/600 mH/6 H ±( 1.5% + 5d )
60 H /100 H ±( 2.5% + 5d )
Over load protection
±30 DCV, 30 ACV.
4
Frequency
FrequencyFrequency
Frequency
Range 600 Hz/6 KHz/60 KHz/600 KHz/6 MHz/20 MHz
Resolution
0.1 Hz/0.001 KHz/0.01 KHz/0.1 KHz/0.001 MHz/0.01 MHz
Accuracy ±( 0.5% + 2d )
Sensitivity Min. 1 V rms, Max. 5 V rms.
OHMS
Range 600 Ω/6 KΩ/60 KΩ/600 KΩ/6 MΩ/60 MΩ
Resolution 0.1Ω/0.001 KΩ/0.01 KΩ/0.1 KΩ/0.001 MΩ/0.01 MΩ
Accuracy 600 ohm : ±( 1 % + 2d )
6K/60K/600K/6 M : ±( 1.5 % + 2d )
60 M : ±( 3 % + 5d )
Over load ±350 DCV, 350 ACV.
protection
Continuity Beeper
Beeper will sound if measured resistance less than 20 ohm.
Max. & Min. Measurement
During the operation can memorize the maximum and the
minimum measurement value.
Temperature
Auto Range Resolution Accuracy
-100.0 ℃ to 199.9 ℃ 0.1 ℃ ±( 1% + 1 ℃ )
200 ℃ to 1000 ℃ 1 ℃
-148.0 ℉ to 391.9 ℉ 0.1 ℉ ±( 1% + 2 ℉ )
392 ℉ to 1832 ℉ 1 ℉
Temp. probe The temperature probe ( TP-11 ) is the
optional accessory.
5
TACH
Range 500 -30000RPM
Resolution
10RPM
Accuracy ±( 1% + 2d )
OVERLOAD 24V DC/AC RMS ( within 1 min )
PROTECTION
DWELL
CYLINDER 3 CYL 4CYL 5CYL 6CYL 8CYL DUTY CYCLE
Range 0-120° 0-90° 0-72° 0-60° 0-45° 0-100%
Resolution
0.1°
0.1° 0.1° 0.1° 0.1° 0.1%
Accuracy ±( 1 % + 2d )
Over load ±200 DC/AC RMS (within 15 sec)
protection
Point
Range
≧ 0.2V ＜0.2V
ACCURACY
60V DC chang good ±( 1.2% + 2d )
Resolution 0.01V DC
Accuracy ±( 1.2% + 2d )
OPTIONAL ADAPTER
Range MAX. DISPLAY PER DIGIT ACCURACY
CAPACITY EQUAL
2000A 2000 1mV DC/AC ±( 1.2% + 2d )
IR TEMP 600.0 0.1mV DC
Remark :
* Spec. tested under the environment RF Field Strength
less than 3 V/M & frequency less than the 30 MHz only.
6
3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display 3-10 Function rotary switch
3-2 MAX/MIN ( ▼ ) button
3-11 Temp./ohm/V/Cap. input terminal
3-3 TIME (SET) button 3-12 COM input terminal
3-4 REL(Backlight) button 3-13 DWELL / TACH input terminal
3-5 HOLD ( ▲ ) button
3-14 10A input terminal
3-6 RANGE button 3-15 Battery compartment/Cover
3-7 VAHz button 3-16 RS232 terminal
3-8 ENTER button 3-17 DC 9V Power Adapter Input Socket
3-9 AC/DC button
7
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