760J
3 1/2 DIGITAL AUTOMATIVE ENGING
ANALYZER MULTIMETER OPERATION
MANUAL
This instrument is a compact , rugged , battery operative,
handhold 3 1/2 digits automotive engine analyzer multimeter for
measuring RPM,DWELL ANGLE, DCV, ACV, OHMS, DIODE,
CONTINUITY, DCA TEMPERATURE .It is an ideal instrument for
all drivers.
1. Panel Layout
1
）
LCD Display
2
）
POWER Switch
：
Boot Up / Shutdown
3
）
Function switch indicator lamp key: Pressing the button turns
the f unction switch indicator lamp on
，
pressing it again turns it off.
4
）
Data-hold Switch (HOLD)
：
Pressing this button, the meter enters the
auto data hold mode and “HOLD” is displayed on the LCD.
5
）
Back Light Button Switch: Pressing the button turns the
backlight on
，
pressing it again turns it off.
6
）
Function switch indicator lamp
7
）
hFE Input Jack
8
）
Rotary Switch: use this switch to select functions and ranges
9) mechanical blocking
system.
10
）
V Ω/T+ Input Jack
、
20A Input Jack
、
T- Input Jack
、
COM
Input Jack
2. SPECIFICATIONS
2.1 GENERAL SPECIFICATIONS
Display : 3 1/2 digits LCD with a max . reading of 1999
Polarity : Automatic negative polarity indication..
Zero adjustment : Automatic.
Overrange indication : only the “1” display.
Lowbattery : The “
” is display .
Safety standards :
CE EMC/LVD
.
The meter is up to the
standards of
IEC1010 Pollution Degree 2, Overvoltage
Category
Ⅱ
or double insulation
Ⅲ
.
Operating environment : Temperature 32 to 104
℉
(0
℃
to 40
℃
),
humidity<85% RH.
Storage environment :
Temperature –4 to 140
℉
(-20
℃
to
60
℃
),humidity<95% RH.
Power : Single, standard 9-volt battery, NEDA 1604IEC 6F 22.
Dimension : 190mm×88.5mm×27.5mm
Weight :Approx. 320g(including battery and holster).
2.2ELECTRICAL SPECIFICATIONS
Accuracy is ±(% of reading
＋
number in last digit) at
23±5
℃
, <75% RH.
2.2.1 DC Voltage
Range
Accuracy
Resolution
200mV
±(0.5% of rdg + 8digits)
100μV
2V
1mV
20V
10mV
200V
100mV
1000V
±(1.5% of rdg + 8 digits)
1V
Impedance : 10MΩ
Overload protection: 1000V DC/AC RMS.
2.2.2 AC Voltage
Range
Accuracy
Resolution
200mV
±(2.0% of rdg + 10 digits)
100μV
2V
±(1.5% of rdg + 10 digits)
1mV
20V
10mV
200V
100mV
750V
±(2.5% of rdg + 10 digits)
1V
Impedance: 10MΩ
Frequency response:
200V: 40Hz------400Hz
750V: 40Hz------200Hz
Overload protection: 500V DC/AC RMS.
2.2.3 Resistance:
Range
Accuracy
Resolutio
n
200Ω
±(1.2% of rdg +15 digits)
100mΩ
20kΩ
±(0.8% of rdg +8 digits)
10Ω
200kΩ
100Ω
20MΩ
±(2.5% of rdg + 15 digits)
10kΩ
200MΩ
±
【
5.0% of
（
rdg-10
）
+30 digits
】
1 kΩ
Overload protection:
250VDC/AC RMS.
2.2.4 DC Current
Range
Accuracy
Resolutio
n
20A
±(2.0% of rdg + 10 digits)
10mA
Overload protection:20A/250V fuse 20A up to 10 seconds
1.2.5 Temperature (Using K type thermocouples probe)
Scale
Accuracy
Resolution
(-20
～
1000)
℃
±(3%of rdg +2 digits)
＜
400
℃
1
℃
±(3.5%of rdg +5 digits)≥400
℃
(-4
～
1800)
℉
±(3%of rdg+2 digits)
＜
750
℉
℉
±(3.5%of rdg +5 digits)≥750
℉
2.2.6
Diode test:
Range
Description
Test condition
“
Display
read
approx.
Forward voltage of
diode.
Test current : 1±0.6mA
Test voltage : Approx. 1.5V
Overload protection: 250V
DC/AC RMS
2.2.7
Continuity Test
Range
Description
Test condition
”
Audible indication: Less
than 80Ω Approx
Overload
protection:
250V DC/AC RMS
2.2.8 Tachometer
500-10000RPM:
±(1.5%of rdg
＋
8 digits)
Overload protection:
250V DC/AC RMS
2.2.9
Dwell
:
±(1.5%of rdg
＋
8 digits)
3 CYL
0 - 120.0°
4 CYL
0 - 90.0°
5CYL
0 - 72.0°
6CYL
0 - 60.0°
8CYL
0 - 45.0°
2.2.10 Transistor hFE Test
(1) Set the FUNCTION switch the “hFE” range.
(2) Determine whether the transistor is NPN or PNP and locate
the Emitter. Base and collector leads. Insert the leads into the
proper holes in the socket on the front panel.
(3)
The display will read the approximated hFE value at the
test condition Base current 10uA, Vce 3V.
2.2.11
back light
Press button "LIGHT" backlight illume, Again press once
backlight breath go out.
2.2.12 Function switch indicator lamp:
New style patent of
