AT2150/B Automotive Tester
User’s Guide
Introduction
AT2150/B series digital multimeter is a 3½ digital with precise
design, convenient for operation, stable performance and with
multi-functions measuring instrument. It was designed with new
style guarantees protective covering, large screen liquid crystal
display. It uniquely incorporate with back light valve features, so it
is suitable to be used in the obscure ray environment operation.
The ”VΩ” is equipped with PTC heat sensitive element at the input
terminal. Therefore, the Function/Range switch has efficient
protection.
AT2150/B series digital multimeter can measure DC Current
and Voltage, Current, AC Current and Voltage, Resistor, Capacitor,
Temperature, Diode and Transistor, Open Circuit and Short Circuit.
In addition, AT2150/B digital multimeter is also suitable for vehicles.
Safety Precautions and Procedures
for your own safety, you must read and follow the procedure in this
instruction manual.
don’t try to use it if the battery cover is not closed properly,
otherwise you may have the danger of electric shock.
make sure the insulation layer has not any damages before use it.
never input signal electronic level exceeding the limited value to
avoid electronic shock or damaging the instrument.
don’t turn the function/range switch when taking measurement.
the potential difference between the measurement public terminal
COM and earth can’t exceed 1000V to avoid electric short.
pay attention if the tested voltage is over DC 60V and AC 42V to
avoid electric shock
if there have a symbol on the LCD display, it indicates low
battery. replace the battery to ensure measurement accuracy.
For the fuse, it must be replaced with an identical model if necessary.
International Symbols
DC Current or Voltage AC Current or Voltage Diode
Buzzer Low Battery Cautions Double Insulation
Danger High Voltage Rotational Speed Closed Angle
Characteristic
Low power consumption CMOS double integration, A/D transform
integrated circuit, auto zero calibration, auto polarity display, low
battery and over range indication.
DC basic accuracy : +0.5% (3 1/2 digits)
Capacitor measurement : 1pF~200uF
Temperature measurement : -40ºC~1000ºC
Full range over-load protection function.
Have back-light valve features, it is suitable to be used in the obscure
ray environment operation.
Auto power off function: the meter will shut off automatically about
15 seconds after no performance.
Maximum display : 1999 (3 1/2 digits)
LCD display : 70 x 48mm big screen, high contrast, Word height :
28mm
Power : one 9V battery (NEDA 1604, 6F22 model or identical)
Low battery indication: mark on display
Size : 192x88x42mm
Weight : approximate 400g (including battery and cover)
Environment conditions :
Operation temperature : 0ºC~40ºC Relative humidity <85%
Storage Temperature : -10ºC~50ºC Relative humidity <85%
Keeping accuracy temperature : 23ºC+5ºC
Relative humidity <75%
Technical Specifications
Accuracy : + (% reading + digit) one year warranty.
Environmental humidity : 23ºC+5ºC
Relative humidity : <75%
Closed Angle Gauge
