Automotive Professional Digital Multimeter OAS91 1.I ntroduction
Display:3 3/4 digits LCD with a maxreading of 3999
Back light / hold key
Safety: According to EN61010-1 protection class Ⅱ
over voltage category(CAT Ⅲ 600V)
Power supply : 2 × 1.5VAA batteries
Size: 145(H) × 74(W) × 40(D) mm
Weight: Approx. 500g(including battery and holster)
Quadratic signal output(reference are changeable)
2. Function
DC/AC Voltage,Resistance,DC/ AC Current,Capacitance,Frequency and Duty cycle
Temperature,Diode\ Continuity test
Tachometer, Dwell
ms-PULSE
3. Description
Display:3 3/4 digits LCD with a max . reading of 3999
Auto range / Auto power off
Back light / hold key
Safety: According to EN61010-1 protection class Ⅱ
over voltage category(CAT Ⅲ 600V) pollution degree 2
Power supply : 2 × 1.5VAA batteries
Size: 145(H) × 74(W) × 40(D) mm
Weight: Approx. 500g(including battery and holster)
4. Applications
Automotive sensor simulator
Measure output in sensors like Oxygen (O2)
Coolant Temperature, Throttle Position (TPS)
Manifold Air, Pressure (MAP), Manifold Air Flow (MAF), etc
Check grounds, Voltage drops and continuity across Connectors
Wires, Cables, Relays Contacts, Lamps, Switches, etc
Check components like Alternator
Diodes, Relays Coils
Condensers, Ignition Coils, Spark Plug Wires
Magnetic Pick-ups, Motors, Switches, Fuses, etc
5. Specifications
Function
Range
BasicAccuracy
DC Voltage 400mV , 4V, 40V 400V,1000V ± (0.5% + 3d)
AC Voltage 400mV , 4V, 40V 400V,750V ± (0.8% +3d)
DC Current 40mA , 400mA , 10A ± (1.2% + 3d)
AC Current 40mA , 400mA , 10A ± (1.5% +5d)
Resistance (Ω) 400.4K,40K,400k,4M,40M ±(1.0% + 3d)
Capacitance 40nF, 400nF, 4uF,40 uF ,100 uF ±(5.0% + 10d)
Frequency 10Hz-10MHz ±(0.5% + 3d)
Duty cycle 0.1% -99.9% ±(2.0%+1 d)
Temperature -30-+400 ℃ ± (1.2% ± 4d) +400 ℃ -+1000 ℃ ± (2.0% ± 15d)
Diode test and Audible Continuity test 0
Test current :1 ± 0.6mA 0 ≤ 60ΩBuzzer sounds
Tachometer 500-100
