Amprobe AU-92 Data sheet

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Data Sheet

AU92

Automotive Multimeter

Model AU92 is a full featured multimeter that has additional
measurement for automotive servicing. It offers a built-in
thermometer to measure air, surface or immersion temperatures.
The meter also tests engine RPM and dwell in addition to standard
multimeter features of voltage, current, resistance and continuity.
Perform accurate RPM measurements for 2- and 4-stroke automotive
engines using the Inductive Pickup tool. A well designed tool
for your automotive testing needs.

n Performs all standard electrical
test for on-car and bench
troubleshooting

n Tests engine RPM and dwell
n Capacitance, Frequency and

Temperature
n Measures DC/AC voltage, DC/AC

current, resistance, diodes and
continuity beeper, duty cycle

n Accurate RPM measurements
for 2- and 4-stroke automotive
engines using the inductive probe

n Locate faulty wiring and
components

n Data Hold button retains
display data

n Protective holster with magnetic
hanging strap

n Compact size
n Includes inductive pick-up probe,

carrying case, test leads, test lead
extender tips, threaded alligator
clips, type k temperature probe,
spare fuse

AU92

(note: $500 MSLP limit)

Amprobe® Test Tools

www.Amprobe.com

AU92 Automotive Multimeter

Specifications 23 °C ± 5 °C, < 75% R.H.

Function Range Accuracy

DC VOLTS

400 mV, 4 V, 40 V, 400 V, 600 V ±(1.0% rdg + 2 dgts)
Resolution: 0.1 mV
Input impedance: 400 mV: >100 MΩ; 4 V:10 MΩ; 40 V ~ 600 V: 9.1 MΩ
Overload protection: 600VDC or AC rms

AC VOLTS

400 mV, 4 V, 40 V, 400 V, 600 V
400 mV (50 ~ 100 Hz) ±(2.0% rdg + 5 dgts)
4, 40, 400, 600 V (50 ~ 500 Hz) ±(2.0% rdg + 5 dgts)
Resolution: 0.1 mV
Input impedance: 400 mV: >100 MΩ; 4 V: 10 MΩ; 40 V ~ 600 V: 9.1 MΩ
Overload protection: 600 VDC or AC rms

DC CURRENT

400 µA, 4000 µA, 40 mA, 400 mA, 10 A
400 µA to 400 mA ranges ±(2.0% rdg + 2 dgts)
10 A range ±(3.0% rdg + 3 dgts)

10A input: 10 A for 60 seconds maximum followed by a 10 minutes cooling period

Resolution: 0.1 µA
Voltage burden: 0.2 V on 400uA , 40mA ranges

2V on 4000 uA, 400 mA ranges

Input protection: 0.5 A / 500V fast blow ceramic fuse (FP520)

10 A / 500 V fast blow ceramic fuse (FP540)

AC CURRENT (50-500 Hz)

400 uA, 4000 uA, 40 mA, 400 mA, 10 A
400 uA to 400 mA ranges ±(2.5% rdg + 5 dgts)
10 A range ±(3.5% rdg + 5 dgts)

10A input: 10 A for 60 seconds maximum followed by a 10 minutes cooling period

Voltage burden: see DC Current
Input protection: see DC Current

RESISTANCE

400 Ω, 4 kΩ, 40 kΩ, 400 kΩ, 4 MΩ, 40 MΩ
Resolution: 0.1 Ω on 400 Ω range
400 Ω to 400 kΩ ranges ±(1.5% rdg + 4 dgts)
4 MΩ range ±(2.5% rdg + 4 dgts)
40 MΩ range ±(5.0% rdg + 5 dgts)
Open circuit volts: -0.45Vdc (-1.2Vdc on 400 Ω range)
Overload protection: 600 VDC or AC RMS

FREQUENCY (Hz) (Auto ranging)

4 kHz, 40 kHz, 400 kHz
Resolution: 1Hz ±(0.1% rdg + 3 dgts)
Sensitivity: 10Hz ~ 400kHz: > 3.5Vrms
Minimum pulse width: > 2.5us
Duty cycle limits: >30% and < 70%
Overload protection: 600 VDC or AC RMS

Data Sheet

Amprobe® Test Tools

www.Amprobe.com

AU92 Automotive Multimeter

Specifications, cont.

Function Range Accuracy

TEMPERATURE

Ranges: -20°C ~ 1000°C, -4°F ~ 1832°F
Resolution: 0.1°C, 0.1°F

-20°C ~ 10°C ±(2.0% rdg + 4°C)
10°C ~ 200°C ±(1.0% rdg + 3°C)

-20°C ~ 10°C ±(2.0% rdg + 4°C)
200°C ~ 1000°C ±(3.0% rdg + 2°C)

-4°F ~ 50°F ±(2.0% rdg + 8°F)
50°F ~ 400°F ±(1.0% rdg + 6°F)
400°F ~ 1832°F ±(3.0% rdg + 4°F)
Sensor type: K-type thermocouple
Overload protection: 600 VDC or AC RMS

RPM

Range: RPM 600 ~ 4000 RPM
X10 RPM 4000 ~ 12000 RPM
Resolution: 1 RPM ±(2% rdg + 4 dgts)
Effect Reading: > 600 RPM
Overload protection: 600 VDC or AC RMS

% DUTY CYCLE

1.0% ~ 90.0%
Resolution: 0.1%
Pulse width: > 100us, < 100ms ±(2% rdg + 5 dgts)
Overload protection: 600 VDC or AC RMS

DWELL ANGLE

No. of Cylinders: 4, 5, 6, 8
4 CYL 0 ~ 90.0°
5 CYL 0 ~ 72.0°
6 CYL 0 ~ 60.0°
8 CYL 0 ~ 45.0°
Resolution: 0.1° ±(2% rdg + 5 dgts)
Overload protection: 600 VDC or AC RMS

CONTINUITY

Audible indication: Less than 25Ω
Response time: 500ms
Overload protection: 600VDC or AC RMS

DIODE TEST

Test current: 1.0mA (approximate) ±(3.0% rdg + 3 dgts)
Resolution: 10mV
Audible indication: <0.25V
Open circuit volts: 3.0VDC typical
Overload protection: 600VDC or AC RMS

Data Sheet

www.Amprobe.com

AU92 Automotive Multimeter

Data Sheet

Included Accessories

One pair test leads, temperature adapter, inductive
pick-up probe, Type-K thermocouple, One spare fuse
(0.5A/500V), 9V battery (installed), carrying case and
users manual.

General Specifications

Display: 3¾ digit liquid crystal display (LCD) with a maximum reading of 3999.
Polarity: Automatic, positive implied, negative polarity indication.
Overrange: (OL) or (-OL) is displayed.
Zero: Automatic.
Low battery indication: The “ “ is displayed when the battery voltage drops below the operating level.
Measurement rate: 2 times per second, nominal.
Auto power off: Approx. 10 minutes.
Operating environment: 0°C to 50°C at < 70% RH.
Storage temperature: -20°C to 60°C at < 80% RH.
Accuracy: Stated accuracy at 23°C ± 5°C, <75% RH.
Temperature Coefficient: 0.1 × (specified accuracy) per °C. (0°C to 18°C, 28°C to 50°C).
Altitude: 2000m, indoor operation
Power: Standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22.
Battery life: 150 hours typical with carbon zinc.
Dimensions: 165 × 78 × 50 mm ( 6.5 x 3.1 x 1.9 in.)
Weight: Approx. 315g (11.1 oz). including holster.

� Safety: Meets IEC61010-1 2nd Ed., UL61010-1 2nd Ed. CAT III-600 Volts AC & DC; Class II; Pollution degree: 2; EN61010-2-032

EMC: Conforms to EN61326-1.

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Tel: 877-AMPROBE

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