Amprobe AC71B Automatic AC Clamp Multimeter AC71B, AC 71 B, AC-71-B

Amprobe AC71B
Automatic AC Clamp Multimeter

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Amprobe AC71B
Automatic AC Clamp Multimeter

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Amprobe AC71B

Data Sheet

Instruction Manual

Features:

AutoTect Function - automatically selects AC volts, DC volts or resistance depending upon measurement point
Automatic bright blue backlight turns on when a dark environment is sensed
Easy one-button control
AC current to 600 A
AC volts to 750 V
DC volts to 1000 V
Resistance and Continuity Beeper
Data Hold
Conductor size 1.25 in, 32 mm, 750 MCM

Included Accessories:

Carrying Case
Test Leads
Users Manual

Description

The automatic everything clamp meter

The AC71B is a digital clamp multimeter with two additional unique features: AutoTect and automatic backlight. The Auto- Tect feature automatically senses what type of measurement is being made when the test leads are placed across a measurement point. There is no knob to turn. The meter knows what is being measured and the digital display shows the measured value along with the associated unit icon. AutoTect also utilizes a lower input impedance. This helps determine if voltage is from leakage (called ghost voltages) or a hard connection. Any ghost voltages will be zeroed out by the lower input impedance.

The automatic backlight has a sensor that recognizes when the ambient light becomes dim and turns itself on. A bright blue backlight is then available to easily read the measurement value on the digital display.

The AC71B is a complete multimeter measuring AC and DC volts, resistance, continuity in addition to the AC current. A useful tool for the electrician, plant maintenance, HVAC or field service technician.

Models, Options, & Accessories

Model

Description

List Price

Sale Price

AC71B

AUTOMATIC 600A CLAMPMETER WITH AUTOTECT

$125.94

$109.57

Model

Accessories

List Price

Sale Price

TL36A

TEST LEAD SET W/ ALLIGATOR CLIP,CAT III 1KV

$12.95

$11.27

Specifications

General Specifications

Display	6000 digit large scale liquid crystal display (LCD)
Measuring Rate	5 times per second
Overrange Display	OL is displayed
Automatic Power Off Time	Approximately 30 minutes after power on Low Battery Indication The battery symbol is displayed when the battery voltage drops below the operating level for accurate results.
Power	Single standard 9 V battery, NEDA160A
Battery Life	250 hours with an alkaline 9 V battery
Environmental	Indoor use
Operating Temperature	0°C to 30°C at ^²80 % R.H. 30°C to 40°C at ^²75 % R.H. 40°C to 50°C at ^²45 % R.H.
Storage Temperature	-20°C to 60°C at 0 to 80 % R.H. (battery removed)
Altitude	2000 m (6562 ft)
Conductor Size	32 mm diameter (1.3 in)
Max. Operation Time	Delay Time = 30s for input ^²30 V
Shock Vibration	Sinusoidal vibration per MIL-PRF-28800F (5 to 55 Hz, 3 G maximum)
Agency Approvals	CE, cCSAus
Safety	Conforms to EN61010-1:2001; CAT II 1000 V, CAT III 600 V, Pollution degree 2, Class 2
EMC	Conforms to EN61326-1.


Mechanical Specifications
Electrical Specifications ± (% reading + number of digits) at 23 °C ± 5 °C at <80 % R.H. Temperature Coefficient: add 0.2 x (Specified Accuracy)/°C, < 18 °C, >28 °C
Function	Range	Accuracy
Voltage
Voltage AC	(50 to 500 Hz) 1.3 V to 750.0 V	±(1.5% + 3 dgt)
Voltage DC	1.8 V to 1000.0 V	±(1% + 2 dgt)
	-0.6 V to -1000.0 V	±(1% + 4 dgt)
Overvoltage Protection	1000 V DC/750 V AC
Input Impedance≥	4 kW for input voltage up to 30 V. Impedance increases with input voltage to approximate 300 kΩ at 1000 V/277 kΩ at 750 V AC.
Resistance
Resistance	0.0 Ω to 99.9 Ω	±(2% + 1 Ω)
Continuity	100.0 Ω to 2000 Ω	±(2% + 2 dgt)
Overload Protection 1000	V DC / 750 V RMS
Maximum Open Circuit Voltage	1.5 V
Continuity Check
Internal sounds activate if the resistance of the circuit under test is less than 25 W. It will then turn off if the resistance is increased beyond 150 W. Temperature coefficient multiply by 1.5 when operating temperature is 40 °C to 50 °C.
AC Current
AC Current (50 to 60 Hz)	0.0 to 60.0 A	±(1.9% + 2 A)
	60.0 to 400.0 A	±(1.9% + 5 A)
	401 to 500.0 A	±(2.5% + 7 A)
	501 to 600.0 A*	±(3% + 10 A)
Overload Protection	0 to 500 A: Continuous operation
* 501 A to 600 A: 10 minutes maximum followed by 10 minute cooling period

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