- Digital microohm meter has six test current and resistance ranges for low-resistance measurements from 1 microohm to 400 ohms.
- Four input terminals for taking Kelvin-type, four-wire resistance measurements, which are more accurate than two-wire resistance measurements.
- Includes PC software for configuring the meter, storing and analyzing data, generating reports, and performing temperature compensation of readings.
- Polarity reversal function improves reading accuracy by compensating for interference from thermal electromagnetic fields (EMF).
- Meets EN safety standard 61010-1, and is rated for CAT III installations to 50 volts and CAT II installations to 300 volts.
The AEMC 6240 digital microohm meter with data analysis software
is a manual-ranging four-input meter with six test current and
resistance ranges for precise, low-resistance measurements from 1
microohm (μΩ) to 400 ohms (Ω) of switches, relays, test wires,
cables, printed circuit boards, and other electrical components.
Four input terminals enable Kelvin-type, four-wire resistance
measurements, which are more accurate than two-wire resistance
measurements. The meter includes PC software for configuring the
meter, storing and analyzing data, generating reports, and
performing temperature compensation of readings. The software is
compatible with Windows XP, Vista, 7, and 8, and requires at
least 80MB of hard disk space. A cable with USB connector is
included for connecting from the meter's optical interface to a
PC. The meter's memory function allows storage of up to 99
readings. The polarity reversal function improves reading
accuracy by compensating for interference from thermal
electromagnetic fields (EMF). When measurement is complete,
residual voltage will be automatically discharged from the device
under test. Built into a sealed field case, the meter has a
4,000-count LCD with a backlight for visibility in low light. It
operates on a rechargeable 6-volt nickel-metal hydride (NiMH)
battery pack (included) and has a low-battery indicator that
signals when the battery needs to be recharged. It comes with a
set of test leads with Kelvin clips, data analysis software, a
pad of 50 test results forms, an interface cable with USB and
optical connectors, a 115V power cord, two 12.5A replacement
fuses, a carrying bag, and instructions. Milliohm meters are
commonly used for electrical maintenance and testing in
industries such as heating, ventilation, and air conditioning
(HVAC), transportation, telecommunications, power s, and
utilities, among others.
This manual-ranging meter allows the user to select the operating
range for measurements. Accuracy and resolution specifications
vary according to the range being measured. It meets European
Standard (EN) safety standard 61010-1 and is rated for category
III installations to 50 volts, which covers equipment in fixed
installations, such as switches in the fixed installation and
some industrial equipment that is permanently connected to the
fixed installation, and category II installations to 300 volts,
which covers energy-consuming equipment connected to a fixed
installation, including household, office, and laboratory
appliances. It has European Conformity (CE) marking.
Specifications
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Resistance measured1μΩ to 400ΩTest current/resistance
ranges10A/4,000μΩ, 1A/40mΩ, 1A/400mΩ, 100mA/4,000mΩ, 10mA/40Ω,
10mA/400ΩInstallation rating Category III, 50V; category II,
300VStandards met European Standard (EN) safety standard 61010-1;
European Conformity (CE) markingPower supplyRechargeable 6V
nickel-metal hydride (NiMH) battery packWeight4.5kg/10
lbs.Dimensions (H x W x D) 248 x 272 x 182mm/9.76 x 10.7 x 7.17
H is height, the vertical distance from lowest to highest point;
W is width, the horizontal distance from left to right; D is
depth, the horizontal distance from front to back.
Ohmmeters measure resistance to the flow of current in an
electrical component or circuit and check the continuity of an
electrical circuit to detect electrical problems such as degraded
insulation and improper circuit connections in equipment, wiring,
and power supplies. Resistance is an indicator of the overall
condition of the device being tested. Microohm meters and
milliohm meters measure small resistance values, and megohm
meters (also known as megaohm meters, or insulation resistance
meters) measure large resistance values. Ohmmeters have an
internal power supply, such as a battery or a capacitor, which
supplies current to a circuit or component that is turned off.
Test leads are connected in a series to the meter and the circuit
or device being tested. As current flows through the circuit or
device, the meter calculates the difference in voltage between
the leads and measures the resistance. Ohmmeters have either two
or four input terminals for test lead attachment. The
two-terminal, or two-wire, measurement method provides
measurements that include the resistance of the circuit or device
being tested and the resistance of the test leads. Megohm meters
generally use the two-wire method because it provides sufficient
accuracy for measuring large values of resistance in insulation
testing applications. The four-wire method eliminates resistance
from the test leads and measures only the resistance of the
circuit or device being tested. Milliohm and microohm meters
generally use the four-wire method because it provides a greater
degree of accuracy for measuring smaller values of resistance in
low-resistance applications.
AEMC Instruments manufactures electrical testing and measurement
instruments, including clamp meters, power quality analyzers,
ground resistance testers, and data loggers. The company, founded
in 1893, is headquartered in Foxborough, MA.
What's in the Box?
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* AEMC 6240 digital microohm meter
* Set of test leads with Kelvin clips
* Data analysis software
* Pad of 50 test result forms
* USB interface cable
* 115V power cord
* (2) 12.5A fuses
* Rechargeable 6V nickel-metal hydride (NiMH) battery pack
* Carrying bag
* Instructions