- AC/DC current: Clamp-on measurement of ac current up to 1400 A rms and dc current up to 2000 A without breaking the circuit.
- Highest safety rating: 600 V CAT IV power analyzer is rated for use at the service entrance. Battery life typically - > 10 hours (backlight on full). > 12 hours (backlight reduced).
- Accurate in noisy environments: Clamp meter performs even with distorted waveforms present on electronic loads with low-pass filter.
- Data logging: Identify intermittent faults by logging any power quality parameter for minutes, or over a month, including harmonics.
- Verify batteries: Direct measurement of dc ripple (%) for battery and dc systems.
The Fluke 345 digital clamp meter is a true RMS sensing, manual-
and auto-ranging multimeter for measuring current, voltage,
frequency, harmonics, kilowatt power usage, power factor, and
real, reactive, and apparent power in industrial electrical
testing applications. It has a clamp that measures AC current to
1,400 amp and DC current to 2,000 amp. The clamp has two jaws
that can close around an electrical conductor up to 58mm (2.24")
in diameter to measure current without touching or interrupting
the circuit. A set of test leads is included for measuring AC
voltage and DC voltage to 825V, and voltage frequency to 1kHz
(kilohertz). The meter measures real power, reactive power,
apparent power, and power factor and records the kilowatt hour
(kWHr) usage of a power source to provide data on the power
efficiency of an electrical system. It can be used for power
measurements on single- or three-phase balanced power sources.
The meter measures fundamental total harmonic distortion (THD)
and individual harmonics, which can degrade the quality of the
power being supplied by the system. The meter's inrush current
function analyzes the surge current at the startup of motors and
other inductive loads to provide accurate, stable measurements.
It features a low-pass filter that reduces high-frequency
interference to allow accurate measurements of complex wave
shapes. The meter has a rotary switch to select the property to
measure, and an LCD with a backlight for visibility in low light.
The unit operates on six AA batteries, and it has a low-battery
indicator that signals when the battery needs to be replaced.
Clamp meters are typically used by electrical engineers to
measure properties of electrical current without physically
touching or disconnecting the conductor.
This true RMS (root mean square) sensing meter provides accurate
readings when measuring linear or non-linear loads, regardless of
waveform. It has two ranging modes: manual, which allows the user
to select the operating range, and auto, which automatically
selects the appropriate operating range. Accuracy and resolution
specifications
( https://images-na.ssl-images-.com/images/G/01/BISS/ClampMeters/B005T5H1GM.datasheet.pdf )
vary according to the range being measured. It meets
International Electrotechnical Commission (IEC) safety standard
61010 and is rated for CAT IV installations to 600V, which covers
equipment at the origin of the installation, such as electricity
meters and primary over-current protection equipment, and CAT III
installations to 1000V, 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. The European Conformity (CE) marking
indicates compliance with applicable European Union directives.
The unit comes with a test lead set, alligator clips, test
probes, a USB cable, an AC adapter, Power Log software, six AA
batteries, a carrying case, and instructions.
Specifications
--------------
Maximum AC input1,400 ampMaximum DC input2,000 ampMaximum AC and
DC voltage input825VMaximum frequency detected1kHzIndividual
harmonics detected30th harmonic (40th harmonic for 15 Hz to 22
Hz)Maximum power detectedReal power: 1,650kW; reactive power:
1,250kVAR; apparent power: 1,650kVAMaximum kilowatt hour usage
detected40,000kWHrInstallation ratingCAT IV, 600V; CAT II,
1000VIngress protectionIP40Standards metIEC safety standard
61010; CE marking; CSA; Australia N10140Power supply(6) AA
batteriesWeight820g/1.8lb.Dimensions300 x 98 x 52mm/12 x 3.75 x 2
inches (H x W x D)
H is height, the vertical distance from the lowest to highest
point; W is width, the horizontal distance from left to right; D
is depth, the horizontal distance from front to back.
Clamp meters, also called clamp-on meters, measure electrical
current without cutting through wires, or touching or
interrupting the electrical circuit. Available in handheld or
benchtop models, clamp meters diagnose problems in electrical
equipment, wiring, and power supplies. A current clamp has two
jaws that fit around a conductor to take measurements. All clamp
meters test for current. Some come with test leads and inputs for
measuring voltage, capacitance, and resistance. They display
information either in analog or digital form. Factors that
influence meter choice include the electrical properties to be
measured, the anticipated range of results, and the desired level
of protection against transient voltages. Safety ratings are
based on International Electrotechnical Commission (IEC)
standards for low-voltage test equipment. IEC 61010 delineates
four overvoltage installation categories. In general, a meter
with a category IV rating will provide more protection against
transient voltages than a meter with a lower category rating.
Fluke Corporation manufactures electrical testing tools and
software for industrial and commercial applications. The company,
founded in 1948, is headquartered in Everett, WA.
What's in the Box?
------------------
* Fluke 345 power quality clamp meter
* Test lead set
* Alligator clips
* Test probes
* USB cable
* (6) AA batteries
* Power Log software
* Soft carrying case
* International AC adapter
* Instructional CD
* Instructions