- Digital clamp-meter measures AC and DC to 2,000A, AC voltage to 600V, DC voltage to 1,000V, frequency to 1kHz, and resistance to 400 kilohms.
- True RMS sensing meter provides accurate readings when measuring linear or non-linear loads, regardless of waveform.
- Clamp with 58mm (2.3 inches) jaw opening fits around large or multiple conductors to measure current without touching or interrupting the circuit.
- Inrush current function analyzes the surge current at the startup of motors and other inductive loads to provide accurate, stable measurements.
- Meets IEC safety standard 61010-2-032, and is rated for CAT IV installations to 600V and CAT III installations to 1,000V.
The Fluke 355 digital clamp-meter is a true RMS sensing,
auto-ranging multimeter for measuring current, voltage,
frequency, and resistance in electrical testing applications. It
has a clamp that measures AC (alternating current) and DC (direct
current) to 2,000A (amperes) (1,400A AC RMS). The clamp has two
jaws that can close around an electrical conductor up to 58mm
(2.3 inches) in diameter to measure the current of large or
multiple conductors without touching or interrupting the circuit.
A set of test leads is included for measuring AC voltage to 600V,
DC voltage to 1,000V, frequency to 1kHz (kilohertz), and
resistance to 400kΩ (kilohms). The test leads are
silicone-insulated for flexibility and resistance to heat and
cold. The meter has a rotary switch to select the property to
measure, and an LCD with a backlight for visibility in low light
that turns off automatically after five minutes.
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 minimum/maximum function
toggles to display the lowest, highest, and average readings. To
aid documentation of readings and capture readings in tight
spaces, the data hold function keeps the reading on the display
after disconnecting from the circuit. A continuity buzzer
confirms that the circuit conducts electricity. The unit operates
on six 1.5V AA batteries, and turns off automatically after 20
minutes of non-use to conserve battery life. It has a low-battery
indicator that signals when the battery needs to be replaced.
This true RMS (root mean square) sensing meter provides accurate
readings when measuring linear or non-linear loads, regardless of
waveform. It is auto-ranging, so it automatically selects the
appropriate operating range for the property being measured.
Accuracy and resolution
( https://images-na.ssl-images-.com/images/G/01/BISS/MixMeters2013/Fluke355.usermanual.pdf#page=23 )
specifications vary according to the range being measured. The
meter meets IEC (International Electrotechnical Commission)
safety standard 61010-2-032, and is rated for CAT (category) 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
1,000V, 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. It comes
with a soft carrying case.
Specifications
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Maximum AC (alternating current) input2,000A(1,400A RMS)Maximum
DC (direct current) input2,000AMaximum AC voltage
input600VMaximum DC voltage input1,000VMaximum frequency
detected1kHzMaximum resistance detected400kΩInstallation
ratingCAT IV, 600V; CAT III, 1,000VStandards metIEC safety
standard 61010-2-032; CE marking; CSA; Australia N10140Power
supply(6) 1.5V AA batteriesWeight0.814kg/1.8lb.Dimensions (H x W
x D)300 x 98 x 52mm/12 x 3.75 x 2 inches
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.
Clamp-meters, also called clamp-on meters, have two jaws that fit
around a conductor to 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. 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 voltage. 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?
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* Fluke 355 digital clamp-meter
* Test lead set
* Test probe set
* Alligator clip set
* (6) AA batteries
* Soft carrying case
* User manual