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GENERAL SPECIFICATIONS
Klein Tools ET250 is a solid-state, digital voltage and continuity
tester. It measures AC/DC voltages up to 600V and tests for
continuity. Additionally, the ET250 tests GFCI protected circuits to
verify that the GFCI device is functioning appropriately. The tester
includes a backlight and worklight for working in reduced ambient
lighting conditions.
• Operating Altitude: ≤ 6562 ft. (2000 m)
• Relative Humidity: <80% non-condensing
• Operating Temperature: 5°F to 113°F (-15°C to 45°C)
• Storage Temperature: -4°F to 140°F (-20°C to 60°C)
• Battery Type: 3 x 1.5V AAA
• Dimensions: 6.06" x 2.33" x 1.64" (153.8 x 59.2 x 41.6 mm)
• Weight: 6 oz (170 g) without test leads
• Calibration: Accurate for one year
• Standards:
Conforms to EN61326-1:2013, EN61326-2:2013,
UL STD. 61010-1, 61010-2-030 and
61010-2-033.
Certified to CSA STD. C22.2 NO. 61010-1,
61010-2-030 and 61010-2-033
• Pollution degree: 2
• Drop Protection: 9.8 ft. (3m)
• Ingress Protection:
IP53 (see WARNINGS)
• Safety Rating: CAT IV 600V, Class 2, Double insulation
CAT IV: Measurement category IV is applicable to test and
measuring circuits connected at the source of the building’s
low-voltage MAINS installation.
• Electromagnetic Environment: IEC
EN61326-1:2013
. This
equipment meets requirements for use in basic and controlled
electromagnetic environments like residential properties,
business premises, and light-industrial locations.
Specifications subject to change.
ENGLISH
ELECTRICAL SPECIFICATIONS
• AC Voltage Range: 2 – 600V AC RMS (45 – 400Hz)
• DC Voltage Range: 2 – 600V DC
• Maximum Measurable Voltage:
600V RMS
• Resolution: 1V
• Accuracy: ±(2% + 2V)
• Test Current:
< 0.3mA at 120V AC RMS or 120V DC
• Continuity: 0 – 270kΩ
• GFCI Test:
>6mA via button
• Nominal Voltage GFCI Testing: 10-135V AC at 50/60Hz in
3-wire outlet
• Auto-Detect: Tester auto-detects and selects VAC / VDC /
Continuity modes
Specifications subject to change.
WARNINGS
To ensure safe operation and service of the tester, follow these
instructions. Failure to observe these warnings can result in
severe injury or death.
• Before each use verify tester operation by measuring a known voltage.
• Never use the tester on a circuit with voltages that exceed the
category based rating of this tester.
• Do not use the tester during electrical storms or in wet weather.
• Do not use the tester or test leads if they appear to be damaged.
• Replacement test-leads should conform to EN 61010-031 and
be rated CAT IV 600V, 10A, or better. Do not use lower rated
test leads.
• Ensure tester leads are fully seated, and keep fingers behind
the finger guards and away from the metal probe contacts
when making measurements.
• Use caution when working with voltages above 25V AC RMS
or 60V DC. Such voltages pose a shock hazard.
• To avoid false readings that could lead to electric shock,
replace batteries when a low battery indicator appears.
• Always adhere to local and national safety codes. Use personal
protective equipment to prevent shock and arc blast injury
where hazardous live conductors are exposed.
• Tester is IP53 dust & water resistant. Following any contact
with water, thoroughly dry tester and test lead jacks prior to
subsequent use.
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