Tool and Appliance Tester
Tool and Appliance Tester
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Complete UL and ANSI testing in less than
one minute
Safeguards tools and appliances against
shock hazard
Reduces downtime and protects against
injury and liability
Maintains compliance with OSHA
regulations
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DESCRIPTION
The Tool and Appliance Tester combines, in one portable
instrument, the three most frequently specified electrical
safety tests for tools and appliances. In conformance to UL
and ANSI test requirements, the instrument performs test
of ground continuity, leakage current, and electrical
insulation. It also checks the nameplate current rating of
the device.
APPLICATIONS
Poorly maintained electrical tools can become a safety
hazard and cause injury to personnel. Testing electrical
tools on a regular basis is not only safe practice against
costly repairs, but may even reduce liability. Applications
for this handy instrument include in-plant OSHA safety
surveys and production line, tool room, and repair shop
safety checks.
Ground Continuity Check
To check the integrity of the ground circuit between tool
and plug, the Tool and Appliance Tester applies a 25-
ampere test current to the ground circuit. If the ground
circuit resistance exceeds the 0.10-ohm failure threshold, a
safety interlock prevents further testing. A bypass switch is
provided to allow testing of two-wire and double-insulated
devices.
Leakage Test
This test measures the current that would result from the
ground conductor being accidentally severed; that is the
current to which the operator would be subjected if
providing a path to ground at normal line voltage. A
switch is provided to select testing at normal or reverse
polarity. Measurements from 0 to 10 mA are indicated on a
large, 3.5-in. (89 mm) analog meter with sensitivity greater
than 0.01 mA. To ensure the accuracy of the meter, a
calibration check can be initiated at the push of a button.
Insulation Breakdown (High-Pot) Test
This test measures current through insulation at high
voltage to detect weak spots in the insulation that may
cause failure in the future. Test voltage up to 3000 volts ac
may be applied, with the leakage current trip level
adjustable from 0.3 to 12 mA by a front-panel control
knob. Visual and audible alarms alert the operation to
insulation failure.
Operational Check
The Tool and Appliance Tester also provides an operation
check to verify the nameplate current rating of the tool
and to determine if maintenance is required.
Measurements up to 15 amperes are indicated.
Tool and Appliance Tester
FEATURES AND BENEFITS
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Full conformance to latest UL and ANSI test
requirements.
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Meter reading — not just “good/bad” indications.
Test procedures color-coded in sequence on front panel
for ease of use.
Ground check bypass switch permits testing of two-wire
or double-insulated devices.
Removable lid with metal tray holds device under test.
Heavy-duty case with carrying strap.
Insulation Breakdown Test
Test Voltage:
0 to 300 V ac, continuously adjustable. Applied
voltage indicated on a 3.5-in (89-mm) analog scale.
Maximum Short-circuit Current:
12.6 mA
Leakage Current Trip:
Adjustable from 0.3 to 12 mA
Failure Indication:
Audible and visual alarms
Operational Test
Indicates from 0 to 15 A ac on a 3.5-in
(89-mm) analog scale
Test Voltage:
120 V ac, 60 Hz
Environmental
Operating Temperature Range
50 to 104º F (10 to 40º C)
Storage Temperature Range
-22 to +131º F (-30 to +55º C)
Humidity
5 to 95% RH
Dimensions
10 H x 13.5 W x 10 D in.
(254 H x 343 W x 254 D mm)
Weight
28 lb (12.7 kg)
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Front-panel NEMA 5-15 output receptacle, with adapters
available to convert to a 20-ampere plug or twist lock up
to 30-amperes.
SPECIFICATIONS
Input Power Source
120 V ac ±10%, 60 Hz, 15 A
Ground Check
Failure Threshold:
0.10
Ω
Maximum Test Voltage:
3 V 60 Hz
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Maximum Test Current:
25 A
Leakage Test
Indicates from 0 to 10 mA ac on a 3.5-in. (89-mm) analog scale
with 0.01-mA sensitivity
Test Voltage: 120 V ac, 60 Hz
ORDERING INFORMATION
Item (Qty)
Tool and Appliance Tester
Included Accessories
High-voltage lead
Ground cable
Instruction manual
Optional Accessories
Adapters to convert ouput for use with
twist-lock and 20-ampere plugs
NEMA L5-15R twist lock
NEMA L5-20R twist lock
NEMA L-20 R, 20 A
NEMTA L-30R twist lock
235300-1
235300-2
235300-3
235300-4
Cat. No.
235303
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UNITED STATES
4271 Bronze Way
Dallas TX75237-1088 USA
T 800 723 2861 (USA only)
T +1 214 330 3203
F +1 214 337 3038
OTHER TECHNICAL SALES OFFICES
Valley Forge USA, Toronto CANADA,
Mumbai INDIA, Trappes FRANCE,
Sydney AUSTRALIA, Madrid SPAIN
and the Kingdom of BAHRAIN.
Registered to ISO 9001:2000 Reg no. Q 09290
Registered to ISO 14001 Reg no. EMS 61597
TOOL_APPL_TESTER_DS_en_V10
www.megger.com
Megger is a registered trademark
Embedded System
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