
3
�Warnings: Read Before Using
To avoid the possibility of electric shock or personal injury:
•Use the Product only as specified in this manual or the protection provided by the
instrument may be compromised.
•Avoid working alone so assistance can be rendered.
•Test on a known signal source within the rated voltage range of the Product both before
and after use to ensure the Product is in good working conditions.
•Do not use the Product around explosive gas, vapor, or in damp or wet environments.
•Inspect the Product before use and do not use if it appears damaged. Check for cracks or
missing plastic. Pay particular attention to the insulation around the connectors.
•Inspect the test leads and other accessories before use. Do not use if insulation is
damaged or metal is exposed.
•Do not use the Product if it operates incorrectly. Protection may be impaired. When in
doubt, have the Product serviced.
•Check the test leads for continuity. Replace damaged test leads before using the Product.
•Have the Product serviced only by qualified service personnel.
•Use extreme caution when working around bare conductors or bus bars. Contact with
the conductor could result in electric shock.
•Do not hold the Product beyond the tactile barrier.
•Do not apply more than the rated voltage and CAT rating, as marked on the Product,
between the terminals or between any terminal and earth ground.
•Remove test leads from the Product before opening the Product case or battery cover.
•Never operate the Product with the battery cover removed or the case open.
•Use caution when working with voltages above 30 V AC RMS, 42 V AC peak, or 60 V DC.
These voltages pose a shock hazard.
•Do not exceed the Measurement Category (CAT) rating of the lowest rated individual
component of a Product, probe, or accessory.
•Do not attempt to connect to any circuit carrying voltage that may exceed the maximum
range of the Product.
•Use the proper terminals, functions and ranges for your measurements.
•When using alligator clips and test probes, keep fingers behind the finger guards.
•Use only exact fuse replacement and specified replacement parts.
•When making electrical connections, connect the common test lead before connecting
the live test lead; when disconnecting, disconnect the live test lead before disconnecting
the common test lead.
•To avoid false readings that can lead to electrical shock and/or injury, replace the
batteries as soon as the low battery indicator appears. Check Product operation on a
known source before and after use.
•Use only AA batteries, properly installed in the Product case, to power the Product (see
Section 5.1: Battery Replacement).
•When servicing, use only specified user serviceable replacement parts.
•Adhere to local and national safety codes. Individual protective equipment must be used
to prevent shock and arc blast injury where hazardous live conductors are exposed.
•Only use the test lead provided with the Product or UL Listed Probe Assembly rated
CAT IV 600 V or better.
• Do not use the HOT STICK (TIC 410A) to operate the AT-8000-R Receiver at voltages above 600 V.
•Remove the batteries if the Product is not used for an extended period of time, or if
stored in temperatures above 122 °F (50 °C). If the batteries are not removed, battery
leakage can damage the Product.
•Follow all battery care and charging instructions from the battery manufacturer.
•Do not use the Product to check for absence of voltage. Please use an appropriate voltage
tester instead.
1. PRECAUTIONS AND SAFETY MEASURES