Testboy TB 27 Analog, Руководство по эксплуатации

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Operation
Testboy
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TB 27 Analog 17
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Checking coaxial cables
In order to check coaxial cables, connect the red cable to the screening of the cable and the black
cable to the internal conductor.
Modular test (adapter)
All the necessary checks can be performed using the adapter (e.g. RJ11 or RJ45 plug to check
a telephone line or a twisted cable).
Maintenance
With the exception of the battery, the Testboy ® TB 27 Analog is maintenance-free.
To replace the battery, disconnect all the test leads, remove the screw on the battery compart-
ment and insert a new battery of the same type.
Ensure the correct polarity.
Batteries may not be disposed in the domestic waste. There will be a collection
point near you!
Cleaning
Clean every-day soiling using a moist cloth and a mild household cleaning agent. Do not use an
aggressive cleaning agent or solvent to clean the instrument.
Definition of the over-voltage categories
Measurement category II: Measurements on the power circuits fitted with a direct plug connection
to the low voltage system. Normal short circuit current < 10 kA.
Measurement category III: Measurements within the building installation (stationary consumers
with non-plug-in connection, distributor connection, permanently installed equipment in the distrib-
utor).
Normal short circuit current < 50 kA.
Measurement category IV: Measurements at the source of the low voltage installation (meters,
mains connection, primary over-current protection). Normal short circuit current >> 50 kA.
When establishing the measurement category for a combination of test probe assembly and
measuring instrument, the lowest category, either of the test probe assembly or the measuring
instrument, always applies.