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1662/1663/1664 FC
Users Manual
8
Operation
The Product is easy to use. The rotary dial clearly indicates the selected
function. Push buttons help you to quickly modify the test settings. The
large display with backlight shows the test results in clear symbols on a
one-level menu.
Safety Features
Safety and performance are two of the most critical requirements for any
electrical system. Good quality insulation, a properly working grounding
system, and active protection assure the safety of people, electrical
systems and buildings. These factors protect them against electrocution,
fire, and other equipment damage.
Touch Pad
The button is surrounded by a touch pad (see Table 6). The touch pad
measures the potential between the operator and the PE terminal on the
Tester. If the touch pad potential exceeds 100 V, the W symbol above the
touch pad is lit, the PE annunciator in the display is lit, and the beeper
sounds.
Live Circuit Detection
For continuity and insulation resistance measurements, the Product inhibits
the test if the terminal voltage detected is >30 volts ac/dc before the test
starts. The beeper sounds continuously if this voltage is present.
Earth Resistance Measurement
The Product inhibits the test if >10 volts is detected between the test rods.
More information about Earth Resistance measurements is on page 55.
Safety Pretest
The 1664 FC model includes a Safety Pretest feature that detects any
appliances connected to the circuit under test. The Safety Pretest gives
you a warning before you start a test and prevents damage to appliances
from the test voltage. More information about Safety Pretest is on page 26.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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