Fluke 77/BN - Page 14

TOUCH HOLD
To reduce the likelihood of a spurious
reading, take the following precautions;
1. Connectthe COM lead (black) firmly
to circuit ground, or earth, before using
the Touch Hold. If both probes are
hand held, and circuit ground is un-
known or unavailable, try to touch both
probes simultaneously to the measured
circuit.
2. Minimize hand contact with test
probes; a good technique is to hold the
probes with fingertips only.
3. Short the probe leads together as
soon as possible after a Touch-Hold
reading has been acquired.
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4. Use shielded test leads or a coaxial
cable adapter.
5. For high voltage measurements,
separate test leads from each other
(do not twist together).