Description Of Controls; Using The Ac Current Clamp 110 - Conrad 110 Bedienungsanleitung

Measurements on power sources that have inductive/capaci-
tive charges and measurements during a thunderstorm are
extremely hazardous and must therefore be avoided because
they involve particular likelihood of high voltages/discharges.
Currents in excess of 1000 A will damage the current clamp.
During a measurement, make sure that only one (1) insulated
conductor (max. diameter 57 mm) is enclosed by the jaws. It is
not possible to take a measurement on a multi-core cable (one
phase at a time).
In contrast, if the jaws are placed around two or more insulat-
ed conductors (max. total diameter 57 mm) of a multi-phase
system, the value of the reading is equivalent to the vector
sum of the individual currents.
• When safe operation is obviously no longer possible, the appli-
ance must be taken out of use and secured from being acci-
dentally switched on. It can be assumed that safe operation is
no longer possible when:
- there is visible damage to the appliance,
- the appliance is no longer working and
- the appliance has been stored for an extended period in
adverse conditions
or
- it has been exposed to adverse transport conditions.
• Never use the current clamp immediately after it has been
moved from a cold into a warm room. The condensation creat-
ed may destroy your appliance. Leave the appliance switched
off until it has reached ambient temperature.
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4. Description of Controls

See fold-out page for illustration.
1. Current clamp with a max. opened width of 57 mm (to accom-
modate busbars, component conductors, cable harnesses etc.)
and with hand guard 1a = grip protection
2. Red and black measuring lead (coiled cable), red for "+" and
black for "-". Not relevant for AC measurements
3. Opening lever for current clamp

5. Using the AC Current Clamp 110

(= Current ''Tongs'')
5.1 General
There is no need for any battery replacement with this current
clamp because it has no built-in electronics.
5.2 Connecting the measuring leads
To take measurements, only ever use the measuring leads that
are permanently attached to the current clamp. Before connect-
ing the leads, check the condition of the connectors and that the
insulation is undamaged. Connect the black measuring lead to
the COM or negative socket on your measuring appliance. Then
connect the red measuring lead to the V/W or "+" socket on your
measuring appliance. Set your appliance to its AC voltage
measuring range (ACV), selecting the smallest possible measur-
ing range. It is not necessary to set the minimum measuring
range in the case of multimeters that have an auto-range func-
tion.
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