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Proce
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Basic Measurement
Procedure
3
• To avoid short circuits and potentially life-threatening haz-
ards, never attach the clamp to a circuit that operates at
more than 600V, or over bare conductors.
• Clamp sensor should only be connected to the secondary
side of a breaker, so the breaker can prevent an accident if
a short circuit occurs. Connections should never be made
to the primary side of a breaker, because unrestricted cur-
rent flow could cause a serious accident if a short circuit
occurs.
• To avoid damage to the meter, do not short-circuit the output
jacks and do not input voltage to the output jacks.
• The maximum continuous-input limit is obtained from the tem-
perature increase due to self-heating during measurement. To
prevent damage to the clamp-on sensor, do not input a current
exceeding this limit.
• The maximum continuous-input limit varies depending on the
clamp-on sensor and the frequency of the current to be mea-
sured.
❖
Maximum continuous-input limit varies:
See Section 6.3 "CLAMP ON AC/DC SENSOR Specifications" (page 116)
Each sensor’s derating acording to frequency
Summary of Contents for 3290-10
Page 1: ...CLAMP ON AC DC HiTESTER INSTRUCTION MANUAL 3290 10...
Page 2: ......
Page 6: ...iv Contents...
Page 14: ...8 Usage Notes...
Page 42: ...36 2 5 Turning Power On and Off...
Page 54: ...48 3 6 Measuring Duty by Timer...
Page 149: ...4 5 6 7 8 9 10 11...
Page 150: ......