Current Clamp Measurements - FLIR CM94 User Manual

5
Meter Operation

5.10 Current Clamp Measurements

Do not measure current on a circuit if the voltage increases to more than 1000 V. This can
cause damage to the instrument and can cause injury to persons.
Do not use the meter to measure current above the rated frequency. This may cause the
magnetic circuits in the jaws to reach hazardous temperatures.
Disconnect the test leads from the meter before taking Clamp measurements.
Clamp Measurement Considerations
• Press the jaw trigger to open the jaws and then clamp around the conduc-
tor(s) of only one pole of a circuit.
• Ensure that the jaws are completely closed. Enclosing conductor(s) of
more than one pole of a circuit may result in differential current
measurements.
• Align the conductor(s) to the jaws using the conductor align icons on the
clamp jaws.
• Adjacent current-carrying devices such as transformers, motors and con-
ductor wires may affect measurement accuracy.
#NAS100019; r. AC/59959/59961; en-US
WARNING
WARNING
WARNING
13