FLIR CM65, User Manual

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Meter Operation
5
LoZ Voltage measurements eliminate the affects of ‘ghost’ voltages. The pro-
cedure for taking LoZ Voltage measurements is virtually the same as for tak-
ing standard Voltage measurements, the only difference is that for LoZ
Voltage measurements you select the LoZ rotary switch position. Note that
frequency (Hz) measurements are not available in Loz Voltage mode. Refer to
Section 5.7,
Voltage Measurements , for other voltage measurement details.
5.9 Low Pass Filter (VFD) Voltage Measurements
CAUTION
Use caution when the measured voltage is greater than 30V DC or AC rms.
The VFD feature in the CM65 eliminates high frequency noise in AC voltage
measurements by means of a low pass filter. The VFD mode is designed for
variable frequency drive measurements. When taking AC Voltage measure-
ments, the VFD function icon will appear on the bottom of the display. Scroll to
the icon with the arrow buttons and press the OK button to engage the VFD
mode. Press the Return button to disengage the mode (see Section 7,
Func-
tion Icons , for complete details). The procedure for taking VFD Voltage meas-
urements is identical to the procedure for taking standard Voltage
measurements. Refer to Section 5.7,
Voltage Measurements , for additional
voltage measurement details.
5.10 Milli-Volt Measurements
CAUTION
Use caution when the measured voltage is greater than 30V DC or AC rms.
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