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WARNING:
AutoV mode input impedance increases abruptly from initial 2.1kΩ to a few hundred kΩ’s
on high voltage hard signals. “LoZ” displays on the LCD to remind the users of being in such
low impedance mode. Peak initial load current, while probing 1000VAC for example, can be
up to 673mA (1000V x 1.414 / 2.1kΩ), decreasing abruptly to approx. 2.4mA (1000V x 1.414
/ 580kΩ) within a fraction of a second. Do not use AutoV mode on circuits that could be
damaged by such low input impedance. Instead, use rotary selector or high input
impedance voltage modes to minimize loading for such circuits.
ACV, DCV & VFD-ACV functions
Press the SELECT button momentarily to select the subject functions in sequence. Last
selection will be saved as power up default for repeat measurement convenience.
Note:
VFD-ACV and the associated Hz are equipped with digital low-pass filter (DSP), and are
capable of handling VFD (Variable Frequency Drives) signals for fundamental V & Hz
readings. It also improves ACV and Hz reading stability when being used in most noisy
electrical environments.
Summary of Contents for E217
Page 1: ...USER S MANUAL TIS E217...
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