18
and monitor line voltage changes over a much wider
dynamic range with the best resolution. It largely
surpasses single range recording which is easily over-
flowed, or with insufficient resolution. The instruments
feature a fast single range sampling speed of 50ms for
MAX, MIN, MAX-MIN and AVG readings. The faster the
sampling speed, the more accurate the measurement of
surges, spikes and sags will be. The true average AVG
feature calculates all readings taken over time
continually.
Note: 1. Auto Power Off feature is disabled
automatically in this mode.
2. To retain the readings after measurements,
u s e function to stop updating the
measurements before disconnecting the test
leads. Use similar pushbutton procedures
described above to read throughout the locked
r e a d i n g s .
Crest (Instantaneous Peak Value) Mode
Perform measurements as described in Basic Operation
section. Press and hold the button for 1 second or
more to activate crest mode with LCD annunciators
MAX turned on. Press the button momentarily to read
throughout the Maximum (MAX), Minimum (MIN), and
Maximum minus Minimum (MAX-MIN) readings. Press
the button for 1 second or more to exit crest mode.
With the CREST mode, you can capture transient signal
crest voltage (instantaneous peak value) as short as
0.8ms. This function can be used to determine crest
factor which can indicate the presence of harmonics.
Crest factor is the ratio of crest value to the true rms
value. A pure sinusoidal waveform has a crest factor of
1.414.
Note: 1. Auto Power Off feature is disabled
automatically in this mode.
2. To retain the readings after measurements,
u s e function to stop updating the
measurements before disconnecting the test
leads. Use similar pushbutton procedures
described above to cycle through the locked
readings.
Sort™ Mode
Perform measurements as described in Basic Operation
To Next Page
Loading...
