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| INSTRUCTIONS FOR USE
OM 402PWR
2.
INSTRUMENT DESCRIPTION
2.1
DESCRIPTION
The OM 402PWR model is a universal 4-digit panel wattmeter with independent measuring of AC voltage/current, frequency,
power factor and other quantities.
The instrument is based on an 8-bit microcontroller and precise RMS converter, which secures high accuracy, stability and easy
operation of the instrument
PROGRAMMABLE PROJECTION
Measured quantities
voltage (V
RMS
)
current
(A
RMS
)
active power (P)
frequency
(Hz)
with calculation
idle power (Q)
apparent power (S)
power factor (cos fi)
Measuring range:
adjustable as fixed or with automatic change
Setting:
manual, it is possible to set arbitrary projection on the display for maximum value of the input signal
in the menu, e.g. input 0...250 V/0...5 A > 0...1.500 kW
Projection: -9999…9999
LINEARIZATION
Linearization
by linear interpolation in 45 points/channel (solely via OM Link)
DIGITAL FILTERS
Floating average
from 2…30 measurements
Exponen.average
from 2…100 measurements
Rounding
setting the projection step for display
MATEMATICKÉ FUNKCE
Min/max. value
registration of min./max. value reached during measurement
Tare
designed to reset display upon non-zero input signal
Peak value
the display shows only max. or min. value
Mat. operations
polynome, 1/x, logarithm, exponential, power, root, sin x
EXTERNAL CONTROL
Lock
control keys blocking
Hold
display/instrument blocking
Tare
tare activation/resetting tare to zero
Resetting MM
resetting min/max value
* only for types DC, PM, DU
Содержание OM 402PWR
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