Technical
Specifications
Copyright © Itech Electronics Co., Ltd.
44
Input
parameter
Description
mode
voltage
Line filter
select OFF, cutoff frequency of 500Hz
Frequency
filter
select OFF, cutoff frequency of 500Hz
Digital filter
select OFF, cutoff frequency of 5KHz and 10KHz (this item has not been set up
yet)
Range
range of each unit can be set separately
A/D
converter
Simultaneous conversion voltage an current inputs
Resolution:18-bit
Maximum conversion rate: 10μs
8.4 Voltage and Current Accuracy
Item
Specification
Requirements
temperature
23±5° C, hundity: 30 ~ 75%RH.
Input waveform
Sine wave crest factor:3, common-mode
voltage: 0V
Number of
displayed digits
5digits (6 digits when
including the decimal point)
Frequency filter
Turn on to measure voltage or current
of 200Hz
30 minutes after warm-up time has passed
After zero-level compensation or measurement range
is changed
Accuracy
(The following accuracy is
the sum of the reading error
and the range error)
* f is the frequency of input
signal in the reading error
formula, the unit is kHz.
DC
±(0.1% of 0.2% of range)
0.5Hz
≤f<45Hz
±(0.1% of 0.2% of range)
45Hz
≤f≤ 66Hz
±(0.1% of 0.2% of range)
66Hz<f
≤ 1kHz
±(0.1% of 0.2% of range)
1kHz<f
≤10kHz
±(0.07*f)% of 0.3% of range)
10kHz<f
≤100kHz
±(0.5% of 0.5% of
range)±[{0.04×(f-10)}%
of reading]
8.5 Active Power Accuracy
Item
Specification
Requirements
same as the conditions for voltage and current. Power factor:1
Accuracy(The following
accuracy is the sum of the
reading error and the
range error)
* f is the frequency of input
signal in the reading error
formula, the unit is kHz.
DC
±(0.1% of 0.2% of range)
0.5Hz
≤ f<45Hz
±(0.3% of 0.2% of range)
45Hz
≤f ≤ 66Hz
±(0.1% of 0.1% of range)
66Hz<f
≤ 1kHz
±(0.2% of 0.2% of range)
1kHz<f
≤10kHz
±(0.1% of 0.3% of
