134
15 Specifications
134
Specifications
Chapter
15
15-1.Specifications
■Analog section
Sensor excitation voltage DC 10V or 2.5V ± 10 ％ (factory default value 2.5V)
Output current 30mA or less
Signal input range -3.0 to 3.0mV/V
Equivalent input calibration range
0.5 to 3.0mV/V
Equivalent input calibration error
0.1％/FS or less (at 0.5mV/V input)
Zero/gain adjustment Automatically adjusted by digital computation
Minimum input sensitivity 1μV/count (at excitation voltage 10V)
1/10000 is guaranteed for input of 1mV/V or more
Accuracy Non-linearity: 0.02％/FS ± 1 digit (at 3mV/V input)
Zero drift: 0.5μV/℃ RTI or less
Gain drift: 25ppm/℃ or less
A/D converter Sampling rate: 30, 300, 3000 times/sec. (setting selectable)
Resolution: 24 bit (binary)
Analog filter First-order low-pass filter
fc = 10, 30, 100, 300, 1k, 3k, 10k, 30kHz (setting selectable)
Moving average filter Filter 1:
Second-Order Low-Pass Bessel Filter
Cut-off frequency can be set at 1/300 or more, 1/10 or less than
the sampling rate.
(It is also possible to select no filter.)
Filter 2:
Moving average
Arbitrarily selectable from 1 to 999 times
Resolution 1/30000 (at 3.0mv/v input)
Monitor output Approx. 2V per load cell input 1mV/V
(load resistance 2kΩ or more)
Hold function Sample, peak (selectable from analog peak (response 1kHz) or
digital peak)
Sampling rate Digital low-pass filter
3000 times/sec. 10 to 300Hz
300 times/sec. 1.0 to 30.0Hz
30 times/sec. 0.1 to 3.00Hz
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