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7. Specifications
7-5. Input/output amplifier modules
AR-LXPA1000 analog input amplifier
Input signal type . . . . . . . . . . . . . . . . . . . . . . . . . . DC, AC, IEPE
Number of input channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Input connector . . . . . . . . . . . . . . . . . . . . . BNC (Z=50Ω type)
Input format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unbalanced
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 MΩ
Input range . . . . . . . . . . . . . . . . . ±0.1/0.2/0.5/1/2/5/10/50 V
HPF . . . . . . . . . . . OFF, 5 Hz (−18dB/oct Butterworth filter)
Weighting . . . . . . . . . . . . FLAT, A, C (IEC TYPE 1 compliant)
Absolute maximum input voltage . . . . . . . . . . . . . . . ± 50 V
(0.1/0.2/0.5/1/2/5/10V input ranges)
± 100 V (50V input range)
Input level LEDs
Lights green when input level exceeds 10% of its input
range
Lights red when it exceeds 115%
Input signal quantization bit depth . . . . . . . . . . . 16/24-bit
Extended range . . . . . . . . . . . . . . . . ±127% (of rated range)
Analog-digital conversion method
ΔΣ conversion method
(with simultaneous sampling and anti-aliasing filter)
Input frequency flatness characteristics (In AC mode,
1 Hz or higher)
10 V or less input range: ±0.5 dB
50V input range, 20kHz bandwidth or lower: ±1 dB
50V input range, 40kHz bandwidth: ±2 dB
Input range precision . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2%
Phase difference between input channels (identical input
range)
10V or lower input range, 20kHz bandwidth or lower:
1° or less
10V or lower input range, 40kHz bandwidth: 3° or less
50V input range: 3° or less
Dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . 125 dB or more
(24-bit, 5V input range, 51.2kHz sampling frequency,
input short, 3200-line FFT noise peak level)
Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −98 dB or lower
(1 kHz, 24-bit, 1V input range)
Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1% or less (1 kHz)
IEPE sensor power supply . . . . . . . . . . . . . . . . DC 24 V/4 mA
IEPE sensor disconnection detection
Detection function included for each channel
(Yellow LED blinks when disconnected)
TEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supports TEDS Ver. 1.0.
AR-LXST1000 strain input amplifier
Input signal type . . . . . . . . . . . . . . . . . . . . . . . . . . . . Strain/DC
Number of input channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Input format . . . . . . . . . . . . . . . . . . .unbalanced, DC coupled
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 MΩ
Absolute maximum input voltage . . . . . . . . . . . . . . . ±25 V
Input level LEDs
Lights green when input level exceeds 10% of its
input range
Lights red when it exceeds 115%
Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.1%
Extended range . . . . . . . . . . . . . . . . ±127% (of rated range)
Input signal quantization bit depth . . . . . . . . . . . 16/24-bit
Analog-digital conversion method . ΔΣ conversion method
(with simultaneous sampling and anti-aliasing filter)
LPF . . . . . . . . . −48dB/oct Butterworth response, switched
capacitor type, 4-channel independent,
10Hz/30Hz/100Hz/300Hz/1kHz/3kHz/10kHz/30kHz/
Pass cutoff frequencies
Input connector . . . . . . . . . 7-pin Lemo, Ø10 (EGG0B type)
Pin assignments
Bridge v
Signal input −
Signal input +
Remote sense +
Remote sense −
Bridge voltage −
GND
Strain mode
Input range
1
. . . ±500/1000/2000/5000/10000/20000/
50000/100000 μst
Input range precision
2, 3
. . . . . . . . . . . . . . . . . . . . . . . . . ±1%
Input frequency flatness characteristics
Input range 20000 μst or higher . . . . . . . . . . . ±0.5 dB
Input range 10000 μst or lower
20kHz bandwidth or lower . . . . . . . . . +0.5 to -1 dB
40kHz bandwidth . . . . . . . . . . . . . . . . . . +0.5 to -2 dB
Gauge ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0
Bridge voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2/10 V
(DC bridge format)
Bridge connection . . . . . . . . . . . . . . . . . . . . . . . . Full bridge
Applicable gauge resistance
2V bridge voltage . . . . . . . . . . . . . . . . . . . . 120–1000 Ω
10V bridge voltage . . . . . . . . . . . . . . . . . . . 350–1000 Ω
Remote sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Included
Balance adjustment method
Electronic automatic balancing
Balance adjustment range . . . . . . . . . . . . . . . ±10000 μst
(when 2V bridge voltage)
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