Dewetron DAQP-ACC-A, Technical Reference Manual

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DAQP-ACC-A
High dynamic signal amplifier
Supported sensors: IEPE
®
sensors
Input sensitivity: ±5 V, ±1.66 V, ±500 mV, ±166 mV, ±50 mV
(Gain 1, 3, 10, 30 and 100),
push button or software selection
Bandwidth: 300 kHz
Sensor connection: BNC connector
Module specifications
IEPE
®
is a trademark of PCB Piezotronics, Inc.
DAQP-ACC-A
Ranges ±5 V, ±1.66 V, ±500 mV, ±166 mV, ±50 mV
Gain 1, 3, 10, 30, 100
Range / gain selection Push button or software
Gain error 0.5 %
Sensor types IEPE
®
sensors only
Sensor excitation 4 or 8 mA (software selection), 10 %, up to 28 V
DC
Input impedance 5 or 7 MOhm (depending on time constant), in parallel with 1.2 nF
Input voltage range
Voltage < 4 V
Voltage > 19 V
4 to 19 V
‚Shortcut‘ detection
‚No sensor‘ detection
Input protection
IN+
IN- (shield)
max. -10 to 28 V
max. 20 mA
Bandwidth (-3 dB) From selected highpass fi lter to 300 kHz (+2 to -5 dB @ fg)
Filters (highpass)
0.5 Hz fi lter
5 Hz fi lter
0.5 Hz and 5 Hz (software selection)
0.32 s time constant
0.032 s time constant
Filters (lowpass) 1 kHz, 10 kHz, 100 kHz, 300 kHz
other fi lter steps available as an option on request
Filter selection Push button or software
Filter characteristics
up to 100 kHz
300 kHz
Butterworth
100 dB / decade (30 dB / octave)
80 dB / decade (24 dB / octave)
Typical SFDR and SNR
5000 mV
500 mV
50 mV
300 kHz bandwidth 100 kHz bandwidth 10 kHz bandwidth
SFDR SNR SFDR SNR SFDR SNR
92 dB 90 dB 100 dB 91 dB 103 dB 93 dB
88 dB 85 dB 100 dB 89 dB 100 dB 92 dB
71 dB 68 dB 90 dB 73 dB 82 dB 80 dB
Output voltage
±5 V
Output resistance < 10 Ohm
Output current Max. 5 mA
Output protection Continuous short to ground
RS-485 interface Yes
Power supply voltage
±9 V
DC
(±10 %)
Power consumption Typical 0.8 to 1.0 W (depending on sensor)
450134 • DAQP/H SI /PAD Modules • Technical Reference Manual • Prin t ing version 2.3.4 • November 18, 2020