Dewetron DAQP-CHARGE-B Series, Техническое справочное руководство

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9
DAQP-CHARGE-B
Dynamic signal amplifier
Input protection: Isolated input (1 kV ESD)
Input sensitivity: 8 ranges from 100 pC to 1 000 000 pC
Dynamic: Up to 93 dB
Charge drift: < 0.03 pC/sec
Bandwidth, filter: 100 kHz, 9 selectable low pass filters
(10 Hz to 100 kHz)
Custom range: Completely free programmable sensitivity and offset
Module specifications
DAQP-CHARGE-B
Input ranges ±100, ±500, ±2 000, ±10 000, ±40 000, ±200 000, ±1 000 000 pC
Range selection Push button or software
Gain accuracy 0.5 % of range (1 % of range for 100 and 500 pC)
Gain linearity ±0.05 %
Bandwidth (-3 dB) 100 kHz (±1.5 dB @ f0)
Filters (lowpass) 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz (±2 dB @ f0)
Filter selection Push button or software
Filter characteristics Bessel or Butterworth (software programmable)
40 dB / decade (12 dB / octave)
Coupling AC or DC software selectable
Time constant / Highpass fi lter
100 pC to 2000 pC
2001 pC to 40000 pC
40001 pC to 200 kpC
AC coupled DC coupled @ 25°C; max. 60 % relative humidity
2 sec / 0.07 Hz >20000 sec
40 sec / 3.9 mHz >50000 sec
1000 sec / 0.16 mHz >70000 sec
Drift input current @ 25 °C < ±0.03 pC/s
Temperature range storage -30 °C to +85 °C (-22 °F to 185 °F)
Temperature range operating -5 °C to +60 °C (23 °F to 140 °F)
Relative humidity 0 to 60 % at 60 °C (140 °F), non-condensing
Off set drift 50 ppm of Range/°K
Amplifi er reset Push button or software
Off set after reset
±2 mV or ±1 pC (greater value is valid)
Typ. SNR @ max. bandwidth
Range 100 pC
Range > 2000 pC
76 dB (82 dB @ 30 kHz / 85 dB @ 10 kHz )
81 dB (89 dB @ 30 kHz / 93 dB @ 10 kHz )
Ouput noise
@ 100 kHz
@ 30 kHz
0.3 mV
RMS
+ 0.01 pC
RMS
0.12 mV
RMS
+ 0.008 pC
RMS
Cable noise < 10
-5
pC
RMS
/pF
CMR < 0.02 pC/V (diff erence between input and output ground)
Isolation 350 V
DC
Input overvoltage protection 1 kV ESD
Output voltage
±5 V
RS-485 interface
Yes
Power supply voltage
±9 V
DC
(±1 %)
Power consumption
1.5 W to 3.5 W (depending on signal range and frequency)
450134 • DAQP/H SI /PAD Modules • Technical Reference Manual • Prin t ing version 2.3.4 • November 18, 2020