Specifications
OWNER’S GUIDE CONDITIONERS, DAQ | 13341
DAQP-CFB Carrier Frequency/LVDT module
Ideal for these kinds of sensors: full bridge; half bridge; quarter bridge 120 Ω;
quarter bridge 350 Ω inductive full bridge;
inductive half bridge (such as most LVTD Sensors)
Special features: Automatic balancing up to 400% of range
Internal completion for 1⁄2 and 1⁄4 bridge
Two internal shunts for completion
Input ranges: 0.1 mV/V to 1000 mV/V
Bandwidth: 2.3 kHz
Isolation: N/A
Signal connection: 9-pin SUB-D
DAQP-CFB specications
Parameter DAQP-CFB
Input ranges: 0.1 mV/V to 1000 mV/V
Inductive input ranges: 5 mV/V to 1000 mV/V (inductive range is limited from 20 mVRMS to 1000 mVRMS input voltage)
Input voltage ranges: 0.2 mVRMS to 1000 mVRMS
Bridge resistance: 60 - 1,000 Ω depending on excitation voltage
Excitation voltage level: 1, 2, 5 VRMS
Excitation voltage frequency: 5 kHz sine wave ±20 Hz
Maximum excitation current: 30 mARMS short circuit protected
Excitation voltage synchronization: Internal or external
Excitation voltage accuracy: 5 VRMS ±5 mVRMS; 2 VRMS ±2.5 mVRMS; 1 VRMS ±2.5 mVRMS
Excitation voltage drift: typically 50 ppm/°K
Excitation frequency drift: typically 20 ppm/°K
Nonlinearity: ±0.02 % FS
Accuracy: ±0.2 % of reading ±0.1 % of range
Offset drift: ±0.003 μV/V/K ±40 ppm of Range/°K
Gain drift: within ±30 ppm/°K
Balance adjusting range: ±400 % of Range (±200 % at 1 V excitation)
Capacitive imbalance compensation: Approx. 1000 pF
Phase adjustment range: ±40° (inductive mode only)
Balance adjusment accuracy: within ±0.1 % FS
Supported sensors:
full bridge; half bridge; quarter bridge 120 Ω; quarter bridge 350 Ω
inductive full bridge; inductive half bridge (typically LVTD Sensors)
Shunt calibration: internal 50 kΩ and 100 kΩ Shunt
Completion and shunt resistor accuracy: ±0.05 %
-3 dB Bandwidth: DC - 2.3 kHz
Filters (lowpass): 10, 30, 100, 300, 1 kHz
Filter characteristics: 2nd order Bessel, 2nd order Butterworth (40 dB/ decade)
Typ. SNR @ 1000 Hz [100 Hz]
and 2 VRMS excitation:
78 dB [85 dB] @ 1 mV/V
80 dB [87 dB] @ 100 mV/V