Specifications
Bridge Input
| Item |
iDAQ-871 |
iDAQ-873 |
| ADC Resolution |
24-bit |
| Channels |
4 |
8 |
| Input Range |
±1 V/V, ±500 mV/V, ±250 mV/V, ±125 mV/V,
±62.5 mV/V, ±31.25 mV/V, ±15.63 mV/V, or ±7.81 mV/V |
| Bridge Mode |
Full, half, quarter |
Quarter |
| Bridge Resistance |
120 Ù, 350 Ù, 1 kÙ |
120 Ù |
| Shunt Calibration |
100 kÙ |
| Excitation Voltage |
2.5V, 5V |
2V |
- Digital low-pass filter Filter type: FIR or SINC1, selected by sampling Refer
to user manual for detail information
-3 dB bandwidth: Configured along with sampling rate. Refer to user manual for detail information
- Isolation protection 600 VDC, Channel to FGND
- Accuracy (1) Operating temperature within ±5°C of last, system-calibration temperature (25°C)
|
Within System Calibration Temp. |
Over System Calibration Temp. |
| Items |
Gain |
Offset |
Gain |
Offset |
| Calibrated |
±0.05% |
±0.05% |
±0.20% |
±0.25% |
| Uncalibrated (2) |
±0.20% |
±0.20% |
±0.70% |
±0.35% |
- Shunt calibration Resistance: 100 kÙ
Resistance accuracy: ±0.1% max. Resistance drift: ±100 ppm/°C max.
- Over-voltage protection ±30 V
- Acquisition type Instant or buffered, software configurable
- Buffered acquisition Enabled channel combination: Each channel can be
enabled/disabled independently by software Sample clock rate: 25.6 kHz max., for all channels, simultaneous sampling, software configurable
Trigger
- Number of triggers 2 , selectable via software
- Trigger action Start, delay to start, stop, or delay to stop
- Trigger delay range 0 ~ 16,777,215 samples
- Sample number 0 ~ 16,777,215 samples
Analog Trigger
- Source One of the analog input channels, software configurable
- Input range Full scale of analog input range
- Resolution 24-bit
- Hysteresis 1/256 of analog input range, software configurable
- Accuracy ±0.01% of full-scale range
- Polarity Rising edge or falling edge, software configurable
- Minimum width 1/(sample rate)
Digital Trigger
- Source 2 external input sources, via iDAQ chassis/module
Physical
- Form factor iDAQ Module
- Dimension 100 x 80 x 25 mm (3.94 x 15 x 0.98 in.)
- Weight 175 g
- I/O connector 37-pin D-SUB
Environmental
- Operating temperature -40 ~ 70 °C (-40 ~158 °F)
- Storage temperature -40 °C to 85 °C (-40 °F to 185 °F)
- Operating humidity Up to 90% RH, non-condensing
- Vibration 5Grms, random vibration
- Shock 30G
- Certification EMC: CE, FCC
Ordering Information
- iDAQ-871 4-ch, 24-bit, 25.6kS/s, Full/Half/Quarter Bridge Input iDAQ module
- iDAQ-873 8-ch, 24-bit, 6kS/s, Quarter Bridge Input iDAQ module
Accessories
- ADAM-3937-AE DB-37 Wiring Terminal, DIN-rail Mount
- PCL-10137-1E DB-37 Shielded Cable, 1m
- PCL-10137-2E DB-37 Shielded Cable, 2m
- PCL-10137-3E DB-62 Shielded Cable, 3m
