WSN-3202 NI [National Instruments Corporation], WSN-3202 Datasheet - Page 6

• Manufacturer Part Number: WSN-3202
• Description: Wireless Sensor Network Programmable Analog Input Measurement Nodes
• Manufacturer: NI [National Instruments Corporation]

Wireless Sensor Network Programmable Analog Input Measurement Nodes
NI WSN-3202 Specifications
These specifications are typical for the range -40 to 70 °C unless otherwise
noted. Some specifications (such as sample interval and power consumption)
can be optimized by customizing node behavior with the LabVIEW Wireless
Sensor Network (WSN) Module Pioneer. See the LabVIEW WSN Benchmarking
document, found on NI Developer Zone, for more information.
»
the NI WSN-3202 User Guide and Specifications manual at
Analog Input Characteristics
Number of channels .............................. 4 single-ended channels
ADC resolution ...................................... 16 bits
DNL ...................................................... No missing codes guaranteed
INL ...................................................... Refer to the Absolute
Minimum sample interval
Input coupling........................................ DC
Nominal input ranges............................ ±10 V, ±5 V, ±2 V, ±0.5 V
Minimum over range ............................. 4%
Input impedance (at DC)
Input bias current .................................. 3 nA
Crosstalk (at 1 kHz)
Analog bandwidth ................................. 7 kHz
Overvoltage protection.......................... ±30 V (one channel only)
1
LabVIEW Wireless Sensor Network (WSN) Module Pioneer. See the LabVIEW WSN Benchmarking
document, found on NI Developer Zone, for more information.
AI Absolute Accuracy Tables and Formulas
The values in the following tables are based on calibrated scaling coefficients,
which are stored in the onboard EEPROM.
Table 6. Accuracy Summary
Minimum sample interval for WSN-3202 can be improved by customizing node behavior with the
1
within 45 °C of the last calibration and are valid for averaging 100 samples immediately following
calibration. Refer to the Absolute Accuracy Formulas for more information.
2
For complete WSN-3202 analog input node specifications, see
Absolute accuracy values at full scale on the analog input channels assume the device is operating
Sensitivity is the smallest voltage change that can be detected. It is a function of noise.
Nominal Range (V)
Powered on ....................................... >1 GΩ
Powered off/overload ....................... 10 kΩ
Adjacent channels ............................ >100 dB
Nonadjacent channels ...................... >100 dB
±0.5
±10
±5
±2
Absolute Accuracy
at Full Scale (mV)
1
.................... 1 second
27.61
16.61
7.72
1.95
1
Accuracy Formulas
Random Noise
S(μV
342
172
69
18
rms
)
ni.com/manuals
Sensitivity
68.5
27.5
137
7
2
(μV)
.
Table 7. Accuracy Details
Absolute Accuracy Formulas
Digital I/O
Static Characteristics
Number of channels .............................. 4 bidirectional, individually settable
Modes (configurable per channel) ........ Drive High Only, Drive Low Only,
Voltage range
Output current (sourcing or sinking)...... 1 A max on any one channel,
Power-on output state .......................... High impedance, tristate
DIO power supply voltage range........... 5 to 30 V
Digital input logic levels
Input current
Range (V)
Nominal
Input .................................................. 0 to 30 V
Output (sourcing) .............................. 5 to 30 V
Input high range................................ 1.65 to 30 V
Input low range................................. 0 to 0.45 V
0 V input............................................ -160 μA
5 V input............................................ 125 μA
30 V input.......................................... 220 μA
±0.5
±10
±5
±2
Gain Error
Reading)
Residual
(ppm of
102
137
182
160
BUY ONLINE at ni.com or C
(ppm/°C)
Tempco
Gain
31
41
48
50
Offset Error
Residual
Drive High and Low, and Tristate
1 A total for all four channels
(ppm of
Range)
164
240
420
300
ALL 800 813 36
Range/°C)
Tempco
(ppm of
Offset
22
22
22
24
INL Error
(ppm of
Range)
93 (U.S.)
100
100
100
100
6