WSN-3202 NI [National Instruments Corporation], WSN-3202 Datasheet - Page 8

• 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-3212 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-3212 User Guide and Specifications manual at
Analog Input Characteristics
Number of channels .............................. Thermocouple input channels
ADC resolution ...................................... 24 bits
Type of ADC ........................................... delta-sigma
Voltage measurement range ................. ±73 mV
Common-mode range
Common-mode rejection ratio (0 to 60 Hz)
Temperature measurement ranges
Minimum sample interval
Input bandwidth (-3 dB)......................... 1 Hz
Noise rejection ...................................... 65 dB min at 50/60 Hz
Overvoltage protection.......................... ±30 V between any input and common
Differential input impedance ................ 20 MΩ
Input current .......................................... 50 nA
Input noise............................................. 0.5 μV
Gain error .............................................. 0.02% max at 25 °C,
Offset error (with autozero)................... 11 μV typ, 12.5 μV max
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LabVIEW Wireless Sensor Network (WSN) Module Pioneer. See the LabVIEW WSN Benchmarking
document, found on NI Developer Zone, for more information.
Digital I/O
Static Characteristics
Number of channels .............................. 4 bidirectional, individually settable
Modes (configurable per channel) ........ Drive High Only, Drive Low Only,
Voltage range
Minimum sample interval for WSN-3212 can be improved by customizing node behavior with the
For complete WSN-3212 thermocouple input node specifications, see
Channel-to-common ......................... ±700 mV
Channel-to-common ......................... 95 dB
Thermocouple types J, K,
Thermocouple type E ........................ -270 to 950 °C
Input .................................................. 0 to 30 V
Output (sourcing) .............................. 5 to 30 V
R, S, T, N, and B ........................... Works over temperature ranges
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.................... 2 seconds
defined by NIST
0.03% typ at -40 to 70 °C,
0.1% max at -40 to 70 °C
Drive High and Low, and Tristate
rms
ni.com/manuals
.
Output current (sourcing or sinking)...... 500 mA 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
DIO output voltage drop
DIO overcurrent fuse
Dynamic Characteristics
Output delay time
Power Requirements
Caution: Use the WSN-3212 with a 24 VDC, UL-listed, limited power source
(LPS) supply. The power supply bears the UL-listed mark, LPS. It must also meet
any safety and compliance requirements for the country of use. Do not use
rechargeable batteries.
The following power requirements specifications are typical at 25 °C.
Battery Power
Internal battery
Power consumption
Battery life
External Power
Voltage range ........................................ 9 to 30 V
Power input mating connector .............. 2-position MINI-COMBICON,
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
Sourcing ............................................ 0.5 V at 0.1 A; 0.763 V at 0.5 A
Sinking .............................................. 0.057 V at 0.1 A; 0.286 V at 0.5 A
Maximum voltage ............................. 30 V
Hold current ...................................... 1.1 A at 25 °C
Trip time ............................................ 2.5 s at 5 A at 25 °C
Sinking, 10 kΩ pull up ....................... 15 μs
Sourcing, 10 kΩ pull down ............... 3.5 ms
Type ................................................... 4 AA, alkaline only
Voltage range ................................... 3.6 to 7.5 V
60-second sample interval ............... 0.4 mW at 6 V
2-second sample interval ................. 7.4 mW at 6 V
60-second sample interval ............... Up to 3 years
2-second sample interval ................. Up to 2 months
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500 mA total for all four channels
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