Sensor input channels

Differential analog, 4 channels

Integrated sensors

Triaxial MEMS accelerometer, 3 channels

Internal temperature, 1 channel

Data storage capacity

2 M bytes (up to 1,000,000 data points, data type dependent)

Measurement range

Differential: full-bridge, ≥ 350 Ω (factory configurable)

Accuracy and resolution

± 0.1% full scale typical, 16 bit resolution

Anti-aliasing filter bandwidth

Single-pole Butterworth

-3 dB cutoff @ 250 Hz

Bridge excitation voltage

+2.7 V dc, 50 mA total for all channels

(pulsed @ sample rates ≤ 16 Hz to conserve power)

Measurement gain and offset

User-selectable in software on differential channels gain values from 104 to 1800

Measurement range

± 16 g

Accuracy and resolution

± 4 mg, 13 bit resolution

Measurement range

-40 °C to 85 °C

Accuracy and resolution

± 2 °C (at 25 °C) typical, 16 bit resolution

Sampling modes

Synchronized, low duty cycle, datalogging

Sampling rates

Continuous sampling: 1 sample/hour to 512 Hz

Periodic burst sampling: 32 Hz to 4096 Hz

Datalogging: 32 Hz to 4096 Hz

Sample rate stability

± 3 ppm

Network capacity

Up to 2000 nodes per RF channel (and per gateway) depending on the number of active channels and sampling settings. Refer to the system bandwidth calculator: http://www.microstrain.com/configure-your-system

Synchronization between nodes

± 32 μsec

Radio frequency (RF)

transceiver carrier

2.405 to 2.470 GHz direct sequence spread spectrum over 14 channels, license free worldwide, radiated power programmable from 0 dBm (1 mW) to 16 dBm (39 mW); low power option available for use outside the U.S.- limited to 10dBm (10mW)

Range for bi-directional RF link

70 m to 2 km line of sight with RF power setting

RF communication protocol

IEEE 802.15.4

Power source

Replaceable 3.7 V dc, 1.7 Ah Tadiran TL-5935 1/6 D-cell battery

Power consumption

960 uA ( 3.46 mW) @ 3.6 V dc, 32 HZ, 3 ch, no duty cycling

10.6 mA (38.16 mW) @ 3.6 V dc, 256 Hz, 3 ch, no duty cycling

4.0 mA (14.4 mW) @ 3.6 V dc, 256 Hz, 1 ch, no duty cycling

Operating temperature

-40 ˚C to + 85 ˚C

Acceleration limit

500 g standard (high g option available)

Dimensions

101 mm x 46 mm x 26 mm

Weight

150 g (including battery)

EMI/EMC rating

MIL-STD-461F

Enclosure material

Clear polycarbonate

Compatible gateways

All WSDA® base stations and gateways

Compatible sensors>

Bridge type analog sensors

Connectors

Flex cable terminal/solder pads (flex cable included)

Shunt calibration

Internal shunt calibration resistor 499 KΩ, differential channels<

Software<

SensorCloud™, SensorConnect™, Node Commander®, Windows 7 (or newer)

Software development

Open-source MicroStrain Communications Library (MSCL) with sample code available in C++,Python,and.NET formats (OS and computing platform independent): http://lord-microstrain.github.io/MSCL/

Regulatory compliance

FCC (U.S.), IC (Canada), ROHS