General

Sensor input channels

IEPE accelerometer, 1 channel

Resolution

24-bit resolution

Dynamic range

109.5 dB dynamic range

Anti-aliasing filter bandwidth

5th order low-pass Butterworth filter with programmable cutoff frequencies from 26 Hz to 33 KHz

Digital finite impulse response

(FIR) filter

100 dB in frequency band from 1/2 to 8 times the sample rate

IEPE Accelerometer Requirements

Excitation voltage

23 V dc

Excitation current

2.3 mA

Output voltage

± 5 V dc

Sampling

Sampling modes

Synchronized (periodic burst sampling only)

Sampling rates

Periodic burst sampling: 1 kHz to 104 kHz

Maximum burst periods

150 seconds @ 1 kHz; 3 seconds @ 50 kHz; 1.3 seconds @

104 kHz

Measurable signal bandwidth

1 Hz to 33 kHz

Sample rate stability

± 3 ppm

Network capacity

Up to 125 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 with 10 sec beacon interval (synchronized mode)

Operating Parameters

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.A.- limited to 10 dBm (10 mW)

RF communication protocol

IEEE 802.15.4

Range for bi-directional RF link

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

Power source

Internal: 3.7 V dc, 650 mAh rechargeable battery

External: 3.2 V dc to 9 V dc

Power consumption

1 burst /10 minutes: 2.9373 mA (10.57 mW), 1 burst/hr: 0.6957 mA (2.50 mW), 1 burst/4 hrs: 0.2875 mA (1.04 mW), 1 burst/24 hrs: 0.1738 mA (0.63 mW) (all sampling @ 10 kHz with 5 second burst duration). See battery life calculator: http://www.microstrain.com/iepe- link-lxrs-battery-life-calculator

Operating temperature

-20 ˚C to +60 ˚C (-40 ˚C to +85˚C available with external battery)

Physical Specifications

Dimensions

94 mm x 79 mm x 21 mm

Weight

114 grams

Enclosure material

Aluminum

Environmental rating

Indoor use

Integration

Compatible gateways

All WSDA^® base stations and gateways

Compatible sensors

IEPE type sensors that operate within the node input specifications and have an output within ± 5 V dc (custom options available)

Connectors

10-32 coaxial (IEPE input), terminal block (future use)

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