On-Board Accelerometers

Triaxial MEMS accelerometers, Analog Devices' ADXL2XXJE

Acceleration Range

+/- 2 G's or +/- 10 G's

Shock Limits

500 G's

Data Acquisition Modes

Mode 1: autotrigger, user specified as a programmable output voltage from a specific channel
Mode 2: on command from RS-232 or RF link
Mode 3: transmit continually for pre-programmed time period

DAS Software

Windows 95/98/2000/XP, PC compatible

Analog to Digital (A/D) Converter

Successive approximation type, 12 bits resolution

Data Storage Capacity

2 megabytes (approximately 1 million data points), 8 megabytes optional

Datalogging Sample Rate

Programmable, from 32 to 2048 sweeps/second (one sweep represents one sample from all active channels)

Continuous Transmission Sample Rate

1000 sweeps of all three channels per second

Data Sample Duration

Programmable from 1 to 65,535 data sweeps; for 2048 sweeps per second, sample duration is 32 seconds

G-Link Node Input Power

3.6 volt lithium ion AA size internal battery recommended, 2400 milliamp-hour capacity standard; or customer may supply external power from 3.1 to 9 volts

G-Link Battery Lifespan

273 hours (estimated, using 80% @ 6 milliamps current draw and sensor RF receive link active, 20% @ 20 milliamps w/ sensor RF transmit link active)

Radio Frequency (RF)Transceiver Carrier

916 MHz, narrowband, FCC compliant, license free use in USA

Range for Base Station RF Trigger

100 feet (30 meters) typical, line of sight

Range for Bi-Directional RF Link

100 feet typical, line of sight

RF Programming and Downloading

19200 baud, wireless RF, pulse code modulated, ASK

RS-232 Programming and Downloading

38400 baud direct serial RS-232 cable w/ miniature connector

G-Link Sensor Transceiver PCB Size

25 mm by 25 mm by 5 mm

Base Station Enclosure Size

110 mm by 75mm by 25 mm

Operating Temperature

-40 to +85 degrees Celsius