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| | Specifications | |
| | Input channels | up to 8 input channels: 4 full differential, 350 0 resistance or higher (with optional bridge completion), 3 single ended inputs (0-3 volts maximum), and internal temperature sensor | |
| | Temperature sensor (channel 8) | -25 ° C to 70 °C range, accuracy ± 4 ° C | |
| | Measurement Accuracy | ± 0.1% typical | |
| | Resolution | ± 1 bit (0.024%) | |
| | DC bridge excitation | +3 volts DC at 50 mA maximum (pulsed to sensors for sample rates of 100 Hz and below to conserve power) | |
| | Programmable gain | software programmable for differential input channels from 208 to 4845 (can be reduced with hardware resistor change) | |
| | Programmable offset | software programmable , maximum allowable input offset is ±1.5 volts | |
| | Analog to digital (A/D) converter | successive approximation type, 12 bit resolution | |
| | Data storage capacity | 2 megabytes (approximately 1,000,000 data points) | |
| | Data logging mode | log up to 1,000,000 data points (from 100 to 65,500 samples or continuous) at 32 Hz to 2048 Hz | |
| | Sensor event driven trigger | commence datalogging when threshold exceeded | |
| | Real-time streaming mode | transmit real time data from node to PC - rate depends on number of active channels: 1 channel - 4 KHz, 2 channels - 2 KHz, 3 channels - 1.33 KHz, 4 channels - 1 KHz, 5 channels - 800 Hz, 6 channels - 666 Hz, 7 channels - 570 Hz, 8 channels - 500 Hz | |
| | Low duty-cycle mode | supports multiple nodes on single RF channel, total update bandwidth of 500 Hz divided by number of nodes | |
| | Synchronization between nodes | datalogging 100 usec ±50 ppm, LDC mode time stamped at PC | |
| | Sample rate stability | datalogging and LDC mode (2Hz to 500 Hz) ±25 ppm (90 msec/hour) LDC mode (1 Hz to 2 samples /hour) ±10% | |
| | Wireless shunt calibration | channels 1 to 4. Internal shunt calibration resistor 499 KQ | |
| | Radio frequency (RF) transceiver carrier | 2.4 GHz direct sequence spread spectrum, license free worldwide (2.450 to 2.490 GHz) - 16 channels | |
| | RF data packet standard | IEEE 802.15.4, open communication architecture | |
| | RF programming & downloading | 8 minutes to download full memory | |
| | Range for bi-directional RF link | 70 m line-of-sight, up to 300 m with optional high gain antenna | |
| | Internal Li-Ion battery | 3.7 volt lithium ion rechargeable battery, 600 mAh capacity. Customer may supply external power from 3.2 to 9 volts | |
| | Power consumption | V-Link node only: real-time streaming - 25 mA, datalogging - 25 mA, sleeping - 0.5 mA External sensors: 350 Q strain gauge - 8 mA, 1000 Q strain gauge - 3 mA (add sensor consumption to above to calculate total power consumption) | |
| | Operating temperature | -20 to +60'C with standard internal battery and enclosure, extended temperature range optional with custom battery and enclosure. -40 to +85'C for electronics only | |
| | Dimensions | 88 mm x 72 mm x 26 mm including mounting tabs and screw terminal block input connector (board only 72 mm x 65 mm x 24 mm) For dimensioned print go to www.microstrain.com | |
| | Weight | 97 grams | |
| | Case | ABS plastic | |
| | Software | Agile-Link™ Windows XP compatible | |
| | PC Comm | serial port, 115.2 kBaud | |
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