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|Four (4) single-ended analog input channels are available and feature voltage surge and lightning protection to help protect sensitive instruments in areas with storm activity. Supported measurement and sensor types include temperature, 0-5 Vdc, 4-20mA, and pulse inputs for tipping buckets - with programmable log - ging and reporting intervals. The DLight provides a 24 Vdc loop power supply with sufficient current to drive sensors.
The DLight provides several popular data bus I/O’s including; SDI-12, one (1) RS-232 port, and USB 2.0. Other digital features include a Secure Digital SD card interface that can store up to two gigabytes of sampled data.
The DLight supports connection to telemetry over the RS-232 port for reporting data over cellular, UHF/VHF, or satellite systems such as GOES.
|• Inputs: Analog, Pulse, SDI-12
• Outputs: V-out, Alarm, RS-232
• Simple configuration for telemetry applications:
• SD memory card slot
• Windows software for easy:
|• Stand-alone & real-time data acquisition and control
• Water resources:
• Meteorological & Agrimet
• Soil conditions
|Power Requirements||9.6 - 16 VDC, 7 mA standby current (telemetry system will require additional power)|
|Processor||16-bit TI MSP430, and two 16-bit dsPIC microprocessors|
|On-Board Data Storage||FLASH storage, 2 Gigabytes internal plus removable 2 Gigabyte SD memory card|
|Logging Interval||1 minute to 24 hours|
|Real-Time Clock||Accurate +/- 1 minute/month, leap year correction, temperature correction|
|Message Size||6 - 340 bytes typical|
|Analog to Digital (0-5 VDC)||
|Watchdog Timer||System resets upon microprocessor failure|
|Digital to Analog (0-5 Vdc) Output||12-bit resolution|
|Temperature and Humidity||
|Sensor Input Selections
4 Analog Channels - Single Ended
|One Switched Excitation Voltages:||24V/5W for 4-20mA sensor power|
|Physical Size (L x H x D)||Black anodized aluminum housing
5.53 in x 3.06 in x 1.95 in
(14.05 cm x 7.77 cm x 4.96 cm)