• Data Logger
LS93750100

Data Logger

  • Inputs: Analog, Pulse, SDI-12 (up to 12 SDI-12 sensors)
  • Outputs: V-out, Alarm, RS-232
  • Simple telemetry configuration

Flexible and versatile data logger

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 (up to 12 SDI-12 sensors)
  • Outputs: V-out, Alarm, RS-232
  • Simple telemetry configuration
  • High-speed USB 2.0 port
  • SD memory card slot
  • Multi-lingual Windows software for easy configuration and diagnostics, tabular analysis and data export
  • User-controllable channel and parameter names



KEY FEATURES
Processor 16-bit TI MSP430, and two 16-bit dsPIC microprocessors
On-board data storage 2 GB internal FLASH storage, plus removable 2 GB on SD memory card
Non-volatile memory All setup parameters and clock, lithium battery backup
Real-time clock Accurate to ±1 minute/month, leap year correction
Watchdog timer System resets upon microprocessor failure
Digital to analog (0-5 VDC) output 12-bit resolution
Serial ports
  • One (1) RS-232 (Tx only), minimum ±5 VDC levels, 1200 to 115K baud
  • One (1) USB 2.0 (fully compatible with USB 1.0 devices)
Power requirements 9.6 to 16 VDC, 7 mA standby current (telemetry system will require additional power)
Logging interval 1 minute to 24 hours
Message size 6 - 340 bytes typical
SENSOR INPUT
Sensor input selections 4 analog channels, single-ended
Input type: 2 wire, 4 - 20 mA current loop, or 0 - 5 V with accessable DIP switch
Sensor power: 24 VDC (under firmware control), 12 VDC and 5 VDC (fixed)
Accuracy & resolution 0.01% accuracy, 0.002% resolution
Analog to digital (0-5 VDC) 21-bit resolution
Input impedance: 10 K ohm (min)
Pulse counter Input type: pulse
Sensor power: 5 or 12 VDC continuous
Maximum rate: 60 pulses per minute
Serial Input type: SDI-12 (up to 12 sensors)
Sensor power: 12 VDC continuous
Switched excitation voltage 24V/5W for 4-20mA sensor power
ENVIRONMENTAL
Temperature and humidity Operating: -40°F to 158°F (-40°C to 70°C)
Optional NEMA 4 enclosure: 100% condensing
Aluminum enclosure: 95% non-condensing
Physical size 5.53" x 3.06" x 1.95" (14.05 cm x 7.77 cm x 4.96 cm)