LI19 datalogger

LI19 is a high accuracy handheld read-out unit / datalogger
LI19 for mobile measurements and short term datalogging
Hand-held read-out unit / datalogger

LI19 is a high accuracy handheld read-out unit / datalogger. It is used to make mobile measurements, for short term datalogging (as a static logger), and as an accurate millivolt amplifier directly connected to a PC. LI19 can be used with a variety of sensors. LI19’s most common application is with heat flux- and  solar radiation sensors. LI19 battery life and memory allow continuous measurement for up to 50 days.

Would you like a personalised quote?

or contact us: info@hukseflux.com

Specifications

output on display
  • heat flux, solar radiation
Input
  • analogue voltage
Conversion
  • division by the sensor sensitivity
Display definition
  • 4 digits with sign
Display refreshment rate
  • 1 s⁻¹
Calibration uncertainty
  • 0.1 %
Temperature dependence
  • < 0.5 % + 3 x 10⁻⁶ V over rated range
Sample rate
  • 2 s⁻¹
Rated input range
  • 6.25 to 200 x 10⁻³ V (selectable)
A/D conversion
  • 16 bits
Stored measurement definition
  • minimum maximum and average over storage interval with conversion to W/m²
Storage capacity
  • 3518 measurements
Storage interval range
  • 2 to 65535 s (selectable)
Compatibility with Hukseflux sensor models
  • LP02, HFP01, SBG01, HF03
Battery type
  • 2 x AA
Internal power supply voltage
  • 3 VDC
Battery life
  • > 50 days (on fresh batteries)
Rated operating temperature range
  • -10 to +40 °C
System requirements for use with PC
  • Windows XP and higher
Connection to PC
  • USB 1.1 / 2.0 low speed
User interface on PC
  • LI19 software
IP protection class
  • IP40
Connection to sensor
  • 2 x (female chassis plug for 4 mm banana with screwed signal wire clamp)
Weight
  • 0.175 kg (net) 1.3 kg with carrying case
Dimensions LI19
  • (70 x 146 x 25) mm
Dimensions transport case
  • (400 x 300 x 120) mm

Description

LI19 is a high accuracy handheld read-out unit / datalogger

LI19 may be used with pyranometers and heat flux sensors

LI19 is typically used to display the measured solar radiation or heat flux. It measures a DC voltage. Once programmed with the sensitivity of the connected sensor, the display will show the actual value of the heat flux or solar radiation in W/m². LI19 is programmed through its PC user interface. We recommend downloading the latest software. LI19 is battery powered, using 2 x AA-type batteries. Fresh batteries allow more than 50 days of operation. The system is supplied in a practical transport case, for easy transport and protection during field measurement campaigns. LI19 is built for easy use with a large size LCD, displaying quantities in W/m², and a USB connection. LI19 may be used with pyranometers and heat flux sensors.

 

Suggested use

  • short-term field measurement of solar radiation or heat flux
  • amplification of heat flux sensor signals
  • education in solar energy
LI19 datalogger
LI19 is a high accuracy handheld read-out unit / datalogger
  • high accuracy handheld read-out unit / datalogger
  • easy transport and protection during field measurement campaigns
  • supplied in a practical transport case
  • Fresh batteries allow more than 50 days of operation
Would you like a personalised quote?

or contact us: info@hukseflux.com