LI19 Handheld Unit / Datalogger
The LI19 may be used with pyranometers and heat flux sensors, typically 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
- heat flux, solar radiation
- analogue voltage
- division by the sensor sensitivity
- 4 digits with sign
- 1 s⁻¹
- 0.1 %
- < 0.5 % + 3 x 10⁻⁶ V over rated range
- 2 s⁻¹
- 6.25 to 200 x 10⁻³ V (selectable)
- 16 bits
- minimum maximum and average over storage interval with conversion to W/m²
- 3518 measurements
- 2 to 65535 s (selectable)
- SR05-A1, HFP01, SBG01, HF03
- 2 x AA
- 3 VDC
- > 50 days (on fresh batteries)
- -10 to +40 °C
- Windows XP and higher
- USB 1.1 / 2.0 low speed
- LI19 software
- IP40
- 2 x (female chassis plug for 4 mm banana with screwed signal wire clamp)
- 0.175 kg (net) 1.3 kg with carrying case
- (70 x 146 x 25) mm
- (400 x 300 x 120) mm
