The 2420 Light Sensor Amplifier converts the μA current from a light sensor into a voltage that can be measured by most data loggers and system controllers. The 2420 Amplifier provides 15 user-selectable gain settings to accommodate a variety of applications. Works with LI-COR 190R-BL and 200R-BL sensors to convert voltage to measurement used by most data loggers and system controllers.

Connects Li-Cor Light Sensors to HOBO RX Stations

Use the 2420-BL to amplify signals of Li-Cor Light sensors, 190R-BL and 200R-BL to levels suitable for connecting to the HOBO RX Stations via the RXW-ANA-922 HOBOnet Analogue Input Mote.

Important Information

The Amplifier is weather resistant with the lid properly attached, but if left outdoors and unattended for long periods of time, should be installed in an enclosure or sheltered location.

 

 

Power Requirements	+3.8 to +28 VDC (1 mA over full range)
Operating Temperature Range	–40 °C to 50 °C
Turn-on Time	120 ms
Amplifier Bandwidth	10 Hz (over all gain settings)
Amplifier Output	–2.5 to 5.0 V
Output Offset Voltage	–10 to 10 μV
Amplifier Gain Range	0.025 to 0.375 V μA-1
Amplifier Gain Accuracy	±0.1% typical (±0.15% max) of gain setting
Amplifier Output Noise	0.5 μV rms (0.375 V μA-1 Gain, 0.1 to 10 Hz Bandwidth)
Amplifier Output Loading	≥10 kΩ