Environmental
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Sensor Accessories
Accessories for Terrestrial Sensors
2003S Mounting and Leveling Fixture
The 2003S is for use with all LI-COR terrestrial type sensors (2.38 cm Dia.). The base is anodized aluminum with stainless steel leveling screws and a weatherproof spirit level.
Size: 7.6 cm Dia. (3.0”).
Weight: 95 g (0.21 lbs).
2222SB Extension Cable
This cable is for use with LI-COR terrestrial type sensors. Standard length is 15.2 m (50 ft) or 30.4 m (100 ft). Custom lengths up to 304 m (1000 ft) may be ordered. Cable lengths up to 1000 feet can be used with LI-COR readout instruments. For mV applications, consult LI-COR.
Millivolt Adapters
Millivolt adapters are used for connecting sensors to other manufacturers' dataloggers or data acquisition systems; they are not intended for use with the LI-1400 or other LI-COR readout devices. There are two types of millivolt adapters available - a "matched" adapter that features a standardized 0-5 or 0-10 mV output (p/n 2319, 2320, and 2321), and a second "unmatched" type that has a fixed resistor to convert the sensors' output to millivolts (p/n 2290, 2220, and 2291). The standardized millivolt adapters allow factory adjustment of a potentiometer so that the output is the same between all sensors. This eliminates the need to enter unique calibration constants or multipliers when the sensors are swapped out in the field. The millivolt adapter in this case must match the sensor to which it is attached; the sensor and millivolt adapter combination are designated as "SL" (i.e., LI-190SL, LI-200SL, LI-210SL). The fixed resistor type millivolt adapters can be used with any compatible sensor to convert the sensors' output to millivolts; they require that a unique calibration constant or multiplier for each sensor be entered into the logging device to convert the output into the units of measurement.
2290 Millivolt Adapter
2290 Millivolt Adapter
For LI-190 Quantum Sensor, LI-191 Line Quantum Sensor, or LI-210 Photometric Sensor (604 Ohm resistance).
2220 Millivolt Adapter
For LI-200 Pyranometer Sensor (147 Ohm resistance).
2291 Millivolt Adapter
For LI-192 Underwater Quantum Sensor or LI-193 Spherical Quantum Sensor (1210 Ohm resistance).
Type SL Sensors
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Type SL Sensors are coupled with a unique milivolt adapter containing a variable resistor. Output is standardized to 10mV at full scale. Ultimate termination is bare leads. Designed for use with non-LI-COR devices that rquire q millivolt signal. |
| 2320 Millivolt Adapter and LI-200 Pyranometer (LI-200SL) | |
Type SZ Sensors
Type SZ sensors have the same specifications as the type SA sensors except that they are terminated with bare wires for connection to the terminal blocks for the LI-1400 DataLogger or other current measuring devices. These sensors can be converted to millivolt output by connecting a resistor across the leads and measuring the voltage across the resistor.
Accessories for Underwater Sensors
2222UWB Underwater Cable
This 2-wire shielded cable is used with underwater sensors and has a waterproof connector on the sensor end. The other end of the cable is fitted with a BNC connector for attaching the cable directly to the readout instrument for type “SA” sensors (also attaches to the calconnector of “SB” type sensors). Standard cable lengths are 3, 10, 30, 50, 75 and 100 meters. Custom lengths over 100 meters can also be ordered.
2009S Lowering Frame
The 2009S Lowering Frame provides for the placement of two underwater cosine sensors, one each for downwelling or upwelling radiation (shown below), or a single LI-193 Spherical Quantum Sensor. The 2009S provides stability for proper orientation of the sensor(s), minimizes shading effects, and features a lower mounting ring for stabilizing weight attachment if necessary.
Construction: Anodized aluminum.
Size: 51.4 L (20.3”) x 35.6 cm W (14.0”).
Weight: 327 g (0.72 lbs.).
Underwater Sensors
Require 2222UWB Underwater Cable. The 2009S Lowering Frame is an accessory.
100L Lubricant
Provides lubrication between the sensor and the underwater cable.
