Instrument Expert
Original factory packaging
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Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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User's Manual Technical Drawing
The SIL-411 has an SDI-12 digital output and 5 m high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. The sensor has a 22° half-angle field of view and a response time of 0.6 seconds. Typical applications include plant canopy temperature measurement for use in plant water status estimation, road surface temperature measurement of determination of icing conditions, and terrestrial surface (soil, vegetation, water, snow) temperature measurement in energy balance studies.
SIL-411 Drawing
| Input Voltage Requirement | 5.5 to 24 V DC |
| Current Draw | 1.5 mA (quiescent), 2.0 mA (active) |
| Calibration Uncertainty (0 to 50 C), when target and detector temperature are within 20 C | 0.5 C |
| Measurement Repeatability | Less than 0.05 C |
| Stability (Long-term Drift) | Less than 2 % change in slope per year when germanium filter is maintained in a clean condition |
| Response Time | 0.6 s, time for detector signal to reach 95 % following a step change; fastest data transmission rate for SDI-12 circuitry is 1 s |
| Field of View | 22° half angle |
| Spectral Range | 8 to 14 μm; atmospheric window |
| Operating Environment | -50 to 80 C; 0 to 100 % relative humidity (non-condensing) |
| Dimensions | 23 mm diameter, 60 mm length |
| Mass | 190 g (with 5m of lead wire) |
| Cable | 5 m of six conductor, shielded, twisted-pair wire; TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires |
| Warranty | 4 years against defects in materials and workmanship |
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