Smart SDI-12/RS-485 Temperature Sensor DESCRIPTION
The Smart Temp is a high precision digital temperature sensor that meets USGS guidelines. It features the ability to automatically sample temperature and calculate minimum, maximum, and average temperatures on a flexible time scale.
This sensor is ideal for high-accuracy readings in water, soil, and air. It features fully-potted components, robust PVC Type II housing, and marine-grade stainless steel, making the sensor ideal for harsh environments. Model 51163 is small enough to easily deploy through standard 1 (2.5cm) PVC conduit with 8 (20.3cm) factory bend corners. It also offers a loop hole which can be used to mount weights or pull the sensor through pipes or other small areas.
SDI-12 output provides universal compatibility with any SDI-12-enabled data logger and low power applications, or use the standard SDI-12 command set over an RS-485 physical interface for applications that require long cable runs or many sensors.
Smart SDI-12/RS-485 Temperature Sensor FEATURES
Sensor | Silicon bandgap temperature sensor |
Output | SDI-12 v.1.4 and RS-485 |
Measurement Range: | -40°F to +140°F (-40°C to +60°C) |
Accuracy |
±0.18°F (±0.1° C) from 23°F to 122°F (-5°C to +50°C) ±0.2°C outside this range |
Resolution | 0.01°C |
Current Draw |
Idle: 10 µA (SDI-12), 0.6 mA (RS485) Sample: 6 mA for 10 ms Transmit/receive: 6 mA for ~ 100 ms (depends on length of data) Peak: 30 mA for 1 ms during initial power-on |
Units | Configurable: Celsius or Fahrenheit |
Dimensions |
4.95 (125.7 mm) L x 0.7 (17.8 mm) (#51126) 3.56 (90.4 mm) L x 0.70 (17.8 mm) (#51163) |
PART # | DESCRIPTION |
51126-025 | Smart Digital Temperature Sensor, metal tine, 25 cable |
51126-050 | Smart Digital Temperature Sensor, metal tine, 50 cable |
51126-100 | Smart Digital Temperature Sensor, metal tine, 100 cable |
51163-025 | Smart Digital Temperature Sensor, compact housing, 25 cable |
51163-050 | Smart Digital Temperature Sensor, compact housing, 50 cable |
51163-100 | Smart Digital Temperature Sensor, compact housing, 100 cable |
93924-002 | Cable for custom lengths in excess of 100, specify length needed when ordering |
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