TempVue 20 Pt100 Digital Air Temperature Sensor

Meets world meteorological organization recommendations

The TempVue™20 provides even greater flexibility to customers wanting the next generation of air-temperature measurements. This sensor meets all relevant World Meteorological Organization (WMO) temperature recommendations, but with a digital output that ensures maximum flexibility to meet all application needs. 

Designed with the customer in mind, the TempVue 20 easily interfaces with Campbell Scientific or third-party data loggers and fits a wide range of aspirated and passive temperature shields. The sensor comes with a short cable attached and terminates into an M12 connector, providing exceptional convenience, environmental protection, and data integrity for use in a variety of applications. 

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The TempVue 20 consists of a wire-wrapped, four-wire Pt100 Resistance Temperature Detector (RTD) element encapsulated in an epoxy-filled, stainless-steel housing. The thin yet robust housing, combined with the Pt100 sensing element, provide a truly WMO-compliant sensor to meet the 20-second step response time with an ambient wind speed of only 1 m/s (3.3 ft/s). The digital TempVue 20 also gives users much more measurement confidence than an analog sensor is able to provide, such as status information and the removal of any hassles regarding calibration inputs. 

 The TempVue 20 has a maximum measurement uncertainty of only 0.3 Kelvin over the entire measurement range of -60° to +60°C, with only 0.1 Kelvin over the most common temperature range of -40° to +40°C. 

Benefits and Features 

    • Status information, measurement averaging options, and calibration information onboard 
    • Meets all relevant temperature WMO recommendations 
    • High measurement stability over both time and temperature 
    • Incredibly easy to install or remove for calibration checks 
    • Durable and protected for even the harshest environmental conditions 
    • Calibration certificate included 
Sensor Description  Platinum Resistance Thermometer (Pt100) 
Measurement Uncertainty 
  • ±0.1 Kelvin over -40° to +40°C (-40° to +104°F) range 
  • ±0.3 Kelvin over -60° to +60°C (-76° to +140°F) range 
Temperature Measurement Range  -60° to +60°C (-76° to +140°F) 
Time Constant in Air  20 s for a wind speed of 1 m/s (3.3 ft/s) 
Resolution  Two decimal places (0.01°C) 
Connector Type  M12 (to extend beyond 1 m [3 ft] standard cable length) 
Probe Diameter  1.9 cm (0.75 in.) maximum 
Probe Length  12.1 cm (4.75 in.) tip to end of cable gland 
Extended Probe Length  18.1 cm (7.125 in.) tip to end of extender piece 
Total Length  97.16 cm (38.25 in.) tip to end of connector 
Weight  70 g (0.15 lb) for probe with extender piece, including standard 1 m (3 ft) cable with M12 connector 

 

Power 
Voltage Range  6 to 16 Vdc 
Current  150 µA 

 

TempVue 20-SDI-12 
SDI-12 Compatibility  Version 1.4 

Brochures: TempVue™20 Pt100 Digital Air Temperature Sensor

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Manuals: TempVue 20 SDI-12 Manual

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Manuals: TempVue 20 Let's Go Card

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