CS215-PWS
CS215-PWS
RetiredTemperature and Relative Humidity Probe for PWS100
Pricing
- Model:
- CS215-PWS
- Item Number:
- 22250
- Warranty:
- 1 year
Overview
The CS215-PWS is a temperature and relative humidity probe with a special connector on the cable for attaching to a PWS100. It uses a Swiss-made digital humidity and temperature element that makes accurate and stable measurements. The CS215-PWS outputs an SDI-12 signal measurable by most Campbell Scientific data loggers.
Key Advantages
Specially cabled for PWS100
Technical Description
For this version of the CS215 Temperature and RH Probe, the cable has, instead of pigtails, a connector for attachment to the PWS100.
The CS215 uses the Sensirion SHT75, a combined relative humidity and temperature element, to provide accurate, stable measurements. The Sensirion SHT75 element is field-replaceable, eliminating the downtime typically required for the recalibration process. The CS215 outputs an SDI-12 signal that's measurable by many Campbell Scientific data loggers.
The CS215 should be housed in a solar radiation shield—typically the 41303-5A. The 41303-5A 6-plate naturally aspirated shield attaches to a mast, crossarm, or tower leg.
Benefits
- Accurate and stable measurements
- Field changeable element allows on-site recalibration
- Each sensor element is individually calibrated so no further adjustment of the probe is required
- Low power consumption
- Digital SDI-12 output
- Simple data logger programming
Specifications
- Sensing Element
- Sensirion SHT75
- Communication Standard
- SDI-12 V1.3
(responds to a subset of commands)
- Supply Voltage
- 6 to 16 Vdc
(typically powered by data logger’s 12 V supply)
- Typical Current Drain
- 120 μA
(quiescent)
- Typical Current Drain
- 1.7 mA
(measurement takes 0.7 s)
- EMC Compliance
- Tested and conforms to IEC61326:2002.
- Operating Temperature Range
- -40° to +70°C
- Diameter
- 1.2 cm
(0.5 in.) at sensor tip
- Diameter
- 1.8 cm
(0.7 in.) at cable end
- Probe Length
- 18.0 cm
(7.1 in.) including strain relief
- Cable Length
- 10 m
(33 ft)
- Weight
- 350 g
(12.3 oz) with 10-m (33-ft) cable
Relative Humidity
- Measurement Range
- 0 to 100% RH
(-20° to +60°C)
- Output Resolution
- 0.03% RH
- Accuracy
- ±2%
(10% to 90% range) at 25°C
- Accuracy
- ±4%
(0% to 100% range) at 25°C
- Short-Term Hysteresis
- < 1% RH
- Temperature Dependence
- Better than ±2%
(-20° to +60°C)
- Typical Stability
- ±1.0% per year
- Response Time with Filter
- < 20 s
(63% response time in still air)
- Calibration Traceability
- NIST and NPL standards
Temperature
- Measurement Range
- -40° to +70°C
- Output Resolution
- 0.01°C
- Accuracy
- ±0.3°C
(at 25°C)
- Accuracy
- ±0.4°C
(5° to 40°C)
- Accuracy
- ±0.9°C
(-40° to +70°C)
- Response Time with Filter
- < 120 s
(63% response time in air moving at 1 m s-1)
