1 temperature measurement, 2 relative humidity measurement, Installation – Campbell Scientific CS215 Temperature and Relative Humidity Probe User Manual

Page 15: Temperature measurement, Relative humidity measurement

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CS215 Temperature and Relative Humidity Probe

Filter Material:

Sintered high-density polyethylene, average pore

size 13 µm

EMC Compliance:

Tested and conforms to BS EN61326:2002

Calibration:

Sensirion SHT75 sensor element is individually

calibrated during manufacture.

6.1 Temperature Measurement

Operating Range:

–40 to +70 °C

Accuracy:

±

0.3 °C at 25 °C

±

0.4 °C over 5 to 40 °C

±

0.9 °C over –40 to +70 °C

Response Time

with Filter:

120 s (63% response time in air moving at 1 m/s)

Default Units:

Degrees Celsius

6.2 Relative Humidity Measurement

Operating Range:

0 to 100% RH (–20 to +60 °C; see Appendix C,

Environmental Performance)

Accuracy at 25°C:

±

2% over 10 to 90%

±

4% over 0 to 100%

Short-Term Hysteresis: <1% RH

Temperature

Dependence:

Compensated to better than ±2% over –20 to 60 °C

Typical Long-Term

Stability:

Better than ±1.0% per year

Response Time

with Filter:

<10 s (63% response time in air moving at 1 m/s at

<85% RH)

Environmental

Performance:

See Appendix C, Environmental Performance

7. Installation

If you are programming your datalogger with Short Cut, skip Section 7.1,

Wiring to Datalogger, and Section 7.2, Datalogger Programming. Short Cut

does this work for you. See Section 4, Quickstart, for a Short Cut tutorial.

5

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