User manual

CS215 Temperature and Relative Humidity Probe
Response Time with
Filter:
<15s (63% response time in air moving at 1 m/s at
humidities <85% )
Environmental
Performance:
See Appendix A
Calibration Traceability: See Appendix B
Supply Voltage: 6-16V DC
Current Consumption: Typically 120µA quiescent, 1.7mA during
measurement (takes 0.7 sec)
Diameter: 12mm at sensor tip, maximum 18mm at cable end
Length: 180mm, including cable strain relief
Housing Material: Anodised aluminium
Filter Material: Sintered high density polyethylene, average pore size
10-13 µm
Standard Cable Length: 3 metres
EMC Compliance: Tested and conforms to IEC61326
3. Installation
The CS215 is normally housed inside a model 41303-5 Solar Radiation Shield
when used in the field.
To fit the CS215 in the Radiation Shield:
1. Loosen the plastic split collar at the base of the shield (reversing the
removable portion if necessary) and gently insert the probe.
2. Tighten the collar until it lightly grips the probe body.
3. Continue to push the probe up into the body of the shield until the step in the
tube stops it going any further.
4. Tighten the collar until it securely grips the probe.
5. Loop the cable up and fix it to the underside of the radiation shield arm or to
the mounting tower using a cable tie.
CAUTION: Failure to secure the cable can lead to breakage
of the wires due to fatigue if the cable is allowed to blow to
and fro in the wind.
The probe will also fit into the larger shields designed to take the HMP45C probe,
e.g. the URS1 or 41003 shields. The 41003 shield requires either the 18.5 or 12
mm adaptors (parts 41046 DS-18 and 41046 DS-12 respectively). For those
shields tighten the sensor grip around the probe where it best matches the size of
the grip. (The probe will also fit directly into most of the R M Young shields,
where the probe enters the shield from the top, pointing downwards.)
CAUTION: When removing the probe from the shield
withdraw it from shield carefully, as the foam filter is easily
broken if bent or knocked.
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