Campbell Scientific HMP45C Temperature and RH Probe User Manual
Page 3

HMP45C Table of Contents
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1. General Description
.....................................................1
2. Specifications
..............................................................2
2.1 Temperature Sensor ..................................................................................2
2.2 Relative Humidity Sensor.........................................................................2
3. Installation
....................................................................3
3.1 Siting.........................................................................................................3
3.2 Assembly and Mounting...........................................................................3
4. Wiring
............................................................................5
5. Example Programs
......................................................6
6. Long Lead Lengths
......................................................9
7. Absolute Humidity
.....................................................12
8. Sensor Maintenance
..................................................15
9. Troubleshooting
........................................................16
10. References
...............................................................16
Appendix
A. Wiring for Older HMP45C Probes
.......................... A-1
Figures
3-1. HMP45C and 41003-5 Radiation Shield on a Tripod Mast ....................4
3-2. HMP45C and 41003-5 Radiation Shield on a CM200 Series Crossarm.4
A-1. HMP45C Probe to Datalogger Connections...................................... A-1
i