Instruction manual
Table Of Contents
- Revision and Copyright Information
- Limited Warranty
- Assistance
- Precautions
- Table of Contents
- 1. Introduction
- 2. Cautionary Statements
- 3. Initial Inspection
- 4. Quickstart
- 5. Overview
- 6. Specifications
- 7. Installation
- 8. Sensor Maintenance
- 9. Troubleshooting
- 10. References
- Appendix A. Importing Short Cut Code
- Appendix B. Example Programs
- Appendix C. Interfacing with HMP155A RS-485 Output
- Campbell Scientific Companies

HMP155A Temperature and Relative Humidity Probe
Electromagnetic compatibility: Complies with EMC standard EN61326-1,
Electrical equipment for measurement
control and laboratory use - EMC
requirements for use in industrial locations
Dimensions in mm (inches)
FIGURE 6-1. Probe dimensions
8-Pin Connector
0507-044
FIGURE 6-2. Wiring of HMP155A 8-pin connector
*HMP155A
CBL1 Cable provided by Campbell Scientific
1
=
V
OUT
1 (yellow, temp)
2
=
no connection
3
=
A
GND
(white)
4
=
V
OUT
2 (blue, RH)
Ø12 [0.47
20 [0.79]
24 [0.94]
86 [3.39]
279
266 [10.47]
40 [1.57]
[10.98]
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