Campbell-scientific HMP155A Temperature and Relative Humidity Probe Manuel d'utilisateur

INSTRUCTION MANUAL HMP155A Temperature and Relative Humidity Probe Revision: 5/14 Copyright © 1990- 2014 Campbell Scientif

HMP155ATemperature and Relative Humidity Probe 3.1 Ships With The HMP155A ships with: (1) Adjustment Screwdriver from manufacturer (1) Calibration Sh

HMP155A Temperature and Relative Humidity Probe 2. Squeeze the sides of the white connector cover and insert the cable’s connector through it (see FI

HMP155ATemperature and Relative Humidity Probe FIGURE 4-5. HMP155A and 14-plate radiation shield on a tripod mast FIGURE 4-6. HMP155A and 14-plate

HMP155A Temperature and Relative Humidity Probe 4.2 Use SCWin to Program Datalogger and Generate Wiring Diagram Short Cut is an easy way to program

HMP155ATemperature and Relative Humidity Probe 4. Select Datalogger Model and Scan Interval (default of 5 seconds is OK for most applications). Clic

HMP155A Temperature and Relative Humidity Probe 6. After selecting the sensor, click at the left of the screen on Wiring Diagram to see how the senso

HMP155ATemperature and Relative Humidity Probe current at 12 volts. Approximately 2 seconds is required for the sensor to warm up after power is swit

HMP155A Temperature and Relative Humidity Probe control and laboratory use - EMC requirements for use in industrial locations Dimensions in mm (inches

HMP155ATemperature and Relative Humidity Probe *HMP155ACBL1 Cable provided by Campbell Scientific 6 = no connection 7 = VCC (red) 8 = GND (black) - =

HMP155A Temperature and Relative Humidity Probe 6.2 Relative Humidity Sensor Measurement range: 0 to 100% RH Accuracy (including non-linearity, hyst

HMP155ATemperature and Relative Humidity Probe When measuring the HMP155A with single-ended measurements, the white and black leads must both be conne

HMP155A Temperature and Relative Humidity Probe TABLE 7-2. Connections for Differential Measurements Color Wire Label or Description CR10

HMP155ATemperature and Relative Humidity Probe datalogger control between measurements. For lead lengths greater than 6.1 m (20 ft.) or when the prob

HMP155A Temperature and Relative Humidity Probe Ω/1000 feet, or 13.9 Ω/1000 feet. Using Ohm’s law, the voltage drop (Vd), along the signal reference/

HMP155ATemperature and Relative Humidity Probe 8. Sensor Maintenance The HMP155A Probe requires minimal maintenance. Check monthly to make sure the

HMP155A Temperature and Relative Humidity Probe saturated NaCl solution is 75%. A buildup of salt on the filter or chip will delay or destroy the res

HMP155ATemperature and Relative Humidity Probe 10. References AASC, 1985: The State Climatologist (1985) Publication of the American Association of S

Appendix A. Importing Short Cut Code This tutorial shows: • How to import a Short Cut program into a program editor for additional refinement. • H

Appendix A. Importing Short Cut Code 5. The program can now be edited, saved, and sent to the datalogger. 6. Import wiring information to the progr

Appendix B. Example Programs B.1 Single-Ended Voltage Measurement Examples These examples use the single-ended voltage instruction to measure the s

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Appendix B. Example Programs B.1.2. Edlog Single-Ended Measurement Program Below is an example CR10X program. Information about using it with othe

Appendix B. Example Programs B.2 Differential Measurement Examples These examples use the differential voltage instruction to measure the sensor and

Appendix B. Example Programs B.2.2 Edlog Differential Measurement Program Below is an example CR10X program. Information about using it with other

Appendix B. Example Programs B.3 Mean Vapor Pressure Examples These examples compute mean vapor pressure. TABLE B-3 shows the wiring used for these

Appendix B. Example Programs B.3.2 Edlog Vapor Pressure and Saturation Vapor Pressure Program Below is an example CR10X program. Information about

Appendix B. Example Programs ;Compute the vapor pressure. ;Relative humidity must be a fraction. ; 07: Z=X*Y (P36) 1: 3 X Loc [ e_sat ]

Appendix B. Example Programs B-8

Appendix C. Interfacing with HMP155A RS-485 Output C.1 RS-485 Interface Options The HMP155A outputs a 0 to 1 Vdc signal for temperature and relativ

Appendix C. Interfacing with HMP155A RS-485 Output ‘CR1000 Series Datalogger ‘Sensor Wiring: ‘HMP155A with RS-485 Output: ‘ ‘ HMP155A HMP155A S

Appendix C. Interfacing with HMP155A RS-485 Output The public variables for temperature and relative humidity can be viewed in the ‘Numeric Display’

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Appendix C. Interfacing with HMP155A RS-485 Output C.3 MD485 Multidrop Interface Option The MD485 Multidrop Interface can be used to interface the R

Appendix C. Interfacing with HMP155A RS-485 Output Use the Device Manager in Windows to determine which COM port the USB/RS-485 cable was assigned:

Appendix C. Interfacing with HMP155A RS-485 Output Using HyperTerminal, send the following commands to the HMP155A: VERS[enter] to get a response fr

Appendix C. Interfacing with HMP155A RS-485 Output Connect the MD485’s CS I/O port to the datalogger’s CS I/O port using an SC12 cable. Use the HMP1

Appendix C. Interfacing with HMP155A RS-485 Output 'CR1000 Series Datalogger 'Change HMP155A default serial settings from 4800,E,7,1 To 96

Appendix C. Interfacing with HMP155A RS-485 Output The public variables for temperature and relative humidity can be viewed in the ‘Numeric Display’

Appendix C. Interfacing with HMP155A RS-485 Output C-10

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Precautions DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND TRIPODS, TOWERS, AND ANY ATTACHMENTS TO

Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to spec

Table of Contents B. Example Programs .... B-1 B.1 Single-Ended Voltage Measurement Examples ...

HMP155A Temperature and Relative Humidity Probe 1. Introduction The HMP155A probe monitors relative humidity (RH) for the range of 0 to 100% RH and