Campbell-scientific CS725 Snow Water Equivalency Sensor Manuel d'utilisateur

CS725 Snow Water Equivalency SensorRevision: 8/12 Copyright © 2010-2012Campbell Scientific, Inc.

CS725 Snow Water Equivalency Sensor Coverage Beam Angle: 60° Operating Temperature: -40° to +40°C Maximum Cable Length: 30 m (95 ft) (9600 bps o

CS725 Snow Water Equivalency Sensor FIGURE 4-1. CS725 connection to DB9F-TERM When connecting the CS725 to a computer, a power source is required to

CS725 Snow Water Equivalency Sensor When the power is applied to the CS725 or the connector is plugged in, the CS725 will output the following message

CS725 Snow Water Equivalency Sensor The menus can be switched between English and French. To change the language setting, key the command .L<Enter

CS725 Snow Water Equivalency Sensor 2. [.h] The [.h] command is used to obtain the current histogram results. This information would normally be us

CS725 Snow Water Equivalency Sensor 4. [.hl] The [.hl] command is used to obtain a graphical representation of the current histogram results. This

CS725 Snow Water Equivalency Sensor -Elapsed time,current histo : 00:03:59 Pos K = 240.4; Pos Tl = 427.5; Cnt K = 003679.8; Cnt Tl = 000088.3;

CS725 Snow Water Equivalency Sensor 9. [.dd] The [.dd] command is used to set the current date and time. The following menu is activated from the [

CS725 Snow Water Equivalency Sensor 10. [.hd] The [.hd] command is used to read back histograms from EPROM according to selected dates. When the [

CS725 Snow Water Equivalency Sensor 11. [.f] The [.f] command is used to read back measurement results from EPROM according to selected dates. Fo

CS725 Snow Water Equivalency Sensor 14. [.fs] The [.fs] command is used to read back last results in short form. The short form consists of the dat

CS725 Snow Water Equivalency Sensor [4] Delay after start of measure for data transmission (secs.) This defines the time at which the calculated resu

CS725 Snow Water Equivalency Sensor Once the soil is frozen, this quantity is relatively constant. The format is an integer between 1 and 150. [10]

CS725 Snow Water Equivalency Sensor [16] SN Threshold for the snow cover This parameter is a threshold above which the normal calculation of the SWE w

CS725 Snow Water Equivalency Sensor humidity of the soil specified in the parameter HCalib. When this is done, the new values of n0Ke and n0Tl will b

CS725 Snow Water Equivalency Sensor The file to retrieve will then be selected using the Hyper Terminal function. 19. [%Rhard][%Rboot] [%Rhard] rest

CS725 Snow Water Equivalency Sensor The collimator weighs 25 kg (55 lb). CAUTION A long safety strap is also included for securing the collimator to

CS725 Snow Water Equivalency Sensor It is reasonable to have small amounts of wood material within the 6 m clearance radius. Be aware that reducing t

CS725 Snow Water Equivalency Sensor background levels of K and Tl counts, and moving the location may be required to improve the results from the CS72

CS725 Snow Water Equivalency Sensor • A delay will need to be typed in followed by the run time duration. It is recommended to run the test for 1 or

Warranty “PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in materi

CS725 Snow Water Equivalency Sensor TABLE 8-3. Thallium (Tl) Count Range Guideline Count Range 24 Hour Tl Count Range 1 Hour Tl Recommendation

CS725 Snow Water Equivalency Sensor 9.1 Mounting Options FIGURE 9-1. Position of 1/4‐20 mounting holes The CS725 comes with mounting plates that ca

CS725 Snow Water Equivalency Sensor FIGURE 9-2. Example of wall/plate mounting It is possible to rotate the CS725’s main body with respect to the mo

CS725 Snow Water Equivalency Sensor FIGURE 9-3. Horizontal pipe mounting shown with the 27412 Mount Kit A fully mounted CS725 with the 27412 mountin

CS725 Snow Water Equivalency Sensor If the installation is being done with no snow present, then the following needs to be done to complete the setup:

CS725 Snow Water Equivalency Sensor radiation count values seen in the detailed measurement data output string which can be accessed by typing the com

CS725 Snow Water Equivalency Sensor After the memory is allocated (within 1 minute), the CS725 will prompt for the file transfer with the following me

CS725 Snow Water Equivalency Sensor 12. System Power Requirements and Recommendations 12.1 Non Solar-Powered Sites It is always recommended that the

CS725 Snow Water Equivalency Sensor absorption and energy degradation by the snow of the gamma rays from the ground is the basic information for the c

CS725 Snow Water Equivalency Sensor 14. Maintenance and Assembly There is no recommended user maintenance required for the CS725. We do not recommen

Assistance Products may not be returned without prior authorization. The following contact information is for US and international customers residing

CS725 Snow Water Equivalency Sensor FIGURE 14-2. CS725 inner tube shown FIGURE 14-3. CS725 cutout view 32

CS725 Snow Water Equivalency Sensor FIGURE 14-4. CS725 with top cap removed 15. Datalogger CRBasic Programming 15.1 Extended Data Output (.flla) C

CS725 Snow Water Equivalency Sensor Alias CS725_Date_Time(1) = CS725_Day Alias CS725_Date_Time(2) = CS725_Month Alias CS725_Date_Time(3) = CS725_Year

CS725 Snow Water Equivalency Sensor 'Main Program BeginProg 'Prepare COM1 for the CS725 SerialOpen (Com1,9600,3,0,1000) 'Scan r

CS725 Snow Water Equivalency Sensor 'CS725_Crystal_TEMP_MAX *Suggest to Output to Final Storage* 'CS725_Hist_Blocks *Sugge

CS725 Snow Water Equivalency Sensor 'Define Data Tables DataTable (Diagnostics,1,-1) DataInterval (0,1440,Min,10) Minimum (1,batt_volt,FP2,0,Fa

CS725 Snow Water Equivalency Sensor 38

Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbel

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 ii 13. Detailed Measurement Theory ...29 14. Maintenance and Assembly ...

Cautions / Safety Notes • If you are unable to determine that your structure or mounting method is suitable for the CS725 sensor, please contact an

CS725 Snow Water Equivalency Sensor 1. Introduction The CS725 sensor is primarily designed to measure the SWE (Snow Water Equivalency) in a snow pac