Related Manuals for Campbell SDMS-30
Summary of Contents for Campbell SDMS-30
- Page 1 SDMS-30 Multipoint Scanning Snow Depth Sensor Revision: 01/17 2 0 1 6 C o p y r i g h t © C a m p b e l l S c i e n t i f i c C a n a d a C o r p .
- Page 3 Quotations for repairs can be given on request. It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment, in support of this policy a “Declaration of Hazardous Material and Decontamination”...
- Page 5 Periodically (at least yearly) check electrical ground connections. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CLIENT ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
- Page 7 PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North American market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in...
-
Page 9: Table Of Contents
10.1 RS-232 Sample Program ..............13 11. Mounting ..............15 11.1 Adjusting Inclination Angle or Direction of the SDMS-30 ....17 12. Maintenance ............. 17 Figures FIGURE 1-1. Circular Laser Area ..............3 FIGURE 9-1. Settings for Terminal Emulator Software....... 12 FIGURE 9-2. - Page 10 SDMS-30 Multipoint Scanning Snow Depth Sensor FIGURE 11-2. SDMS-30 Mounting Angles ..........16 Tables TABLE 4-1 Set up Wiring for SDI-12 ............4 TABLE 4-2 Set up Wiring for RS-232 ............5 TABLE 7-1 Firmware Update Wiring ............9 TABLE 7-2 Power Wiring ................9 TABLE 7-3 SDI-12 Wiring ................
-
Page 11: Introduction
SDMS-30 Multipoint Scanning Snow Depth Sensor Introduction The SDMS-30 Series Snow Gauge scans the laser on a circular path on the surface of snow and measures distance from each point on the path. Once it finishes a round of measurements, it takes an intelligent average of the depths at these points to provide a representative average snow depth of the target area. -
Page 12: Precautions
SDMS-30 Multipoint Scanning Snow Depth Sensor Precautions The SDMS-30 uses a Class 2 laser. Do not stare into laser beam. Initial Inspection • Upon receipt of the SDMS-30, inspect the packaging and contents for damage. File any damage claims with the shipping company. -
Page 13: Set Up Using Rs-232
SDMS-30 Multipoint Scanning Snow Depth Sensor Set Up Using RS-232 Use Table 4-2 when setting up an SDMS-30 to communicate to a Campbell Scientific datalogger via RS-232. TABLE 4-2 Set up Wiring for RS-232 Step Procedure Connect the Black cable wire from the sensor to a 12-15 Vdc, 2 Amp power supply’s ground. -
Page 14: Operation
SDMS-30 Multipoint Scanning Snow Depth Sensor Sensor Specifications • Method: multipoint laser scanning • Number of Scanning Points: 36 points • Range: 1 - 5 meters • Target Area Diameter: 30 cm – 200 cm depending on installation height and angle •... -
Page 15: Sdi-12 Command List
SDMS-30 Multipoint Scanning Snow Depth Sensor SDI-12 Command List The snow SDMS-30 supports much of SDI-12 features and specifications. Table 6-1 is a list of currently available SDI-12 commands and responses to the commands, where “a” is the address of the sensor. -
Page 16: Rs-232/Rs-422 Command List
The result immediately shows up if verbose level is set to 1. Otherwise, it will show up at regular 1 minute interval. SDMS-30 status. This shows various system information such as current firmware version and @s⏎ installation angle and height. -
Page 17: Wiring
SDMS-30 Multipoint Scanning Snow Depth Sensor Wiring The cable/connector assembly provides all the required connections outlined below: • 12 - 15 Vdc, 2 Amp power supply • Full duplex RS-422 (RS-485) interface for external loggers • SDI-12 interface for external loggers Align markers on the male and female connectors to plug in and fasten the cable to the sensor. -
Page 18: Powering Up
C1/C3/… Yellow C2/C4/... Powering Up The SDMS-30 requires a 12 – 15 Vdc power supply capable of providing up to 2 Amps continously. Warning To avoid shock or damage to the instrument, never apply power while working on wiring and connections. -
Page 19: Manual Calibration
Updating Firmware To update the firmware of the sensor, download the firmware available on the website http://www.campbellsci.ca/sdms-30. Wire up the SDMS-30 sensor to the DB9 female terminal block as per Table 10-1. TABLE 10-1 Wiring for Firmware Update Colour Function... -
Page 20: Figure 9-1. Settings For Terminal Emulator Software
SDMS-30 Multipoint Scanning Snow Depth Sensor FIGURE 9-1. Settings for Terminal Emulator Software Change the sensor baud rate to 57,600 by sending the command “@b 0” through the Terminal software. Extract the firmware .zip file downloaded from the website. Run the Xloader.exe program from the folder (Figure 9-2) Browse the files on the PC using the “…”... -
Page 21: Sample Crbasic Programs
SDMS-30 Multipoint Scanning Snow Depth Sensor 10. Sample CRBasic Programs 10.1 RS-232 Sample Program Use the sample program in CRBasic Example 10-1 when setting up the sensor to communicate with a datalogger via RS-232. CRBasic Example 10-1. RS-232 Sample Program for CR1000... - Page 22 SDMS-30 Multipoint Scanning Snow Depth Sensor '------------------------------------------------------------------------------- 'Snow depth data table '------------------------------------------------------------------------------- DataTable(SnowDepth,1,-1) DataInterval (0,SDMS30_Interval,Min,10) Sample(1,SDMS30_Depth_Avg,FP2) Sample(2,SDMS30_Temperature(),FP2) Sample(36,SDMS30_Depth_Points(),FP2) Sample(36,SDMS30_Distance_Points(),FP2) EndTable 'Main Program BeginProg 'Open COM port for SDMS30 SerialOpen (SDMS30_COMport,SDMS30_baud_rate,0,10,2000) 'Retrieve install angle and height from the sensor SerialFlush (SDMS30_COMport) SerialOut (SDMS30_COMport,"@s"...
-
Page 23: Mounting
It is not intended for operation under water. All that is required is an appropriate mounting fixture. Position the SDMS-30 about one metre above the maximum seasonal snow depth height. This will provide enough height for required accuracy and resolution. -
Page 24: Figure 11-2. Sdms-30 Mounting Angles
SDMS-30 Multipoint Scanning Snow Depth Sensor Screws Screw Holes FIGURE 11-2. SDMS-30 Mounting Angles TABLE 11-1 SDMS-30 Mounting Procedure Step Procedure Attach the L shaped mount to the flat back mount using the common hole and crescent shaped screw holes. -
Page 25: Adjusting Inclination Angle Or Direction Of The Sdms-30
SDMS-30 Multipoint Scanning Snow Depth Sensor 11.1 Adjusting Inclination Angle or Direction of the SDMS-30 The SDMS-30 can be installed at any angle between 0 and 45 degree from the pole. After loosely tightening the screw on the common hole (Figure 11-1), the... - Page 26 CAMPBELL SCIENTIFIC COMPANIES Campbell Scientific, Inc. (CSI) 815 West 1800 North Campbell Scientific Centro Caribe S.A. (CSCC) Logan, Utah 84321 300N Cementerio, Edificio Breller UNITED STATES Santo Domingo, Heredia 40305 COSTA RICA www.campbellsci.com info@campbellsci.com www.campbellsci.cc info@campbellsci.cc Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Campbell Scientific Ltd.