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Campbell C477 Instruction Manual

Summary of C477

  • Page 1

    Cs475, cs476 and c477 radar water level sensor revision: 1/10 c o p y r i g h t © 2 0 0 9 - 2 0 1 0 c a m p b e l l s c i e n t i f i c , i n c ..

  • Page 2: Warranty and Assistance

    Warranty and assistance the cs475, cs476, and cs477 radar water level sensor is warranted by campbell scientific, inc. To be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty...

  • Page 3

    Cs475, cs476, cs477 table of contents pdf viewers note: these page numbers refer to the printed version of this document. Use the adobe acrobat® bookmarks tab for links to specific sections. 1. Overview .......................................................................1 2. Specifications .........

  • Page 4

    Cs475, cs476, cs477 table of contents ii 7.2 diagnostics and repair .......................................................................... 20 7.2.1 no measured value available - error e013................................ 20 7.2.2 no measured value available - error e041, e042, e043 ........... 2...

  • Page 5: Level Sensor

    Cs475, cs476, and cs477 radar water level sensor 1. Overview the cs475, cs476, and cs477 are radar ranging sensors typically used for water-level applications. They emit short microwave pulses and then measure the elapsed time between the emission and return of the pulses. The elapsed time measureme...

  • Page 6: 2.  Specifications

    Cs475, cs476, and cs477 radar water level sensor figure 1-1. Cs475, cs476, and cs477 2. Specifications measurement range cs475: 2 inch to 65 ft (50 mm to 20 m) cs476: 2 inch to 98 ft (50 mm to 30 m) cs477: 16 inch to 229 ft (400 mm to 70 m) accuracy cs475 (20 inch to 65 ft): ±0.2 inch (±5 mm) cs476 ...

  • Page 7

    Cs475, cs476, and cs477 radar water level sensor radar unit frequency: ~26 ghz electromagnetic compatibility: emission to en 61326; electrical equipment class b pulse energy: 1 mw maximum beam angle cs475: 10° (3-in dia horn) cs476, cs477: 8° (4-in dia horn) power requirements input voltage: 9.6 to ...

  • Page 8: 3.  Installation

    Cs475, cs476, and cs477 radar water level sensor 3. Installation 3.1 general safety instructions observe standard regulations and guidelines while installing and operating the radar sensors. You should follow country-specific installation standards, prevailing safety regulations, accident prevention...

  • Page 9

    Cs475, cs476, and cs477 radar water level sensor 1 2 2 3 3 4 5 5 6 7 8 9 10 11 12 13 14 15 4 (a) (b) (c) (d) figure 3-1. Components and hardware (see table 3-1 for description of labels) table 3-1. Description of components and hardware labels (a) cs475 (b) cs476 or cs477 (c) optional mounting base ...

  • Page 10

    Cs475, cs476, and cs477 radar water level sensor 3.4 installation recommendations before installing the radar sensor, you must consider all the suggested guidelines for site and maintenance issues. Do not attempt to install the sensor unless you are qualified to perform the installation. The sensor ...

  • Page 11

    Cs475, cs476, and cs477 radar water level sensor table 3-2. Radiation beam spread for cs475 (10° beam angle) distance in meters diameter of footprint in meters 1 0.18 5 0.87 10 1.76 15 2.64 20 3.53 table 3-3. Radiation beam spread for cs476/cs477 (8° beam angle) distance in meters diameter of footpr...

  • Page 12

    Cs475, cs476, and cs477 radar water level sensor hex nut indicate which direction the lobes extend the least. Orient the sensor such that one of the marks is aligned towards the wall or pier (see figure 3-2 and table 3-4). Cs475 cs476/cs477 1 2 figure 3-2. Polarization markings (see table 3-4 for la...

  • Page 13: 4.  Wiring

    Cs475, cs476, and cs477 radar water level sensor 4. Wiring 4.1 datalogger connection as shipped from campbell scientific, the sensor is fitted with a cable for connection with the datalogger. Appendix a describes replacing this cable. Connections to campbell scientific dataloggers are given in table...

  • Page 14: 5.  Configuration

    Cs475, cs476, and cs477 radar water level sensor 5. Configuration 5.1 default settings in most circumstances, the default settings (see table 5-1) should be used. Refer to appendix b for other setting options and sdi-12 commands. Table 5-1. Default settings setting default setting sdi-12 address 0 (...

  • Page 15

    Cs475, cs476, and cs477 radar water level sensor radar sensor then emits the short microwave pulses. Any echo occurring 0.5 m (1.6 ft) short of the distance you entered will be considered noise. To start false echo learn, do the axsfel+nnn.Nnn! Command (where nnn.Nnn = the actual distance to the wat...

  • Page 16: 6.  Programming

    Cs475, cs476, and cs477 radar water level sensor table 5-3. Example for setting water stage initial command response 0xss+7.010! Where (from left to right), 0—sensor’s address; 7.010—the initial water depth value used to calculate subsequent stage measurements 00011 where (from left to right), 0—sen...

  • Page 17

    Cs475, cs476, and cs477 radar water level sensor the sdi12recorder instruction has the following parameters: dest the dest parameter is a variable in which to store the results of the measurement. Dest must have enough elements to store all the data that is returned by the sensor or a 'variable out ...

  • Page 18

    Cs475, cs476, and cs477 radar water level sensor ‘define a data table for 60 minute maximum and minimums datatable (hourly,true,-1) datainterval(0,60,min,10) maximum(1,distance,fp2,0,0) minimum(1,distance,fp2,0,0) average(1,distance,fp2,false) stddev(1,distance,fp2,false) maximum(1,stage,fp2,0,0) mi...

  • Page 19

    Cs475, cs476, and cs477 radar water level sensor edlog allocates only one of the input locations needed for this instruction. Three input locations are required for this sensor. The additional input locations must be inserted manually using the input location editor. For information on manually inse...

  • Page 20

    Cs475, cs476, and cs477 radar water level sensor 7. Diagnostics, repair, and maintenance 7.1 testing procedure the test procedures for the sensor require the following steps: 1. Double check all wiring connections. 2. Connect the sensor to your datalogger and apply +12v power. 3. Compare the output ...

  • Page 21

    Cs475, cs476, and cs477 radar water level sensor • distance--the distance between the sensor and water surface. This value will be reported in either meters or feet, depending on the units setting. • diagnostic values—an error code. For example, code 0 = ok, code 13 = error e013 (see section 7.2). T...

  • Page 22

    Cs475, cs476, and cs477 radar water level sensor • manufacturer’s model number: ps61 (cs475), ps62 (cs476), or ps63 (cs477) • three digit firmware version number. • eight digit serial number of sensor. Table 7-3. Send identification command initial command response ai! A13vegabbbbps6233212345678 whe...

  • Page 23

    Cs475, cs476, and cs477 radar water level sensor table 7-4 shows an example of checking the crc. Table 7-4. Checking crc example initial command response 0v! Where 0=the sensor’s address 00013 where (from left to right), 0—sensor’s address; 001—the amount of time (in seconds) that you must wait befo...

  • Page 24

    Cs475, cs476, and cs477 radar water level sensor 7.2 diagnostics and repair the radar sensor is extremely reliable, but problems can occur during operation. Most of these problems are caused by the following: • sensor • environmental conditions • power supply • signal processing when you encounter a...

  • Page 25

    Cs475, cs476, and cs477 radar water level sensor the electronics module is replaced by doing the following steps (see figure 7- 1 and table 7-5): 1. Unscrew the housing cap (cap is not shown in figure 7-1). 2. Remove all wires that are attached or plugged into the electronics and note their location...

  • Page 26

    Cs475, cs476, and cs477 radar water level sensor 1 2 3 3 4 5 figure 7-1. Changing the electronics (see table 7-5 for label descriptions) table 7-5. Description of changing the electronics labels description 1 red wire 2 housing top view 3 screws to secure electronics to housing 4 electronics 5 housi...

  • Page 27

    Cs475, cs476, and cs477 radar water level sensor 7.3 maintenance the sensors are maintenance free under normal operation. 23.

  • Page 28

    Cs475, cs476, and cs477 radar water level sensor 24.

  • Page 29

    Appendix a. Replacing the cable the sensor is fitted with a cable for connection to the dataogger. The following procedure is for replacing the original cable (see figure a-1 and table a-1). 1. Unscrew the housing side compartment screw cap. 2. Loosen the cord grip on the cable entry. 3. Remove appr...

  • Page 30

    Appendix a. Replacing the cable 1 2 3 (a) (c) 4 5 6 7 8 9 10 11 12 (d) 13 (b) 14 15 16 17 18 figure a-1. Connecting the instrument housing (see table a-1 for description of labels) table a-1. Description of instrument housing labels connections description (a) side chamber sdi-12 wiring (b) top cham...

  • Page 31: Commands/changing Settings

    Appendix b. Entering sdi-12 commands/changing settings the sdi-12 commands are entered using the 25616 adjustment/display module or the terminal emulator in loggernet or pc400. These commands are also used in crbasic or edlog programming (see section 6). During normal communication, the datalogger s...

  • Page 32

    Appendix b. Entering sdi-12 commands/changing settings table b-1. Sdi-12 commands function sdi-12 command address query ?! Send identification ai! Acknowledge active a! Change address aab! Where a is the current address and b is the new address start verification av! Start measurement am! Start meas...

  • Page 33: B.1  Changing Settings

    Appendix b. Entering sdi-12 commands/changing settings b.1 changing settings b.1.1 query/set the address valid addresses are 0 to 9; a through z; and a through z. The factory default address is set to 0. The address can be verified by sending the sensor the address query command (see table b-2). Tab...

  • Page 34

    Appendix b. Entering sdi-12 commands/changing settings b.1.3 set water conditions the set water conditions command adapts the sensor to different water conditions. There are four different settings: • 0 (custom setting) • 1 (smooth--typical peak to trough of wave • 2 (medium--typical peak to trough ...

  • Page 35

    Appendix b. Entering sdi-12 commands/changing settings • 0 (off—this mode is typically not recommended; sensor is completely off until a new set power command is received) the off power mode should only be used by advanced users who want to turn the sensor off for extended time periods. In this mode...

  • Page 36

    Appendix b. Entering sdi-12 commands/changing settings b-6.

  • Page 37

    Appendix c. Fcc/ic equipment authorization (usa/canada only) the cs475, cs476, and cs477 are fcc approved. Modifications to the sensors must have express agreement from campbell scientific. Any modifications not approved by campbell scientific will cause the expiration of the operating license issue...

  • Page 40

    Campbell scientific companies campbell scientific, inc. (csi) 815 west 1800 north logan, utah 84321 united states www.Campbellsci.Com • info@campbellsci.Com campbell scientific africa pty. Ltd. (csaf) po box 2450 somerset west 7129 south africa www.Csafrica.Co.Za • cleroux@csafrica.Co.Za campbell sc...