INSTRUCTION MANUAL CS451/CS456 Submersible Pressure Transducer Revision: 4/15 C o p y r i g h t © 2 0 0 9 - 2 0 1 5 C a m p b e l l S c i e n t i f i c , I n c .
Assistance Products may not be returned without prior authorization. The following contact information is for Canadian and international clients residing in countries served by Campbell Scientific (Canada) Corp. directly. Affiliate companies handle repairs for clients within their territories. Please visit www.campbellsci.ca to determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC (CANADA) CORP., phone (780) 454-2505.
Precautions DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS, TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE.
PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. (CSI) primarily for the US market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: Length: Mass: Pressure: Volume: 1 in2 (square inch) = 645 mm2 1 in. (inch) = 25.4 mm 1 ft (foot) = 304.8 mm 1 yard = 0.914 m 1 mile = 1.609 km 1 oz. (ounce) = 28.35 g 1 lb (pound weight) = 0.454 kg 1 psi (lb/in2) = 68.95 mb 1 US gallon = 3.
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 specific sections. 1. Introduction ................................................................. 1 2. Cautionary Statements ............................................... 1 3. Initial Inspection ......................................................... 1 4. Quickstart .................................................................... 2 5. Overview ...........
Table of Contents 9. Maintenance ..............................................................17 9.1 9.2 Every Visit ........................................................................................ 17 Every Two to Three Years or on a Rotating Schedule ...................... 17 10. Troubleshooting ........................................................18 Appendices A. Importing Short Cut Code into a Program Editor ..................................................................... A-1 B.
Table of Contents Tables 7-1. 7-2. 8-1. 8-2. 8-3. D-1. D-2. E-1. E-2. SDI-12 Wiring ................................................................................... 11 RS-232 Wiring ................................................................................... 11 Factory Settings ................................................................................. 13 A200 Wiring ...................................................................................... 14 SDI-12 Commands...................
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CS451/CS456 Submersible Pressure Transducer 1. Introduction The CS451/CS456 Submersible Pressure Transducer provides pressure and temperature measurements. It uses the SDI-12 or RS-232 communications protocols to communicate with an SDI-12 or RS-232 recorder simplifying installation and programming. The CS450/CS455 can be used with an A150 desiccated case allowing the transducer to be connected to a CWS900 wireless sensor or prewired enclosure. NOTE 2. 3.
CS451/CS456 Submersible Pressure Transducer 4. x The model number and pressure range is etched on the housing and the cable length is printed on the label near the connection end of the cable. Check this information against the shipping documentation to ensure that the expected product was received. x Ensure that the desiccant tube is attached to the vent tube on the cable. The desiccant should be blue; replace if it is another color.
CS451/CS456 Submersible Pressure Transducer 4. Select Datalogger Model and Scan Interval (60 second or higher scan interval is recommended). Click Next. 5. Under the Available Sensors and Devices list, select the Sensors | Water | Level & Flow folder. Select CS450/CS455 Pressure Transducer, click to move the selection to the Selected device window. Water level defaults to feet and temperature defaults to degrees Celsius.
CS451/CS456 Submersible Pressure Transducer 6. Under the Available Sensors and Devices list, select the Sensors | Water | Level & Flow folder. Select Offset Calculation, click to move the selection to the Selected device window, then select Lvl_ft for the Linked Level and enter the initial water level in the Observed Level Reading box. 7. 4 After selecting the sensor and offset calculation, click at the left of the screen on Wiring Diagram to see how the sensor is to be wired to the datalogger.
CS451/CS456 Submersible Pressure Transducer 8. Select any other sensors you have, then finish the remaining Short Cut steps to complete the program. The remaining steps are outlined in Short Cut Help, which is accessed by clicking on Help | Contents | Programming Steps. 9. If LoggerNet, PC400, or PC200W is running on your PC, and the PC to datalogger connection is active, you can click Finish in Short Cut and you will be prompted to send the program just created to the datalogger. 10.
CS451/CS456 Submersible Pressure Transducer Standard Nose Cone Weighted Nose Cone 1/4 inch NPT Nose Cone FIGURE 5-1. CS451 nose cone options 6.
CS451/CS456 Submersible Pressure Transducer Measurement Ranges: CAUTION Pressure (psig) Pressure (kPa) Depth of fresh water 0 to 2.9 0 to 20 0 to 2 m (6.7 ft) 0 to 7.25 0 to 50 0 to 5.1 m (16.7 ft) 0 to 14.5 0 to 100 0 to 10.2 m (33.4 ft) 0 to 29 0 to 200 0 to 20.4 m (67 ft) 0 to 72.5 0 to 500 0 to 50.9 m (167 ft) 0 to 145 0 to 1000 0 to 102 m (334.5 ft) Accuracy: ±0.1% full scale range TEB* or ±0.05% full scale range TEB** Resolution: 0.
CS451/CS456 Submersible Pressure Transducer Air Gap Standard and weighted nose cone: NPT fitting: Weight: 25431 Split Mesh Grip Accepts cable diameter: Breaking Strength: 0.653 cm (0.257 in) 2.72 cm (1.07 in) CS451: 0.17 kg (0.37 lb) CS456: 0.10 kg (0.23 lb) Cable: 0.421 kg/m (0.283 lb/ft) 4.57 to 6.35 mm (0.18 to 0.
CS451/CS456 Submersible Pressure Transducer 7.1.3 Appropriate Water Depth The CS451/CS456 must be installed below the water at a fixed depth. This depth should be chosen so the water pressure will never exceed the transducer’s pressure range (twice its pressure range). CAUTION The output reading will not be correct, and the transducer can be damaged if pressure is excessive (2 x full scale). Pressure can be converted to feet of fresh water using the following simple equation: 1 psi = 2.
CS451/CS456 Submersible Pressure Transducer the cable. If installing in a well, fasten the cable to the well head. Wrap the cable ties around the cable jacket. CAUTION Never suspend the CS451/CS456 from the connections at the top of the cable. Sharp bends or excessive pinching of the cable can cause damage and may pinch off the vent tube causing measurement errors. 7.2.2.
CS451/CS456 Submersible Pressure Transducer For example, if the correct elevation of the water, as measured by a staff gauge or other measurement device, is 2015.50 feet, and the CS451 provides a reading of 5.76 psig, then: 5.76 psig 2.31 ft/psig = 13.3056 ft. So, the offset is calculated: 2015.50 ft – 13.3056 ft = 2002.1944 ft This offset can be accounted for in the program instruction of the SDI-12 recorder. 7.3 Wiring NOTE Power down your system before wiring the CS451/CS456.
CS451/CS456 Submersible Pressure Transducer 7.3.3 A150/CWS900 The A150 desiccated case allows the CS451/CS456 to be connected to the CWS900 wireless sensor and then used in a wireless network. FIGURE 7-2 shows the CS451 wired to the A150’s terminal block. The 26972 cable is included with the A150. FIGURE 7-2. A150 wired for CS451 pressure sensor and CWS900 connector 7.4 Programming Short Cut is the best source for up-to-date datalogger programming code.
CS451/CS456 Submersible Pressure Transducer When using a CR200(X), the SDI12Recorder() instruction has the following syntax: SDI12Recorder(Destination,OutString,Multiplier,Offset) For the other CRBasic dataloggers, the SDI12Recorder() instruction has the following syntax: SDI12Recorder(Destination, SDIPort, SDIAddress, “SDICommand”, Multiplier, Offset) 8. Operation 8.1 Configuration TABLE 8-1 shows default settings of the CS451/CS456. TABLE 8-1.
CS451/CS456 Submersible Pressure Transducer attaches to a PC’s USB port, and a type B male connector that attaches to the A200’s USB port. FIGURE 8-1. A200 Sensor-to-PC Interface TABLE 8-2. A200 Wiring Color Sensor Cable Label A200 Terminal Red 12V +12Vdc Black G G White C Tx Blue G Rx Yellow G G Clear Signal Ground G 8.1.1.3 Powering the Sensor The A200 provides power to the sensor when it is connected to a PC’s USB port.
CS451/CS456 Submersible Pressure Transducer package (e.g., LoggerNet) before and after the installation, or look in the Windows Device Manager list under the ports section (access via the control panel). 8.1.2 Device Configuration Utility (version 2.03 or higher) The Device Configuration Utility (DevConfig) allows you to change the settings of the CS451/CS456. DevConfig is shipped on the Campbell Scientific ResourceDVD included with the CS451/CS456.
CS451/CS456 Submersible Pressure Transducer 8.2 SDI-12 Commands NOTE This section briefly describes using the SDI-12 commands. Additional SDI-12 information is available at Appendix D, SDI(p. D-1), www.sdi-12.org, or 12 Sensor Support www.youtube.com/user/CampbellScientific. The CS451/CS456 uses an SDI-12 compatible hardware interface and supports a subset of the SDI-12 commands. The most commonly used command is the aM! command, issued by the datalogger, where a represents the sensor address.
CS451/CS456 Submersible Pressure Transducer when digital communications break down, resulting in either no response or excessive SDI-12 retries and incorrect data due to noise problems. (Using SDI-12 commands like aMC!, which adds a CRC check, can significantly improve incorrect data issues.) 8.3 Measuring Multiple SDI-12 Sensors Up to ten CS451/CS456 sensors or other SDI-12 sensors can be connected to a single datalogger control port.
CS451/CS456 Submersible Pressure Transducer 10. Troubleshooting The most common causes for erroneous pressure transducer data include: x poor sensor connections to the datalogger x damaged cables x damaged transducers x moisture in the vent tube Problem: Unit will not respond when attempting serial communications. Suggestion: Check the power (red is +V and black is ground) and signal (white is SDI-12 data) lines to ensure proper connection to the datalogger.
Appendix A. Importing Short Cut Code into a Program Editor This tutorial shows: x How to import a Short Cut program into a program editor for additional refinement x How to import a wiring diagram from Short Cut into the comments of a custom program Short Cut creates files that can be imported into either CRBasic Editor program editor. These files normally reside in the C:\campbellsci\SCWin folder and have the following extensions: x x x x x x .DEF (wiring and memory usage information) .
Appendix A. Importing Short Cut Code mark) begins each line. This character instructs the datalogger compiler to ignore the line when compiling the datalogger code.
Appendix B. Example Programs B.1 CRBasic Programs B.1.
Appendix B. Example Programs B.1.
Appendix C. Calibration Certificate Each CS451/CS456 has been calibrated to meet printed accuracy specification at multiple temperature and pressure ranges. If additional verification is required, a Calibration Certificate can be purchased for each CS451/CS456 Submersible Pressure Transducer. The calibration is done using NISTtraceable instruments. The Instrument Data Report provides a list of the pressure and temperature at which the sensor was tested.
Appendix C.
Appendix D. SDI-12 Sensor Support D.1 SDI-12 Command Basics SDI-12 commands have three components: Sensor address (a) – a single character, and is the first character of the command. The default address of zero (0) can be used unless multiple sensors are connected to the same port. Command body (e.g., M1) – an upper case letter (the “command”) followed by alphanumeric qualifiers. Command termination (!) – an exclamation mark. An active sensor responds to each command.
Appendix D. SDI-12 Sensor Support D.1.3 Send Identification Command (aI!) Sensor identifiers are requested by issuing command aI!. The reply is defined by the sensor manufacturer, but usually includes the sensor address, SDI-12 version, manufacturer’s name, and sensor model information. Serial number or other sensor specific information may also be included. An example of a response from the aI! command is: 013CSI451.Std.01_12345678 Where: SDI-12 version = 1.
Appendix D. SDI-12 Sensor Support TABLE D-2. SDI-12 Commands SDI-12 Command Command Function Values Returned aD! Configured settings Pressure/Level, Temperature aD1! psig, °C Pressure, Temperature aD2! psig, °F Pressure, Temperature aD3! kPa, °C Pressure, Temperature aD4! kPa, °F Pressure, Temperature aD5! Sensor’s Serial Number Serial Number aD6! Ohms, ohms, °C 'R, Rb, Temperature aD7! Configured settings (provides data in less than 0.
Appendix D. SDI-12 Sensor Support 3. Click on the Open Terminal button. 4. Press the key until the datalogger responds with the CR2XX> prompt. At the CR2XX> prompt, make sure the All Caps Mode box is checked and enter the command SDI12 . The response SDI12> indicates that the CS451/CS456 is ready to accept SDI-12 commands. 5. To query the CS451/CS456 for its current SDI-12 address, key in ?! and the CS451/CS456 will respond with its SDI-12 address.
Appendix D. SDI-12 Sensor Support characters are typed within 60 seconds, then the mode is exited. In that case, simply enter the command SDI12 again, press , and key in the correct control port number when prompted. 6. To change the SDI-12 address, key in aAb! , where a is the current address from the above step and b is the new address (see FIGURE D-2). The CS451/CS456 will change its address and the datalogger will respond with the new address.
Appendix D. SDI-12 Sensor Support selected, they will represent level of fresh water. The multiplier (slope) and offset should be used to correct for relative density of water. Sample number represents the number of values used to provide the output value received by the datalogger. This output value is an average of the samples. The extended SDI-12 command used to configure output units is aXCONFIG1=tt,pp,mmm.mm,ooo.
Appendix E. RS-232 Connection Via PC Terminal Software PC terminal software can be used to communicate with the CS451/CS456 via the RS-232 communication mode (see FIGURE E-1). The CS451/CS456 is connected to the PC via the A200 (see Section 8.1.1, PC Connection Using the A200 (p. 13)). Upon setup, the terminal emulator software will request you enter the Communication connection; defaults to a phone connection. Change the communication to appropriate “Com” in the “Connect Using” box (see Section 8.1.1.
Appendix E. RS-232 Connection Via PC Terminal Software FIGURE E-1. Terminal Emulator TABLE E-2.
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