INSTRUCTION MANUAL CS451/CS456 Submersible Pressure Transducer Revision: 7/14 C o p y r i g h t © 2 0 0 9 - 2 0 1 4 C a m p b e l l S c i e n t i f i c , I n c .
Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
Assistance Products may not be returned without prior authorization. The following contact information is for US and international customers residing in countries served by Campbell Scientific, Inc. directly. Affiliate companies handle repairs for customers within their territories. Please visit www.campbellsci.com to determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 227-9000.
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.
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 ........................................................................................ 18 Every Two to Three Years or on a Rotating Schedule ...................... 18 10. Troubleshooting ........................................................18 Appendices A. Importing Short Cut Code ...................................... A-1 A.1 Importing Short Cut Code into a Program Editor..........
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. 2. 3.
CS451/CS456 Submersible Pressure Transducer 4. Quickstart Short Cut is an easy way to program your datalogger to measure the sensor and assign datalogger wiring terminals. The following procedure shows using Short Cut to program the CS451/CS456. 2 1. Install Short Cut by clicking on the install file icon. Get the install file from either www.campbellsci.com, the ResourceDVD, or find it in installations of LoggerNet, PC200W, PC400, or RTDAQ software. 2.
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) 7.4.2 Edlog Programming Edlog dataloggers read the CS451/CS456 using the SDI-12 Recorder (P105) instruction.
CS451/CS456 Submersible Pressure Transducer 8.1.1 PC Connection Using the A200 The A200 or another device is required to connect the CS451/CS456 to a PC. This allows sensor settings to be changed via our Device Configuration Utility. 8.1.1.1 Driver Installation If the A200 has not been previously plugged into your PC and your PC operating system is not Windows 7, the A200 driver needs to be loaded onto your PC. NOTE Drivers should be loaded before plugging the A200 into the PC.
CS451/CS456 Submersible Pressure Transducer 8.1.1.3 Powering the Sensor The A200 provides power to the sensor when it is connected to a PC’s USB port. An internal DC/DC converter boosts the 5 Vdc supply from the USB connection to a 12 Vdc output is required to power the sensor. 8.1.1.4 Determining which COM Port the A200 has been Assigned When the A200 driver is loaded, the A200 is assigned a COM port number.
CS451/CS456 Submersible Pressure Transducer FIGURE 8-2. Connect screen There are three settings that can be changed: SDI-12 address, Pressure/Level Units, and Temperature Units. Double-click on the window of the units to be changed. This will open a pick menu box. Select the desired units and Apply the changes. 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-12 Sensor Support, www.sdi-12.org, or www.youtube.
CS451/CS456 Submersible Pressure Transducer TABLE 8-3. SDI-12 Commands SDI-12 Command Command Function Values Returned aM! Configured settings Pressure/Level, Temperature aM1! PSIG, °C Pressure, Temperature aM2! PSIG, °F Pressure, Temperature aM3! kPa, °C Pressure, Temperature aM4! kPa, °F Pressure, Temperature aM5! Sensor’s Serial Number Serial Number aM6! Ohms, ohms, °C ∆R, Rb, Temperature aM7! Configured settings (provides data in less than 0.
CS451/CS456 Submersible Pressure Transducer Periodic evaluation of the desiccant is vital for keeping the vent tube dry. The CS451/CS456 ships with the desiccant tube attached. To assess the effectiveness of the desiccant, use one of the following: 9.1 9.2 • The desiccant in the tube changes color from blue to pink when the drying power is lost. • The Enclosure Accessory Humidity Indicator Card (pn 28878). Every Visit • Collect data. • Visually inspect wiring and physical conditions.
CS451/CS456 Submersible Pressure Transducer Problem: Transducer appears to be operating properly but data shows a periodic or cyclic fluctuation not attributable to water level changes. Suggestion: A kinked or plugged vent tube will not effectively vent a gauge pressure (Vented) type of device. Normal changes in barometric pressure will appear as water level fluctuations and these types of errors are typically on the order of 1 foot of water level.
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Appendix A. Importing Short Cut Code This tutorial shows: • How to import a Short Cut program into a program editor for additional refinement • How to import a wiring diagram from Short Cut into the comments of a custom program A.1 Importing Short Cut Code into a Program Editor Short Cut creates files that can be imported into either CRBasic Editor or Edlog program editor. These files normally reside in the C:\campbellsci\SCWin folder and have the following extensions: • • • • • • • .
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 program by opening the associated .DEF file. Copy and paste the section beginning with heading “-Wiring for CRXXX–” into the CRBasic program, usually at the head of the file. After pasting, edit the information such that a ' character (single quotation mark) begins each line.
Appendix B. Example Programs B.1 CRBasic Programs B.1.
Appendix B. Example Programs B.1.
Appendix B. Example Programs B.2 Example Program for CR10(X) Dataloggers Below is a portion of a CR10X program that measures the CS451/CS456. NOTE The instructions below do not store data in final storage. Instruction 92, Instruction 77, and processing instructions such as Instruction 70 are required to store the data permanently.
Appendix B.
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 Instrument Data Report provides a list of the pressure and temperature at which the sensor was tested. Pressure [kPa] is the pressure applied (listed in kilopascals) to the sensor.
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 and valid entries for pp (pressure/level) are: 0 = psig 1 = kPa 2 = bar 3 = feet 4 = meter 5 = inch 6 = millimeter Only SDI-12 instruction aM!, aM7!, and aM8! output the results obtained when using the multiplier and offset. The multiplier and offset are only applied to the pressure/level value, not to the temperature.
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). 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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