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CRS451/CRS456 Submersible Water-Level Recording Sensor 

 

The model number and pressure range are etched on the housing.  Check 

this information against the shipping documentation to ensure that the 

expected product was received. 

3.1  Ships With 

 

27555 USB 2.0 Cable Type A Male to Micro B Male, 6ft 

 

29225 HydroSci Software on CD 

4.  Overview 

The CRS451/CRS456, 

Submersible Water-Level Recording Sensor

, provides 

reliable, accurate pressure/level measurements that are fully temperature 

compensated.   

The 24 bit A/D has simultaneous 50/60 Hz rejection and automatic calibration 

for each measurement.  A number of additional advanced measurement 

techniques are employed to harness the best possible performance available 

from today’s state of the art pressure sensor technology.  The CRS451/CRS456 

reverts to a low power sleep state between measurements.  A series of 

measurements are performed yielding a temperature and pressure value.  This 

measurement cycle can be as fast as 1 second.   

The design features a piezoresistive sensor housed in a 316L stainless steel 

(CRS451) or titanium (CRS456) package to enhance reliability.  The rugged 

construction makes the CRS451/CRS456 suitable for water level measurement 

in irrigation applications, water wells, lakes, streams, and tanks.  The titanium 

package of the CRS456 makes it ideal for salt water or other harsh 

environments.  

The CRS451/CRS456 has three nose cone options.  The weighted nose cone 

makes the transducer easier to submerge to depth.  The NPT option allows the 

sensor to be mounted to a 1/4 inch fitting.  The nose cones can be exchanged at 

a later time. 

Communicating with the CRS451/CRS456 requires a micro USB cable and 

HydroSci software running on a computer with Windows XP or later.  

Configurable settings can be changed using Campbell Scientific’s HydroSci 

software utility. 

5.  Specifications 

Features:  

 

Field replaceable batteries 

 

Campbell Scientific quality  

 

No additional datalogger, enclosure, and power supply; reduces 

system costs and simplifies installation 

 

Free customer-friendly software for communication, configuration, 

data collection  

Summary of Contents for CRS451

Page 1: ...INSTRUCTION MANUAL CRS451 CRS456 Submersible Water Level Recording Sensor Revision 1 14 C o p y r i g h t 2 0 1 3 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...

Page 2: ......

Page 3: ...emoving reinstalling and shipping defective products to Campbell Campbell will return such products by surface carrier prepaid within the continental United States of America To all other locations Ca...

Page 4: ...g container Campbell Scientific s shipping address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Clea...

Page 5: ...ing Freezing Conditions 5 6 3 Dislodge Bubbles 5 6 4 Well Installation 5 6 5 Other Installations 6 6 6 Battery Voltage Reading 6 6 7 Attaching Suspension Cable to CRS451 CRS456 6 7 Programming 8 7 1 S...

Page 6: ...Table of Contents Appendices A Calibration Certificate A 1 B Conversion to Units of Measurement B 1 Table B 1 Conversion Factors B 1 ii...

Page 7: ...environments Before using the CRS451 CRS456 please study Section 2 Cautionary Statements Section 3 Initial Inspection Section 6 Installation 2 Cautionary Statements The CRS451 CRS456 will be damaged...

Page 8: ...cycle can be as fast as 1 second The design features a piezoresistive sensor housed in a 316L stainless steel CRS451 or titanium CRS456 package to enhance reliability The rugged construction makes the...

Page 9: ...Battery Life 5 years when logging interval is once per hour Power Consumption Quiescent Current 80 A Measurement CommunicationCurrent 4 mA for 1 s measurement Measurement Ranges1 Pressure psig Pressu...

Page 10: ...ssure If a barometric pressure sensor is used to remove the component of atmospheric pressure from the pressure reading provided by the CRS451 CRS456 while submerged in a column of water vented to the...

Page 11: ...reezing water 6 3 Dislodge Bubbles While submersing the CSR451 CRS456 air bubbles may become trapped inside the nose cone causing small offset errors until the bubbles dissolve Dislodge these bubbles...

Page 12: ...ife difficult by measuring battery voltage alone Knowing the energy consumption of the CRS451 CRS456 while in operation HydroSci displays a predicted remaining battery life by combining an estimate of...

Page 13: ...CRS451 CRS456 Submersible Water Level Recording Sensor 7...

Page 14: ...S451 CRS456 If you are using an XP computer please have the driver disc in the CD DVD drive before plugging in the USB cord A driver will need to be installed before the computer can connect with the...

Page 15: ...measurements you want to make a Barometer Pressure Reference should be selected if you want to use CR45X sensor as a barometer to compensate for changes in barometric pressure See Section 7 4 2 Using...

Page 16: ...e the Start Time otherwise the offset correction will not be correct 5 Select a Start and Stop Time a Select a time in the future when measurements should begin Selecting a time in the past will force...

Page 17: ...l Recording Sensor b If desired select time in future when measurements should cease c Select the rate at which measurements will be made This does not configure the senor for data storage only the ra...

Page 18: ...or 6 Select and Name Data Tables for Datalogging a Up to four different Data Tables can archive data at independent intervals with any combination of elements samples averages maximum etc b Contents o...

Page 19: ...CRS451 CRS456 Submersible Water Level Recording Sensor 7 Select which data in which format and unit of measurement is to be included in each of the data tables selected in the previous screen 13...

Page 20: ...ting If the Start Time is in the past the CRS45X will immediately begin logging data but any offset you may have applied will not be effective Also if the Stop Time is in the past no data will be logg...

Page 21: ...Field Application window choose Barometer Pressure Reference see Section 7 3 Configure CRS45X for Measurements 7 4 2 Using a Barometer The barometric pressure data from a nearby Campbell Scientific w...

Page 22: ...ometric pressure values a The Field Application Used to Produce Collected Measurement Data information will be shown based on the collected data file selected 3 Press the browse button next to the Bar...

Page 23: ...t of pressure or level If from a nearby Campbell Scientific weather station note that the reference column must have units associated with it The units can be any pressure or level units as defined in...

Page 24: ...corrected data file should be stored Rename the file as applicable 6 After completing all of the fields press the Build Corrected Data File button 7 Once the corrected data file has been built press t...

Page 25: ...lick The selection will be highlighted and will automatically be added to the graph Multiple columns can be added by holding the Ctrl key and dragging the mouse pointer over the column headings To see...

Page 26: ...umber and fill out the Declaration of Hazardous Material and Decontamination form 8 1 Every Visit Collect data Visually inspect the physical conditions Check battery condition by using a laptop and Hy...

Page 27: ...CRS451 CRS456 Submersible Water Level Recording Sensor 8 3 Battery Replacement Remove the set screws on the cap end of the CRS451 New Battery Screwdriver 21...

Page 28: ...CRS451 CRS456 Submersible Water Level Recording Sensor Gently pull the end out of the housing Unplug the connecter 22...

Page 29: ...CRS451 CRS456 Submersible Water Level Recording Sensor Gently pull the battery out the end Disconnect the battery Remove the battery Slide in the new battery Plug in the new battery 23...

Page 30: ...CRS451 CRS456 Submersible Water Level Recording Sensor Slide the battery into the housing Reconnect the cable 24...

Page 31: ...ible Water Level Recording Sensor Gently slide the end piece with its O rings into the housing Nicking the O ring could result in a leak Line up the holes and insert the set screw Do not over tighten...

Page 32: ...er data include Low battery Damaged CRS451 CRS456 Water damage Damage to diaphragm due to excessive pressure Atmospheric pressure not subtracted from pressure reading Problem Unit will not respond whe...

Page 33: ...e test chamber at the time of testing Pressure After kPa represents the resulting measurement output by the CRS451 CRS456 at the given pressure and temperature Finally Deviation After F S provides the...

Page 34: ...Appendix A Calibration Certificate A 2...

Page 35: ...ppendix B Conversion to Units of Measurement TABLE B 1 Conversion Factors Unit of Measurement Factor of Conversion Feet 2 3066587369 Inches 27 679904843 Meters 0 1019716213 Millimeters 101 9716213 B 1...

Page 36: ...Appendix B Conversion to Units of Measurement B 2...

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Page 38: ...ANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbell...

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