Campbell CRS451 Manuel utilisateur

INSTRUCTION MANUAL

CRS451/CRS456 Submersible

Water-Level Recording Sensor

Revision: 1/14

Campbell Scientific, Inc.

Warranty

“PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are

warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in

materials and workmanship under normal use and service for twelve (12)

months from date of shipment unless otherwise specified in the corresponding

Campbell pricelist or product manual. Products not manufactured, but that are

re-sold by Campbell, are warranted only to the limits extended by the original

manufacturer. Batteries, fine-wire thermocouples, desiccant, and other

consumables have no warranty. Campbell’s obligation under this warranty is

limited to repairing or replacing (at Campbell’s option) defective products,

which shall be the sole and exclusive remedy under this warranty. The

customer shall assume all costs of removing, 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, Campbell will return such products best way CIP (Port of Entry)

INCOTERM® 2010, prepaid. This warranty shall not apply to any products

which have been subjected to modification, misuse, neglect, improper service,

accidents of nature, or shipping damage. This warranty is in lieu of all other

warranties, expressed or implied. The warranty for installation services

performed by Campbell such as programming to customer specifications,

electrical connections to products manufactured by Campbell, and product

specific training, is part of Campbell’s product warranty. CAMPBELL

EXPRESSLY DISCLAIMS AND EXCLUDES ANY IMPLIED

WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE. Campbell is not liable for any special, indirect,

incidental, and/or consequential damages.”

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. After an application engineer

determines the nature of the problem, an RMA number will be issued. Please

write this number clearly on the outside of the shipping 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 Cleanliness

and Decontamination” form and comply with the requirements specified in it.

The form is available from our web site at www.campbellsci.com/repair. A

completed form must be either emailed to repair@campbellsci.com or faxed to

(435) 227-9106. Campbell Scientific is unable to process any returns until we

receive this form. If the form is not received within three days of product

receipt or is incomplete, the product will be returned to the customer at the

customer’s expense. Campbell Scientific reserves the right to refuse service on

products that were exposed to contaminants that may cause health or safety

concerns for our employees.

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 and Handling Guidelines ..............1

3.1 Ships With............................................................................................2

4. Overview......................................................................2

5. Specifications .............................................................2

6. Installation...................................................................4

6.1 Appropriate Depth................................................................................4

6.2 Avoiding Freezing Conditions .............................................................5

6.3 Dislodge Bubbles .................................................................................5

6.4 Well Installation...................................................................................5

6.5 Other Installations ................................................................................6

6.6 Battery Voltage Reading ......................................................................6

6.7Attaching Suspension Cable to CRS451/CRS456 ...............................6

7. Programming ..............................................................8

7.1 Settings.................................................................................................8

7.2 Connect to the CRS451/CR456............................................................8

7.3 Configure CRS45X for Measurements ................................................9

7.4 Compensating Measurements for Barometric Pressure......................15

7.4.1 Using an Additional CRS45X.....................................................15

7.4.2 Using a Barometer ......................................................................15

8. Maintenance ..............................................................20

8.1 Every Visit .........................................................................................20

8.2 Every Two to Three Years or on a Rotating Schedule.......................20

8.3 Battery Replacement ..........................................................................21

9. Troubleshooting........................................................26

Table of Contents

Appendices

A. Calibration Certificate.............................................A-1

B. Conversion to Units of Measurement ...................B-1

Table

B-1. Conversion Factors.......................................................................... B-1

CRS451/CRS456 Submersible

Water-Level Recording Sensor

1. Introduction

The CRS451 consists of a water-level and water-temperature sensor that has its

own time clock and memory to store the collected data, in a compact stainless-

steel case. This frees users to place the sensor in remote sites and let it collect

data for long periods of time. The CRS451/CRS456 supports standard time-

based scanning and recording along with event-based recording based on water

level change (Delta) or logarithmic time sequence for pump and slug tests.

HydroSci software is included and supports test set up, data retrieval, and data

display.

The CRS451 has a 316L stainless-steel case that can be submerged in most

canals, wells, ponds, lakes, and streams. The CRS456 has a rugged titanium

case that allows it to be used in saltwater or other harsh 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 if encased in frozen liquid (see

Section 6.2, Avoiding Freezing Conditions, for more information).

•Although the CRS451/CRS456 is a rugged and reliable device, it is also a

highly precise scientific instrument and should be handled as such.

•Dropping the instrument or allowing it to “free fall” down a well may

damage the transducer.

•Confirm the compatibility of the instrument to non-water environments

before installation.

•The CRS456 should be used in harsh water applications, including salt

water.

3. Initial Inspection and Handling Guidelines

•Upon receipt of the CRS451/CRS456, inspect the packaging for any signs

of shipping damage. File damage claims with the shipping company.

•Immediately check package contents against the shipping documentation

(see Section 3.1, Ships With). Contact Campbell Scientific with any

discrepancies.

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

CRS451/CRS456 Submersible Water-Level Recording Sensor

•Fast scan rate

•Large data storage capacity

•High accuracy

•Long battery life

•Data retrieval through sealed USB connector

Measurement Time: < 1 s typical

Output: micro USB

Internal Data

Collection Memory: 4 MB

HydroSci Supported

Operating Systems: Windows XP, Windows Vista, or Windows 7

Logging/Scanning Modes: Standard, Delta, Logarithmic

Power Requirements: Internal user-replaceable lithium battery

Battery Life: 5+ years when logging interval is once per

hour

Power Consumption

Quiescent Current: < 80 μA

Measurement/

Communication Current: 4 mA for 1 s measurement

Measurement Ranges1:

Pressure

(psig)

Pressure

(kPa)

Meters of

fresh water

Feet of

fresh water

0 to 7.25

0 to 50

0 to 5.1

0 to 16.7

0 to 14.5

0 to 100

0 to 10.2

0 to 33.4

0 to 29

0 to 200

0 to 20.4

0 to 67

0 to 72.5

0 to 500

0 to 50.9

0 to 167

0 to 145

0 to 1000

0 to 102

0 to 334.5

Accuracy

Pressure Reading2:0.1% full-scale range TEB3

Temperature: ±0.2°C

Resolution: 0.0035% full-scale range

Overpressure: 2x pressure range

Dry Storage Temperature: –30° to 80°C

Operating Temperature: 0° to 60°C

CRS451/CRS456 Submersible Water-Level Recording Sensor

Freezing conditions may damage the CRS451/CRS456

(see Section 6.2, Avoiding Freezing Conditions, for more

information).

Body Material

CRS451: 316L Stainless Steel

CRS456: Titanium

Element Material

CRS451: 316L Stainless Steel

CRS456: Hastelloy®

Standard Cone Material: Delrin®

Weighted and NPT Material: Stainless Steel

Dimensions

Length: 22.23 cm (8.75 in)

Diameter: 2.22 cm (0.875 in)

Weight: 230 g (0.51 lb)

1The CRS451 is a sealed gage sensor and when not submerged will read

approximately 1 bar at sea level and less as elevation increases. The CRS451

is calibrated at 9 pressures starting at 0.6 bar up to full scale referenced to 1

bar. Points below 1 bar are used in the calibration for the benefit of those who

deploy this sensor at elevations above sea level.

2The accuracy specification listed pertains to the level of accuracy that the

CRS451/CRS456 is able to measure pressure. 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 atmosphere, the error of the barometric sensor must be

considered when calculating the resulting accuracy of the water level reading.

3Total Error Band (TEB) includes the combined errors due to nonlinearity,

hysteresis, nonrepeatability, and thermal effects over the compensated

temperature range, per ISA S51.1.

6. Installation

The CRS451/CRS456 is designed for water level measurements. Typical

applications include agricultural water level/flow, water wells, lakes, streams,

and tanks. If the device is to be installed in a liquid other than water or in

contaminated water, check the compatibility of the wetted material. The

CRS456 should be used in harsh water applications, including salt water.

6.1 Appropriate Depth

The CRS451/CRS456 must be installed below the water at a fixed depth. This

depth should be chosen so that the water pressure will never exceed the

transducer’s pressure range (twice its pressure rating).

CAUTION

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