Seametrics LevelSCOUT Manuel utilisateur

PROUDLY

MADE

IN THE

USA

ISO

9001

Precision Environmental Sensors

An ON

CON Brand

LevelSCOUT

Level/Temperature

Smart Sensor and Datalogger

Air-Met Scientic Pty Ltd

Work with Confidence

Air-Met Sales/Service

P: 1800 000 744

F: 1800 000 774

E: [email protected]

Air-Met Rental

P: 1300 137 067

E: [email protected]

W: www.airmet.com.au

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 2 seametrics.com

Registered trademarks and trademarks belong to their respective owners.

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 3 seametrics.com

General Information

What is the LevelSCOUT? .....................................................................................................................4

Initial Inspection and Handling ..........................................................................................................4

Do’s and Don’ts........................................................................................................................................5

How Pressure/Level Sensors Work....................................................................................................5

General Specication..............................................................................................................................6

Wiring and Component Information ...............................................................................................7

Installation

Power............................................................................................................................................................8

Connecting the LevelSCOUT to a Computer ................................................................................8

Installing the Aqua4Plus 2.0 Software.............................................................................................8

Installing the Sensor...............................................................................................................................9

Battery Life Calculator............................................................................................................................9

Connecting to Sensors........................................................................................................................ 10

Settings and Calibration

A Word About Units ............................................................................................................................ 12

Sensor Settings...................................................................................................................................... 12

Program Settings .................................................................................................................................. 13

Pressure Calibration............................................................................................................................. 15

Operation

Real-time Data ....................................................................................................................................... 19

Data Logging.......................................................................................................................................... 20

Reports...................................................................................................................................................... 24

Barometric Compensation ............................................................................................................... 27

Direct Read Modbus/SDI-12

Settings Units for Direct Read.......................................................................................................... 30

Reading Via Modbus RTU.................................................................................................................. 31

Maintenance

Changing Batteries............................................................................................................................... 32

Miscellaneous......................................................................................................................................... 32

Troubleshooting

Erratic Readings..................................................................................................................................... 33

Zero Readings When Pressurized................................................................................................... 33

Grounding Issues.................................................................................................................................. 33

Warranty ............................................................................................................ 35

TABLE OF CONTENTS

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 4 seametrics.com

What is the LevelSCOUT?

The Seametrics LevelSCOUTSmart Sensor is an integrated datalogger and level/temperature

sensor and is ideal for site assessments, tidal studies, environmental monitoring, surface

water discharge measurement, and aquifer level monitoring, as well as aquifer storage and

recovery. This sensor networks with all of the Seametrics Smart Sensor family.

This industry standard digital RS485 interface device records up to 50,000 records of level,

temperature, and time data, operates with low power, and features easy-to-use software

with powerful features. Constructed with 316 stainless steel, acetal, and Viton®, this sensor

provides high-accuracy readings in rugged and corrosive eld conditions.

The LevelSCOUT is an absolute sensor, requiring no vent tubes, desiccant, or bellows. It can

be paired with a BaroSCOUT barometric sensor and used with the Aqua4Plus 2.0 Barometric

Compensation Utility to adjust the LevelSCOUT readings for current atmospheric pressure.

A replaceable ½ AA 3.6v lithium battery powers the LevelSCOUT. The unit is programmed

using Seametrics’ easy-to-use Aqua4Plus 2.0 control software. Once programmed the unit

will measure and collect data at the time interval programmed.

Replace your analog sensor/datalogger with the Seametrics LevelSCOUT as a stand-

alone unit or network with other Seametrics Smart Sensors. While most will use the

LevelSCOUT with Seametrics Aqua4Plus 2.0 software, it is by no means limited to

that software. You can use your own Modbus®RTU software or logging equipment

to read measurements via RS485, tying into your existing systems and data bases.

Initial Inspection and Handling

Upon receipt of your smart sensor, inspect the shipping package for damage. If any

damage is apparent, note the signs of damage on the appropriate shipping form. After

opening the carton, look for concealed damage, such as a cut cable. If concealed damage

is found, immediately le a claim with the carrier.

Check the etched label on the sensor to be sure that the proper range and type were

provided. Also check the label attached to the cable at the connector end for the proper

cable length.

GENERAL INFORMATION

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 5 seametrics.com

How Pressure/Level Sensors Work

Liquids and gasses do not retain a xed shape. Both have the ability to ow and are often

referred to as uids. One fundamental law for a uid is that the uid exerts an equal

pressure in all directions at a given level. Further, this pressure increases with an increasing

depth of “submergence”. If the density of a uid remains constant (noncompressible...a

generally good assumption for water at “normal” pressures and temperatures), this

pressure increases linearly with the depth of “submergence”.

We are all “submerged” in the atmosphere. As we increase our elevation, the pressure

exerted on our bodies decreases as there is less of this uid above us. It should be noted

that atmospheric pressure at a given level does vary with changes in the weather. One

standard atmosphere (pressure at sea level at 20º C) is dened to be 14.7 PSI (pounds per

square inch).

There are several methods to reference a pressure measurement. Absolute pressure is

measured with respect to an ideal vacuum (no pressure). Gauge pressure is the most

common way we express pressure in every day life and is the pressure exerted over and

above atmospheric pressure. With this in mind, gauge pressure (Pg) can be expressed

as the dierence between the absolute pressure (Pa) and atmospheric pressure (Patm):

Pg = Pa - Patm.

The LevelSCOUT is an absolute sensor and will require an outside barometric reference

to obtain “gauge” type readings.

GENERAL INFORMATION

Do handle the device with care.

Do store the device in a dry, inside

area when not in use.

Do install the device so that the

cable connector is kept dry.

Don’t support the device with the connector.

Use a strain relief device to take the

tension o the connectors.

Don’t allow the device to free-fall down a well

as impact damage can occur.

Don’t bang or drop the device on hard

objects.

Do’s and Don’ts

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 6 seametrics.com

General Specication

The Seametrics LevelSCOUT is a microprocessor based digital intelligent sensor designed

to measure and record level, temperature, and time, utilizing state-of-the-art low power,

battery operated circuitry.

Level is measured with an extremely rugged and stable piezo-electric media-isolated

pressure element combined with an analog-to-digital converter. This provides extremely

accurate and stable pressure input into the microprocessor on the circuit board.

Temperature is measured with an epoxy bead thermistor. The data is stored in non-

volatile memory. A serial communication link (RS485) provides communication to the

host computer.

Length (cabled version) 6.6” (16.7 cm)

Length (cableless version) 5.1” (12.9 cm)

Diameter 0.875” (2.22 cm)

Body Material 316 stainless steel or titanium

Wetted Materials 316 stainless steel or titanium, acetal, uoropolymer

Communication RS485 Modbus® RTU

Direct Modbus Read Output 32-bit IEEE oating point

Internal Math 32-bit oating point

Operating Temp. Range -20° C to 60° C

Storage Temp. Range -40° C to 80° C

Logging

Memory 50,000 records

Logging Rate 1x per second

Software Complimentary Aqua4Plus 2.0

File Formats .csv / .a4d

Power

Internal Battery One replaceable ½ AA 3.6 lithium battery

Expected Battery Life 4.5 years (depending on use)

Temperature

Element Type Thermistor

Accuracy ± 0.1° C

(from -20° C to 60° C)

Resolution 0.01° C

Units Celsius, Fahrenheit, Kelvin

GENERAL INFORMATION

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 7 seametrics.com

Level

Transducer Type Silicon strain gauge

Transducer Material 316 stainless steel

Ranges

Absolute1

PSI

FtH2O (max. depth)

mH2O (max. depth)

30, 50, 100, 300

35, 81, 196, 658

10, 24, 59, 200

Units PSI, FtH2O, inH2O, cmH2O, mmH2O, mH2O, inHg,

cmHg, mmHg, Bars, mBars, kPa

Accuracy ± 0.05% FS (@ 20° C)

± 0.10% FS (0° C to 40° C)

Resolution 0.0034% FS (typical)

Maximum Operating Pressure 1.1 x FS

Over Range Protection 3x FS (for >300 psi2, 1.75 FS)

Burst Pressure 600 psi (approx. 1350 ft or 410 m)

Wiring and Component Information

¹Depth range has 15 PSI subtracted to give actual depth allowed.

²Approx. 658 feet or 200 meters

GENERAL INFORMATION

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 8 seametrics.com

Power

The LevelSCOUT comes with a replaceable ½ AA 3.6v lithium battery.

Connecting the LevelSCOUT to a Computer

In its cabled conguration, the sensor cable is terminated with a weather-resistant

connector. In its cableless conguration, the sensor is terminated with a weather-

resistant connector inside a screw-cap. Connect the weather-resistant connector to

your computer’s USB port as shown below.

Connect the sensor to your PC using Seametrics’ USB to RS485

adapter.

Installing the Aqua4Plus 2.0 Software

The LevelSCOUT comes with the Aqua4Plus 2.0 host software that is installed on your PC

or laptop. Use this software to program the datalogger, to retrieve data from the logger,

to view collected data, and to export data to external les for use with spreadsheets or

databases.

Refer to the Aqua4Plus 2.0 software manual for details on installing and using the software.

LevelSCOUT can also be used with the full Aqua4Plus 2.0 software.

Using the LevelSCOUT Without Aqua4Plus 2.0

Most users will use the LevelSCOUT with Seametrics Aqua4Plus 2.0 software. However, the

LevelSCOUT is quite versatile, communicating via Modbus®RTU, allowing you to use your

own software or logging equipment.

INSTALLATION

Cap

Sensor

Cableless

Configuration

PC or Laptop

USB Port

USB to RS485

Adapter

Sensor

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 9 seametrics.com

Installing the Sensor

The LevelSCOUT measures level. The most common application is measuring liquid levels

in wells and tanks. In order to do this, the sensor must be installed below the water

level at a xed depth. The installation depth depends on the range of the sensor. The

sensor should not be installed below its maximum depth. If the sensor is installed below

its maximum depth, damage may result to the sensor and the output reading will not be

correct.

Note: If you are using an absolute sensor and you want to enter a depth-to-water

reference after data is collected, then see the Barometric Compensation section

before proceeding.

• Lower the sensor to the desired depth.

• Fasten the cable to the well head using tie wraps or a weather proof strain-relief

system.

• Take a measurement to insure the sensor is not installed below its maximum range.

Be sure the supplied cap is securely placed on the weather-resistant connector at the

top of the cable. Do not install such that the connector might become submerged with

changing weather conditions. The connector can withstand incidental splashing but is not

designed to be submerged.

The sensor can be installed in any position; however, when it leaves the factory it is

tested in the vertical position. Strapping the sensor body with tie wraps or tape will

not hurt it. If the sensor is being installed in a uid environment other than water,

be sure to check the compatibility of the uid with the wetted parts of the sensor.

Battery Life Calculator

The LevelSCOUT has a battery life calculator that is set at the factory when batteries are

rst put in the sensor. If you need to replace the batteries, see the Maintenance section

for replacement information and for information on resetting the battery life calculator.

If the battery life calculator is not reset, the remaining life information will be

incorrect.

INSTALLATION

LEVELSCOUT INSTR

Seametrics • 253.872.0284 Page 10 seametrics.com

INSTALLATION

Connecting to Sensors

Aqua4Plus 2.0 is designed to automatically detect your communication cable and scan for

sensors. It is recommended you connect your USB/RS485 cable to your PC and have the

sensor connected before opening Aqua4Plus 2.0.

If your cable and sensor were not connected before opening Aqua4Plus 2.0 simply connect

and click Rescan. While scanning is active you’ll see a green dot ash in the upper right

corner of the program. Scanning is complete when this dot stops ashing.

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