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Level Pro Sentinel Series Instruction Manual

Made by: Level Pro
Type: Instruction Manual
Category: Water Heater
Pages: 17
Size: 1.83 MB

 

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Read carefully the instructions published in this manual before the first use of the level meters. Keep the manual

at a safe place. The manufacturer reserves the right to implement changes without prior notice.

INSTRUCTION MANUAL

WIRELESS REMOTE TANK UNIT

Sentinel Series 

|

 Telemetry

Tank 

|

 Sump Liquid Level Monitoring

AL

R1

R2

MENU

ESC

ENTER

TM

 


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FCC STATEMENT

Sentinel Series Introduction

Overview

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two 
conditions:
(1) This device must not be allowed to cause harmful interference
(2) This device must accept any interference that may cause undesired operation.

The  Sentinel  Series  is  a  wireless  communication  device  that  provides  quick  and  easy  access  to 
remote  information  such  as  storage  tank  inventory.  Intended  for  supplier-managed  inventory 
programs, the Sentinel utilizes the latest internet and cellular technology to provide instant access 
to  inventory  information  around  the  globe.  Coupled  with  the  Sentinel  information  web  site,  the 
Sentinel  can  provide  a  tremendous  advantage  over  conventional  systems  for  inventory 
management, asset control, or information exchange.

For Your Safety

This equipment contains a cellular radio which transmits at several times the power of a hand-held 
cellular phone. While it has been tested to comply with applicable FCC regulations and is approved 
for  use  in  nonresidential  applications,  it  may  still  interfere  with  other  electronic  equipment. 
Therefore its use in certain situations is restricted. Read these installation and operation instructions 
carefully.  Failure  to  follow  these  instructions  may  be  dangerous  or  illegal.  Only  qualified  service 
personnel must install or repair this equipment.

01

Fig 1

TANK / SUMP

SENTINEL

CELLULAR NETWORK

SENTINEL 247 ONLINE

INVENTORY MANAGER

HOW IT WORKS

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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INSTALLATION

Safety Precautions

The Sentinel uses Radio Frequency (RF) waves for communication to the nearest cellular tower and 
can transmit at several times the power of a hand-held cellular phone.
In general, if you can place a cellular telephone call in the location where you wish to install the unit, 
then the Sentinel should be able to communicate properly.
However, because of the inherent characteristics of RF communications, there are certain guidelines 
that should be followed when positioning the unit

DO NOT

 install the Sentinel where hazardous vapors are present.

DO NOT

 use the Sentinel  where  blasting is in progress  Electrostatic  discharge  can  damage 

sensitive electronic components. Be sure to discharge yourself by touching a grounded metal 
object before
opening  the  unit.  The  unit  should  be  installed  in  an  area  free  from  overhanging  metal 
structures, large obstructions, or equipment which could generate RF or electrical interference.

 

DO  NOT

 install  the  unit  below  ground  level  unless  provisions  are  made  for  an  external 

antenna. Service may be limited in areas that do not have GSM cellular coverage and support 
SMS (Short Message Service). If the unit is installed in an area with poor signal strength, an 
external

 antenna may be required for reliable performance. If you have doubt about the suitability 

of a particular location for the Sentinel, or are having difficulty transmitting, please see Sections 

3-2 and 3-3. If an external antenna is required, several optional antennas are available. Please

contact Sentinel Customer Service to determine your exact needs

Transfer of Data

The  Sentinel  communicates  to  the  cloud  based  data  center  using  a  wireless  cellular  technology 
called GSM Short Message Service. This technology allows the unit to transmit digital data to the 
data center using the existing network of GSM cellular towers deployed throughout North America.

 

In order to transmit a data packet, the local GSM cellular carrier must provide SMS (Short Message 
Service).  Once  the  data  is  at  the  cloud  based  data  center,  it  may  be  viewed  over  the 

INTERNET

 

using a standard  web  browser  (i.e.

 

Microsoft  Internet  Explorer),  downloaded  to applications such 

as  Microsoft  Excel,  or  it  may  be  used  to  trigger  events  such  as  an  e-mail  or  text  to  the  inventory 
manager  or  service  representative.  To  access  the  data  provided  by  the  Sentinel  unit,  a  current 
monitoring service agreement with Sentinel is required.

Product Highlights

No telephone line is required for communication.

No external power source is required.

Fast, simple installation.

Flexible sensing technology.

Fixed monitoring costs.

Readily available replacement batteries.

Unlimited applications.

WARNING!

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

02

 


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Initial Inspection

When you receive the Sentinel unit, thoroughly inspect it for any damage, which may have 
occurred during shipping. If there is any damage to the Sentinel, contact the shipping company 
as soon as possible. 
Locate the packing checklist in the shipping container. Check for any missing items before 
you begin installation of the Sentinel.

Note: The Sentinel is shipped with the antenna disconnected. It is located in a separate 
area within the shipping carton. Verify that the antenna is present before proceeding.

03

Mounting a 

100 Series Submersible Level Sensor

 

Differential Pressure Sentinels operate by measuring the pressure (weight) of the liquid the sensor is 
submerged into. This pressure is proportional to the density of the liquid.
The opening on the end of the sensor contains an exposed diaphragm which responds to changes 
in liquid pressure as the tank is filled or emptied with product. This measured pressure is compared 
against  atmospheric pressure, and is converted to a readable signal by a microprocessor in the 
Sentinel.  Please note that the sensor and sensor cable must be clean when installed, to avoid 
contamination  of the contents of the tank. These tanks are inspected for  product contamination, 
and the Sentinel installation cannot compromise the product in the tank.
Care must be taken before and during installation to not strike the sensor against any stationary 
surface. This can frequently occur during installation of the probe into the tank. Shock may damage 
the probe causing it to fail prematurely.

WARNING!

DO NOT

 install the sensor in a liquid that is susceptible to freezing or at the bottom of a tank 

with water in it that may freeze. If the liquid freezes, it will damage the probe which will not be 
covered under warranty.

DO NOT

 install the sensor in a tank with a mechanical agitator

DO NOT

 drop or strike the sensor against a solid object. This may damage the sensor or cause 

a shift in the output of the probe.

DO NOT

 kink  the probe  cable. This  could  restrict  the breather  tube  in the cable  and cause 

fluctuating readings.

DO NOT

 install the sensor where sludge or sediment can clog the probe opening. If necessary, 

suspend the sensor above the maximum level of the sediment.

DO NOT

 use the Sentinel housing to screw the unit into the tank. Use only the wrench flats on 

the bottom fitting.

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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04

Mounting an Sentinel Unit

The  Sentinel  Unit  comes  standard  with  a  3/4  inch  female  NPT  connection  on  the  bottom  of the 
housing  for  direct  connection  into  standard  instrumentation.  The  wiring  will  pass  thru  this  3/4 
inch connection to the terminal strip.

Wiring the Current Loop

The  wiring  for  the  current  loop  passes  thr

ough

 the  bottom  of  the  housing,  thru  the  hole  in 

the electronics board, and connects at terminal strip J3. Refer to Figure 8.

Sentinel Unit Providing Current Loop

In  this  scenario,  the  Sentinel  is  providing  the  power  for  the  sensor  thru  the  current  loop. 
Typically  the  Sentinel  is  mounted  directly  to  the  sensor  using  a  3/4-inch  NPT  connection.  The 
Sentinel  can supply no more than 24 VDC to the sensor. Please note the return wire is connected to 
JP3  –  2  (IN),  and  not  to  GND.  The  electronics  of  the  Sentinel  unit  route  the  return  to  ground 
internally.

Fig

 

2

Providing Current Loop Power

Sentinal Unit Placed in Series with Existing Current Loop
Power (Between +24VDC and existing instrumentation)

In  this  scenario,  the  Sentinel is  wired  into  an  existing,  established  current  loop  on  the 
positive side (between the current loop source and the instrumentation).

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

100 Series

Sentinel

LP100

Junction Box

 


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05

Fig

 

3

Sentinel Installed in an Existing Current Loop

4

 

Unit Activation 

4.1

 

Verifying GSM Signal Strength 

During installation, you can determine your GSM signal suitability by operating a GSM 
cellular phone and confirming its operation capability by placing a call.

ti

4.3

 

 

Establishing Communication 

Once all tank preparation has been completed, the 

Sentinel

 is properly mounted to the 

tank, the

 

GSM SMS (Short Message Service) is available, signal strength has been 

verified, and the number of callouts per day has been properly set, it is now time to 
establish communications with the 

Icon Process Controls

 Data Center. 

1)

Open the top cover of the 

Sentinel

 opened by loosening the screw at the front of the

 

lid

using a 3/16” flat screwdriver. Insert the two batteries into the battery holders at

 

the inside-

front of the housing and connect the optional extended life battery pack if

 

present (J7).

 

Refer

to Figure 

4 ( Next Page )

2)

Verify that the Prophet’s antenna is pointing straight up.

3)

Press the white button on the right side of the unit.  A green LED will light up at the

inside front of the housing.

4)

The green LED will flash fast (half second ON, half second OFF).

5)

Once a cellular network is found, the green LED will flash slow (one second ON, one

second OFF).

6)

The green LED will go to solid ON for about 60 seconds while the unit is

transmitting data to the 

Levelpro

®

 Data Center.

7)

After a successful transmission, the green LED will flash and then go out.  The

Sentinel

 is now in sleep mode, and will remain in sleep mode until the next scheduled

transmission time or until the white button is pressed again.

8)

If the data transmission was not successful, a red LED will light and the green LED

 

will

flash an error code.  Refer to Section 8-1 of this manual for information on the

 

error codes.

9)

Contact 

Icon  Process  Controls

 Customer Service at 

1-

905.469.9283

 to verify a

successful

 

data transmission, and to verify tank information.

10)

Secure the top cover. 

Do not over tighten the screw

.

Sentinel Series 

|

 Telemetry

Tank 

|

 Sump Liquid Level Monitoring

100 Series

 

LP100 Junction Box

Sentinel

 

TVL Series 

Display

 


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Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

Fig 4

 


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After communication has been established, and the tank information has been given to 
the 

Levelpro

 Monitoring Center, the 

Sentinel

 will continue to transmit data based upon 

the number of 

call-outs

 per day set. 

This tank data can be accessed thr

ough

 the 

INTERNET

The  real  power  behind  the 

Levelpro

®

 

Inventory  management  system  is  the  

web site.  On this web site, you may view the current level and status of your devices 
using  a standard  web  browser  download  your  historical  data  to  applications  such  as 
Microsoft Excel

®

, or set up alarm levels to automatically trigger events such as an e-mail 

or page to a local service or sales representative.  The 

Levelpro

 web site is a secure web 

site  which  utilizes  the  latest  in 

INTERNET

  encryption  technology  to  ensure  that 

your  data  stays  confidential.  It  is  constantly  being  upgraded  and  new 
features  are being added periodically.  To obtain the latest details on how to use the 
new features of the web site, follow the links to the help section of the web site.  

4.2

 

Amplifying a Weak Carrier Signal 

If the signal strength is weak as indicated by Error Code 7 in Section 7.1, or if data 
transmissions  are  intermittent,  an  external  antenna  can  be  used  as  a  replacement 
to  the  small  antenna  supplied  with  the 

Sentinel

.    The  external  antenna  connects 

directly  to  a 

Sentinel

 

with 

no 

adapter 

connector 

necessary, 

thereby 

improving  the  antenna’s  performance.    Please  contact 

Icon  Process  Controls

 

Customer  Service  at 

905.469.9283

  for  the  available  and  supported  external 

antenna  options.  The  following  outlines  the  most  common  external  antenna 
installation steps. 

1)

Position the external antenna at a location within cable reach of the 

Sentinel's

installation and attach it to the 

Sentinel

 replacing the small antenna.

2)

Holding the external antenna at the same location where the 

Sentinel

 is installed

(typically the top of the tank).

3)

Test unit by initiating a data transmission with the external antenna, and observing
the Error Code output in Section 7.1.

4)

If the above test doesn’t produce any Error Codes as defined in Section 7.1, proceed
to the next step.  If the Error Code 4, Error Code 7 or Error Code 8 still appears, see
if the external antenna can be moved to a different location, possibly outside the
building or higher into the buildings roof.

5)

Secure the external antenna using either the magnetic base, or the clamp base
supplied with the antenna.

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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5

 

Accessing the 

Levelpro

 Web site 

The web site for accessing the tank data may be accessed from any computer with 
internet access by going to the following URL: 

This will bring you to the 

Levelpro

 Log

 

on page. 

To view your data on the web you must first have a Logon and Password.  A Log

 

on 

and  Password  will  be  provided  to  you  or  to  your  representative  when  the  service 
agreement with 

Icon Process Controls

 is finalized.  If you have forgotten your logon or 

password  or  need  a  new  one,  please  contact  the 

Levelpro

  Customer  Service  at 

905.469.9283

Once  a  valid  log

 

on  and  password  have  been  entered,  you  may  select  which  tanks  to 

view.  Tanks  may  be  viewed  by  geographical  location,  product  type,  region,  etc.  Once 
the  tank  levels  are  viewed,  detailed  information  for  each  tank  may  be  viewed, 
edited, or the historical data for the tank may be viewed. 

When a unit is sold by 

Icon Process Controls

, a default tank entry is set up on the web 

site  and  it  is  assigned  to  the  log

 

on.    When  the  unit  is  installed,  the  pertinent 

information will need to be set up on the web site by the customer. This includes: Tank 
Name, Product type, Tank Location, Contact information, etc.  

Sentinel Series 

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6

 

Sentinel

 Specifications 

Performance Specifications: 

Output Voltage

Nominally 

24V 

±

 5% 

Output Current

 

Rated from 0 – 24 mA 

Load Regulation

 

0.5% from a 24 mA load 

Ripple 

50 mV Peak-to-Peak 

Output Short Circuit Protection 

Output is current limited to 24 mA

 

Accuracy 

± 1% of Span 

Hardware Specifications: 

Differential Pressure Sensor 

SS316; 1 inch (25 mm) OD x 3 inch (76 mm) length; 
0-30 psi (0-2.1 kg/cm2) operating range for 34 ft (10.3
meter) cable; 7.5 psi (0-0.53 kg/cm2) for 17 ft (5.1
meter) cable. 2” Polypropylene NPT fitting.

Ultrasonic Sensor 

PVDF Kynar construction exposed to wetted portion of
the tank.

Housing 

NEMA 4X; weatherproof; UL approved (UL94HB);
glass-filled nylon

Area Classification 

General Purpose environment

Unit Gross Weight 

With Ultrasonic Level Sensor: 2.0 lbs (0.91 kg)
With 7.5 psi range Submersible Differential Pressure
Sensor: 2.1 lbs (0.95 kg)
With 15 psi range Submersible Differential Pressure
Sensor: 2.6 lbs (1.18 kg)

Battery: 

Type 

Three Replaceable Lithium-Ion Batteries (CR-123A)

 

Expected Battery Life 

One call out per day – up to 3 years 
Three call outs per day – up to 1 year

 

Environment: 

Storage Temperature Range 

-40˚F to 185˚F  (-40˚C to 85˚C)

 

Operating Temperature Range 

-22˚F to 167˚F  (-30˚C to 75˚C)

 

6.1

 

Antenna Connector 

Type 

Standard SMA 

Frequency Bands                  

850 (824 – 894) MHz 

      1900 (1850 – 1990) MHz

 

Sentinel Series 

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7

 

Servicing and Troubleshooting 

7.1

 

 

Error Codes 

If the data transmission was not successful from a 

Sentinel

, a red LED will light and 

the green LED will flash an error code. 

Number of 

Red Flashes 

Error Code Description 

Internal  Hardware  Error:   

Sentinel

  could  not  initialize  properly 

due  to  an  internal  hardware  error.    If  this  problem  continues, 
replace the 

Sentinel

 unit. 

Low Battery Voltage:  

Sentinel

 could not transmit due to a low 

battery voltage.  Replace the batteries and re-try a data transmission. 

Radio  Error:   

The  Prophet’s  wireless  transmitter  did  not  power 

on  properly.  Re-try  a  data  transmission.

 

If  this  problem 

continues, replace the 

Sentinel

 unit. 

Cellular Service Error:  

The unit did not detect cellular service.

 

Verify that there is service in the area using the technique in Section 
4.2 or check GSM coverage information on Web Sites in Section 4.6. 
Ensure that the antenna is tightly connected to the unit and is vertical. 
If still not successful, contact 

Icon  Process  Controls

 Customer 

Service for confirmation of data channel availability. 

Cellular Busy Error:  

The 

Sentinel

 could not transmit because 

the cellular network is busy.  Re-try data transmission. 

Radio Respond Error:  

The Prophet’s wireless transmitter did not 

respond  to  the  command  to  transmit  data.    Re-try  a  data 
transmission. If this problem continues, replace the 

Sentinel

 unit. 

Low RSSI Error:  

The data transmission failed due to low signal 

strength Error Code 7 in Section 7.1.  Apply the technique indicated in 
Section 4.3 to establish the best location for an external antenna to 
improve the signal strength. 

Failed Transmission Error:  

The data transmission failed.  Insert new 

batteries  into  the  unit  and  re-try  a  data  transmission.    If  this 
problem continues, contact 

Icon Process Controls

 Customer Service. 

Radio Error:  

The Prophet’s wireless transmitter did not initialize 

properly.  Re-try the data transmission.  If this problem continues, 
replace the 

Sentinel

 unit. 

10 

Memory Error:  

The Prophet’s memory has been corrupted.  If 

this problem continues, replace the 

Sentinel

 unit. 

Sentinel Series 

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7.2

 

 

Battery Replacement 

- Resetting Battery Cloud Based Indication

The 

Sentinel

 operates on 2 CR-123A disposable lithium batteries and an extended 

battery pack.  The 

Sentinel

 estimates the remaining battery life using a sophisticated 

algorithm based on the battery voltage and temperature, cellular signal strength and 
the number of transmissions and retries that the unit has made. This estimate is transmitted 
to the 

Levelpro

 monitoring center and displayed on the internet. The procedure below 

outlines the steps necessary to change dead batteries. 

1.

Carefully loosen the captive screw at the front of the housing using a 3/16” flat
screwdriver, then lift the top cover to expose the electronics and batteries.

2.

Remove the batteries from the battery holder

3.

Press the white button six (6) times; 

  

w

ait 30 seconds to allow the

 

Sentinel

 memory to

initialize.

 

 Install  new batteries, making sure the positive end

 

of each battery is

towards the back of the electronics.

4.

Properly dispose of all expired batteries and pack. 

Never mix fresh batteries with

partially or fully expired batteries.

5.

START the 

Sentinel

: Before closing and securing the lid, press the white START

pushbutton and verify the green LED begins to flash.

6.

Call your customer support representative to verify operation (

905.469.9283

 

 

 via the

Tank Data web portal

 

or

 

update the battery configuration setting from the

 Sentinel

Tank Setup page. See detailed

 

instructions for further information.

7.

Close the monitor lid. Ensure the gasket seal is secure and flush in the groove of the

enclosure base. Failure to do so may allow moisture to enter the enclosure and
damage the electronics.

8.

Tighten the locking screw using a small flat blade screwdriver.

9.

Congratulations you have successfully replaced the batteries.

 When purchasing individual batteries, always use model CR123A. 

 Never use batteries labeled CR123. 

 

Sentinel Series 

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Tank 

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 Sump Liquid Level Monitoring

 


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7.3

 

 

Troubleshooting 

Nothing happens when the Start switch is pressed. 

9

 

Remove all of the batteries. Wait 30 seconds to initialize the 

Sentinel

 memory and 

then reinsert the batteries. If the green LED does not come on when the switch is 
pressed, replace the batteries with new ones. 

Unit cannot transmit to data center. 

9

 

Verify that the RSSI is greater than 20. 

9

 

Verify that there is GSM SMS (Short Message Service) on the side selected in the 
carrier preference setting. 

9

 

Check for interfering structures such as tanks, buildings, or large equipment. 

9

 

Reposition the unit if possible. 

9

 

Check that the antenna connection to the unit is tight. 

9

 

Verify the Serial Number of the unit on the web site. 

9

 

Use an external antenna. 

The level reading is incorrect. 

9

 

Normally, all of the sensor parameters are set up by your 

Levelpro

 account 

representative when the tank is initially configured. On rare occasions, the 
information may not be correctly entered. If you have verified the tank information 
and the tank level is still incorrect, there may be several causes for the incorrect 
reading. If it is a differential pressure sensor, verify the settings for the probe offset 
and the SGU. Either one of these settings may cause the reading to be off. If this is a 
4-20mA current loop sensor, verify the 4mA and 20mA settings. If either of these
settings is incorrect, then the level that is calculated from the sensor data will be
wrong.

9

 

Verify the tank height. 

The level reading is correct but volume is off. 

9

 

Verify the tank capacity. This should be the volume in the tank at the tank height. If 
the tank has a slight cone top but a standard vertical strapping chart is used, then the 

tank height should be only to the shoulder of the tank. 

9

 

Verify that the correct strapping chart is used. 

The unit has stopped calling. 

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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9

 

Replace the batteries. 

 

9

 

Ensure that the antenna is tight and vertical.

 

7.4

 

Obtaining Technical Support 

If you still are having trouble, contact 

Icon Process Controls

 Customer Service at: 

 (1-

905.469.9283)

You will need the following information: 

Sentinel

 Serial Number (label on the bottom of the unit or on the inside of the

unit.

Tank location (city/state).

Tank product

REMEMBER: 

For security reasons, no one from 

Icon  Process  Controls

 will ever ask you for 

your log

 

on or password. 

If it should be necessary to return this unit to 

Icon Process Controls

 for service: 

1)

You must first obtain a Return Authorization Number from 

Icon Process Controls

.

2)

This number must be clearly marked on the outside of the shipping container and on
the service card which was supplied with the unit.

3)

Place the unit with the service card in the original container and ship it prepaid to the
address on the service card.

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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8

 

Replacement Parts 

The following parts are field replaceable and can be purchased thru 

Icon Process 

Controls

 Customer Service at 

905.469.9283

Antenna 

Captive Screw  

Housing Gasket  

Li-Ion Battery 

Model CR-123A  

Replacement Jumper  

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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9

 

Terms and Conditions of Service 

This section explains the relationship between the user of this equipment and 

Icon Process Controls

    

It explains our respective legal rights concerning all aspects of our relationship, including: 

Billing and extra charges

Starting and ending service

Privacy and confidentiality

Early Termination fees ( if applicable )

Limitations of liability and warranty

If you use the service or the equipment, or if you pay any amount billed to your account, you consent 
to the terms and conditions set forth in this agreement. If you do not agree with these terms and 
conditions, do not use the service and equipment and notify us immediately to cancel service. 

1.

Service

This is an agreement for Remote Data Delivery and associated Services between you and

Icon Process Controls

. The term "Unit" is the device which is used to communicate the data to

the 

Icon Process Controls 

Data Center.

The term of this agreement depends on the rate plan which was defined in a separate document
which is also a part of this agreement. The term of this agreement begins on the date that we
activate Service for the Unit. There may be an activation fee associated with the rate plan that you
select. In addition, if you select a rate plan which requires a fixed term of more than one month
(such as a one-year plan), you agree to purchase service for the full term. After the term expires,
or if there is not a fixed term associated with the service, then this agreement will continue in
force until terminated by either party with a 30-day notice. If you select a rate plan with a fixed
term of more than one month, you may terminate service within the first 30 days without a
penalty. If you terminate service after the initial 30 days but prior to the end of the term, or we
terminate following your default, you will be in material breach of this agreement and agree to
pay a cancellation fee as set forth in the rate plan document.

2.

Rates

Your Service rates are described in your rate plan document. Your service rate may be based on
fees for data communication from your Unit and on fees for remote access to your data via the
internet or other electronic means. Additional fees may be added to your monthly fee for services
above your base rate. These additional fees and how they are calculated are described in your rate
plan document.

3.

Data Availability and Service Interruptions

Wireless Data Transmission Service to the 

Levelpro

®

 data center is normally available to your

unit when it is within the coverage area of a GSM Cellular Service provider who is under contract
to provide

 

GSM SMS Data Service. Service is subject to transmission limitation or interruption

caused by weather, terrain, obstructions such as trees or buildings, and other conditions. Service
may be limited in areas where

 

GSM SMS coverage is not available or may be temporarily limited

due to system capacity limits ( such as during peak usage periods ), system repairs, or
modifications. In addition, access to your information via the internet or other electronic means of
transmission may be temporarily limited due to system capacity limitations or maintenance.
Service interruption may also result from non-payment by you.

4.

Use of Service/Unit

You agree not to use the unit or service for any unlawful purposes. You may not resell your
service without prior written contractual agreements with 

Icon Process Controls

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring

 


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10

 

Product Warranty and Notices 

Icon Process Controls

 warrants that the equipment is and will remain free from defects in 

workmanship and materials for a period of one (1) year from the date of delivery. 

Within  the  warranty  period, 

Icon  Process  Controls

  shall,  without  charge  for  labor  or 

materials, repair or replace any defective components provided that reasonable care has 
been exercised in protecting the equipment from adverse conditions and rough handling. 

This warranty does not cover customer instruction, installation, set up adjustments, or signal 
reception problems. This warranty does not cover cosmetic damage or damage due to acts of 
God, accident, misuse, abuse, negligence, or modification of, or to any part of this 
equipment, including the antenna. This warranty does not cover damage due to improper 
operation or maintenance, connection to an improper voltage supply, or attempted repair by 
anyone other than an authorized service facility. This warranty does not cover consumables 
such as a fuse or battery. 

This Limited Warranty is in lieu of all other warranties, express or implied (including 
implied  warranties  of  merchantability  and  fitness  for  a  particular  purpose),  and  of 
all obligations or liabilities of 

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 for damages, including but not limited 

to  consequential  and  incidental  damages,  arising  out  of  or  in  connection  with  the  use  or 
performance of the equipment. 

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 shall not be liable for any damages or loss arising from the use of 

the data from this equipment or the 

Icon Process Controls

 web site. 

Sentinel Series 

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 Telemetry

Tank 

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 Sump Liquid Level Monitoring