Product Highlights; Installation; Safety Precautions - Level Pro Sentinel Series Instruction Manual

Sentinel Series
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Tank Sump Liquid Level Monitoring
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

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No telephone line is required for communication.
• No external power source is required.
• Fast, simple installation.
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Flexible sensing technology.
• Fixed monitoring costs.
• Readily available replacement batteries.
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Unlimited applications.

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.
WARNING!
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
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Telemetry
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