The Keynes Controls tidal monitoring systems offer a range of flexible solutions to monitor and report tide information and any other environmental parameters associated with these measurements such as humidity, barometric pressure, wind speed and direction.

The systems are flexible and allow many different manufacturers wave sensors to be installed and can be used with acoustic as well as pressure tide sensors.

The systems can record information for later download, send automatic reports to a number of users and notify an operator when a specified event has occurred. An alarming system can be used to show when a sensor signal is outside defined limits and can be used to notify a user should an instrument be tampered with.

All the data recording units are Internet ready and allow data to be examined and the instruments configured using a web browser no matter which type of data connection is being used.

·	Wide Range of Sensor Support

·	Common User Interface

·	Internet Ready Network Support

·	Ethernet Port

·	Multi-user Access

·	Automatic Data Reports across

the Internet

·	8 or 16 Sensor Inputs

·	Automatic E-mail Alarm System

·	Acoustic & Pressure Sensor Support

·	Real-time information in Engineering Units

·	Spreadsheet compatible data files

·	Easy Expansion

·	GPRS / GSM Modem Support

·	Hayes Compatible Modem Support

Power Supply 12-20 V DC @ 3W
Physical Size

No of Channels 8 Diff or 16 Diff depending upon specified model

Data Loggers 2 Independently Configurable Recorders
General Logger - 13,000 Records 8 Channel Unit
6,500 Records 16 Channel Unit
Event Logger - 13,000 to 3 million records
(Permanent data storage)
Logger Sample Rate General Logger - User Defined - 1 sec to 3600 Sec (Hour)
Event Logger 0.1,1,10,60,600,3600 Sec
Data Reports Automatic E-mail Reports configurable for
Hourly, Dairly, Weekly, Monthly, No Records
FTP Server for dial-in data download
File Format Comma Separate Variable CSV

Modem Support GSM Mobile Phone with data link, GSM Modem, Hayes compatible Modem

Sensor Inputs RTD, Thermocouples, Voltage, Current, Restistance, Strain Gauges, Load Cells, Current Loop 4-20 mA and 0-20 mA

Status Messages Isalive (Dated Report) OnBootup (when unit restarts)
Network Ports Ethernet Port, RS232 Modem Port, Internet Ready
ADC Resolution 24 Bit ADC - 16 Million Levels
Input Range 0,25mv, 50mV, 100mV, 500mV,1V, 5V
Sample Rates 1 to 100 Hz for 8 channel systems
1 to 50 Hz for 16 channel systems
WebServer Systems Configuration and Data Viewing

The system schematic above shows

exactly the layout of the data logger

and modem making up the Tidal

Monitoring instrumentation. The cabinet

is Poly Carbonate to prevent environmental

damage and yet maintain the highest signal

integrity for the radio modem