Flood and River Monitoring & Alarms

Bespoke Mission Critical Flood & River Level Monitoring, Flood Warning, Flood Alarm and Flood Mitigation Systems.

Our systems can be uniquely configured to detect and report the five common sources of flooding: River; Surface Water; Ground Water; Sewer and Burst Water Pipe. Our systems can also be constructed to detect and generate advanced warnings concerning conditions that can contribute to flooding including the blinding of  trash screens, failed sump pumps, full storm tanks, heavy rainfall, soil saturation and sewer blockages. Systems can also be built to help mitigate incidents, for example the control of pumps to optimise sewer flows to flattened out peaks to prevent overload surcharges and sewer spills.

Our systems can report:

• Surface Water Flooding

• River Flooding

• River Level

• Trash Screen Blinding

• Groundwater Levels / Flooding

• Sewer Flooding/ Sewer Surcharges

• Burst Pipe Flooding

• Storm Tank Level

• Failed Sump Pumps

River Level Monitoring:

We offer a wide range of solutions from simple high “OK” alarms through to high precision systems that deliver river depth to mm accuracy. The systems can include multiple measurement points and data can be routed in real-time to existing telemetry, BMS, SCADA, cloud or a remote web server.

BDT Based Automated River Level Alarm / Staff Gauge

High “OK” River Level Alarms

Our simplest and most popular flood sensor our BDT (Bulk Dielectric Transducer) which was first introduced in 2010 for sewer level monitoring.

Unlike float switches which can get trapped by debris the BDT has no moving parts and has minimal hysteresis making it easy to visually verify the set-point. The BDT  can be installed in drains, stilling tubes and on river banks within hollow staff gauges and normally is supplied with an integrated wireless communication head unit that contains a sealed for life lithium battery pack with up to 10-years service life.

Systems can be constructed that communicate to existing telemetry, BMS, SCADA, the cloud or a remote web server. Further, they can also include sewer and drainage alarms.

Transmitter Build Options:

• 10mW to 5W Transmit Power
• Approvals to EN-300-220, EN-300-113, FCC-Part 90

Gateway Receiver with Relay Outputs

Receiver Build Options:

• Volt-Free Relay Contacts N/O plus N/C
• Serial ASCII RDNET1000 protocol
• LAN – CSV, XML or JSON
• GPRS – CSV, XML or JSON
• Tetra – SDS Message encapsulated packets
• PMR Tier 2 – SDS Message encapsulated packets to confirm the system is operational.

High Precision Hydrostatic Pressure River Level Monitoring System

A range of single and dual redundant telemetry units that can be used to both power and extract the data from 4-20mA, 0-5V or SDI-12 hydrostatic pressure transducers.

Interface Options:

• Single or Dual Channel SDI-12
• 0-2.5V Analogue 10-bit or 16-bit
• 4-20mA Analogue 10-bit or 16-bit
• Pressure equalisation breather vent

Sensor Power Options:

• 6V dc (for Impress SDI-12)
• 12V dc for 4-20mA loop transducers

Transmitter Build Options:

• 10mW to 5W Transmit Power
• Approvals to EN-300-220, EN-300-113, FCC-Part 90

Receiver Build Options:

• 4-20mA output
• SDI-12 converted to 4-20mA
• o-2V, 0-5V, 0-10V
• Serial ASCII RDNET1000 protocol
• LAN – CSV, XML or JSON
• GPRS – CSV, XML or JSON
• Tetra – SDS Message encapsulated packets
• PMR Tier 2 – SDS Message encapsulated packets
•  to confirm the system is operational.

What Else Can our Flood Alarms Do?

• Switch and control pumps
• Activate flow diversion valves
• Activate and drive sirens
• Activate GSM/SMS messages
• Activate wide area or on-site paging systems
• Activate existing alarm systems
• Interface with telephone dial systems
• Interface with Scanning Telemetry
• Interface with rain gauges to permit early warnings

Useful Contact Numbers:

UK’s Environment Agency Floodline

http://www.environment-agency.gov.uk/homeandleisure/floods/31618.aspx