prj_6010 - Telemetry Framework Lots 5a, 5b and 5c

Telemetry shall provide a means of transmitting key data and alarms between the site and an area or regional control centre. All operational sites that include electro-mechanical assets shall be provided with Telemetry monitoring. In some instances, telemetry may also be used to remotely control assets – typically pumps in the water supply process.

Other sites or locations that do not include electro-mechanical assets may also have a requirement for telemetry where specified by the Purchaser - this includes such assets as reservoirs, sewers and outfalls.

Southern Water Services (SWS) is looking to procure remote telemetry units. That is, an outstation / field device that provides remote monitoring, control and diagnostic facilities for isolated and unmanned sites.

Southern Water Services (SWS) wishes to procure flow and pressure logging equipment or devices that are used to measure flow and pressure within the potable water network, enabling SWS to monitor live data enabling the use of network operating systems to carry out Calm network operations.

Flow devices – Pre-Calibrated, and able to accurately measure flow within the network giving real time l/s performance of the network.

Flow devices where possible should record the following:

• Flow measurement
• Temperature measurement
• Pressure measurement
• Analytical measurement
• Level measurement
• Battery Usage / % left
• GSM/GPRS/NBIoT Signal Strength

Pressure Logging devices - Pre-Calibrated, and able to accurately measure pressure within the network giving real time m/h performance of the network.

The simplest loggers record one channel of pressure data and are suitable for locations such as the AZP (Average Zonal Point) or CPP (Critical Pressure Point), however pressure loggers with greater than one channel recording are required.

Pressure devices where possible should record the following:

• Pressure measurement
• Temperature measurement
• Analytical measurement
• Battery Usage / % left
• GSM/GPRS/NBIoT Signal Strength

Data acquisition:

1. Flow devices should be logging at a minimum of 15min cycles and be set to transmit this data back to the main server at 15minute intervals.

2. Pressure devices should be logging at 1min cycles and be set to transmit this data back to the main server at 15minute cycles.

Data availability and storage costs need to be made available before any procurement is carried out to ensure the most cost effect solution for need is selected.

The interval and cycles should be able to be changed remotely to near real time data with this information being available for incident control.

Battery Life:

Battery Life is predicted to be between 5-8 years dependent on signal type (NBIoT), however in remote locations battery life can be reduced down to months as opposed to years, therefore it is suggested that:

a. Solar Panel for battery trickle charging / power supply.

b. The post for the Solar Panel would also allow an external antenna to be fitted improving the quality of network connection in remote locations.

Spare Batteries should either be provided as part of the contract or be readily available “off the shelf” from the supplier so that continuous logging can be carried out, resulting in minimal loss of data.

Data processing software: All raw and / or processed data is to be made available for access and transfer to SW Waternet system.

Output displays: Hand-held or on-line displays with full integration into SWS event management platforms.

IP68

Monitors, cabling and connections / ancillaries will be IP68 rated to prevent the ingress of dirt particles and liquid into the equipment.

Pre-assembled system shall be provided ready to be used by SWS Framework contractors.

Environmental operating conditions

The unit and the battery shall not fail due to the issue of misting or condensation and if required shall be supplied with a drip shield.

The unit and the battery shall not fail due to inundation and submergence shield shall also be provided if required.

The performance of the unit and the battery shall not be affected by changes in temperature or humidity within the installation. Additional information: Full tender pack is available from the Southern Water Services E-sourcing portal

https://southernwater.bravosolution.co.uk/