Instrumentation and control equipment

Description

The aim of this procurement process was to set up mandatory kit framework agreements with suppliers who are capable of supplying and delivering any number of the 22 monitoring and control instrumentation lots outlined. The instrument(s) shall be capable of measuring pH in raw water, partially treated water and final treated water in potable water treatment, and in crude sewage, final effluent, mixed liquors and sewage sludge. The instrument(s) shall be capable of measuring the concentration of free available residual chlorine or total available residual chlorine in partially treated water and final treated water in potable water treatment. The instrument(s) shall be capable of measuring the turbidity in raw, partially treated water and final treated water in potable water treatment, and in final effluent in wastewater applications. The instrument(s) shall be capable of measuring the suspended solids in crude sewage, settled sewage, mixed liquors and final effluent in wastewater applications and clarifier and clarifier desludging applications in water treatment processes. The instrument(s) shall be capable of measuring the conductivity in raw, partially treated water and final treated water in potable water treatment. They should be able to monitor conductivity in all wastewater treatment applications. The instrument shall be capable of measuring the concentration of either dissolved or total acid soluble iron, aluminium and manganese in natural waters, and a residual coagulant in partially treated and final potable water. The instrument shall be capable of measuring the concentration of either dissolved or total acid soluble iron in final effluent in wastewater applications. The instrument(s) shall be capable of measuring the concentration of dissolved oxygen in sewage plant effluent and in the mixed liquor of an activated sludge plant. The instrument shall be capable of measuring phosphate or ammonium in crude sewage, settled or partially treated sewage, mixed liquors and final effluent. Primarily the instrument(s) shall be capable of measuring transmissivity in potable water applications including UV irradiation. Primarily the instrument(s) shall be capable of measuring transmissivity in waste water treatment applications including UV irradiation. The level switches shall be used for limit detection or overspill protection and be capable of detecting liquid level in a range of applications ranging from crude sewage through to final effluent in wastewater application and from raw water to potable water in water applications. Applications will include both conductive and non-conductive tank installations. The level transmitter shall be capable of inferring liquid level measurement by means of hydrostatic head in a range of applications ranging from crude sewage to final effluent in wastewater applications and from raw water to potable water in water applications. Instruments will be required for borehole level measurement applications and reservoir depth measurement applications. Applications may include requirements for rod or rope type instrument versions. The ultrasonic and radar level measurement transmitters shall be capable of detecting liquid level in a range of applications ranging from crude sewage to final effluent in wastewater applications and from raw water to potable water in water applications. Additionally instruments will be required to monitor chemical level in storage tanks containing a wide range of chemicals found in the water and wastewater treatment processes e.g. Ferric Sulphate, Sulphuric Acid etc. Open channel flow (by ultrasonic or radar) to be used for flow measurement including for the Company MCerts applications. The monitors will be used to identify the interface between high settled solids in the lower region of a vessel and the lower solids region above this. The float switches shall be capable of detecting liquid level in a range of applications ranging from crude sewage through to final effluent in wastewater application and from raw water to potable water in water applications The instrument(s) shall be capable of measuring flow in raw water, partially treated water and final treated water in potable water treatment, and in crude sewage, final effluent and sewage sludge including MCert applications. Instruments are required for chemical dosing applications for a range of chemicals found in the water and wastewater treatment processes. The instrument(s) shall be capable of measuring the volumetric flow of liquids in water treatment and distribution applications. These applications are specifically for closed pipes via insertion. The instrument(s) shall be capable of measuring flow in raw water, partially treated water and final treated water in potable water treatment, and in crude sewage, final effluent and sewage sludge including MCert applications. The instrument(s) shall be capable of measuring flow in raw water, partially treated water and final treated water in potable water treatment, and in crude sewage, final effluent and sewage sludge including MCert applications. The applications may be single sensor applications or multipath sensor arrays, with multiple paths (up to 4) connecting into one signal converter. The instrument(s) shall be capable of measuring the mass flow of gasses in wastewater treatment such as air and biogas. These applications can either be closed pipe applications or insertion type. The temperature transmitter shall be capable of measuring temperature in a range of applications ranging from crude sewage to final effluent in wastewater applications and from raw water to potable water in water applications Fixed site refrigerated sampler for wastewater and surface water monitoring, with optional multi sample or composite sample bottler systems. Portable sampler required for the same duties. The instrument shall be capable of measuring a number of water quality measures typical to both water treatment and water distribution applications. These may include turbidity, pressure, pH, free chlorine, total chlorine, combined chlorine, conductivity and dissolved oxygen. Sample would be provided to the analyser under pressure. In each case it is expected that the analyser will be battery powered and provide a range of outputs for connection into a UU specified data logger so that water quality data can be gathered securely from remote locations.