Engineered solution
Industrial instrumentation integration
Instrumentation integration brings flow, pressure, level and temperature measurement together with valves, hook-ups and signal connections, so that instruments are specified, installed and wired to deliver usable data to the control system.
How integration works
An instrument only delivers value when the whole measurement chain is right: the process connection and impulse or hook-up arrangement, isolation and vent valves, the sensor itself, its power supply, the cable and signal path, and the configuration of range and units in the receiving PLC, DCS or recorder. Integration means treating these as one system. A pressure transmitter, for example, typically needs a root valve, a manifold for isolation and equalising, suitable tubing and fittings, and a signal and scaling that match the control system input. Planning the chain end to end reduces common faults such as incorrect ranging, leaking impulse lines, ground loops and instruments that cannot be isolated for calibration.
Where it fits
This approach suits new measuring points on existing plant, upgrades where several instruments are replaced together, skid packages that need a complete instrument and valve set, and projects where measurement data must be brought into a SCADA or monitoring system. It is also useful where existing readings are distrusted and the cause may lie in installation rather than in the instrument. For a single like-for-like replacement, a straightforward product enquiry may be enough.
Elements of an integrated package
A package may combine flow, pressure, level and temperature instruments, thermowells, gauge root valves, manifolds, condensate pots, tube fittings, cable glands and junction boxes, along with signal conversion, display or totalising units. Documentation such as an instrument index, hook-up sketches, loop details and calibration records can be agreed as part of the scope. The specification for each point is built from the process data sheet so that open values are visible.
When this approach fits
- Several new measuring points must be added to an existing process
- Instruments, valves and hook-ups are needed as a matched set
- Measurement data must reach a PLC, DCS or SCADA system
- Existing readings are unreliable and installation may be the cause
- Skid or package equipment needs a complete instrumentation scope
Design constraints to confirm
- What variable is measured at each point, and in what fluid and condition?
- What are the normal and maximum ranges and the required accuracy?
- What process connection, hook-up and isolation arrangement is needed?
- What signal, protocol and power supply does the control system require?
- Is a hazardous-area classification or ingress protection level specified?
- What calibration and documentation are required at hand-over?
Inputs for a site study
Share what you know. Anything you are unsure of can be marked “not known” — our engineers will help confirm it.
- Measurand
- Fluid
- Measurement range
- Accuracy
- Process connection
- Output
- Signal
- Power
- Protection
- Calibration
Process
How a project typically runs
- Send the instrument list, process data or P&ID for the measuring points
- We review each point and list unknowns such as range, accuracy or connection
- Datasheets and hook-up arrangements are prepared or confirmed against the duty
- A proposal covers instruments, valves, accessories and agreed documentation
- Supply follows, with installation, loop checking or commissioning where in scope
Instrumentation & measurement
Components and options
Electromagnetic flow meters
Electromagnetic flow meters measure the volumetric flow of electrically conductive liquids in closed pipes, with no moving parts in the flow path.…
Vortex flow meters
Vortex flow meters measure the volumetric flow of liquids, gases and steam by counting the vortices shed from a bluff body placed…
Flow transmitters and totalizers
Flow transmitters convert the signal from a flow sensor into a standard output for control systems, while totalisers accumulate flow over time…
Pressure transmitters
Pressure transmitters measure gauge, absolute or differential pressure and send a proportional electrical signal to a controller or display. They are used…
Hydrostatic level transmitters
Hydrostatic level transmitters are submersible pressure sensors that measure liquid level from the pressure of the column above them. They are used…
Temperature sensors and transmitters
Temperature sensors such as thermocouples convert process temperature into an electrical signal, and temperature transmitters turn that signal into a standard output…
Instrumentation tube fittings
Instrumentation tube fittings for small-bore process and analyser lines, covering connectors, unions, elbows, tees, plugs and adapters in stainless steel and nickel…
Condensate pots and air headers
Condensate pots for steam and vapour impulse lines and air headers for distributing instrument air, in carbon steel, mild steel and stainless…
Thermowells and fittings
Thermowells that protect temperature sensors from process pressure, flow and corrosion and let sensors be replaced without draining the line, machined straight,…
Gauge root valves
Gauge root valves for the first isolation point between a process tapping and its impulse line, gauge or transmitter, in bar-stock construction…
Instrumentation valve manifolds
Instrument valve manifolds in 2-valve, 3-valve and 5-valve configurations for isolating, equalising, venting and calibrating pressure and differential pressure transmitters and gauges…
Instrument hook-up assemblies
Instrument hook-up assemblies that connect a process tapping to a pressure gauge or transmitter, combining root valves, tubing, fittings, manifolds and, where…
Related problems and industries
Frequently asked questions
What is an instrument hook-up?
A hook-up is the arrangement of tubing, fittings, valves and accessories that connects an instrument to the process. It allows the instrument to be isolated, vented, drained and calibrated, and protects it from conditions such as high temperature or pulsation. The correct hook-up depends on the fluid, the measurement and the mounting location.
Can instruments be supplied ready for an existing control system?
Instruments can be specified with an output signal, protocol and range to suit your system. Please share the input types and protocols of the receiving PLC, DCS or recorder so that compatibility can be checked.
What documents can be requested?
You can request datasheets, hook-up sketches, an instrument list and calibration documentation. Stating your documentation requirements at the enquiry stage allows them to be confirmed in the proposal.
Not sure this is the right approach?
Answer a few questions about your site. Unknowns are fine — an engineer reviews every brief.