An authoritative collection of values with a relationship to instrumentation. The columns of this collection is specified and controlled.
A mechanical controller that is intended to position a given item in accordance with a received input signal.
An 'equipment class' that is a class of devices engaged in meteorological observations
A microphone, sometimes called a mic (pronounced mike), is a device that converts sound into an electrical signal.
Short for modulator/demodulator. A communications device that converts one form of a signal to another that is suitable for transmission over communication circuits, typically from digital to analogue and then from analogue to digital.
An operated valve that is opened and closed with a motor.
An analyser giving as output a signal that represents more than one physical properties of the analysed substance.
A flow meter for the metering a mixture of two or more fluid phases.
A valve not designed to regulate flow (e.g. on/off). A valve with multiple orifices or flow-restriction device to control fluid flow. Includes an actuator that needs auxiliary power to operate.
Is an artefact intended for a number of input channels to share one output channel.
A valve not designed to regulate flow (e.g. on/off). A multi port valve which has the possibility of multiple distinct paths for flow through it. Includes an actuator that needs auxiliary power to operate.
A needle valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.
A very accurate flow meter used to record oil exports.
A level transmitter that is producing a standardized electrical output signal based on the input signal from a nucleonic level detector.
A mist detector that is intended to detect oil mist.
A post or buoy placed over a shoal or bank to warn vessels, also a signal mark on land.
Equipment which projects an image on a screen by passing light through a transparent slide or other transparency.
An element designed to measure an oxidation reduction potential (ORP).
One-way communications device in which the intended receiver is alerted to receive a message or return a phone call.
A system intended to contact people through a pager. It is pre-date mobile phone technology.
An analysing instrument intended to measure, indicate and/or produce a signal which represents the measured alkalinity / acidity in a fluid or matter.
An element designed to measure pH (potential of Hydrogen).
A detector that is intended to detect a pig inside the pipeline or pig receiver.
A pressure relief valve that uses a pilot valve to indirectly activate the main valve.
A lift check valve that has a free gravity or spring loaded piston type closure member.
A fluid sensor producing a differential pressure by means of two straigth tubes mounted in line with the direction of the fluid movement. One tube is open-ended and measures the stagnation pressure of the fluid. The other tube is closed in front but has openings along the tube to measure the static pressure of the fluid.