A regulator that normally use the differential pressure principle across an orifice to control the valve trim and regulate flow.
A functional switch that is intended to give a signal when the flow have reached a pre-set value.
A totalizer that adds up flow measurements.
A flow transmitter providing an output signal that is proportional to the flow inputs from a flow element.
A device capable of detecting droplets of water vapour suspended in the air near the ground.
An analyser intended to determine the freezing point of a liquid.
A device that generates an electrical signal of a specified frequency.
A signal converter that is intended to convert a frequency or rotational speed input signal into a 0 - 20 mA or 4 - 20 mA current output signal.
A chromatograph where gas is injected directly into one or more separation columns.
An analyser which analyses the composition of gaseous mixture with two or more components.
A detector that is intended to sense the presence of a specified concentration of a gas.
A chromatograph where a liquid sample is injected and evaporated and subsequently carried to one or more separation columns.
A circuit-breaker in which the arc develops in a blast of gas.
A detecting instrument that is used for measuring or testing.
A process instrument that records values represented by the input signal(s).
A personal H2S monitor is a device that detects the presence of hydrogen sulphide.
A detector capable of detecting both heat and smoke.
An electrical filter having a single pass-band extending from a specified cut-off frequency upwards.
An alarm device that makes a loud warning sound.
A meter intended to measure and indicate and/or produce a signal which represents the measured humidity.
An actuator intended to be operated by hydraulic power.
A controller that is designed or can be programmed to operate and control hydraulic operated systems.
A device which gives a visual indication of a measured value.
A physical object that detects an aspect of something; records, modifies and/or displays such an aspect or performs a combination of these activities.