XACT WATER CUT

PRODUCTS

XACT WATER CUT

PRODUCTS

The clamp-on XACT Water Cut meter provides accurate, reliable and cost effective 0-100% water cut measurement with high accuracy of +/-1% absolute over the whole range. The measurement happens on the outside of the pipe, offering a true non-intrusive clamp-on water cut meter.

Clamp-on design

Our water cut meter is clamped to the outside of a pipe and measures the percentage of Water-In-Oil (WIO) with ultrasonic signals straight through the pipe wall. The clamp on design allows for easy installation (2-3hrs) and it can be installed close to bends and valves if needed.

Measurement principle

By measuring the Speed of Sound (SoS) of acoustic signals through the water and oil mixture, we can determine the water cut.

XSENS has over many years and together with the Christian Michelsen Research Institute and NORCE uniquely created a model to measure the water-in-oil with high accuracy over the full 0-100% water cut range. The distance travelled per unit of time in meter per second (m/s) is very different for water and oil. Therefore, it is possible to measure the water cut in oil in a liquid mixture.

The figure on the right is illustrating that there is not a linear correlation between water cut and Speed of Sound. After years of investigating, XSENS found the correct model (not illustrated).

Reliability

Since the meter is not in contact with the liquids due to it’s clamp-on design, it is not affected by erosion, corrosion, waxing, scaling or leakages. This makes the meter very reliable and robust, with minimal maintenance required.

Measuring Net Flow Rates

It is also possible to measure flow rates of oil and water at the same time as measuring the water cut. This is possible with our other product which combines both measurements: the XACT Liquid Flow & Fraction meter.

Relation between Water Cut and Speed of Sound

This meter is used to measure water cut in harsh industrial environments. It has a lightweight design and is available from 1.5 inch to 36 inch as standard and bigger on request. It comes with an integrated flow computer to provide the required outputs through analogue 4-20ma or digital Modbus signals.

There is no limit on pressure, viscosity or sour service as it does not affect the measurement or the meter itself. There is also no need for static mixers or flow straighteners.

For remote installations we can offer WiFi, cellular and satellite signals while adding solar panels for power. The meter can be accessed remotely through internet connection to be monitored and updated if needed.

Local displays for local reading of measurements can be added on request.

The meter is Ex Zone 1 and 2 certified for hazardous areas and can also be supplied without such certification to reduce cost.

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Benefits Industries Video Specification Documents News

Benefits

Measure water cut (WLR, Water Liquid Ratio) ranging from 0-100% with high accuracy +/- 1% absolute
Integrated flow computer provides water cut output
Clamp on design makes it easy to install (2-3hrs)
No need for static mixers or flow straighteners
No pressure drop

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Industries

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Applications

Video

Xsens Specification

	Item	Requirement	Range
General	1	Line size	1.5″ to 36″ and higher
	2	Line Schedule	Any
	3	Pipe Class	Any
	4	Pipe Material	Carbon Steel, SS316,Duplex (others)
	5	Hazardous Area Protection	Atex, IECEx Zone 1 and 2
	6	Explosion Group / Gas group	IIB
	7	Temperature class	T3
	8	Max Ambient temperature	60°C
	9	Ingress Protection	IP 66 (higher on request)
Process Conditions	10	Fluid	Water and oil mixture
	11	Phase	Liquid
	12	Corrosive / Erosive	Can handle both due to clamp-on design
	13	Case	Min	Max
	14	Flowrate m/s	0	40
	15	Density	No limit	No limit
	16	Design pressure	No limit	No limit
	17	Design Temperature	-20 deg C	100 deg C (higher as option)
	18	Viscosity	Range from water to heavy bunker oil
Sensor	19	Sensor Type	Ultrasonic non-intrusive (clamp-on type) Up to six pairs (redundancy)
	20	Measurement Principle	Ultrasonic Speed Of Sound
	21	Housing Sensor Material	SS316 / Aluminium
	22	Cable from sensor to transmitter	Armored, flame retardant type (xx meters length)
	23	WLR (Water Liquid Ratio) range	0-100% WLR
	24	Accuracy WLR (Water Liquid Ratio)	+/- 1% abs. (note 1)
	25	Removable Assembly	Yes
	26	Electrical Connection	4-20mA / Modbus (WiFi, Canbus, Profibus and other on request)
	27	Upstream Straight Length	2-5D (target)
	28	Downstream Straight Length	2-5D (target)
Transmitter	29	Housing Material	SS316 / Aluminium
	30	Electrical Connection	To custom specifications
	31	Power Supply	12-24 VDC (external power, or other) Typical 9,5Watt and 11 Watt at start up
	32	Output Signal	Modbus serial connected to flow computer via RS-485 /4-20mA (others on request)
	33	Mounting	Integrated in sensor
Options	34	Pressure Transmitter	NA
	35	Temperature Transmitter	2*PT 100 elements included (note 2)
	36	Flow Computer	Included
	37	Local Display	Optional
	38	Mounting Kit	Included
	39	Weight	From 25 kg to150 kg depending on size
	40	Dimensions	See GA drawings from Xsens
	Note 1	Poor mixing / stratified flow of oil and water can reduce accuracy in horizontal flow
	Note 2	For installation at unstable temperature conditions, we recommend using local temperature readings