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	[Vortex Flowmeter] digitalYEWFLO Reduced Bore Type Vortex Flowmeter
	The digitalYEWFLO Reduced Bore Type Vortex Flowmeter features a cast stainless steel body and a concentric reducer and expander that enable stable flowrate measurements in low-flow conditions. This model reduces installation cost and expands the range of applications available to customers.

Features: digitalYEWFLO Reduced Bore Type Vortex Flowmeter

The optimal solution

-	No longer is it necessary to change the orifice plate to adjust for changes in the flow rate.
-	Totalization and self-diagnostic functions are available for enhanced flowrate management.

Easy installation

	<Conventional configuration>
	-	Installation is difficult, involving many different nuts, bolts, and gaskets.
	-	Customer must provide reducers and extension tubes.
	-	There are six connection points, each of which is a potential leak point.



	<The reduced bore digitalYEWFLO solution>
	-	Expanded low flow measurement range
	-	Easy to install
	-	Requires no additional parts
	-	There are only two connection points -- meaning there are fewer locations where leaks can occur.
	-	The same face-to-face dimensions eases the task of installing other sizes or types of digitalYEWFLO flowmeters.

While formerly two different types of orifice plates had to be changed to adapt to fluctuations in the line flow rate, this is no longer necessary with the digitalYEWFLO reduced bore type.
In lines that require annual or long-term flow maintenance, the digitalYEWFLO eliminates the need to interrupt the flow to perform this work.
Yokogawa vortex flowmeters are well suited to high temperature and high pressure applications, and the quality of flow management can be improved even further through the use of anti-vibrating efficiency and self diagnostic functions that rely on the digitalYEWFLO's SSP system.

Specifications: digitalYEWFLO Reduced Bore Type Vortex Flowmeter

		Standard Type	Reduced Bore Type	Multi-Variable Type
Model		Model DY Vortex Flowmeter (Integral Type, Remote Type) Model DYA Vortex Flow Converter (Remote Type) (Option for High Process Temperature Version: /HT, Option for Cryogenic Version: /LT)	Option: /R1, /R2 1 size down: /R1 2 size down: /R2 (Option for High Process Temperature Version: /HT)	Option: /MV
Fluid to be Measured		Liquid, Gas, Steam (Avoid Multiphase Flow and Sticky Fluids)
Nominal Size	Wafer	15 to 100 mm	N/A	25 to 100 mm
	Flange	15 to 300 mm (Special: 400 mm)	R1: 25 to 200 mm (Detector: 15 to 150 mm) R2: 40 to 200 mm (Detector: 15 to 100 mm)	25 to 200 mm (Special: 250 to 300 mm)
Accuracy	Liquid	±0.75% of Reading (Depends on Reynolds number)	±1.0% of Reading (Depends on Reynolds number)	±0.75% of Reading (Depends on Reynolds number)
	Gas Steam	±1.0% of Reading (Depends on flow velocity)
Output Signal		Dual Output (Both analog and pulse output available) Communication: HART 5/HART 7, BRAIN, FOUNDATION^™ fieldbus
Process Temperature		-29 to 250 deg C -29 to 450 deg C (/HT) -196 to 100 deg C (/LT)	-29 to 250 deg C -29 to 450 deg C (/HT)	-29 to 250 deg C -29 to 400 deg C (Special)
Process Pressure		-0.1MPa (-1kg/cm²) to flange rating
Ambient Temperature		-29 to 85 deg C (Depends on model type)
Ambient Humidity		5 to 100% RH (No Condensation)
Mounting		Flange or Wafer Type JIS 10/20/40K ANSI 150/300/600/900 (Special: 1500) DIN PN 10/16/25/40/ 60/100/160	Flange Type only JIS 10/20K ANSI 150/300	Flange or Wafer Type JIS 10/20/40K ANSI 150/300/600/ 900 DIN PN 10/16/25/40
Electrical Connection		JIS G1/2 Female, ANSI 1/2NPT Female, ISO M20×1.5 Female
Explosion Protected Type		TIIS Ex d, FM Ex d/Ex ia, ATEX Ex d/Ex ia, CSA Ex d/Ex ia, IECEx Ex d, SAA Ex ia
Material		Body: Stainless steel(Special: Hastelloy, Carbon steel) Shedder Bar: Duplex stainless steel(Option: Stainless steel, Hastelloy) Gasket: Stainless steel with Teflon coating (/HT: with Silver plating) Converter housing, case and cover: Aluminum alloy(Option: Stainless steel)